Champion 250-USN-72 Service Manual

For machines beginning with S/N 90922 through 99999,
and S/N J1050 and above
NSN
MODEL
APL/CID
HEAT
FEED
7320-01-492-0431
7320-01-466-8334
7320-01-481-9078
7320-01-481-9081
7320-01-481-9084
7320-01-481-9085
7320-01-481-9088
7320-01-482-8288
7320-01-481-9075
7320-01-481-9077
250-USN-72
250-USN-72
185-USN-72
185-USN-72
135-USN-72
135-USN-72
85-USN-72
85-USN-72
60-USN-72
60-USN-72
43A010064
431070018
43A000032
43A000033
43A000034
43A000035
43A000036
43A000037
43A000038
43A000039
Steam
Steam
Steam
Steam
Steam
Steam
Steam
Steam
Steam
Steam
R-L
L-R
R-L
L-R
R-L
L-R
R-L
L-R
R-L
L-R
7320-01-506-0547
7320-01-506-6296
7320-01-506-0543
7320-01-506-6292
7320-01-506-0567
7320-01-506-6287
7320-01-506-0565
7320-01-506-6324
7320-01-506-0566
7320-01-506-6307
250-USN-72
250-USN-72
185-USN-72
185-USN-72
135-USN-72
135-USN-72
85-USN-72
85-USN-72
60-USN-72
60-USN-72
Pending
Pending
Pending
Pending
Pending
Pending
Pending
Pending
Pending
Pending
Electric
Electric
Electric
Electric
Electric
Electric
Electric
Electric
Electric
Electric
R-L
L-R
R-L
L-R
R-L
L-R
R-L
L-R
R-L
L-R
Technical Manual
Rack Conveyor
Dishwasher
Model
USN-72
High Temperature
Two Tank Rack Conveyor
with MRAN 90°
TMIN: 12345678
March, 2005
Champion Manual P/N
P. O. Box 4149
Winston-Salem, North Carolina 27115-4149
336/661-1556
Fax: 336/661-1660
Champion Industries, Inc.
PSN: 12345678
112804 Rev.I
Complete the information below for quick reference.
Model Number
Serial Number
Voltage and Phase
For Service:
The Source
502 Rotary Street.
Hampton, VA 23661
Phone:
(757) 825-1600
1-800-497-2144
Fax:
(757) 825-1202
website: www.thesource2000.com
email: Darlene [email protected]
Ed [email protected]
Kenny [email protected]
Larry [email protected]
Note: When calling to order parts, be sure to have the model number, serial number,
voltage and phase of your machine.
OFF ON
POWER ON
START
STOP
BOOSTER
LOW TEMP
Machine Data Plate with
Model & Serial Number
located on the remote
control cabinet.
COPYRIGHT © 2004 by Champion Industries, Inc.
TECHNICAL PUBLICATION SHEET
TECHNICAL PUBLICATION SHEET
i
TECHNICAL MANUAL VALIDATION CERTIFICATE
TECHNICAL MANUAL VALIDATION CERTIFICATE
ii
APPROVAL AND PROCUREMENT RECORD
APPROVAL AND PROCUREMENT RECORD
iii
TECHNICAL MANUAL DEFICIENCY/EVALUATION REPORT (TMDER)
TECHNICAL MANUAL
DEFICIENCY/EVALUATION REPORT (TMDER)
(Form - NAVSEA 9086/10, REV. 6/85)
iv
REVISION RECORD
REVISION RECORD
Revision
Date
Revised
Pages
Serial Number
Effectivity
Comments
4/29/98
All
90922
First Issue of Manual and replacement
parts lists
3/16/00
All
J1050
Added electric tank heat to and
revised chain tensioner
3/9/01
58-59
J1051
Added end panels, front panels,
revised leg assy
3/9/01
60-61
J1051
Revised tank fill piping assy
3/9/01
3/9/01
62-63
66a-67a
J1051
J1051
Revised final rinse piping assy
Revised track and guide assy
3/9/01
68a-69a
J1051
Revised chain tension assy
3/9/01
70-71
J1051
Added end panel
3/9/01
86-87
J1051
Revised drain assy
3/9/01
90-91
J1050
Revised control cabinet
3/9/01
90a-90b
J1051
Revised control cabinet
3/9/01
94-102
J1080
Added MRAN 90°
3/9/01
104-107
J1080
Added CH-60 Electric Booster
(For USS RAmage Only)
2/27/02
61,63
J1534
Added new vacuum breakers and kits
2/27/02
71
Replaced P/N's 112606 and 112607
with new part numbers 113398 and
113399.
4/8/02
102
Corrected spacer number for bubble 16
to 15.
Corrected part number 111064 to
111603 and 111605.
Corrected motor clamp from 314351 to
325622.
103
4/30/02
71
Replaced part number 112608 and 112783
with 110164.
Added V-belt 100795.
7/31/02
67, 67a
1/20/03
Front Cover
1/21/03
10,11
Corrected connection points from 3/4"
to 1/2" on hot water supply lines to
dishwasher connections.
1/23/03
20
Added prime switches to drawing and
control functions.
J1616
Replaced part number 112708 with part
part numbers 900840 and 113509.
Added APL numbers.
v
REVISION RECORD
REVISION RECORD (CONT.)
Revision
Date
Revised
Pages
Serial Number
Effectivity
Comments
1/23/03
88, 89
J1698
Added P/N 109069 control thermostat.
6/23/03
91, 91a
8/13/03
59
8/13/03
60, 63
8/14/03
85
8/14/03
92-93,92a-93a
92b-93b
Inserted new replacement kits for
selector switches, pushbuttons, lighted
switches
8/14/03
93,93a,93b
Replaced Furance (Siemens) overloads
with Telemecanique (Square D) .
11/6/03
11, 13, 14-16,
21
J1872
Insert new junction box location and
installation information.
11/6/03
76b, 77b
J1872
Inserted new pages for terminal block
and strip drawing and parts.
11/06/03
82a, 83a
J1872
Inserted new pages for wash and rinse
tank junction boxes drawings and parts.
J1872
Inserted new schematics and interconnection drawings.
J1921
Inserted additional curtain and curtain
rods in between wash and rinse tanks.
11/06/03
vi
10/13/04
58, 59
3/16/05
101
Revised part number for selector switch.
J1589
Revised P/N 317331 to 325351.
Revised plastic style vacuum breakers
with bronze style.
J1332
Revised P/N 111841 to 112379 and
112338 pump flange with gasket.
Corrected part number for item 8 from
208386 to 202381. Inserted note for
crank direction.
THIS PAGE
INTENTIONALLY
LEFT BLANK
vii
SAFETY SUMMARY
SAFETY SUMMARY
Safety Symbols
• The following symbols appear throughout this manual alerting you to potential hazards.
Statements associated with each symbol are printed in italics.
WARNING:
Warning statements indicate any condition or practice that
could result in personal injury or possible loss of life.
!
CAUTION:
Caution statements indicate any condition or practice which,
if not strictly observed or remedied, could result in damage to
or destruction of the dishwasher.
NOTE:
Note statements indicate any condition or practice which,
if observed, will help in the safe completion of a task.
General Safety Rules
• The following general safety rules must be observed in addition to the specific cautions and warnings
presented in this manual.
• Your Champion dishwasher is a heated machine using very hot water to clean and sanitize a variety of
wares. Machine surfaces and wares become hot during and immediately following normal operations.
Consult your supervisor and wear protective gear as directed to avoid possible injury.
• Your dishwasher contains moving conveyor parts.
Use caution when working around the dishwasher especially when loading or unloading wares.
• Operators must NOT bypass a safety interlock or control to operate the dishwasher.
• The service and maintenance instructions contained in this manual are intended for qualified service
personnel. These instructions assume that you are trained in basic electricity and mechanical theory. If
you are not a trained technician, then do not attempt to adjust or repair the dishwasher as serious
personal injury or damage to the dishwasher may result.
viii
SAFETY SUMMARY
Warning and Caution Statement Listing
•
The following listing gives the page number and text of all the warning and caution statements that
appear in this manual.
Warning Statements
Pg. 8- The installation of this unit must conform to local codes or, in the absence of local codes, to the National
Electrical Code and all National Codes governing plumbing, sanitation, safety and good trade practices.
Pg. 10- The installation of water supplies must conform to local codes or, in the absence of local code, all National
Codes governing plumbing, sanitation, safety and good trade practices.
Pg. 10- The installation of steam supplies must conform to local codes or, in the absence of local code, all National
Codes governing plumbing, sanitation, safety and good trade practices.
Pg. 12- The installation of drains must conform to local codes or, in the absence of local code, all National Codes
governing plumbing, sanitation, safety and good trade practices.
Pg. 12- The installation of ventilation must conform to local codes or, in the absence of local code, all National Codes
governing plumbing, sanitation, safety and good trade practices.
Pg. 13- The installation of electrical supplies and controls must conform to local codes or, in the absence of local
codes, the National Electrical Code and good trade practices.
Pg. 13- Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the local electrical distribution
system.
Pg. 13- When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch
to indicate work is being done on that circuit.
Pg. 14- The installation of electrical supplies and controls must conform to local codes or, in the absence of local
codes, the National Electrical Code and good trade practices.
Pg. 14- Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the local electrical distribution
system.
Pg. 14- When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch
to indicate work is being done on that circuit.
Pg. 24- Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the local electrical distribution
system.
Pg. 24- When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch
to indicate work is being done on that circuit.
Pg. 25- Perform the following checks before placing the machine into service for normal operation.
Pg. 25- Never bypass a safety device in order to operate the dishwasher for normal operation.
Pg. 26- The conveyor drive contains moving parts.
Use caution when working around the conveyor drive assembly.
Pg. 27- Perform the following checks before placing the machine into service for normal operation.
ix
SAFETY SUMMARY
SAFETY SUMMARY (Cont.)
Warning Statements (Cont.)
Pg. 27- Never bypass a safety device in order to operate the dishwasher for normal operation.
Pg. 28- Dishwasher surfaces, dishracks and wares become hot during and immediately after washing operations.
Wear protective gear per your supervisor's directions.
Pg. 29- Dishwasher surfaces, dishracks and wares become hot during and immediately after washing operations.
Wear protective gear per your supervisor's directions.
Pg. 32- Deliming solutions or other acids must not come in contact with household bleach (sodium hypochlorite) or
any chemicals containing chlorine, iodine, bromine, or fluorine.
Mixing will cause hazardous gases to form.
Skin contact with deliming solutions can cause severe irritation and possible chemical burns.
Pg. 32- Consult your chemical supplier for an appropriate deliming solution, protective gear and safety procedures.
Pg. 33- When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch
to indicate work is being done on that circuit.
Pg. 34- When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch
to indicate work is being done on that circuit.
Pg. 35- Do not lubricate the stainless steel conveyor chain or shaft bearings inside the dishwasher wash and power
rinse tanks.
Pg. 36- The conveyor drive contains moving parts.
Use caution when working around the conveyor drive assembly.
Pg. 37- When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch
to indicate work is being done on that circuit
Pg. 40- When repairing a circuit, disconnect the power at the main service disconnect switch and place a red tag at
the disconnect switch to indicate that work is being performed on the circuit.
Pg. 40- Use Extreme Caution when performing tests on energized circuits.
Pg. 40- The conveyor drive contains moving parts. Use caution when working around the conveyor drive assembly.
x
SAFETY SUMMARY
Caution Statements
Pg. 5Pg. 8Pg. 21Pg. 31Pg. 33Pg. 34Pg. 36Pg. 40-
Check piping mounted underneath dishwasher before lifting to avoid damaging the machine.
Check piping mounted underneath dishwasher before lifting to avoid damaging the machine.
Perform the following checks before placing the machine into service.
Do not hose down the exterior of the machine with water.
Only qualified service personnel should perform preventive maintenance on the dishwasher.
Only qualified service personnel should perform preventive maintenance on the dishwasher.
Only qualified service personnel should perform preventive maintenance on the dishwasher.
Only qualified service personnel should perform adjustments and repairs to the dishwasher.
xi
LIMITED WARRANTY
LIMITED WARRANTY
Champion Industries Inc. (herein referred to as Champion), P.O. Box 4149, Winston-Salem, North Carolina 27115,
and P.O. Box 301, 2674 N. Service Road, Jordan Station, Canada, L0R 1S0, warrants machines, and parts, as set out
below.
Warranty of Machines: Champion warrants all new machines of its manufacture bearing the name
"Champion" and installed within the United States and Canada to be free from defects in material and workmanship for a period of one (1) year after the date of installation or fifteen (15) months after the date of shipment by
Champion, whichever occurs first. [See below for special provisions relating to glasswashers.] The warranty
registration card must be returned to Champion within ten (10) days after installation. If warranty card is not
returned to Champion within such period, the warranty will expire after one year from the date of shipment.
Champion will not assume any responsibility for extra costs for installation in any area where there are
jurisdictional problems with local trades or unions.
If a defect in workmanship or material is found to exist within the warranty period, Champion, at its election,
will either repair or replace the defective machine or accept return of the machine for full credit; provided, how
ever, as to glasswashers, Champion's obligation with respect to labor associated with any repairs shall end
(a) 120 days after shipment, or (b) 90 days after installation, whichever occurs first. In the event that Champion
elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular
working hours by a Champion authorized service technician. Defective parts become the property of Champion.
Use of replacement parts not authorized by Champion will relieve Champion of all further liability in connection
with its warranty. In no event will Champion's warranty obligation exceed Champion's charge for the machine.
The following are not covered by Champion's warranty:
a.
b.
c.
d.
e.
f.
g.
h.
i.
Lighting of gas pilots or burners.
Cleaning of gas lines.
Replacement of fuses or resetting of overload breakers.
Adjustment of thermostats.
Adjustment of clutches.
Opening or closing of utility supply valves or switching of electrical supply current.
Cleaning of valves, strainers, screens, nozzles, or spray pipes.
Performance of regular maintenance and cleaning as outlined in operator’s guide.
Damages resulting from water conditions, accidents, alterations, improper use, abuse,
tampering, improper installation, or failure to follow maintenance and operation procedures.
j. Wear on Pulper cutter blocks, pulse vanes, and auger brush.
Examples of the defects not covered by warranty include, but are not limited to: (1) Damage to the exterior or
interior finish as a result of the above, (2) Use with utility service other than that designated on the rating plate,
(3) Improper connection to utility service, (4) Inadequate or excessive water pressure, (5) Corrosion from
chemicals dispensed in excess of recommended concentrations, (6) Failure of electrical components due to
connection of chemical dispensing equipment installed by others, (7) Leaks or damage resulting from such
leaks caused by the installer, including those at machine table connections or by connection of chemical
dispensing equipment installed by others, (8) Failure to comply with local building codes, (9) Damage caused by
labor dispute.
Warranty of Parts: Champion warrants all new machine parts produced or authorized by Champion to be free
from defects in material and workmanship for a period of 90 days from date of invoice. If any defect in
material and workmanship is found to exist within the warranty period Champion will replace the defective
part without charge.
DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. CHAMPION'S WARRANTY
IS ONLY TO THE EXTENT REFLECTED ABOVE. CHAMPION MAKES NO OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF
MERCHANTABILITY, OR FITNESS OF PURPOSE. CHAMPION SHALL NOT BE LIABLE FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE REMEDIES SET OUT ABOVE ARE
THE EXCLUSIVE REMEDIES FOR ANY DEFECTS FOUND TO EXIST IN CHAMPION DISHWASHING
MACHINES AND CHAMPION PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED,
INCLUDING ANY LIABILITY FOR INCIDENTALS OR CONSEQUENTIAL DAMAGES.
Champion does not authorize any other person, including persons who deal in Champion dishwashing
machines to change this warranty or create any other obligation in connection with Champion Dishwashing Machines.
xii
TABLE OF CONTENTS
TABLE OF CONTENTS
Revision Record ..........................................................................................................
v
Safety Summary .......................................................................................................... ix-xi
Limited Warranty ......................................................................................................... xii
PART 1: GENERAL SPECIFICATIONS........................................................
1.1
1.2
1.3
1.4
1.5
1
About this Manual ...............................................................................................
Model Numbers ...................................................................................................
Standard Equipment, Options and Accessories ...................................................
Dimensions, Capacities, Ventilation, and Utilities ...............................................
Electrical Power Requirements ............................................................................
1
1
2
3
4
PART 2: INSTALLATION ..............................................................................
5
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
Unpack the Dishwasher .......................................................................................
Disassembly .........................................................................................................
Reassembly ..........................................................................................................
Permanent Placement ...........................................................................................
Connections between the dishwasher and booster ...............................................
Water Connections ..............................................................................................
Steam and Condensate Connections (Steam heat only) .......................................
Drain Connections ...............................................................................................
Ventilation Connections .......................................................................................
Electrical Connections .........................................................................................
Electrical Tank Heat Connections (Electric heat only) ........................................
Chemical Connections .........................................................................................
5
6
7
8
8
10
10
12
12
13
14
16
PART 3: OPERATION ...................................................................................
19
3.1
3.2
3.3
3.4
3.5
3.6
Theory of Operation .............................................................................................
Description of Operator Controls and Indicators .................................................
3.2.1 Remote Control Cabinet ............................................................................
3.2.2 Dishwasher and Booster ............................................................................
Start-up Procedure ...............................................................................................
Safety and Operation Checks ...............................................................................
Shutdown Procedure ............................................................................................
Operation Summary .............................................................................................
19
20
20
21
23
25
29
30
xiii
TABLE OF CONTENTS
PART 4: CLEANING and MAINTENANCE ...............................................
4.1
4.2
4.3
4.4
4.5
Introduction .......................................................................................................
Daily Cleaning Schedules .................................................................................
Deliming Schedule ............................................................................................
Preventive Maintenance Schedules...................................................................
Lubrication Schedules .......................................................................................
31
31
32
33
35
PART 5: BASIC SERVICE .........................................................................
37
5.1
5.2
5.3
xiv
31
Introduction
General Troubleshooting ...................................................................................
Component Repair and Replacement................................................................
5.3.1 Pressure Reducing Valve (PRV) Adjustment .......................................
5.3.2 Water Line Strainers ............................................................................
5.3.3 Vacuum Breaker Repair .......................................................................
5.3.4 Water Solenoid Valve Repair ...............................................................
5.3.5 Float Switch Replacement ...................................................................
5.3.6 Drain Valve and Overflow Assembly ..................................................
5.3.7 Thermometer Replacement ..................................................................
5.3.8 Tank Heat Thermostat Adjustment and Replacement ..........................
5.3.9 Steam Booster Thermostat Adjustment and Replacement ...................
5.3.10 Steam Solenoid Valve Repair ..............................................................
5.3.11 Steam Trap Repair ...............................................................................
5.3.12 Steam Booster Service .........................................................................
5.3.13 Wash Manifold Restrictor Adjustment.................................................
5.3.14 Pump Seal Replacement ......................................................................
5.3.15 Rinse Saver Assembly Repair ..............................................................
5.3.16 Conveyor Chain Take-up Assembly Adjustment .................................
5.3.17 Take-up Bearing Replacement .............................................................
5.3.18 Drive Shaft Bearing and Seal Replacement .........................................
5.3.19 Door Safety Switch Replacement ........................................................
5.3.20 Control Circuit Explanation .................................................................
5.3.21 Control Cabinet Fuse Replacement .....................................................
5.3.22 Motor Overload Adjustment and Replacement ...................................
5.3.23 Timer Settings ......................................................................................
5.3.24 Control Cabinet Pilot Light Bulb Replacement ...................................
38
40
40
41
41
41
42
42
42
43
43
44
45
45
47
47
48
48
49
49
50
50
54
54
55
55
TABLE OF CONTENTS
PART 6: REPLACEMENT PARTS ................................................................
6.1
6.2
Introduction ..........................................................................................................
Parts Parts Procurement .......................................................................................
57
57
57
111
PART 7: ELECTRICAL SCHEMATICS .........................................................
PART 8: SPECIAL INSERTS ........................................................................
119
LIST OF FIGURES
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
2.1 –
2.2 –
2.3 –
2.4 –
2.5 –
2.6 –
3.1 –
3.2 –
3.3 –
3.4 –
3.5 –
4.1 –
4.2 –
6.1 –
6.2 –
6.3 –
6.4 –
6.5 –
6.5a —
6.6 –
6.6a –
6.7 –
6.8 –
6.9 –
6.9a —
6.9b —
6.10 –
Disassembly ...............................................................................................
Connections Between Dishwasher and Steam Booster ..............................
Utility Connections ....................................................................................
Remote Control Cabinet Tank Heat Connections ......................................
Tank Heater Conduit Routing ....................................................................
Remote Control Cabinet .............................................................................
Operator Controls Remote Control Cabinet ...............................................
Controls and Indicators Dishwasher and Booster ......................................
Conveyor Jam Switch Check .....................................................................
Curtain Placement ......................................................................................
Spray Arm Assembly .................................................................................
Never Lubricate These Points ....................................................................
Conveyor Gearbox and Drive Chain Lubrication ......................................
Vents, Curtains, Doors, Panels, Scrap Screens, and Water Level Gauges .
Tank Fill Assembly and Temperature Gauges............................................
Final Rinse Piping Assembly .....................................................................
Track Assembly ..........................................................................................
Conveyor Shafts, Chains, Bearings, and Guides (Prior to S/N J1050) ......
Conveyor Shafts, Chains, Bearings, and Guides (For S/N J1050 and above)
Conveyor Chain Take-Up Assembly (Prior to S/N J1050) ........................
Conveyor Chain Take-Up Assembly (For S/N J1050 and above) ...................
Conveyor Drive Assembly .........................................................................
Rinse Saver Assembly ................................................................................
Steam Coil Assembly .................................................................................
Electric Tank Heat (For machines with S/N J1050 to JXXXX) ................
Electric Tank Heat (For Machines beginning with S/N JXXXX and above)
Tank Steam Piping with Booster ................................................................
6
9
11
14
15
17
20
21
26
30
30
35
36
58
60
62
66
68
68a
70
70a
72
74
76
76a
76b
78
xv
TABLE OF CONTENTS
LIST OF FIGURES
(CONT.)
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
6.11 –
6.12 –
6.12a—
6.13 –
6.14 –
6.15 –
6.16 –
6.17 –
6.17a —
6.17b—
6.18 –
6.19 —
6.20 —
6.21 —
6.22 —
6.23 —
6.24 —
6.25 —
Tank Steam Piping with Booster ................................................................
Junction Boxes, Float Switches, Door Switches, and Thermostats (Prior to JXXXX) ........
80
82
Junction Boxes, Float Switches, Door Switches, and Thermostats (After JXXXX) ...........
82a
Pump Assembly ..........................................................................................
Wash Spray System (R-L Machine Shown) ...............................................
Drain and Overflow Assembly ...................................................................
Steam Booster and Steam Piping Assembly ..............................................
Steam Remote Control Cabinet (Prior to S/N J1050) ................................
Electric Remote Control Cabinet (For S/N J1050 and above) ...................
Steam or Electric Control Cabinet (For S/N J1080 and above) .................
Dishracks and PRV ....................................................................................
MRAN 90° Guides .....................................................................................
MRAN 90° Pawl Bar .................................................................................
MRAN 90° Table and Drain Assembly ......................................................
MRAN 90° Base Assembly ........................................................................
MRAN 90° Drive and Motor Assembly ....................................................
CH-60 Electric Booster Piping (For USS Ramage Only) ..........................
CH-60 Electric Booster Piping (For USS Ramage Only) ..........................
84
86
88
90
92
92a
92b
94
96
98
100
102
104
106
108
LIST OF TABLES
Table
Table
xvi
3.1 –
3.2 –
Controls and Indicators Remote Control Cabinet ......................................
Controls and Indicators Dishwasher and booster .......................................
20
22
Part 1:
GENERAL SPECIFICATIONS
PART 1: GENERAL SPECIFICATIONS
1.1 About this Manual
All information, illustrations and specifications contained in this manual are based upon the
latest product information available at the time of publication. Champion constantly improves
its products and reserves the right to make changes at any time or to change specifications or
design without notice and without incurring any obligation.
Manual Organization
This manual is divided into seven parts:
♦ Part 1, General Specifications, introduces this manual and the dishwasher in general.
♦ Part 2, Installation, discusses the installation of the dishwasher and describes the
connection of utilities and services.
♦ Part 3, Operation, discusses theory of operation, operator controls, initial start up and
shutdown procedures.
♦ Part 4, Cleaning and Maintenance, discusses lubrication, preventive maintenance,
cleaning and deliming.
♦ Part 5, Basic Service, discusses basic troubleshooting, service procedures, and corrective
maintenance.
♦ Part 6, Replacement Parts, discusses replacement parts procurement and provides parts
diagrams and
parts lists.
♦ Part 7, Electrical Schematics, contains the dishwasher electrical schematic.
1.2 Model Numbers
USN-72
The USN-72 series is a two-tank, high temperature (180°F/82°C rinse), sanitizing rack
conveyor dishwasher. This model features electric or steam heat and external booster.
The USN-72 is available in either right to left or left to right conveyor operation.
The USN-72 comes in the following models:
250-USN-72:
250 racks /hour
185-USN-72:
185 racks /hour
135-USN-72:
135 racks /hour
85-USN-72:
85 racks /hour
60-USN-72:
60 racks /hour
1
Part 1:
GENERAL SPECIFICATIONS
1.3 Standard Equipment
♦
♦
♦
♦
♦
♦
♦
♦
Modular construction for easy installation
Deep tank design to withstand 15° list without water slosh
Heavy duty dual chain drive with rear lugs
Lift-out doors
Open construction without panels for easy service and cleaning
Exhaust vent extended to table level on each end
All 304 stainless steel construction
Flanged feet for deck mounting
♦
♦
♦
♦
♦
Interchangeable upper and lower spray arms
2 HP drip proof pump/motor assemblies
1/4 HP conveyor drive motor
Make up water with constant flow during operation
Dishwasher shutdown below 180°F final rinse temperature via thermal switch
♦ Manual fill for wash/rinse tank with water level sight gauges
♦ Manual Ball valve drain in each tank plumbed to a common connection
♦ Steam piping without threaded joints in tanks
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
Remote mounted NEMA 4X control cabinet
Common utility connections
440/60/3 power supply
120VAC control circuit
Steam coil or electric tank heat
Detergent/Chemical connection provisions
Float switch low water heat protection with 5 second delay
Door safety switches
Conveyor jam limit switch
Easily removable scrap screens
Rinse saver device for water conservation
Dishracks (peg rack and flat bottom rack)
Options and Accessories
♦ External steam booster heater 40° or 70° rise (specified at time of order)
♦ External electric booster heater 40° or 70° rise (specified at time of order)
(stainless steel, completely interplumbed and interwired)
♦ Right to left or left to right conveyor operation (specified at time of order)
♦ Choice of conveyor speed (250, 185, 135, 85, or 60 racks per hour)
♦
♦
♦
♦
2
(specified at time of order)
Power unloader
90° motorized rack advance conveyor (specify load or unload)
Dishracks - dish or open (specify type)
Table limit switch, unmounted (recommended on all conveyor installations)
Part 1:
GENERAL SPECIFICATIONS
1.4 Dimensions, Capacities, Ventilation, and Utilities
Dimensions
Capacities
Height
Width
Length
Wash tank
Rinse tank
Final rinse flow
Wash make up
Total water usage
56.188 inches (w/o piping)
25.0 inches
72.0 inches (w/o vents)
Volume crated
Shipping weight crated
Weight uncrated
125 cu. ft.
1000 lbs.
850 lbs.
22.0 gallons
22.0 gallons
300.0 gal/hr @ 20 psig
60.0 gal/hr @ 20 psig
360.0 gal/hr
Rack Capacity
and Conveyor Speed
Based on standard 20" X 20"
dishracks manually loaded
Rack Capacity Conveyor Speed
(racks/hr)
(ft/min.)
Ventilation (Minimum)
60
1.67
Load end
200 CFM @ 1/4"S.P
85
2.36
Unload end
400 CFM @ 1/4"S.P.
135
3.75
185
5.14
250
6.94
Utilities
Hot water:
3/4" NPT 140°F hot water connection @ 20-22 psig flow pressure
Drain:
1-1/2" NPT drain connection @ 15 gal/min maximum flow rate.
Electric:
440/60/3
Steam:
1-1/2" NPT steam connection (for machine and booster) @ 15-30 psig flow pres.
Tank heat consumption
150 lbs./hr.
70°R Steam booster consumption
255 lbs./hr.
Condensate: 3/4" NPT machine return to boiler (no back pressure)
3
Part 1:
GENERAL SPECIFICATIONS
1.5 Electrical Power Requirements
1.5.1 Power Requirements for Steam Heat
Machine Full Load Amps 6.9A
Operating Currents (440V/60/3 Supply)
Steam Heated
Wash motor
2.7 Amps
Rinse motor
2.7 Amps
Drive motor
0.4 Amps
Control Circuit
1.1 Amps
Circuit
Voltage
Booster Rise
Hz/Ph
(Steam)
Motor/Control
440/60/3
Machine
Full Load Amps
70°
6.9 Amps
Power Requirement
(125% Service Factor)
9.0 Amps
1.5.2 Power Requirements for Electric Heat
Machine Full Load Amps 6.9A
Operating Currents (440V/60/3 Supply)
Wash motor
2.7 Amps
Rinse motor
2.7 Amps
Drive motor
0.4 Amps
Control Circuit
1.1 Amps
Each heat circuit has a separate power source.
Heat
Circuit
Voltage
Hz/Ph
KW
(Electric)
Amps
Full Load
Power Requirement
(125% Service Factor)
Wash
tank heat
440/60/3
20KW
27 Amps
33 Amps
Power Rinse
tank heat
440/60/3
30KW
40 Amps
50 Amps
440/60/3
37.8KW
49.6 Amps
62 Amps
440/60/3
440/60/3
32.8KW
32.8KW
43 Amps
43 Amps
53.8 Amps
53.8 Amps
Final Rinse
Booster (40°rise)
(One cannister)
Final Rinse
Booster (70°rise)
(Two cannisters)
Cannister 1
Cannister 2
Total KW for 70°rise is 65.6 KW
4
Part 2:
INSTALLATION
PART 2: INSTALLATION
In This Part—
• Unpacking the dishwasher
• Disassembling the dishwasher to move through hatches
• Making Utility Connections
2.1 Unpack the Dishwasher
NOTE:
The installation of your dishwasher must meet all applicable
health and safety codes and conform to good trade practice.
Your USN-72 was completely assembled, inspected, and thoroughly tested at our factory
before shipment to your installation site.
• The dishwasher with vents and booster are shipped on a single pallet.
• The booster is disconnected from the dishwasher.
• The remote mounted control cabinet is shipped in a separate carton.
Perform the following steps to unpack the dishwasher:
1. Remove protective wrap and hold-downs from the pallet.
2. Inspect for any shipping damage. If damage is found, save the packing material
and contact the carrier immediately.
3. Check the interior of the dishwasher for the following items stowed inside:
- 1 set of flanged feet
- 1 set of dishracks
- Warranty information packet
!
CAUTION:
Check piping mounted underneath dishwasher before lifting, to avoid damaging the
machine.
4. Remove the dishwasher from the skid.
NOTE:
If you need to move the dishwasher through shipboard hatches, refer to Part 2.2,
Disassembly, on the next page.
5. Move the dishwasher to its permanent location if no disassembly is
required. Refer to Part 2.4, Permanent Placement.
5
Part 2:
INSTALLATION
2.2 Disassembly
The USN-72 will require partial disassembly to move it through a standard 26" x 66" hatch.
Go to Part 2.4, Permanent Placement, if disassembly is not required.
Perform the following steps to disassemble the dishwasher. Refer to Fig. 2.1 below.
1. Remove (7) 1/4-20 nuts and washers from each vent collar assembly.
Pull the vent collars off the machine.
2. Disconnect the union in the upper final rinse piping assembly.
3. Disconnect the union in the wash water makeup line.
Remove the upper final rinse piping assembly and the makeup line.
4. Inspect the fill piping on the top of the tanks
5. Remove (1) 1/2" locknut located inside the machine from each vertical fill pipe.
Remove the upper fill pipe assemblies.
6. Turn the conveyor chain tension adjusters until the conveyor chain is slack.
7. Locate the master links in the conveyor chain and remove.
Disconnect the chains and pull them to the chain adjuster in the wash tank.
8. Remove 1/4-20 hardware and U-clip protecting the inside tank joint.
9. Remove hardware securing outside front tank flange.
10. Remove the hardware joining the tank bases.
11. Disconnect the 1-1/2" drain line union underneath the dishwasher.
12. Disconnect the 1/2" steam condensate union.
4
13. Disconnect the 3/4" tank steam supply union
between the wash and rinse tanks.
3
14. Disconnect and mark the wiring and
conduit between the tanks.
15. Pull the wash and
rinse tanks apart.
5
16. Move the dishwasher 2
to its permanent
location.
17. Refer to Part 2.3,
6
Reassembly.
1
7
8
9
11
14
12
13
10
Figure 2.1
Disassembly
6
Part 2:
INSTALLATION
2.3 Reassembly
Special Tools and Materials Required—
• Bubble level (3 ft.)
• Silicone sealant, (1) 12 fl. ounce tube, Dow Corning® RTV or comparable
• Plumber's sealing putty (Champion P/N 104889) or comparable
• Pipe thread sealant, Loctite® 565 or comparable
If you disassembled your dishwasher to move it through hatches as described in Part 2.2, then
follow the instructions in this part to reassemble your dishwasher. Go to Part 2.4, Permanent
Placement, if disassembly was not required for your dishwasher.
Perform the following steps to reassemble the dishwasher prior to permanent placement.
Refer to Fig. 2.1 on the preceding page.
1. Before moving the sections into position, inspect the location site to ensure the electrical,
plumbing, and ventilation services are provided in the correct locations. Compare the site
connections with the dishwasher to ensure they will match when the machine is set in its
permanent location.
2. Move the wash and rinse tanks in close proximity to each other in the direction
they will be installed.
3. Apply a 1/2" bead of silicone sealant on the face of all sides of the wash tank hood gasket.
4. Move the rinse tank closer to the wash tank and check the alignment of the bolt holes at the base
and around the tank hood.
5. Adjust the rinse tank adjustable legs to align the bolt holes.
6. BOLT THE HOOD SECTIONS FIRST.
Make sure the U-clip removed in Step 8, Part 2.2 is installed.
Start the bolts and tighten nuts hand tight.
7. Check the alignment of the 1-1/2" drain union underneath the machine. Adjust tanks as required.
8. Start the bolts and hand tighten the nuts to join the bases.
9. Connect the 1-1/2" drain union.
10. Tighten all bolts securely using a cross pattern to pull the tanks together evenly.
11. Reconnect the wiring and plumbing. Refer to Steps 12-14, Part 2.2 and Fig 2.1.
12. Pull the conveyor drive chains stored in the wash tank back to the rinse tank. Make sure
the drive chain with the dishrack lugs is positioned on the rear track. See Item 7, Fig.2.1.
13. Replace the drive chain master links and tighten the chain adjusters evenly. Proper chain tension
is achieved when the chain can be lifted off the track a maximum of 1-1/2".
14. Reinstall remaining plumbing using plumber's putty or thread sealant where required.
Refer to Steps 2-5, Part 2.2 and Fig.2.1
15. Position dishwasher in its permanent location.
16. Lift the dishwasher and replace the adjustable legs with the flanged mounting feet provided.
17. Level the dishwasher front to back and side to side by turning the adjustable feet.
Make sure the load and unload openings align with the table system height.
18. Reinstall the vent collars.
19. Go to Part 2.4, Permanent Placement.
7
Part 2:
INSTALLATION
2.4 Permanent Placement
Refer to Part 2.2, Disassembly and Part 2.3, Reassembly if your dishwasher requires transport through
ship hatches, otherwise proceed with the instructions listed below.
Perform the following steps to place the dishwasher in its permanent location.
1. Before moving the sections into position, inspect the location site to ensure the electrical,
plumbing, and ventilation services are provided in the correct locations. Compare the site
connections with the dishwasher to ensure they will match when the machine is set in its
permanent location.
!
CAUTION:
Check piping mounted underneath dishwasher before lifting, to avoid damaging the machine.
2. Lift the dishwasher and replace the adjustable legs with the flanged mounting feet provided.
3. Position dishwasher in its permanent location.
4. Level the dishwasher front to back and side to side by turning the adjustable feet.
Make sure the load and unload openings align with the table system height.
5. Position the external booster heater at the unload end of the dishwasher.
Check alignment of common plumbing connections between booster and dishwasher.
6. Install deck plates, and bolt dishwasher and booster to deck per standard procedures.
2.5 Connections between the dishwasher and booster
Refer to Figure 2.2 on the next page.
WARNING:
The installation of this unit must conform to local codes or, in the absence of local codes,
to the National Electrical Code and all National Codes governing plumbing, sanitation,
safety and good trade practices.
Connect the plumbing and electrical connections between the dishwasher and booster heater.
1. Connect the 1/2" condensate union from the dishwasher to the booster. (See No. 1, Fig. 2.2).
2. Connect the 3/4" steam union from the dishwasher to the booster. (See No. 2, Fig. 2.2).
3. Connect the 3/4" water line from the booster to the top of the dishwasher at the
vacuum breaker. (See No. 3, Fig. 2.2).
4. Pull the electrical conduit and harness from the junction box located on the lower
rear corner of the dishwasher to the booster junction box located on the lower left rear leg
of the booster stand. (See No. 1, Fig. 2.2).
5. Match the harness wire numbers to the booster junction box wiring.
8
INSTALLATION
(Conduit/
(1/2" condensate
union)
1
2
(3/4" water
line)
3
4 Harness)
(3/4" steam union)
a
Ch
ion
p
m
a
Ch
ion
p
m
Part 2:
Figure 2.2
Connections Between
Dishwasher and Steam Booster
(Right to left model shown)
9
Part 2:
INSTALLATION
2.6 Water Connections
Perform the following steps to connect the water supply
Refer to Figure 2.3 on the next page.
WARNING:
The installation of water supplies must conform to local codes or, in the absence of local code,
all National Codes governing plumbing, sanitation, safety and good trade practices.
1. Connect a 3/4" NPT hot water supply line (110°F minimum) to the water inlet valve located
at the booster. (See No. 1, Fig. 2.3.)
2. Connect a 1/2" NPT hot water line (140°F minimum) to the water inlet valve located at the
top of the dishwasher. (See No. 2, Fig. 2.3.)
2.7 Steam and Condensate Connections (Steam heat only)
Perform the following steps to connect the steam supply and condensate return.
Refer to Figure 2.3 on the next page.
WARNING:
The installation of steam supplies must conform to local codes or, in the absence of local code,
all National Codes governing plumbing, sanitation, safety and good trade practices.
NOTE:
A manual shut-off valve for steam (supplied by others) should be installed in the supply lines
to allow for servicing of the machine. The shut-off valve should be the same size or larger
than the supply line.
1. Connect a 1-1/2" NPT steam supply line to the line strainer located at the booster.
(See No. 3, Fig 2.3)
2. Connect a 1" NPT steam condensate line to the tee fitting located at the booster.
Condensate must be gravity return to the boiler or to a pumping trap.
(See No. 4, Fig. 2.3)
10
Part 2:
INSTALLATION
Utility Connection Points
No.
1
2
3
4
5
6
7
7A
8
9
10
Description
3/4" NPT hot water supply line for booster
1/2" NPT hot water supply line for dishwasher
1/2" NPT steam supply line
1/2" NPT steam condensate line
1-1/2" NPT drain line
1/2" NPT vent collar drain line
Dishwasher main electrical junction box prior
to S/N JXXXX
Wash/Rinse tank electrical junction box after
S/N JXXXX
11.13" x 3.87" vent collar connection
1/4" rinse aid injection point
Detergent injection point
8
2
n
o
i
mp
9
a
Ch
6
n
o
i
mp
a
Ch
7A
7
7A
5
10
3
5
4
1
Figure 2.3
Utility Connections
(Right to left model shown)
11
Part 2:
INSTALLATION
2.8 Drain Connections
Perform the following steps to connect the drain lines.
Refer to Figure 2.3 on the preceding page.
WARNING:
The installation of drains must conform to local codes or, in the absence of local code,
all National Codes governing plumbing, sanitation, safety and good trade practices.
1. Connect a 1-1/2" NPT drain line to the dishwasher. The machine drain is a level line so
connection can be made on either end by relocating the drain plug.
The drain line is located underneath the dishwasher. (See No. 5, Fig. 2.3, page 11.)
2. Connect 1/2" NPT drain lines to the load and unload vent collars, (2) connections per collar.
(See No. 6, Fig. 2.3, page 11.)
2.9 Ventilation Connections
Perform the following steps to connect the ventilation system
Refer to Figure 2.3 on the preceding page.
WARNING:
The installation of ventilation must conform to local codes or, in the absence of local code,
all National Codes governing plumbing, sanitation, safety and good trade practices.
1. Connect an exhaust duct to the load and unload vent collar located at each end of the dishwasher.
Inside dimensions of the vent collar connection are 11.13" x 3.87".
(See No. 8, Fig. 2.3, page 11).
2. The minimum vent capacities are given below:
Load end
200 CFM @ 1/4"S.P (minimum)
Unload end
400 CFM @ 1/4"S.P. (minimum)
12
Part 2:
INSTALLATION
2.10 Electrical Connections
Perform the following steps to connect the electrical supply.
Refer to Figure 2.3, page 11 and Figure 2.6, page 17.
WARNING:
The installation of electrical supplies and controls must conform to local codes or, in the
absence of local codes, the National Electrical Code and good trade practices.
WARNING:
Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the
local electrical distribution system.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at the
disconnect switch to indicate work is being done on that circuit.
1. A qualified electrician must compare the electrical power supply with the machine electrical
specifications stamped on the MACHINE ELECTRICAL CONNECTION PLATE located
inside the remote control cabinet (see No. 1, Fig 2.6, page 17) before connecting to the
incoming service through a fused disconnect switch.
2. Refer to Figure 2.3, No. 7 and 7A (depending on serial number), on page 11. No. 7 indicates the
location of the wash tank junction box for the right to left machine. The box is located on the
opposite end of the dishwasher for a left to right machine. No. 7A indicates the location of the
wash and rinse tank junction box.
NOTE:
Mounting hardware, conduit, and electrical wiring to connect the remote control cabinet
to the local electrical distribution system are supplied by others. Hardware, conduit, and
electrical wiring to connect the remote control cabinet to the dishwasher are supplied
by others.
3. Install the dishwasher remote control cabinet on a bulkhead adjacent to the dishwasher.
Controls must be easily accessible to the operator.
Refer to Figure 2.6 on page 17.
4. Install the power supply wires from the local distribution panel to the remote control cabinet
at the incoming power terminal block. (See No. 2, Fig. 2.6.)
5. For serial numbers prior to J1871, install the power and control wiring between the remote
control cabinet and the main electrical junction box located on the front of the dishwasher. Wire
numbers are marked on the main terminal board in the remote control cabinet. (See No. 3, Fig. 2.6
page 17.). Terminal board wire numbers correspond to wires marked in the dishwasher main
junction box. Match wire numbers and connect.
For Serial numbers after J1872 install the power for the motors and control wiring between the
remote control cabinet and the electrical junction boxes located on the front of the dishwasher.
Wire numbers are marked on the main terminal strip in the remote control cabinet (see the Interconnection Diagrams in the back of manual). Terminal strip wire numbers correspond to wires
marked on the terminal strips in the wash and rinse tank junction boxes. Match wire numbers and
connect.
6. Refer to Part 3.3, Start-up Procedure, to test the installation.
13
Part 2:
INSTALLATION
2.11Electrical Tank Heat Connections (Electric heat only)
Perform the following steps to connect the incoming electrical power to the tank heat circuits
in the remote control cabinet.
Refer to Fig. 2.4 below, and Fig. 2.5, page 15.
WARNING:
The installation of electrical supplies and controls must conform to local codes or, in the
absence of local codes, the National Electrical Code and good trade practices.
WARNING:
Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the
local electrical distribution system.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at the
disconnect switch to indicate work is being done on that circuit.
1. Connect the incoming 440V/60/3PH power supply to the heat contactor marked for the
wash tank heater circuit. Refer to Part 1.5, Electrical Power Requirements, page 4,
for full load amp ratings.
2. Connect the incoming 440V/60/3PH power supply to the heat contactor marked for the
wash tank heater circuit. Refer to Part 1.5, Electrical Power Requirements, page 4,
for full load amp ratings.
3. Item A, Figure 2.5, page 15,
illustrates the incoming power
connections to the remote
control cabinet. Connections
are shown entering the top of
the cabinet, but the installer
may choose to route connections
to a different location if necessary.
4. Items B and C, Figure 2.5,
MACHINE ELECTRICAL
page 15, illustrate the conduit
CONNECTION PLATE
routing from the remote control
cabinet to the tank heater junction
boxes located on the front of the
1
dishwasher.
5. Beginning with serial number
J1872, connect the tank heater
to the terminal block as shown in
in the Interconnection Drawings
2
located on page xxx in the back of
the manual.
POWER
TERMINAL BLOCK
CONTROL
TRANSFORMER
14
MOTOR OVERLOADS
POWER RINSE
TANK
HEAT CIRCUIT
1M
2M
120V
120V
DRIVE
WASH
Figure 2.4
Remote Control Cabinet
Incoming Power Connections
for Tank Heat Circuit
WASH TANK
HEAT CIRCUIT
3MOL
RINSE
2MOL
WASH
1MOL
DRIVE
GROUND
Part 2:
INSTALLATION
A
ng
omi
ote inet
Rem ol Cab
tr
Con
wer
Po
Inc
orion
t
p
m oS
Pri
a
Ch
ion
p
m
a
Ch
Pri
or
Af
ter
S/
N
to
S/N
J1
87
1
)
8712)
1
J
r 7
Prioter J18
(
y
f
ewa (A
Wir n Box
ctio
rs
Jun
eate
H
k
Tan
/N
J1
87
1
)
871 2)
1
J
7
r
B
Priofter J18
(
y
a
A
ew (
Wiron Box
cti
Jun
rs
2
eate
H
187
k
J
n
N
a
T
r S/
Afte
C
J1
87
2
Figure 2.5
Tank Heater Conduit Routing
(Right to left model shown)
15
Part 2:
INSTALLATION
2.12 Chemical Connections
Perform the following steps to connect the chemical dispensing equipment (if machine is
purchased with this feature).
Refer to Figure 2.3, page 11, and Figure 2.6, page 17.
WARNING:
The installation of electrical supplies and controls must conform to local codes or, in the
absence of local codes, the National Electrical Code and good trade practices.
WARNING:
Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the
local electrical distribution system.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at the
disconnect switch to indicate work is being done on that circuit.
1. Chemical dispensing signal connection points are provided on the main terminal board in the remote
control cabinet. (See No. 4, Fig. 2.6, page 17.) Beginning with serial number J1872, these same
connection points are also located in the wash tank junction box (No. 7 A, Fig 2.6 page 11). Either
connection location can be used. A yellow label indicates the connection points.
2. The detergent signal is limited to a maximum load of 1 Amp. Signal voltage is 120VAC.
3. The rinse aid signal is limited to a maximum load of 1 Amp. Signal voltage is 120VAC.
4. Sanitizer is not required for the USN-72 dishwasher.
5. The rinse aid injection point is located in the upper final rinse piping of the dishwasher.
(See No. 9, Fig. 2.3, page 11.)
6. The chemical equipment installer must cut a hole in the wash tank for a detergent
sensor and a detergent injection point. (See No. 10, Fig. 2.3, page 11.)
16
Part 2:
INSTALLATION
2
POWER
TERMINAL BLOCK
CONTROL
TRANSFORMER
GROUND
120V
120V
120V
120V
4
TIMERS
RT
SIGNAL ONLY
120V
RINSE AID/
SANI
COMMON
WT
MOTOR OVERLOADS
1MOL
2MOL
3MOL
DRIVE
WASH
RINSE
MAIN TERMINAL BOARD
CONTROL RELAYS
120V
4120V
3
120V
MOTOR CONTACTORS
1M
2M
1
3M
DRIVE
RINSE
WASH
FU1
FU2
CB
CONTROL CIRCUIT
FUSES
BREAKER
120V
MACHINE ELECTRICAL
CONNECTION PLATE
DETERGENT
120V
Figure 2.6
Remote Control Cabinet
(Interior View)
17
THIS PAGE
INTENTIONALLY
LEFT BLANK
18
Part 3:
OPERATION
PART 3: OPERATION
In This Part—
• Theory of operation
• Description of operator controls
• Start up procedure
• Safety and operation checks
• Shutdown procedure
• Operation summary
3.1 Theory of Operation
Dishwashing requires five components to be effective: time, temperature, mechanical
action, chemical action and proper procedure. Time allows everything to work. Temperature
produced by the heat system is required to heat water in order to penetrate and loosen food soils.
Mechanical action produced by the pump system creates water pressure to flush food soils from
wares. Chemical action in the form of detergents break down grease and dissolve food particles.
Proper procedures in the form of prescrapping, prerinsing, and proper loading maximize
dishwasher performance.
The USN-72 series dishwasher consists of the wash tank and the power rinse tank. The power
rinse tank contains the final rinse piping. Each tank is equipped with its own spray system and a
water holding tank. Recirculating pumps draw water from the tanks and direct the water under
pressure through the spray system and onto the dishes.
Wash and power rinse water is heated in the tanks by a steam coil or electric tank heater.
The final rinse water for sanitizing is heated in an external steam or electric booster heater.
A rack conveyor system made up of dual chains and driven by a conveyor motor and gearbox
moves dishracks loaded with wares through the tanks. The wash tank water, which is heated to a
minimum of 150°F., contains detergents. Wares are conveyed to the wash tank where they are
sprayed with the detergent solution. Food particles and other soils are flushed from the wares and
are collected in scrap screens above the water holding tank. Wares continue on the conveyor
system to the power rinse tank which is heated to a minimum of 160°F. The power rinse tank
spray system rinses remaining soils and soapy water from the wares.
The final stage of the washing operation occurs in the final rinse section. Upper and lower final
rinse spray pipes are located at the exit end of the dishwasher. As the dishrack containing wares
approaches the final rinse area, the dishrack operates a final rinse switch. The switch activates
the final rinse system. Final rinse water, heated to a minimum of 180°F., is forced by water line
pressure from the final rinse booster heater. Water sprays from the upper and lower final rinse
piping on the wares to sanitize them. The wares are conveyed out the exit end of the dishwasher
where operators remove and stack the wares for the next meal period.
The USN-72 is equipped with several safety features. Door safety switches prevent the unit
from running if a door is open. A conveyor limit switch stops the dishwasher operation if the
conveyor becomes jammed. A float switch located in each tank stops the unit if the water level
falls below a preset level. Finally, a low temperature sensor stops machine operation if the final
rinse water falls below 180°F.
19
Part 3:
OPERATION
3.2 Description of Operator Controls and Indicators
3.2.1 Remote Control Cabinet
Refer to Figure 3.1 and Table 3.1 below for the location and function of the operator controls and indicators on the remote control cabinet.
2
OFF ON
POWER ON
START
STOP
1
4
CONTROL
TYPE
FUNCTION
1 ON/OFF Switch Selector
Controls power to the
dishwasher.
Connects power to
tank and booster
heat circuits, pump
contactors, and drive
contactor.
2 Power ON light
Red pilot
Signals control power
connected to unit if
ON/OFF selector ON.
3 Start switch
Green
Pushbutton
Starts pumps and
conveyor motors.
4 Stop switch
Red
pushbutton
Stops pumps and
conveyor motors.
3
BOOSTER
LOW TEMP
6
5
Figure 3.1
Operator Controls
Remote Control Cabinet
(Front Exterior View)
5 Booster low
Red pilot
temperature light light
6 Final rinse water Green
prime button
Table 3.1
Controls and Indicators
Remote Control Cabinet
20
pushbutton
Indicates final rinse
temperature has
fallen below 180°F.
Dishwasher stops.
Prime final rinse water
temperature to reach
180°F and above when
the above function has
indicated booster low
temperature.
Part 3:
OPERATION
3.2.2 Dishwasher and Booster
Refer to Figure 3.2 below and Table 3.2, page 22 for the location and function of the dishwasher
and steam booster operator controls and indicators.
2
5
6
7
3
ion
p
m
5
a
Ch
9
ion
p
m
a
Ch
After S/N J1872
4
Prior to
S/N J1871
8
1
Figure 3.2
Controls and Indicators
Dishwasher and Booster
(Right to left w/steam booster shown)
21
Part 3:
OPERATION
3.2 Description of Operator Controls and Indicators (Cont.)
CONTROL
1 Inlet water
supply valve
2 Inlet water
supply valve
3 Inlet water
supply valves
4 Water level
TYPE
Ball valve
(shown closed)
Connects incoming water supply
for the booster.
Ball valve
(shown open)
Connects incoming water supply for
the tank fills.
Ball valves
(shown closed)
Controls manual fill to wash tank.
Controls manual fill to rinse tank.
Sight glass
Indicates water level in wash and
rinse tank. Water line visible in
center of glass indicates correct
water level in tank.
Scaled
thermometer
dial
Indicates water temperature in
wash and rinse tanks.
Wash = 150°F minimum.
Rinse = 160°F minimum.
gauges
5 Tank water
temperature
gauges
6 Final rinse
0-60 PSI
pressure gauge gauge
7 Final rinse
FUNCTION
Indicates final rinse water pressure
during the final rinse.
20-22 PSIG minimum flow pressure.
Scaled
thermometer
dial
Indicates final rinse temperature
during the final rinse.
180-195°F optimum range.
8 Drain valves
Ball valves
(shown closed)
Controls draining of wash and rinse
tanks.
9 Operation
Placard
Complete operation quide to
machine (located on load end
of machine on front panel under
wash gauge next to wash door)
temperature
gauge
guide
Table 3.2
Controls and Indicators
Dishwasher and Booster
22
Part 3:
OPERATION
3.3 Start-Up Procedure
Perform the following steps to start up the dishwasher for first-time operation.
!
CAUTION:
Perform the following checks before placing the machine into service.
1. Check the exterior of the machine for any foreign material, and remove.
NOTE:
To remove the dishwasher lift-out doors:
Grasp the handles and lift approximately 4".
Tilt the top of the door toward you and out of the door track.
2. Remove the lift-out doors.
3. Check the interior of the machine and remove any foreign material.
NOTE:
To install the upper and lower spray pipes:
Insert the pipe into its locking plate and turn 1/4 turn clockwise.
Each pipe has an o-ring on the end of its manifold.
4. Make sure the upper and lower spray arms are secure in the manifold
and all end plugs are in place.
5. Remove the scrap screens and make sure all overflow covers are down
and the pump intake screens are in place.
6. Replace the scrap screens.
NOTE:
Dishwasher curtains have long and short flaps.
Be sure the short flaps of all curtains face the load end of the machine.
Place long curtains at the load and unload ends of the dishwasher.
Place the short curtain at the end of the wash tank in the center of the dishwasher.
7.
8.
9.
10.
11.
Make sure the curtains are in place.
Reinstall the lift-out doors.
Check the chemical injection system (if applicable).
Close the tank drain valves along the lower front of the machine.
Open the water supply valves. Check for leaks and take corrective action if required.
23
Part 3: OPERATION
12. Open the steam supply valves (if applicable).
Check for leaks and take corrective action if required.
13. Open the manual tank fill valves on the top of dishwasher to fill the tanks.
14. Monitor the water level gauges.
Tanks are full when the water line reaches the center of the gauges.
15. Close the manual fill valves and check the dishwasher for leaks.
16. Turn the main power on at the breaker panel or fused disconnect switch
for the dishwasher.
17. Turn the main power on at the breaker panel or fused disconnect switch
for the electric booster heater (if applicable).
18. Turn the power selector switch on the front of the remote control cabinet to the “ON”
position. The red power-on light will illuminate.
NOTE:
Allow sufficient time for the tanks to reach proper temperatures (approx. 20 minutes):
Wash tank temperature = 150°F. minimum.
Power rinse tank temperature = 160°F. minimum.
19. Monitor the tank thermometers located on the top of the dishwasher
for the proper temperature reading.
20. Press the GREEN start button on the front of the remote control cabinet.
Pumps and conveyor start.
21. Check the direction of rotation of the conveyor drive.
Conveyor drive sprocket (located behind stainless steel cover on unload end) turns
CCW for right to left operation, CW for left to right operation.
22. Check the direction of rotation of the pump motors.
Proper rotation is CW when viewing the motor from the rear.
WARNING:
Dangerous voltages are present at the local electrical distribution system.
Dangerous voltages are present at the dishwasher when it is connected to the
local electrical distribution system.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at
the disconnect switch to indicate work is being done on that circuit.
23. If the rotation direction is incorrect, reverse wires L1 and L2 on the disconnect switch side
of the main electrical connection terminal block located inside the remote control cabinet.
24. Press the RED stop button. The red power light goes out, and the pumps and conveyor
stop. Press the GREEN start button. The red light comes on; the pumps and conveyor run.
25. Proceed to Part 3.4, Safety and Operation Checks, on next page.
24
Part 3:
OPERATION
3.4 Safety and Operation Checks
Refer to Part 3.3, Start-up Procedure, on the previous page before performing the
steps listed below.
Perform the following steps to check the dishwasher safety devices and to
operate the dishwasher for the first time.
Safety Checks
WARNING:
Perform the following checks before placing the machine into service
for normal operation.
WARNING:
Never bypass a safety device in order to operate the dishwasher for normal operation.
NOTE:
Refer to the corresponding repair or adjustment procedure in Part 5, Basic Service,
if a safety device fails to function in the manner prescribed below.
Dishwasher Condition
The dishwasher is full of water, steam or electric heat energized, and dishwasher power is on.
Temperature gauges indicate proper temperatures. The pumps and conveyor are running.
Door Safety Switch Check
1. Slowly raise the wash tank lift-out door approximately 1 inch.
Dishwasher pumps and conveyor stop.
2. Lower wash tank door. Press green start button.
Pumps and conveyor run.
3. Slowly raise the power rinse tank lift-out door approximately 1 inch.
Dishwasher pumps and conveyor stop.
4. Lower power rinse tank door. Press green start button.
Pumps and conveyor run.
Table Limit Switch Check (if applicable)
1. Slide empty dishrack on unload table system until it contacts the installed table limit switch.
Dishwasher pumps and conveyor stop.
2. Remove the dishrack. Press green start button.
Pumps and conveyor run.
25
Part 3:
OPERATION
Low Water Tank Heat Protection Check
1. Open the drain valve on the wash tank.
2. Pumps and conveyor stop when the water level falls below the level of the
wash tank float switch.
3. Close the drain valve.
4. Open the manual fill valve and refill the wash tank.
5. Push the green start button on the control cabinet.
Pumps and conveyor run.
6. Repeat Steps 1-5 for the power rinse tank.
Conveyor Jam Switch Check
Refer to Figure 3.3 below
WARNING:
The conveyor drive contains moving parts.
Use caution when working around the conveyor drive assembly.
1. Using a hydraulic jack or lever,raise the conveyor drive table (A) approximately
2 inches to simulate a jam condition.
2. The conveyor jam switch (B) operates.
3. Pumps and conveyor stop.
4. Lower the conveyor drive table.
5. Push the green start button on the control cabinet.
Pumps and conveyor run.
A
B
Figure 3.3
Conveyor Jam Switch Check
(Right to left model shown)
26
Part 3:
OPERATION
3.4 Safety and Operation Checks (Cont.)
Perform the following steps to check the dishwasher safety devices and to operate
the dishwasher for the first time.
Safety Checks (Cont.)
WARNING:
Perform the following checks before placing the machine into service
for normal operation.
WARNING:
Never bypass a safety device in order to operate the dishwasher for normal operation.
NOTE:
Refer to the corresponding repair or adjustment procedure in Part 5, Basic Service,
if a safety device fails to function in the manner prescribed below.
Dishwasher Condition
The dishwasher is full of water, steam or electric heat energized, and dishwasher power is on.
Temperature gauges indicate proper temperatures. The pumps and conveyor are running.
Booster Low Temperature Check
1. Insert several racks into the machine to operate the final rinse.
2. Monitor the final rinse temperature gauge located on the top of the dishwasher
in the upper final rinse piping. Minimum temperature required is 180°F.
3. Close the steam supply valve to the dishwasher so the booster will not heat
the final rinse water.
4. Continue to feed racks into the machine.
5. When the final rinse water temperature at the booster falls below 180°F. the
pumps and conveyor stop.
6. The booster low temperature light on the remote control cabinet illuminates.
7. Open the steam supply valve to the dishwasher.
8. PUSH and HOLD the green start button until the booster low temp light
goes out.
9. Release the green start button.
10. Pumps and conveyor continue to run.
27
Part 3:
OPERATION
Operation Checks
Refer to Part 3.3, Start-up Procedure, on pages 20-21 before performing the
steps listed below.
Perform the following steps to check the dishwasher operation for the first time.
Operation Checks
Dishwasher Condition
The dishwasher is full of water, steam or electric heat energized, and dishwasher power is on.
Temperature gauges indicate proper temperatures. The pumps and conveyor are running.
1. Prescrap and prerinse wares to remove large food particles.
Hard baked-on soils may require soaking or scrubbing.
2. Load a dishrack with soiled wares.
Place dishes edgewise in a peg rack.
Place cups and bowls upside down in a flat bottom rack.
Spread silverware evenly in a single layer in a flat bottom rack.
3. Do not overload dishracks.
4. Slide the rack into the load end of the dishwasher.
The conveyor advances the rack through the dishwasher.
5. Monitor the wash temperature gauges.
Wash tank temperature must maintain 150°F. minimum.
Power rinse tank must maintain 160°F. minimum.
6. Monitor the final rinse temperature gauge as the dishrack moves into the final
rinse area. Minimum temperature required is 180-195 °F.
7. Monitor the final rinse pressure during the final rinse. Minimum final rinse
FLOWING pressure must be 20-22 psig. The pressure gauge may indicate a higher
rinse pressure after the final rinse water stops flowing. This is a normal condition.
WARNING:
Dishwasher surfaces, dishracks and wares become hot during and immediately
after washing operations. Wear protective gear per your supervisor's directions.
8. Slide the dishrack to the table system as it is ejected from the unload end of the
dishwasher. Inspect the wares for cleanliness.
9. Adjust chemical dispensing equipment (supplied by others) as required.
28
Part 3:
OPERATION
3.5 Shutdown Procedure
Perform the following steps to shutdown the dishwasher after every operation.
WARNING:
Dishwasher surfaces, dishracks and wares become hot during and immediately
after washing operations. Wear protective gear per your supervisor's directions.
1. Press the red stop button to shut off the pumps and conveyor.
2. Turn the power selector switch on the remote control cabinet to OFF.
The red power light goes out.
3. Turn the power off to the dishwasher at the main service disconnect switch or breaker.
4. Turn the power off to the electric booster (if applicable) at the main service disconnect
switch or breaker.
5. Close the steam supply valve (for steam heated dishwashers).
6. Open the wash tank and power rinse tank drain valves.
Valves are located on the lower front of the tanks.
7. Remove the lift-out doors, and rinse inside of doors.
8. Remove curtains to remote sink, and flush clean.
9. Remove the upper and lower spray arms.
Turn arms CCW 1/4 turn. Pull gently.
10. Inspect spray arm o-rings on manifolds. Replace if missing or damaged.
11. Remove end caps from spray arms, and flush arms with water.
12. Replace end caps in spray arms. Set spray arms aside.
13. Flush interior of machine to remove debris on upper hood surfaces.
14. Remove scrap screens from dishwasher interior.
15. Flush both sides of screens in remote sink to remove accumulated debris.
16. Flush interior of lower tanks with fresh water to remove debris.
17. Clean drain screens.
18. Wipe interior of dishwasher including tank bottoms.
19. Remove and clean pump intake screens. Replace immediately after cleaning.
20. Lift overflow covers, and flush water down overflow tubes.
21. Clean float switch assemblies, and check for free movement.
22. Flush steam coils or electric heaters.
Use a nonferrous scrub pad to remove scale from electric heaters (for electric heated
dishwasters.
23. Close overflow covers.
24. Replace scrap screens.
25. Replace spray arm assemblies.
26. Replace curtains.
27. Leave doors removed to aid air drying of dishwasher interior.
28. Turn power off to exhaust vents (if applicable).
29
Part 3:
OPERATION
3.6 Operation Summary
The following summarizes the steps for the normal operation of your
dishwasher.
1. Check that spray arms, curtains, scrap screens, and doors are in place.
Refer to Figures 3.4 and 3.5 below.
2. Check that detergent and rinse aid reservoirs are replenished.
(Dispensing equipment and chemicals are supplied by others.)
3. Check that drains are closed.
4. Turn the power on to the dishwasher at the main service disconnect switch.
5. Turn the power on to the electric booster at the main service disconnect switch
(for electric booster only).
6. Open manual tank fill valves. Monitor water level gauges.
7. Close fill valves when water level reaches center of water level gauges.
8. Turn power selector switch at remote control cabinet to ON.
9. Wait for tank water temperatures to reach operating temperature.
Wash tank temperature = 150°F. minimum
Power rinse tank temperature = 160°F. minimum
10. Press GREEN start button on control cabinet. Pumps and conveyor run.
11. Scrap and prerinse wares. Place in dishracks. Do not overload racks.
12. Slide dishrack into load end of dishwasher.
13. Check the final rinse temperature and the final rinse pressure during the final rinse
(180°-195°F @ 20-22 psig flow pressure).
NOTE:
The dishwasher may be stopped any time during the cycle by pressing the STOP
button on the control cabinet. Press the GREEN start button and all wares inside
the dishwasher will be fully washed and rinsed.
14. Refer to Part 4.2, Cleaning Schedule, for daily cleaning instructions.
15. Perform the shutdown procedure described on the preceding page.
n
pio
am
Ch
O-RING
SPRAY ARM
O-RING
Figure 3.4
Curtain Placement
(Right to left model shown)
30
Figure 3.5
Spray Arm Assembly
(Lower manifold shown)
END CAP
Part 4: CLEANING AND MAINTENANCE
PART 4: CLEANING AND MAINTENANCE
In This Part—
• Introduction
• Daily cleaning schedules
• Deliming schedules
• Preventive maintenance schedules
• Lubrication schedules
4.1 Introduction
Cleaning your machine is the best maintenance that you can provide. Components that are not
regularly flushed and cleaned do not perform well.
The following schedules are the minimum requirements necessary for the proper performance
of your machine. Intervals should be shortened whenever your machine is faced with abnormal
working conditions, hard water, or multiple shift operations.
4.2 Daily Cleaning Schedules
After Each Meal Period
1.
2.
3.
4.
5.
!
Drain the machine.
Flush interior with fresh water.
Clean scrap screens and pump intake screens.
Clean spray arms.
Clean the final rinse nozzle openings with a paper clip.
CAUTION:
Do not hose down the exterior of the machine with water.
6. Thoroughly clean the exterior of the machine with a mild soap solution.
7. Reassemble the machine.
8. Leave the doors off to aid in drying.
31
Part 4: CLEANING AND MAINTENANCE
4.3 Deliming Schedules
Your dishwasher should be delimed regularly depending on the mineral content of your water. Inspect the
machine interior for mineral deposits and use a deliming solution for the best cleaning results.
WARNING:
Deliming solutions or other acids must not come in contact with household bleach
(sodium hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine.
Mixing will cause hazardous gases to form.
Skin contact with deliming solutions can cause severe irritation and possible chemical burns.
WARNING:
Consult your chemical supplier for an appropriate deliming solution,
protective gear and safety procedures.
32
Part 4: CLEANING AND MAINTENANCE
4.4 Preventive Maintenance Schedules
Weekly Maintenance Requirements
Perform the following procedures every week.
!
CAUTION:
Only qualified service personnel should perform preventive maintenance
on the dishwasher
1. Inspect for leaks including all piping, tank seams, and supply connections.
Tighten or repair as required.
2. Inspect the lift-out doors for proper fit and ease of removal.
3. Check the operation of door safety switches.
Refer to Part 3.4, Safety and Operation Checks on page 22.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at
the disconnect switch to indicate work is being done on that circuit.
4. Turn the power selector switch to OFF at the remote control cabinet.
5. Drain the dishwasher if required and inspect the float switches and probes in the
bottom of each tank. Float switches should move freely. Clean if necessary.
6. Check the conveyor drive chains, spray arms and internal structures for wear or damage.
7. Reassemble the dishwasher.
8. Turn the power selector switch to ON at the remote control cabinet.
9. Check the operation of the start and stop switches on the control cabinet.
10. Check that the red power indicator works correctly.
11. Return the dishwasher to normal operation.
33
Part 4:
CLEANING AND MAINTENANCE
Quarterly Maintenance Requirements
Perform the following procedures every four months.
!
CAUTION:
Only qualified service personnel should perform preventive maintenance
on the dishwasher.
1. Perform all the procedures described in the weekly maintenance requirements.
2. Refer to Part 3.4, Safety and Operation Checks, and perform all the checks
described in this part.
3. Close all water and steam supplies. Run the dishwasher for 2 minutes to relieve
water and steam pressure in the lines.
4. Disassemble the water and steam inlet line strainers and clean as necessary.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at the
disconnect switch to indicate work is being done on that circuit.
5. Disconnect the power to the dishwasher at the main service disconnect switch.
Tag the circuit to indicate work is being performed on that circuit.
6. Disconnect the power to the electric booster (if applicable) at the main service disconnect switch.
Tag the circuit to indicate work is being performed on that circuit.
7. Open the control cabinet enclosure(s) and check the tightness of all electrical
wiring connections.
8. Inspect all wiring for signs of heat damage, and replace if necessary.
9. Manually operate the contactors and overloads checking for free movement.
10. Close the control cabinet enclosures.
11. Inspect and tighten all mounting hardware. Replace missing or damaged fasteners with
stainless steel replacements.
12. Return the dishwasher to normal operation.
NOTE:
Refer to Part 4.5, Lubrication Schedules, on the next page for quarterly lubrication procedures.
34
Part 4: CLEANING AND MAINTENANCE
4.5 Lubrication Schedules
Weekly Lubrication Requirements
There are no weekly lubrication requirements.
Non-lubrication Requirements
Do not lubricate the points described below.
WARNING:
Do not lubricate the stainless steel conveyor chain or shaft bearings inside
the dishwasher wash and power rinse tanks.
A
C
B
((C) is in machines prior to J1050)
Figure 4.1
Never Lubricate These Points
Refer to Figure 4.1 above.
1. NEVER LUBRICATE the stainless steel conveyor chains (A) located inside the
dishwasher.
2. NEVER LUBRICATE the drive shaft bearings (B) located inside the dishwasher on each
side of the conveyor drive shaft. The grease fittings on the top of each bearing serve to
keep out water.
3. NEVER LUBRICATE the idle shaft bearings (B) located inside the dishwasher on each
side of the conveyor take-up assembly. The grease fittings on the top of each bearing serve
to keep out water.
35
Part 4:
CLEANING AND MAINTENANCE
Quarterly Lubrication Requirements
Perform the following procedures every four months.
!
CAUTION:
Only qualified service personnel should perform preventive maintenance
on the dishwasher.
WARNING:
The conveyor drive contains moving parts.
Use caution when working around the conveyor drive assembly.
WARNING:
When working on the dishwasher, disconnect the electric service and place a red tag at the
disconnect switch to indicate work is being done on that circuit.
Refer to Figure 4.2 below.
1. Turn the power selector switch to OFF at the dishwasher remote control cabinet.
2. Remove the side panel protecting the drive chain located at the unload end of the dishwasher.
3. Apply a thin coat of oil (Browning GL32LT or comparable) to the drive chain (A).
Wipe off any excess.
4. Remove the oil level plug (B) from the top of the gearbox.
5. Remove the breather plug (C) from the side of the gearbox.
6. Remove the drain plug (D) from the bottom of the gearbox and drain the oil.
7. Flush the gear case with a light weight (5 or 10W) mineral oil.
8. Replace the drain plug (D) and refill the gearbox with Browning GL32LT or comparable oil.
9. Fill slowly until oil begins to drain from the oil level plug.
10. Allow the oil to settle for a few minutes, top off if required.
B
11. Replace oil level plug (B) and breather plug (C).
A
12. Replace side panel.
C
D
Figure 4.2
Conveyor Gearbox and Drive Chain
Lubrication
36
Part 5:
BASIC SERVICE
PART 5: BASIC SERVICE
In This Part—
• Introduction
• General troubleshooting
• Component adjustment, repair, and replacement
5.1 Introduction
Part 5, Basic Service, covers component adjustment, repair and replacement for the major
components of your dishwasher. Use the Troubleshooting Guide (part 5.2 General Troubleshooting) to identify the operating condition of your machine and follow the suggested solution. Some
solutions refer to a Repair Procedure 5.3.xx; these solutions should be attempted only by qualified
service personnel. If you require additional service support, you may call your local service
company or:
The Source
USA: 1-800-497-2144
Please have the Model and Serial Number of the machine ready when you call.
Schematics
Champion places an electrical schematic in the control cabinet of every machine before it is
shipped. Schematics are included at the back of this manual as well. Be aware that these schematics include options that may not apply to your machine. Options are enclosed in dashed lines with
the words (IF USED) next to them on the schematic. Disregard any options that appear on the
schematics which are not a part of your machine.
Electrical Circuit Tests
Use a clip-on AC current tester to check the motors and electric heaters.
Use a VOM to test line voltages and the 120VAC control circuit.
NOTE:
DO NOT USE CHASSIS GROUND WHEN PERFORMING VOLTAGE CHECKS.
Doing so will result in false and inaccurate readings.
PERFORM VOLTAGE CHECKS BY READING FROM THE HOT SIDE OF THE
LINE AND NEUTRAL (any #2 or white wire).
Tools
Most repairs can be made with: Standard set of hand tools, Volt/Ohm Meter (VOM), and
Clip-on AC current tester. Special tools necessary to perform a repair are noted in the specific
repair procedure.
37
Part 5:
BASIC SERVICE
5.2 General Troubleshooting
In the event that your dishwasher does not perform as expected, refer to the troubleshooting guide
below. Perform the action suggested in the solution column. Contact a qualified service
technician if the solution refers to a Repair Procedure in Part 5.3.
Many conditions may be resolved by performing the seven basic checks listed below:
1.
2.
3.
4.
5.
6.
7.
All switches are ON.
Drain valves closed.
Wash and rinse nozzles are clean.
Wash and rinse pipe assemblies are installed correctly.
Scrap screens are properly positioned.
Thermostat(s) are properly adjusted.
Detergent and rinse additive dispensers are adequately filled.
CONDITION
Machine will not start
38
CAUSE
Doors not closed ...................................
Main switch off .....................................
SOLUTION
Door safety switch faulty ......................
Conveyor jammed .................................
Water level low in tank(s) ....................
Defective float switch ...........................
Motor overload tripped .........................
Blown fuse or circuit breaker ................
Make sure doors are fully closed
Check disconnect at main panel
Check machine power switch
Refer to Repair Procedure 5.3.22
Refer to Repair Procedure 5.3.20
Check float switch(s) and fill tanks
Refer to Repair Procedure 5.3.5
Refer to Repair Procedure 5.3.24
Refer to Repair Procedure 5.3.23
Low or no water
Main water supply is turned off ............
Machine not filled initially ...................
Tank drain valve(s) open ......................
Clogged line strainer .............................
Faulty manual fill valve ........................
Turn on main water supply
Close drains/Open manual fill valves
Close drain valve(s)
Clean strainer screen/replace strainer
Replace manual fill valve
Pump motor not running
Motor overload tripped .........................
Defective motor ....................................
Refer to Repair Procedure 5.3.24
Refer to Repair Procedure 5.3.14
Tank(s) water
temperature is low
when in use
Incoming water temperature .................
to machine too low
Defective thermometer ........................
Defective thermostat .............................
Steam supply shut off ...........................
Low steam pressure ..............................
Defective steam solenoid valve ............
Defective steam trap .............................
Raise temperature to:
140°F/43-60°C
Refer to Repair Procedure 5.3.7
Refer to Repair Procedure 5.3.8
Turn on steam supply
Correct steam pressure is 15-30 PSI
Refer to Repair Procedure 5.3.4
Refer to Repair Procedure 5.3.11
Part 5:
BASIC SERVICE
5.2 General Troubleshooting (Cont.)
CONDITION
CAUSE
SOLUTION
Insufficient pumped
spray pressure
Clogged pump intake screen .................
Clogged spray pipe ...............................
Scrap screen full of debris ....................
Low water level in tank ........................
Pump motor rotation incorrect
Clean pump intake screen
Clean spray pipe
Must be kept clean and in place
Check drain valve(s)
Refer to Part 3.3, Start-up Procedure,
Steps 21-23, page 24
Refer to Repair Procedure 5.3.14
Replace missing end plug
Replace missing O-ring
Refer to Repair Procedure 5.3.13
Defective pump seal ..............................
Spray pipe end plug missing .................
Spray pipe O-ring missing ....................
Wash restrictor needs adjustment .........
Insufficient final rinse
or no final rinse
Low final rinse
temperature
Faulty pressure reducing valve .............
Improper setting on pressure .................
reducing valve
Clogged rinse nozzle and/or pipe ..........
Clogged line strainer .............................
Defective final rinse switch ..................
Defective final rinse solenoid valve ......
Low incoming water .............................
temperature
Booster steam supply shut off ...............
Booster water supply shut off ...............
Rinse nozzle or pipe cap missing
Defective final rinse thermostat ............
Defective thermometer .........................
Low steam pressure ..............................
Defective steam solenoid valve ............
Defective steam trap .............................
Poor washing results
Detergent dispenser ...............................
not operating properly
Insufficient detergents ...........................
Wash water temperature .......................
too low
Wash arm clogged ................................
Improperly scraped dishes ....................
Ware improperly placed in rack ............
Drain-Overflow(s) clogged ...................
debris not skimmed from tank(s) ..........
Wash water not drained at specified .....
intervals
Conveyor not moving
dishracks
Drive motor V-belt broken ...................
Conveyor chain needs adjustment ........
Conveyor shaft bearings defective
Refer to Repair Procedure 5.3.1
Correct pressure setting is 20-22 PSI
Clean pipe/nozzles
Clean screen or replace line strainer
Refer to Repair Procedure 5.3.15
Refer to Repair Procedure 5.3.4
Increase incoming water temperature
110°F minimum for 70°rise booster
140°F minimum for 40°rise booster
Turn on steam supply
Turn on water supply
Replace missing part
Refer to Repair Procedure 5.3.9
Refer to Repair Procedure 5.3.7
Correct steam pressure is 15-30 PSI
Refer to Repair Procedure 5.3.4
Refer to Repair Procedure 5.3.11
Check dispenser
Refill containers
See condition “Tank(s) water
temperature is low when in use”
Clean
Check scraping procedures
Use proper racks. Do not
overload racks
Check overflow tubes
Drain tanks every two hours
or after each meal period.
Replace drive belt
Refer to Repair Procedure 5.3.16
Refer to Repair Procedure 5.3.17
and Repair Procedure 5.3.18
39
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement
Part 5.3 contains instructions for the adjustment, repair, and replacement of components which may
require service due to normal wear and tear. The following procedures should only be performed by
qualified service personnel.
THE FOLLOWING CAUTION AND WARNINGS MUST BE FOLLOWED AT ALL TIMES:
!
CAUTION:
Only qualified service personnel should perform adjustments and repairs to the dishwasher.
WARNING:
When repairing a circuit, disconnect the power at the main service disconnect switch and
place a red tag at the disconnect switch to indicate that work is being performed on the circuit.
WARNING:
Use extreme caution when performing tests on energized circuits.
WARNING:
The conveyor drive contains moving parts.
Use caution when working around the conveyor drive assembly.
5.3.1 Pressure Reducing Valve (PRV) Adjustment
The PRV is located on the 3/4" incoming water supply before the
final rinse booster assembly. To adjust the pressure setting on the
PRV, loosen the locknut on the adjusting screw in the top of the
PRV. Turn the adjusting screw clockwise to increase the pressure
setting. Turn the screw counterclockwise to decrease the pressure
setting. The USN-72 dishwasher requires a flowing pressure of
20-22 PSI during the final rinse. With the dishwasher in normal
operation, place a dishrack in the machine. While final rinse
water is flowing, monitor the final rinse pressure gauge located at
the top of final rinse piping assembly. Adjust the PRV screw to
achieve a flowing pressure of 20-22 PSI.
The PRV does not contain any service replacement parts. If
adjustment will not provide the proper flowing pressure, then replace the PRV. To replace the PRV: Turn
main water supply to the dishwasher off. Place a rack in the dishwasher to activate the final rinse. This
will bleed any water pressure out of the line. Remove the PRV from the piping system. Reinstall using
pipe sealing compound. Turn the water supply on, test for leaks, and perform the adjustment described
above.
40
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.2 Water Line Strainers
There are two water line strainers on the USN-72 dishwasher. The first strainer is located on the
3/4" main water line to the booster. The second is located on the incoming water line for the tank
fill. The line strainer screen may become clogged with debris. To clean the strainer screen: Turn
off the main water supply valves. Open the tank fill manual valves to bleed off pressure. Run a
dishrack through the machine to operate the final rinse and bleed off water pressure at the booster.
Turn power off at the dishwasher control cabinet. Remove the locknut at the end of each strainer
"Y." Remove the strainer screen and flush clean with water. Reinstall in reverse order. Turn on
water supplies and check for leaks.
5.3.3 Vacuum Breaker Repair
Vacuum Breakers are located at the top of the USN-72 in the 3/4" final rinse water
line and each of the 1/2" tank fill lines. They prevent the siphoning of dishmachine water back into the potable water supply. Each vacuum breaker contains
a moveable float. To replace the float: Turn off the main water supplies. Turn off
the power at the dishwasher control switch. Unscrew the top of the vacuum
breaker. Remove the float. Inspect the interior of the vacuum breaker. Remove
any mineral deposits and inspect the float seating surfaces for pitting. (If badly pitted, replace the
entire vacuum breaker assembly). Install a new float repair kit and reassemble in reverse order.
Turn on power and water supplies. Operate the dishwasher and check for leaks.
5.3.4 Water Solenoid Valve Repair
A 3/4" water solenoid is located in the final rinse water line at the
outlet of the final rinse booster. The valve is controlled by the operation of the final rinse switch assembly which connects 120VAC to the
valve coil during a final rinse operation. If the valve fails to operate,
first check that 120VAC is supplied to the valve coil. If voltage is not
present, then refer to the electrical schematic and troubleshoot the
circuit. If voltage is present then the valve may require a rebuild kit or
replacement coil. Turn off power at the dishwasher power switch and
main disconnect. Turn off main incoming water supply and bleed off
any water pressure in the line. Check the coil for continuity with a VOM set at the highest
resistance range. If the coil checks good then disassemble the valve by unscrewing the threaded
bonnet with a strap or spanner wrench. Remove and inspect the valve piston and diaphragm.
Inspect the valve seat for mineral deposits and pitting. (Replace the complete valve assembly if
pitting is severe). Reassemble the valve in reverse order. Turn on power and water supplies and
check for leaks.
41
Part 5:
BASIC SERVICE
5.3.5 Float Switch Replacement
Refer to Fig. 6.12, C , Part 6, Replacement Parts, for a detailed drawing of the float switch assembly.
Each tank contains a float switch assembly which monitors the water level in the tank. When the water
level drops below a preset level the ball on the float switch stem drops and opens a reed switch. The
control relay associated with the float switch changes state. A set of normally closed contacts open
interrupting power to the 120VAC control circuit and the dishwasher stops. If you suspect a defective
float switch: Turn power off at the dishwasher control cabinet. Drain the tank and inspect the float.
Make sure the float is clean and moves freely. Identify the float switch wires in the junction box located
on the lower corner of the dishwasher front. Disconnect the float switch and connect its associated
control wires together. Turn power on and restart the dishwasher. If the dishwasher operates normally,
then replace the float. To remove the float assembly: Remove the float switch cover. Remove the
5/16-18 nut on the outside of the tank. The mounting hole is keyed so the float switch will not turn.
Remove the float switch assembly from the inside of the tank. Install a replacement in reverse order.
Reconnect the float switch wires in the junction box. Turn power on, refill the tank, and test the
dishwasher for normal operation.
5.3.6 Drain Valve and Overflow Assembly
Refer to Fig. 6.15, Part 6, Replacement Parts, for a detailed drawing of the drain and overflow assembly.
Note items 1-4. These parts make up the overflow assembly. The assembly consists of an overflow tube
with drain box topped by a hinged cover. The cover tilts up to allow inspection and cleaning. Lift up the
hinged cover and inspect the overflow tube if an obstruction is suspected. Item 10 shows the drain screen.
This screen should be inspected daily and cleaned. Item 12 illustrates the drain assembly. It consists of
soldered copper pipe and if defective must be replaced as a unit. Note the cleanout plug to the left of the
drain valve. This plug can be removed to clean possible obstructions from the drain assembly. Item 13
shows the 1-1/2" cleanout plug in the drain trunk line. Remove the plug to inspect and clean the main
dishwasher drain line.
5.3.7 Thermometer Replacement
Refer to Fig. 6.12, Part 6, Replacement Parts, for a detailed drawing of the thermometer assemblies. The
thermometers are mounted to brackets on the top of the dishwasher. Thermometer capillary tubes run
from the top of the dishwasher to the right and left ends of the tanks. The thermometer bulbs are retained
inside the tanks by a 1/2" locknut. The final rinse thermometer bulb mounts directly into the upper final
rinse piping at the top of the dishwasher. Tank and final rinse thermometers are factory sealed indicating
devices which are accurate within ±3° of the intended range of use. The thermometers cannot be calibrated and must be replaced if defective. To replace a thermometer: Drain the machine and turn off all
power. Have a helper hold the thermometer bulb from the outside of the machine. Remove the 1/2"
locknut from the inside of the tank and pull the thermometer sensor bulb out of the tank. Remove the nuts
and retainer from the thermometer bracket. Pull the thermometer out the front of the bracket. Replace the
thermometer and reassemble in reverse order. Be sure to apply plumber's putty, (Champion P/N 104889),
to seal the thermometer bulb fitting in the tank. Return the dishwasher to normal operation and check the
temperature reading.
42
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.8 Tank Heat Thermostat Adjustment and Replacement
Refer to Fig. 6.12, B , Part 6, Replacement Parts, for a detailed drawing of the thermostat
assembly. Each tank has a control thermostat mounted on its front in a stainless steel enclosure.
The thermostat capillary tubes run to either side of the tank. The thermostat sensor bulb enters
the tank and is secured inside the tank with a 1/2" locknut. The thermostats are adjusted by
turning a small adjustment screw mounted on the side of the device. The thermostats have an
operating range of 110-200°F. Place the machine in normal operation and monitor the associated
tank thermometer. Wash tank temperature should maintain a minimum of 150°F. Power rinse
tank temperature should maintain a minimum of 160°F.
Wash Tank Temperature = 150°F minimum
Power Rinse Tank Temperature = 160°F minimum
To adjust a thermostat: Turn the adjusting screw incrementally 1/8 to 1/4 of a turn clockwise.
Monitor the temperature thermometer after each adjustment until the desired temperature setting
is maintained during normal dishwasher operation.
To replace a thermostat: Drain the tanks and turn off all power to the dishwasher.
Have a helper hold the thermostat sensor bulb from the outside of the machine and remove
the 1/2" locknut from the interior of the tank. Pull the bulb and capillary back to the thermostat
junction box. Note the wire locations and disconnect the thermostat. Remove two retaining nuts
and remove the thermostat assembly. Install a new thermostat in reverse order. Be sure to apply
plumber's putty (Champion P/N 104889) to seal the thermostat bulb fitting in the tank. Return the
dishwasher to normal operating condition and adjust the thermostat as described above.
5.3.9 Final Rinse (Steam) Thermostat Adjustment and Replacement
Refer to Fig. 6.16, Part 6, Replacement Parts, for a detailed
drawing of the steam booster assembly. Note Items 10, 17 and
19. This shows the location of the final rinse control thermostat.
The thermostat has a range of 50-300°F. However, the operating range for final rinse application is 180-195°F. The normally
open contacts of the thermostat open on temperature rise.
The normally closed contacts close on temperature rise.
The thermostat's N.O. contacts are used for this application.
The final rinse thermostat controls operation of the steam
booster solenoid. It senses the outlet temperature of the final
rinse water leaving the booster and energizes or deenergizes the
steam solenoid as needed to maintain the final rinse temperature within 180-195°F.
Note Items 10, 17 and 15 in Fig. 6.16. This shows the location of the low temperature cutoff
thermostat, (TSK). The final rinse thermostat and the low temperature thermostat are identical.
The TSK has two applications. It may be used to immediately shut down the dishwasher in the
event the final rinse water temperature falls below 180°F., or it may be used to activate a chemical sanitizing system (supplied by others) which does not immediately shut down the dishwasher.
NOTE:
The operation of the low temperature cutoff thermostat is dependent on the final rinse
thermostat. Adjust the final rinse thermostat and the low temperature cutoff
thermostat together.
43
Part 5:
BASIC SERVICE
5.3.9 Final Rinse (Steam) Thermostat Adjustment and Replacement (Cont.)
To adjust the final rinse thermostat: Turn power off to the dishwasher at the dishwasher control
cabinet. Block the final rinse activator so the final rinse runs constantly. Return the dishwasher to
normal operation. Remove the protective cap from the center of the final rinse thermostat enclosure
to expose the adjusting screw. Turn the adjusting screw incrementally 1/16 of a turn clockwise to
increase the final rinse temperature. Turn the screw counterclockwise to reduce the final rinse
temperature. Monitor the final temperature thermometer after each adjustment until temperature
maintains a minimum of 182-185°F.
NOTE:
The normally open contacts of the low temperature cutoff thermostat must close whenever the
final rinse temperature falls below 180°F.
To adjust the low temperature cutoff thermostat: First perform the final rinse thermostat procedure
described above. Turn the steam supply off to the booster assembly so the final rinse temperature falls
below 180°F. Remove the protective cap from the center of the cutoff thermostat enclosure to expose the
adjusting screw. Turn the adjusting screw incrementally 1/16 of a turn clockwise to increase the cutoff
temperature. Turn the screw counterclockwise to reduce the cutoff temperature. In other words, if the
final rinse water temperature is 182°F. and the low cutoff thermostat activated the chemical sanitizing
system (supplied by others), then it would be necessary to turn the screw counterclockwise to reduce
the cutoff temperature to 178-180°F.
To replace the final rinse or cutoff thermostat: Turn off the water and steam supplies to the booster.
Place a rack in the dishwasher to operate the final rinse and bleed off any water pressure from the line.
Turn power off to the dishwasher at the dishwasher control. Remove the protective cap and round cover
from the thermostat body. Note the location of the wires and disconnect. Disconnect the conduit.
Remove the thermostat from the booster piping. Install the replacement in reverse order. Return the
dishwasher to normal operation and perform the adjustment procedures described above.
For machines S/N J1698 and after: To replace the control thermostat see the Special Bulletin Section
on page 111 at the end of this manual for instructions on the replacement of the thermostat.
5.3.10 Steam Solenoid Valve Repair
The USN-72 dishwasher uses a 3/4" steam solenoid valve on each tank
steam supply line. The 3/4" steam valves are identical in appearance to the
3/4" water valves, (See 5.3.4). The steam booster uses a 1" steam solenoid
valve on the inlet of the booster steam supply line, (See picture at right).
The 3/4" valves are controlled by a tank heat thermostat, (See 5.3.8), which
connects 120VAC to the valve coil during a call for heat. If the valve fails to
operate, first check that 120VAC is supplied to the valve coil. If voltage is not
present, then refer to the electrical schematic and troubleshoot the circuit. If
voltage is present then the valve may require a rebuild kit or replacement coil.
Turn off power at the dishwasher power switch and main disconnect. Turn off
main incoming steam supply and bleed off any steam pressure in the line. Check the coil for continuity
with a VOM set at the highest resistance range. If the coil checks good then disassemble the valve by
unscrewing the threaded bonnet with a strap or spanner wrench. Remove and inspect the valve piston and
diaphragm. Inspect the valve seat for mineral deposits and pitting. (Replace the complete valve assembly
if pitting is severe). Reassemble the valve in reverse order. Turn on steam and power supplies and check
for leaks.
44
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.10 Steam Solenoid Valve Repair (Cont.)
The 1" valve is controlled by the final rinse control thermostat, (See 5.3.9), which connects
120VAC to the valve coil during a call for heat. If the valve fails to operate, first check that
120VAC is supplied to the valve coil. If voltage is not present, then refer to the electrical schematic and troubleshoot the circuit. If voltage is present then the valve may require a rebuild kit or
replacement coil. Turn off power at the dishwasher power switch and main disconnect. Turn off
main incoming steam supply and bleed off any steam pressure in the line. Check the coil for
continuity with a VOM set at the highest resistance range. If the coil checks good then disassemble the valve by removing the four bolts in the valve bonnet. Remove and inspect the valve
piston and diaphragm. Inspect the valve seat for mineral deposits and pitting. (Replace the
complete valve assembly if pitting is severe). Reassemble the valve in reverse order. Turn on
steam and power supplies and check for leaks.
5.3.11 Steam Trap Repair and Replacement
1/2" NPT thermodynamic steam traps are installed in the condensate lines
for the steam booster and tank heat steam coils. All condensate lines for the
USN-72 must be gravity drain with no back pressure in order for the steam
trap to function correctly.
To test the operation of a steam trap: Turn off the steam and water
supplies. Turn off the power at the dishwasher control cabinet. Bleed any
steam pressure from the lines. Disconnect the condensate return line downstream from the steam
trap. Return the dishwasher to normal operation and observe the discharge coming from the
steam trap. If you do not observe small amounts of water periodically discharged then the stream
trap is most likely defective.
To clean a steam trap: Turn off the steam and water supplies. Turn off the power at the dishwasher control cabinet. Bleed any steam pressure from the lines. Remove the large hex cap in
the center of the steam trap. Remove the disc and inspect the steam trap orifice below.
Clean the orifice with a paper clip or other smooth tool. Reassemble the trap in reverse order.
To replace a steam trap: Turn off the steam and water supplies. Turn off the power at the
dishwasher control cabinet. Bleed any steam pressure from the lines. Break the union in the
condensate line before the steam trap. Remove the trap. Install a replacement trap in reverse
order making sure to apply pipe sealant to threads. Return the dishwasher to normal operation
and test the trap as described above.
5.3.12 Steam Booster Service
Refer to Fig. 6.16, Part 6, Replacement Parts, for a detailed drawing of the steam booster assembly. The steam booster consists of three pieces as shown on the next page: the shell casting into
which the straight seamless copper tubes are fitted, the rear header, and the flow header with two
tappings for tank connections. Headers are bolted to the shell casting and sealed against leaks by
heavy gaskets. Where soft water or low percentage of mineral deposits is used, it should only be
necessary to clean the heater tubes annually. No acids are needed to clean the heater tubes.
NOTE:
A single spiral, fine wire brush, 3/4" external diameter (Champion P/N 112806)
or comparable is recommended for cleaning the booster heater tubes.
45
Part 5:
BASIC SERVICE
5.3.12 Steam Booster Service (Cont.)
Annual Heater Tube Cleaning
Parts Required:
P/N 112357, Gasket (Return header)
P/N 112356, Gasket (Flow header)
Special Tools Required:
Torque wrench (30 ft/lbs needed)
Return header gasket
P/N 112357
Flow header gasket
P/N 112356
To clean the heater tubes: Turn off all
power, steam, and water supplies to the
Steam Booster
booster and dishwasher.
Refer to Fig. 6.16, Part 6, Replacement
Parts. Note thermostats (item- 10).
Remove the thermostat covers, mark and
disconnect the wires. Remove the conduit
and fittings. Mark the location of each thermostat before removal, then unscrew each thermostat
from its piping. Break the unions (item 12) and remove the piping assemblies from the booster
header. Remove the eight (8) bolts from each header. Remove the flow and return headers.
Inspect the exposed copper tubes and clean as necessary using the cleaning brush
(Champion P/N 112806). Clean the headers as required.
Install new header gaskets and reassemble in reverse order.
To torque the header bolts:
Refer to the torque sequence diagram to the right.
Torque each bolt in three steps:
1) handtight
2) 20 ft/lb
3) 30 ft/lb
Retorque each bolt to 30 ft/lb after 24 hours.
Bolts = 3/8-16
SA-449
Type 1
1
8
3
8 BOLTS
4
7
6
46
5
2
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.13 Wash Manifold Restrictor Adjustment
Refer to Fig. 6.14, Replacement Parts, Item 8. The illustration shows the slide restrictor mounted
in the lower wash manifold of each tank. The restrictor is set at the factory but may be adjusted
if necessary. The factory setting evenly balances the water pumped to the upper and lower spray
pipes. If more water is required in the lower pipes, then the restrictor should be pulled out. If
less water is required in the lower spray pipes, then the restrictor should be pushed in.
To adjust the restrictor: Turn off power at the dishwasher control cabinet. Loosen the manifold bolts (Item 2) in the lower manifold. Move the restrictor to the desired position. Tighten the
manifold bolts. Turn on power and operate the dishwasher. Observe the spray pattern between
the upper and lower spray pipes. The lower spray pattern should not be reduced to less than 1/3
of the upper spray pipe water pattern because washing results may suffer as a result.
5.3.14 Pump Seal Replacement
Refer to Fig. 6.13, Replacement Parts, for a detailed drawing of the pump/motor assembly.
Perform the steps listed below to replace a pump seal.
1. Disconnect the power to the machine at the main breaker panel or fuse box.
2. Drain the machine.
3. Remove the front and side panels (if applicable).
4. Remove drain plug on the pump volute and drain the pump.
5. Remove the pump hoses.
6. Disconnect the wires to the motor at the motor junction box.
7. Unbolt motor from machine base and remove the pump/motor assembly.
8. Remove bolts on volute and carefully remove from the pump flange.
9. Remove the impeller retaining bolt and nut from center of impeller.
10. Lock the motor shaft with a wrench or pliers. The back of motor shaft is square.
11. Turn the impeller counterclockwise to remove from shaft (right hand threads).
12. Remove the old seal and discard.
13. Check seal seat in the pump flange and clean thoroughly.
14. Press rubber seal/ceramic portion of seal assembly into the pump flange. Use a water
soluble lubricant. Be careful to keep the ceramic clean.
15. Install the rotating part of the seal on the shaft with the graphite surface toward the ceramic.
Use a water soluble lubricant on the rubber seal part only (not the graphite).
16. Reinstall impeller, and new flange gaskets. Reinstall bolts. Reinstall drain plug.
17. Reinstall the pump/motor assembly and reconnect the pump hoses.
18. Fill the dishwasher with water.
19. Check motor rotation by bump starting motor.
Correct motor shaft rotation is clockwise when viewing motor from the rear.
20. Test run and check for leaks.
47
Part 5:
BASIC SERVICE
5.3.15 Rinse Saver Assembly Repair
Refer to Fig. 6.8, Part 6, Replacement Parts, for a detailed drawing of the rinse saver assembly.
The rinse saver assembly, located at the unload end of the dishwasher, consists of a dishrack
actuated paddle assembly, a magnet, and a magnetic reed switch mounted on the underside of the
hood assembly. As a dishrack approaches the final rinse area, it contacts the paddle assembly.
The magnet moves away from the magnetic reed switch mounted underneath it. The reed switch
contacts close deenergizing 4CR relay. 4CR N.C. contacts close and power is applied to the final
rinse water solenoid valve.
If the final rinse switch were to fail with its contacts closed, the resulting condition would be no
final rinse assuming all other components operate normally.
If the final rinse switch were to fail with its contact open , the resulting condition would be
continuous final rinse.
To replace the final rinse switch: Turn off power at the dishwasher control cabinet. Remove the
switch cover box. Note the orientation of the magnetic reed switch before removal. Remove the
two (2) retaining nuts holding the switch. Install the replacement and reassemble in reverse order.
Return the machine to normal operation. Insert a dishrack into the machine to verify proper final
rinse operation.
5.3.16 Conveyor Chain Take-up Assembly Adjustment
Refer to Fig. 6.6, Part 6, Replacement Parts, for a detailed drawing of the take-up assembly.
The take-up assembly provides the means to compensate for wear in the conveyor chains. Adjustment is made by turning the two adjusting screws (Item 1) to maintain proper tension.
NOTE:
Correct chain tension occurs when the chains can be lifted off the tracks a maximum of
1-1/2" measured at the center of the dishwasher.
To adjust the chain tension: Turn off power at the dishwasher control cabinet. Drain the
machine and remove the curtain assemblies. (Refer to Fig 6.5, Replacement Parts, Items 1-3).
Check the chain guides before beginning the chain adjustment. Replace the guides if worn.
(Refer to Fig.6.6). Check the chain tension and estimate the amount of adjustment required.
Check the alignment of the conveyor shaft; the shaft and chain gears should be even on both
sides. Loosen the jam nuts (Item 2). Turn the adjusting screws (Item 1) evenly on both sides.
Check the distance the chain can be lifted off the center portion of the tracks after each adjustment. When the chain tension is correct, tighten the jam nuts. Return the dishwasher to normal
operation and check that the chains track evenly on both sides and engage the drive gears
smoothly. Stop the dishwasher and recheck the chain tension. Return the dishwasher to service.
48
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.17 Take-up Bearing Replacement
Refer to Fig. 6.6, Replacement Parts, for a detailed drawing of the take-up assembly.
It is recommended to replace both take-up bearings at the same time.
To replace the bearings: Turn off all power to the dishwasher. Drain the tanks and remove
the curtains and doors. Loosen the jam nuts (Item 2) and remove all tension from the chains.
Locate the conveyor chain master links (1 per chain) and remove. Pull the chains off the load end
gears and toward the unload end of the machine. Remove the take-up assembly mounting bolts,
(Items 12-14). With the aid of an assistant, lift the entire assembly off the lower mounting studs.
Turn the assembly diagonally in the machine until one end of the shaft extends out the load end of
the dishwasher. Remove the assembly from the machine. Remove the set screw from one of the
chain drive gears and remove the gear. Remove the set screws from the take-up bearings. Pull
the drive shaft out of the bearings. Snap the take-up bearings out of the housings, (Items 5-6).
Replace the bearings and reassemble in reverse order. Adjust the chain tension as described
in Part 5.3.16.
5.3.18 Drive Shaft Bearing and Seal Replacement
Refer to Fig. 6.6, Replacement Parts, for a detailed drawing of the take-up assembly and the
drawing below for a detailed view of the drive shaft seal assembly. It is recommended to replace
both drive shaft bearings at the same time.
To replace the bearings: Refer to Fig 6.6, Replacement Parts. Turn off all power to the dishwasher. Drain the tanks and remove the curtains and doors. Remove the chain drive cover at the
unload end of the machine. Loosen the jam nuts (Fig. 6.6, Item 2) and remove all tension from
the chains. Locate the conveyor chain master links (1 per chain) and remove.
Pull the chains off the unload end gears and toward the load end of the machine.
Refer to the drawing at right and
Fig 6.5, Part 6, Replacement Parts.
Seal
Remove the master link from
end
Drive
d
the #50 drive chain on the
a
lo
Shaft
Un
outside of the machine.
Remove the set screws from
Drive shaft
the main drive gear. Remove
Bearing
the drive gear. Loosen the
set screws from the interior
stainless steel drive gears.
Remove set screws from the drive shaft bearings.
Remove the seal from the bore of the front drive
shaft bearing. With the aid of an assistant, pull the
conveyor drive shaft out the front of the machine.
Remove the four (4) screws holding each of the
To
drive shaft bearings. Replace the bearings and
ge
arb
reassemble in reverse order. When the drive shaft
ox
is set in the rear bearing, install a new seal. Complete
the reassembly. Adjust the chain tension as described
in Part 5.3.16. Return the dishwasher to service.
49
Part 5: BASIC SERVICE
5.3.19 Door Safety Switch Replacement
Refer to Fig. 6.12, A , Part 6, Replacement Parts, for a detailed drawing of the door switch
assembly. The door safety switch assembly consists of a magnet installed in each lift-out door
and a magnetic reed switch mounted in an enclosure beneath the door frame. The door safety
switch prevents the dishwasher from operating if a door is missing or lifted during operation.
To check a door safety switch: Turn power off at the dishwasher control cabinet. Inspect the
door to ensure the magnet is in place and secure. Remove the door switch cover and disconnect
the reed switch leads. Make sure all doors are fully closed. Connect the door safety switch
harness wires together. Turn power on and check if the machine runs normally. If machine
operates, turn off power and replace the door switch. Do not leave the door switch bypassed for
any reason other than testing.
To replace a door safety switch: Turn power off at the dishwasher control cabinet. Note the
orientation of the reed switch. Mark the wires and disconnect. Remove the two (2) retaining nuts
holding the switch. Install the new switch and reassemble in reverse order. Turn power on and
operate the dishwasher. Check the switch operation by carefully lifting the door approximately
1". The dishwasher should stop. Return the dishwasher to service.
5.3.20 Control Circuit Explanation
The following explanation provides background information for Parts 5.3.21 through 5.3.24.
The USN-72/S is a steam heated, 2-tank rack machine. The USN-72/S is to have the following
control features/functions:
1.) Wash down duty motors.
2.) 2 HP wash and rinse tank pumps.
3.) Machine to not function when booster temp. falls below 180°F.
or to switch to a chemical sanitizing system (supplied by others).
4.) Manual filling of the tanks.
5.) NEMA 4X control box that is remote mounted.
6.) Float tank protection with a 5 second debounce.
7.) 120V control voltage.
8.) Door safety switches.
9.) Rinse saver for potable water conservation.
50
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.20 Control Circuit Explanation (Cont.)
INITIAL STATE OF THE MACHINE
Doors open
Power off
Tanks empty
Booster full of water
End of cycle
THEORY OF OPERATION
The days first operation should find the machine in the above condition. The operator is to then
fill the machine through the manual ball valves to the specified level suitable for operation. At
this point the machines power switch, SW, can be turned to the “ON” position.
1.) THE “CB” CIRCUIT BREAKER
The purpose of this device is to limit the machines control current and is rated for 5A. The
normal state of this device is closed. When the control circuit has a current fault the breaker will
open, the button on the face of the breaker will push out, and shut down the machines operation.
It is reset by pushing the button on the face back in.
2.) THE “SW” POWER SWITCH
The purpose of this device is to turn the machine on and off. In the “ON” position, the switch
passes power from the circuit breaker, CB, to wire #3. With the switch “ON” the power on light,
“PL”, will illuminate. Wire #3 is the controlling voltage that allows other devices to operate with
no other conditions satisfied other than the power being on. These devices include:
A.) 1CR. The relay 1CR monitors the state of the door switches. If either the wash or rinse tank
door is open the relay will not energize. Contacts on this relay prohibit the pumps and conveyor
from running when the doors are open, they prohibit the final rinse valve from energizing with
the doors open, and prohibit the steam coils from energizing with the doors open.
B.) WFSW The device WFSW is the wash tank float switch. When the wash tank is empty the
magnet in the float causes a reed switch in the stem to close. This energizes the wash tank float
switch relay, 6CR.
C.) RFSW The device RFSW is the rinse tank float switch. When the rinse tank is empty the
magnet in the float causes a reed switch in the stem to close. This energizes the rinse tank float
switch relay, 7CR.
51
Part 5:
BASIC SERVICE
D.) RT The device RT is the rinse tank float switch timer. This timer is a motor and clutch type
device. When the rinse tank is empty relay 7CR energizes opening 7CR N.C. This removes the
voltage from the clutch of the timer and begins the 5 second low water timing operation. After the
power has been absent for 5 seconds the N.C. contacts of RT opens causing relay 3CR to deenergize. The N.O. contacts of 2CR in the pump and conveyor hold-in circuit (see PUMP AND
CONVEYOR HOLD-IN CIRCUIT for details) open and cause the contactors to drop out. Whenever power is reapplied to the clutch the N.C. contact of RT closes and relay 2CR reenergizes.
Providing the rest of the hold-in circuit is satisfied the pumps and conveyor ca then be restarted
with the START button.
E.) WT The device WT is the wash tank float switch timer. This timer is a motor and clutch type
device. When the wash tank is empty relay 6CR energizes opening 6CR N.C. This removes the
voltage from the clutch of the timer and begins the 5 second low water timing operation. After the
power has been absent for 5 seconds the N.C. contacts of WT opens causing relay 2CR to deenergize. The N.O. contacts of 3CR in the pump and conveyor hold-in circuit (see PUMP AND
CONVEYOR HOLD-IN CIRCUIT for details) open and cause the contactors to drop out.
Whenever power is reapplied to the clutch the N.C. contact of WT closes and relay 3CR reenergizes. Providing the rest of the hold-in circuit is satisfied the pumps and conveyor ca then be
restarted with the START button.
F.) TLS The device TLS is a table limit switch. The state of this switch drives the relay 5CR. The
contacts of this relay are used in the pump and conveyor hold-in circuit.
3.) PUMP AND CONVEYOR HOLD-IN CIRCUIT
The pump and conveyor hold-in circuit consists of switches, contacts, and buttons used to
energize the pump and conveyor contactors. This circuit is satisfied under the following conditions:
A.) xMOL - The pump and drive overloads are wired in series through the N.O. contacts of each
individual overload. In the normal operating state, the switch lever is in the up position with a
white “1” visible against a black background. In this position the N.O. contacts are closed and
remain closed until an over current condition occurs that causes the contacts to open back up.
Once the cause of the fault has been corrected these overloads can be reset by flipping the switch
to the up position
B.) 5CR - The N.O. contacts of 5CR will prevent the machine continuing to operate until the
rack causing the fault is removed. This prevents racks from jamming in the machine.
C.) MSW - The MSW limit switch is located under the conveyor motor drive base and its normal
state is closed. It prevents the machine from operating if the conveyor drive mechanism senses an
over torque condition. If a rack conveyor jam occurs, the gearbox will attempt to climb the drive
chain. Since the gearbox is attached to a plate that pivots vertically, the switch opens when the
gearbox climbs the dive chain. This switch is reset by mechanically fixing the conveyor jam.
52
Part 5:
BASIC SERVICE
5.3 Component Repair and Replacement (Cont.)
5.3.20 Control Circuit Explanation (Cont.)
D.) TSK - The TSK is the thermal kill switch that prevents the machine from operating when the
final rinse water in the booster is below 180°F. The N.O. contacts of this thermostat open on
temperature rise. When a fault occurs the indicator light TKL illuminates and the hold-in circuit
drops out. At the beginning of the day the water in the booster is cold and the steam valve is off.
If the rinse tank is filled with water and the doors are closed the valve BC1 will energize and
allow steam to flow through the heat exchanger in the booster. After a short period of time the
water in the booster will heat enough to satisfy the thermostat. If the machine has sat idle for a
while the water in the piping may cool enough to cause the thermostats N.C. contacts to open.
This condition can be corrected by holding in the START button. This causes the relay 4CR to
de-energize and power to pass through the N.C. contacts of 4CR to the final rinse valve FRV.
When the thermostat is satisfied the indicator light TKL will extinguish and the START button
can be released. If all other conditions in the pump and conveyor hold-in circuit are satisfied the
machine will automatically restart.
E.) 2CR and 3CR N.O. - The 2CR and 3CR N.O. contacts prevent the pumps from running if
there is not water in either of the two tanks. The circuit controlling these contacts have a 5 second
delay in them to allow for the ships rolling and pitching without false stopping.
F.) START BUTTON - The start button has two functions in this machine. The first, and most
obvious, is to begin the machine operating. If all other devices in the hold-in circuit are satisfied
the N.O. contact of contactor 1M will seal in the START button once it is released. The second is
to allow water to flow by the thermal kill switch after the switch has shut down the pump and
conveyor hold-in circuit. The start button acts as priming device to get hot water flowing past the
TSK so the switch will close again.
G.) STOP BUTTON - The STOP button will cause the N.O. contact of the contactor 1M to open
after the machine has begun operating. This in turn causes the hold-in circuit to drop out and the
machine to cease functioning.
H.) 1CR N.O. - The N.O. contact of 1 CR opens whenever either access door is opened. The
pump and conveyor hold-in circuit will not function until the doors are closed. This contact also
prevents the final rinse valve, FRV, from energizing and spraying hot water until the doors are
closed. This contact also will not allow any steam valve to energize when the doors are open.
This will lessen the chance that someone will get burned by a tank heater coil while cleaning the
machine.
53
Part 5:
BASIC SERVICE
5.3.21 Control Cabinet Fuse Replacement
Two fuse holders, located in the dishwasher remote control cabinet
protect the main control transformer. Each fuse block holds a 3 amp fuse.
The fuses are marked 1FU and 2FU on the schematic.
To replace a fuse: Turn off the power to the dishwasher at the main
service disconnect switch. Flip the tab on the top of the fuse holder to
open the holder. Remove the fuse and replace with a fuse of the same
amp rating. The picture to the right shows the fuse holder open and
the fuse exposed.
5.3.22 Motor Overload Adjustment and Replacement
Each motor has an overload to protect it from line voltage electrical overloads.
The overload disconnects 120VAC power to the motor contactor coil.
.
Refer to the picture to the right.
Note the Switch Lever on the Overload.
If the switch lever is off with the “0” showing
then the overload has tripped.
Switch Lever
To Reset the Motor Overload:
Flip the overload switch to the On position.
A “1” should be visible on the switch lever.
To Replace a Motor Overload:
Disconnect the wires to the overload.
Release the mounting catch on the front
side of the overload. Push forward and lift out.
Snap the new overload into place and reconnect
the wires.
To adjust the overload setting:
The screwdriver is positioned
to adjust the motor overload AMP setting.
Read the full load amps (FLA) motor amps on the motor nameplate.
Adjust the overload dial to match the nameplate FLA of the motor.
54
Part 5:
BASIC SERVICE
60 S
5.3 Component Repair and Replacement (Cont.)
UP
4
2
5.3.23 Timer Settings
There are adjustable cycle timers located in the dishwasher control cabinet. They are
designated WT and RT on the electrical schematic. The timers are 8 pin plug in modules
with two (3) user defined settings.
To set a timer: Hold the replacement timer with the timer dial facing up. Locate the
setting in the upper right corner of the timer. Turn the adjust screw to 60 S for (60
seconds). Flip the timer over to view the back and make sure the setting in the lower
left corner is set to 60 for 60 Hertz. Finally, turn the timer over to view the timer dial
again and set the timer dial to 5 for five seconds.
3
1
5
0
6
Omron
H2C
4
5
3
6
2
7
1
8
50
60
5.3.24 Control Cabinet Pilot Light Bulb
Replacement
There are two pilot lights on the front of the dishwasher control
cabinet. One indicates Power On; the other indicates either Low
Booster Temperature, or Reset Required. If the dishwasher is
equipped with a final rinse chemical sanitizing system then the
pilot light indicates Reset Required.
To replace an indicator bulb: Turn off the power at main service
disconnect switch. Open the control cabinet cover and locate the
desired pilot light assembly. Push the pilot light locking tab 1/4
turn in a clockwise direction as viewed from the front to release the
light assembly from its mounting socket. Remove the bulb by
turning it gently 1/2 turn in either direction. Install a replacement
bulb and reassemble in reverse order. Return the dishwasher to
normal operation.
55
Part 6: REPLACEMENT PARTS
THIS PAGE
INTENTIONALLY
LEFT BLANK
56
Part 6: REPLACEMENT PARTS
PART 6: REPLACEMENT PARTS
In This Part—
• Introduction
• Parts illustrations and replacement parts lists
6.1
Introduction
Part 6, Replacement Parts covers parts illustrations and parts lists for the major components of
your dishwasher. Parts lists are not provided for permanently assembled, (e.g. welded assemblies), items nor for items unsuited for field replacement.
Parts lists contain the current Champion part number or the abbreviation "Coml" which indicates
the part may be available locally or fabricated from raw materials onboard ship.
The "Coml" part number is primarily used for common pipe and pipe fittings.
6.2
Parts Procurement
All parts are available from:
The Source
502 Rotary Street
Hampton, VA 23661
You also can contact The Source by telephone or fax, Monday through Friday, except for holidays, from 8 a.m. Till 5 p.m EST:
Phone: (757) 825-1600
(800) 497-2144
Fax: (757) 825-1202
website: www.thesource2000.com
Email: Darlene [email protected]
Ed [email protected]
Kenny [email protected]
Larry [email protected]
57
29
24
4
7
6
5
30
2
1
25 8
22 21
23
19
20 18
17
16
1
3
1
3
28
27
26
2
9
1
10
25 8
11
12
34
35
Ch
ion
p
am
15
14
13
33
31 32
36
37
REPLACEMENT PARTS
30
Part 6:
Figure 6.1
Vents, Curtains, Doors, Panels,
Scrap screens, and Water level gauges
(R-L machine shown)
58
Part 6:
REPLACEMENT PARTS
VENTS, CURTAINS, DOORS, PANELS,
SCRAP SCREENS, AND WATER LEVEL GAUGES
(R-L MACHINE SHOWN)
Fig. 6.1
Item No.
1
2
3
4
5
6
7
8
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Part
No.
108250
108042
108043
323021
100735
106482
106026
317331
325351
200087
107970
107966
322712
108966
100779
106482
322839
100734
106482
10003
322763
322705
106727
104985
322770
110235
322901
322972
323241
107967
325344
111026
108954
104883
323432
323433
323431
323434
Part Description
Qty.
Rod, curtain (Beginning w/S# J1921, 1 additional rod added/ 3 prior) 4
Curtain, long ....................................................................................... 2
Curtain, short (Beginning w/S# J1921, 1 additional curtain added/ 1 prior) 2
Vent Assy. LH ..................................................................................... 1
Screw, 1/4-20 x 5/8" ........................................................................... 12
Washer, lock 1/4" ............................................................................... 12
Washer, flat 1/4" ................................................................................. 12
Feet, flanged (Prior to S/N J1588) .....................................................
8
Feet, flanged (After S/N J1589) .........................................................
8
Gauge, water level sight .....................................................................
2
Screw, 8-32 x 1" .................................................................................
8
Nut, lock 8-32 ..................................................................................... 8
Assy., lift-out door ..............................................................................
2
Handle, door ....................................................................................... 4
Screw, 1/4-20 x 5/8" ........................................................................... 8
Washer, lock 1/4" ...............................................................................
8
U-clip .................................................................................................. 1
Screw, 1/4-20 x 1/2" ........................................................................... 3
Washer, lock 1/4" ...............................................................................
3
Nut, 1/4-20 .........................................................................................
3
Screen, scrap ...................................................................................... 4
Bracket, screen support ...................................................................... 2
Screw, flat HD, 10-32 x 5/8" .............................................................. 8
Nut, hex 10-32 .................................................................................... 8
Vent Assy. RH (not shown) ................................................................ 1
Leg Assy. ............................................................................................
8
Cover, drive chain (R-L machine) ......................................................
1
Cover, drive chain (L-R machine) ......................................................
1
Bracket, offset .................................................................................... 1
Nut, lock 1/4-20 .................................................................................
2
Panel, end ...........................................................................................
2
Magnet, door safety ............................................................................
2
Nut, grip 6-32 ..................................................................................... 4
Screw, 6-32 round head ...................................................................... 4
Panel, wash tank (L-R machine) ........................................................
1
Panel rinse tank (R-L machine) .......................................................... 1
Panel, rinse tank (L-R machine) .........................................................
1
Panel, wash tank (R-L machine) ........................................................
1
59
14
6
1
19
17
1
3
13
12
11
18
10
15
16
10
9
2
8
12
11
15
16
10
10
9
2
8
7
1
4
5
17
18
Part 6: REPLACEMENT PARTS
Figure 6.2 Tank fill assembly and Temperature gauges
(R-L machine shown)
60
Part 6: REPLACEMENT PARTS
TANK FILL ASSEMBLY AND
TEMPERATURE GAUGES
(R-L MACHINE SHOWN)
Fig. 6.2
Item No.
Part
No.
Part Description
Qty.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
*15
*16
*16
17
18
19
107440
Coml
112088
112086
323240
112778
112777
201029
Coml
Coml
111779
Coml
325495
112803
100500
108349
113221
201041
100547
112090
Thermometer gauge flanged 8' capillary ............................................
Locknut, 1/2" NPT brass ....................................................................
Overlay, rinse 160° ............................................................................
Overlay, wash 150° ...........................................................................
Bracket, gauge, top mounted (single) ................................................
Label “rinse temp” .............................................................................
Label “wash temp” .............................................................................
Locknut, 1/2" NPT brass, nickel plated .............................................
Nipple, 1/2" NPT x 6-3/4" RTOE brass .............................................
Steel elbow, 1/2" NPT brass ...............................................................
Ball valve, 1/2" brass M x F ...............................................................
Nipple, close, 1/2" NPT brass ............................................................
Bracket, gauge, top mounted (double) ...............................................
Label, "final rinse" .............................................................................
Vacuum breaker, 1/2" brass ................................................................
Repair kit vacuum breaker, 1/2" (Prior to S/N J1533) (Bronze) ........
Repair kit vacuum breaker, 1/2" (After S/N J1534) (Plastic) ............
Washer, 7/8" ID x 1 3/16" ..................................................................
Locknut, 1/2" NPT, SST .....................................................................
Overlay, final rinse 180°F ..................................................................
2
2
1
1
1
1
1
2
2
4
2
2
1
1
2
2
2
3
3
1
--
900836
Kit* Repair, 1/4" and 1/2" Vacuum Breaker (Includes one each of
108349, 113219, 113221)
*
Kit 900836 was created to repair either style of vacuum breaker (bronze or plastic).
Plastic style are no longer available for the complet vacuum breakers, must replace
with the bronze style when replacing complete vacuum breaker.
61
62
Figure 6.3 Final rinse piping assembly
(R-L machine shown)
15
12
14
3
2
4
2
5
9
10
2
6
2
7
37
13
36
1
2
17
18 16
11
19
8
45
46
38
To
Incoming
Water Supply
20
20
2
24
23
22
21
25
27
26
27
28
29
27
30
31
30
27
41
30
42
40
39
32
41
35
34
33
43
44
44
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
FINAL RINSE PIPING ASSEMBLY
(R-L MACHINE SHOWN)
Fig. 6.3
Item No.
1
2
3
4
5
6
* 7
8
9
10
11
12
13
14
15
16
17
*18
*19
19
-20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
—
41
42
43
Part
No.
102522
Coml
Coml
Coml
Coml
Coml
104429
Coml
Coml
100123
100135
Coml
Coml
Coml
110855
111437
109903
108516
108351
113223
900837
102438
100209
102549
111287
104749
102412
107448
107315
112825
102388
108254
101265
102422
112109
100573
201669
Coml
112803
325495
108620
323233
323234
205421
106530
112022
Part Description
Qty.
Tee 3/4" SST ...................................................................................... 1
Nipple, close 3/4" NPT brass ............................................................. 6
Union, 3/4" brass ................................................................................ 1
Cross, 3/4" brass ................................................................................. 1
Tee, reducing 3/4" x 1/2" x 3/4" brass ................................................ 1
Tee, reducing 3/4" x 3/4" x 1/2" brass ............................................... 1
Vacuum brkr, 3/4" NPT (Bronze) .......................................................
1
Union copper, 3/4" NPT x 3/4" c .......................................................
1
Bushing reducing, 1/2" x 1/4" brass ................................................... 1
Petcock, 1/4" ...................................................................................... 1
Pressure gauge, 1/4" NPT O-60 ......................................................... 1
Plug, 3/4" NPT brass .......................................................................... 1
Bushing reducing, 3/4" x 1/2" brass ................................................... 1
Bushing reducing, 3/4" x 1/4" NPT brass ..........................................
1
Plug 1/4" NPT Plastic ......................................................................... 1
Valve, 3/4" Hot water 120VAC coil ................................................... 1
Kit , Repair .........................................................................................
1
Solenoid, 3/4" valve 120VAC ............................................................ 1
Repair kit vacuum brkr, 3/4" (Prior to S/N J1533) ............................ 1
Repair kit vacuum brkr, 3/4" (After S/N J1534) ................................
1
Kit*Repair, 3/4" Vacuum Breaker (Includes one each of 108351 & 113223)
Elbow Street 1/2" X 90° ..................................................................... 2
Nipple, close 1/2 NPT brass ............................................................... 2
Union, 1/2" NPT brass ....................................................................... 1
Nipple 1/2 NPT x 5-1/2" brass ........................................................... 1
Valve, ball 1/2" ................................................................................... 1
Coupling, 1/2" NPT brass ..................................................................
1
Adapter, 1/2" x 1/2" Copper ............................................................... 1
Tubing, copper 3/8" Type L ............................................................... A/R
Flow Control, 1GPM 1/2 NPT ........................................................... 1
Bushing, reducer 1/2" x 1/4" .............................................................. 1
Adapter, 3/8" x 1/4" NPT copper .......................................................
4
Union 1/4" NPT brass ........................................................................ 1
Elbow, 1/4 NPT x 90° brass ............................................................... 1
Nipple, RTOE 1/4" x 2-1/2" brass ......................................................
1
Locknut 1/4 NPT brass ....................................................................... 1
Locknut 1/4 NPT Nickel plate ........................................................... 1
Locknut, 3/4" NPT brass .................................................................... 1
Label, final rinse ................................................................................. 1
Bracket, gauge top mounted (double) ................................................ 1
Gasket final rinse ................................................................................ 1
Final rinse manifold (L-R machine) ................................................... 1
Final rinse manifold (R-L machine) ................................................... 1
Final rinse pipe, upper and lower .......................................................
2
Final rinse nozzle, upper .................................................................... 3
Final rinse nozzle, lower .................................................................... 3
63
Part 6: REPLACEMENT PARTS
FINAL RINSE PIPING ASSEMBLY
(R-L MACHINE SHOWN)
Fig. 6.3
Item No.
44
45
46
*
64
Part
No.
106734
107440
112090
Part Description
End cap, plastic ..................................................................................
Thermometer ......................................................................................
Overlay, final rinse 180°F ..................................................................
Qty.
2
1
1
Kit 900837 was created to repair either style of vacuum breaker (bronze or plastic).
Plastic style are no longer available for the complet vacuum breakers, must replace
with the bronze style when replacing complete vacuum breaker.
Part 6: REPLACEMENT PARTS
THIS PAGE
INTENTIONALLY
LEFT BLANK
65
6
6
3
3
10 11
2
8
9
3
7
1
3
9
1
7
9
9
3
2
3
5
4
9
9
Part 6: REPLACEMENT PARTS
Figure 6.4 Track Assembly
(R-L machine shown)
66
Part 6: REPLACEMENT PARTS
TRACK ASSEMBLY
(R-L MACHINE SHOWN)
Fig. 6.4
Item No.
1
322865
2
3
4
5
6
7
8
9
10
11
Part
No.
322866
322889
111296
104985
106482
100003
112318
322890
100141
100073
Part Description
Track ...................................................................................................
(RHR for R-L machine)
(LHF for R-L machine)
(RHF for L-R machine)
(LHR for L-R machine)
Track ...................................................................................................
(LHR for R-L machine)
(RHF for R-L machine)
(RHR for L-R machine)
(LHF for L-R machine)
Bracket, rear track ..............................................................................
Screw, undercut, 10-32 x 3/8" ............................................................
Nut, hex 10-32 ....................................................................................
Washer, lock 1/4" ...............................................................................
Nut, hex 1/4-20 ...................................................................................
Screw, 1/4-20 x 1/2" ...........................................................................
Bracket, front track .............................................................................
Nut, grip 1/4-20 ..................................................................................
Screw, 1/4-20 x 1/2" ...........................................................................
Qty.
2
2
6
24
24
24
24
12
6
8
8
67
12 13
10 11
Figure 6.5 Conveyor shafts, chains, bearings, and guides
(For machines built prior to S/N J1050)
68
10 12
11 13
9
15
14
3
14
15
16
6
8
1
2
4
9
1
7
2
5
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
CONVEYOR SHAFTS, CHAINS, BEARINGS, AND GUIDES
(For machines built prior to S/N J1050)
Fig. 6.5
Item No.
Part
No.
Part Description
Qty.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
*16
106354
107245
322988
322987
112775
112774
112610
112611
112597
111201
100143
104618
106407
900841
112599
112708
Guide, delrin .......................................................................................
Pin, roll 1/8" SST ...............................................................................
Bracket, chain guide rear ....................................................................
Bracket, chain guide front ..................................................................
Shaft, take-up .....................................................................................
Shaft, drive .........................................................................................
Chain, rear w/lugs ..............................................................................
Chain, front ........................................................................................
Sprocket, conveyor 1" bore w/set screw ............................................
Screw, 3/8-16 x 1 1/4" ........................................................................
Screw, 3/8-16 ......................................................................................
Washer, flat 3/8" .................................................................................
Washer, lock 3/8" ...............................................................................
Kit*Bearing/Sleeve USN72 ...............................................................
Housing, bearing ................................................................................
Seal, ....................................................................................................
2
4
1
1
1
1
1
1
4
8
8
8
8
2
2
1
—
—
113192
113193
Master Link (not shown) ....................................................................
Offset Link (not shown) .....................................................................
2
2
*
When replacing the seal in the bearing flange you must order the kit 900840 (which includes
112599 Housing, Bearing and 113509 Seal). The new style seal will not work in the old
housing. Parts may be ordered individually after the initial replacement.
69
Part 6:
REPLACEMENT PARTS
7
5
17
9
12 13
10 11
17
17
15
14
8
6
9
17
20
20
14
15
16
10 12
11 13
18
20
24
20
21
22
23
29
25
19
23
24
26
20
19
20
18
26
29
22
26
21
27 28
26
26
Figure 6.5a Conveyor shafts, chains, bearings, and guides
(For machines beginning with S/N J1050 and above)
68a
2
26
Part 6:
REPLACEMENT PARTS
CONVEYOR SHAFTS, CHAINS, BEARINGS, AND GUIDES
(For machines beginning with S/N J1050 and above)
Fig. 6.5a
Item No.
Part
No.
Part Description
Qty.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
106354
107245
322988
322987
113180
112774
112610
112611
112597
111201
100143
104618
106407
113182
112599
113509
113181
Guide, delrin .......................................................................................
Pin, roll 1/8" SST ...............................................................................
Bracket, chain guide rear ....................................................................
Bracket, chain guide front ..................................................................
Shaft, take-up .....................................................................................
Shaft, drive .........................................................................................
Chain, rear w/lugs ..............................................................................
Chain, front ........................................................................................
Sprocket, conveyor 1" bore w/set screw ............................................
Screw, 3/8-16 x 1 1/4" ........................................................................
Screw, 3/8-16 ......................................................................................
Washer, flat 3/8" .................................................................................
Washer, lock 3/8" ...............................................................................
Bearing ...............................................................................................
Housing, bearing ................................................................................
Seal .....................................................................................................
Sleeve, 1" SST ....................................................................................
2
4
1
1
1
1
1
1
4
8
8
8
8
4
4
1
4
—
—
113192
113193
Master Link (not shown) ....................................................................
Offset Link (not shown) .....................................................................
2
2
18
322865
2
19
322866
20
21
22
23
24
25
26
27
28
29
322889
111296
104985
106482
100003
112318
322890
100141
100073
113212
Track ...................................................................................................
(RHR for R-L machine)
(LHF for R-L machine)
(RHF for L-R machine)
(LHR for L-R machine)
Track ...................................................................................................
(LHR for R-L machine)
(RHF for R-L machine)
(RHR for L-R machine)
(LHF for L-R machine)
Bracket, rear track ..............................................................................
Screw, undercut, 10-32 x 3/8" ............................................................
Nut, hex 10-32 ....................................................................................
Washer, lock 1/4" ...............................................................................
Nut, hex 1/4-20 ...................................................................................
Screw, 1/4-20 x 1/2" ...........................................................................
Bracket, front track .............................................................................
Nut, grip 1/4-20 ..................................................................................
Screw, 1/4-20 x 1/2" ...........................................................................
Strip, guide .........................................................................................
2
6
44
44
24
24
12
6
8
8
4
69a
3
Part 6: REPLACEMENT PARTS
5
6
7
5
6
8
7
2
3
4
2
1
9
10
11
Figure 6.6 Conveyor chain take-up assembly
(For machines built prior to S/N J1050)
70
12
13 14
Part 6: REPLACEMENT PARTS
CONVEYOR CHAIN TAKE-UP ASSEMBLY
(For machines built prior to S/N J1050)
Fig. 6.6
Item No.
1
2
3
4
5
5
**6
--7
8
9
10
11
12
13
14
Part
No.
309397
107691
111082
323052
112707
112599
112598
900841
309386
323231
100739
106013
109009
107967
112318
100003
Part Description
Rod, 5/8-11 x 6" .................................................................................
Nut, 5/8-11 hex hd ..............................................................................
Pin, roll, 3/16" x 7/8" .........................................................................
Adaptor, take-up bearing ....................................................................
Housing, bearing ................................................................................
Housing, bearing (effective 2/23/2000) .............................................
Bearing ...............................................................................................
Kit*Bearing/Sleeve USN72 ...............................................................
Track, take-up bearing ........................................................................
Housing, take-up ................................................................................
Screw, 5/16-18 x 3/4" .........................................................................
Washer, lock 5/16" .............................................................................
Nut, lock 5/16-18 ...............................................................................
Nut, lock 1/4-20 .................................................................................
Screw, 1/4-20 hex hd ..........................................................................
Nut, hex 1/4-20 ...................................................................................
Qty.
2
6
4
2
2
2
2
2
2
1
4
4
4
8
4
4
**
Effective 2/23/00 part number 112598 has been replaced by 900841 Kit*Bearing/
Sleeve. These bearings and sleeves will fit in housing part number 112707.
If part number 112707 needs to be replaced then we suggest you use the following:
---
900838
Kit* bearing replacement (includes items 5 and item 6).
71
REPLACEMENT PARTS
4
5
3
12
8
12
9
13
4
6
7 5
3 2
4
(For S/N J1050 Only)
(For S/N J1051 and above)
Figure 6.6a Conveyor chain take-up assembly
(For machines beginning with S/N J1050 and above)
470a
10
11
9
10
11
9
12
1
9
8
12
9
9
2
4
7
6
Part 6:
Part 6:
REPLACEMENT PARTS
CONVEYOR CHAIN TAKE-UP ASSEMBLY
(For machines beginning with S/N J1050 and above)
Fig. 6.6a
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Part
No.
325374
324328
325376
100754
100735
106026
106482
205971
113014
325373
205969
205970
325567
Part Description
Chain tensioner...................................................................................
Support, rear chain tensioner ..............................................................
Support, front chain tensioner ............................................................
Screw (10-32 x 1/2”), slot flat ............................................................
Screw (1/4-20 x 3/4”), hex cap ..........................................................
Washer, flat .........................................................................................
Washer, lock .......................................................................................
Sprocket, chain tensioner ...................................................................
Bolt (3/8-16 x 1.5”), shoulder with hex socket ..................................
Shim, tensioner ...................................................................................
T-nut (5/16-18) ...................................................................................
Roller, chain tensioner ........................................................................
Bracket, chain tensioner (Single Piece construction) .........................
Qty.
2
2
2
8
8
8
8
2
6
2
2
4
1
71a5
Part 6: REPLACEMENT PARTS
24
34
26
27
4
28
29
3
2
1
9
10
18 17
20 19
22
23
30
21
25
18 17
20 19
32
33
16
15
10
12 13
14
9
11
8 9
10
Figure 6.7 Conveyor drive assembly
72
5 6
31
7
Part 6: REPLACEMENT PARTS
CONVEYOR DRIVE ASSEMBLY
Fig. 6.7
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Part
No.
322737
100073
100141
106026
100153
100143
322736
111095
100141
106482
112709
100352
0508751
107966
100738
112701
100740
102376
106013
100154
112713
112603
112604
112784
103162
110164
100791
100795
112590
113398
113399
112609
108147
322898
–
101149
112785
113397
110164
112783
104915
325344
Part Description
Qty.
Bracket, drive base .............................................................................
1
Screw, 1/4-20 x 1/2" ........................................................................... 4
Nut, grip, 1/4-20 ................................................................................. 4
Washer, flat 1/4" ................................................................................. 4
Bolt, 3/8-16 x 1" hex hd ..................................................................... 2
Nut, grip 3/8-16 .................................................................................. 2
Base, drive ..........................................................................................
1
Eyebolt, 1/4-20 x 1" ........................................................................... 1
Nut, 1/4-20 hex hd ..............................................................................
6
Washer, lock 1/4" ...............................................................................
5
Spring, extension ................................................................................ 1
Switch, micro ..................................................................................... 1
Screw, 10-32 x 1 1/2" ......................................................................... 2
Nut, lock 10-32 ................................................................................... 2
Bolt, 1/4-20 x 1" ................................................................................. 2
Bracket, switch ................................................................................... 1
Screw, 5/16-18 x 1" ............................................................................ 10
Washer, flat 5/16" ............................................................................... 10
Washer, lock 5/16" .............................................................................
6
Nut, 5/16-18 hex hd ............................................................................
6
Sheave, reducer 250RPH ...................................................................
1
Sheave, reducer 185RPH ...................................................................
1
Sheave, reducer 135 RPH ..................................................................
1
Sheave, reducer 85/60 RPH ............................................................... 1
Sheave, motor 250/185/135/85 RPH .................................................. 1
Sheave, motor 60 RPH ....................................................................... 1
V-belt, 4L280 ..................................................................................... 1
V-belt, 4L320 ..................................................................................... 1
Motor, drive 1/4 hp 440V/60/3ph ......................................................
1
Reducer, gear (L-R machine) ............................................................. 1
Reducer, gear (R-L machine) ............................................................. 1
Sprocket, drive ................................................................................... 1
Key, 1/4" x 1/4" x 1 1/4" .................................................................... 1
Guard, belt (R-L machine) .................................................................
1
Guard, belt (L-R machine) .................................................................
1
Link, Master #50 ................................................................................ 1
Chain, #50 .......................................................................................... A/R
Sprocket, reducer 250/185/135 RPH .................................................. 1
Sprocket, reducer 85 RPH ..................................................................
1
Sprocket, reducer 60 RPH ..................................................................
1
Key, 3/16" x 3/16" x 1 1/4" ................................................................ 1
Panel, louvered end ............................................................................
1
73
Part 6: REPLACEMENT PARTS
8
7
4
1 2
6
3
5
2
4
9
10
12
11
2
Figure 6.8 Rinse saver assembly
74
Part 6: REPLACEMENT PARTS
RINSE SAVER ASSEMBLY
Fig. 6.8
Item No.
Part
No.
1
2
3
4
5
6
7
8
9
10
11
12
106382
108954
111026
107967
322920-2
322920-1
106472
322919
322891
322892
100007
112659
Part Description
Screw, 6-32 x 3/8" .............................................................................
Nut, 6-32 ...........................................................................................
Magnet ...............................................................................................
Nut, lock 1/4-20 ................................................................................
Side, rinse paddle bracket .................................................................
Side, rinse paddle bracket .................................................................
Screw, 1/4-20 x 1 1/4" .......................................................................
Paddle, rinse assembly ......................................................................
Box, switch ........................................................................................
Cover, switch box ..............................................................................
Screw, 10-32 x 3/8" ...........................................................................
Switch, magnetic reed .......................................................................
Qty.
2
8
1
5
1
1
1
1
1
1
1
1
75
Part 6: REPLACEMENT PARTS
3
2
1
8
7
6
5
4
10
9
k
n
Ta
4
Figure 6.9Steam coil assembly
76
Part 6: REPLACEMENT PARTS
STEAM COIL ASSEMBLY
Fig. 6.9
Item No.
1
2
3
4
5
6
7
8
9
10
Part
No.
323235
B2850-1
B2850-2
108345
100740
102376
106013
100154
109683
112257
Part Description
Coil steam (1 per tank) .......................................................................
Bracket, coil .......................................................................................
Bracket, coil .......................................................................................
Gasket (2 per coil) ..............................................................................
Bolt, 5/16-18 x 1" ...............................................................................
Washer, flat 5/16" ...............................................................................
Washer, lock 5/16" .............................................................................
Nut, 5/16-18 hex hd ............................................................................
Plate, block-off ...................................................................................
O-ring .................................................................................................
Qty.
1
1
1
2
24
48
24
24
2
2
77
REPLACEMENT PARTS
12
12
6
30
21
22
18
19
10
20
10
11
11
17
16
7
10
11
9
29
23
24
7
8
Figure 6.9aElectric Tank Heat
(For machines beginning with S/N J1050 and above)
676a
12
6
4
13
5
12
27
15
13
7
26
28
14
2
13
6
25
13
2
3
1
2
Part 6:
Part 6:
REPLACEMENT PARTS
ELECTRIC TANK HEAT
(For machines beginning with S/N J1050 and above)
Fig. 6.9a
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Part
No.
317165
106460
317166
107033
107967
107846
108345
109638
112257
100740
102376
106013
100154
109069
201041
109034
100547
111092
111151
110750
107589
104584
323428
323427
323429
323430
110561
109069
106382
108954
Part Description
Cover, heater box, metal ....................................................................
Screw (6-32 x 1/4”) ............................................................................
Heater box, metal ...............................................................................
Washer, flat .........................................................................................
Nut (1/4-20), grip with nylon insert ...................................................
Heater Element-10KW (480V) ..........................................................
Gasket, heater .....................................................................................
Flange, blockoff .................................................................................
O-ring .................................................................................................
Bolt (5/16-18 x 1”), hex cap ...............................................................
Washer, flat (5/16”) ............................................................................
Washer, lock (5/16”) medium split .....................................................
Nut (5/16-18), hex finish ....................................................................
Thermostat, with capillary .................................................................
Washer, flat (7/8" ID x 1/8") ..............................................................
Gasket (1/2 NPT) plug .......................................................................
Locknut (1 1/2 NPT) ..........................................................................
Switch, float .......................................................................................
C-clip ..................................................................................................
Gasket, float switch ............................................................................
Washer, lock (1/2") .............................................................................
Nut, plain (1/2-13) ..............................................................................
Wireway box, right side .....................................................................
Wireway box, left side .......................................................................
Wireway cover ...................................................................................
Thermostat, shelf bracket ...................................................................
Thermostat, high limit with reset .......................................................
Thermostat, with capillary .................................................................
Screw (6-32 x 3/8”), slot truss ............................................................
Nut (6-32), with nylon insert ..............................................................
Qty.
2
8
2
16
16
5
5
1
1
24
48
24
24
1
1
1
1
1
2
1
1
1
1
1
2
2
2
2
4
4
77a7
REPLACEMENT PARTS
12
6
30
29
21
22
18
19
10
20
10
11
11
17
16
7
10
11
9
24
23
7
8
Figure 6.9bElectric Tank Heat
(For machines beginning with S/N J1872 and above)
8
76b
32
12
6
4
13
5
12
27
15
13
7
26
28
14
2
13
32
6
12
25
13
2
3
1
2
Part 6:
Part 6:
REPLACEMENT PARTS
ELECTRIC TANK HEAT
(For machines beginning with S/N J1872 and above)
Fig. 6.9a
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Part
No.
317165
106460
317166
107033
107967
107846
108345
109638
112257
100740
102376
106013
100154
109069
201041
109034
100547
111092
111151
110750
107589
104584
323428
323427
323429
323430
110561
109069
106382
108954
111833
Part Description
Cover, heater box, metal ....................................................................
Screw (6-32 x 1/4”) ............................................................................
Heater box, metal ...............................................................................
Washer, flat .........................................................................................
Nut (1/4-20), grip with nylon insert ...................................................
Heater Element-10KW (480V) ..........................................................
Gasket, heater .....................................................................................
Flange, blockoff .................................................................................
O-ring .................................................................................................
Bolt (5/16-18 x 1”), hex cap ...............................................................
Washer, flat (5/16”) ............................................................................
Washer, lock (5/16”) medium split .....................................................
Nut (5/16-18), hex finish ....................................................................
Thermostat, with capillary .................................................................
Washer, flat (7/8" ID x 1/8") ..............................................................
Gasket (1/2 NPT) plug .......................................................................
Locknut (1 1/2 NPT) ..........................................................................
Switch, float .......................................................................................
C-clip ..................................................................................................
Gasket, float switch ............................................................................
Washer, lock (1/2") .............................................................................
Nut, plain (1/2-13) ..............................................................................
Wireway box, right side .....................................................................
Wireway box, left side .......................................................................
Wireway cover ...................................................................................
Thermostat, shelf bracket ...................................................................
Thermostat, high limit with reset .......................................................
Thermostat, with capillary .................................................................
Screw (6-32 x 3/8”), slot truss ............................................................
Nut (6-32), with nylon insert ..............................................................
Terminal strip .....................................................................................
Terminal block 185amp 3pole ............................................................
Qty.
2
8
2
16
16
5
5
1
1
24
48
24
24
1
1
1
1
1
2
1
1
1
1
1
2
2
2
2
4
4
1
1
9
77b
1
78
33
31
3
2
4
32
5
6
7
Figure 6.10 Tank steam piping with booster
(R-L machine shown)
17
30
28
27
22
13
23
35
8
12
11
34
29
34
4
2
10
9
24
10
21
26 25
2
4
13
23 22
12
11
35
21 20
14
10
19
18
17
16
15
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
TANK STEAM PIPING WITH BOOSTER
(R-L MACHINE SHOWN)
Fig. 6.10
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Part
No.
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
109887
109903
Coml
Coml
109683
112257
Coml
Coml
Coml
Coml
Coml
Coml
111380
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
108516
Part Description
Nipple, 3/4 NPT x 16, black iron .......................................................
Elbow, 3/4" NPT, BI ...........................................................................
Nipple, 3/4" NPT x 7 1/2", BI ............................................................
Street elbow, 3/4" NPT, BI .................................................................
Tee, 3/4" NPT, BI ...............................................................................
Nipple, 3/4" NPT x 5", BI ..................................................................
Union elbow, 3/4" NPT , female, BI ..................................................
Nipple, 3/4" NPT x 10 1/2", BI ..........................................................
Nipple, 3/4" NPT x 5", BI ..................................................................
Nipple, close, 3/4" NPT, BI ................................................................
Valve solenoid steam 3/4" NPT ........................................................
Repair kit steam valve, 3/4" ...............................................................
Union elbow, 3/4" NPT, male, BI ......................................................
Bushing, reducing, 3/4" x 1/2", BI .....................................................
Flange block off .................................................................................
O-ring .................................................................................................
Street elbow, 1/2" NPT, BI .................................................................
Nipple, close, 1/2" NPT, BI ................................................................
Elbow, 45°, 1/2", BI ...........................................................................
Nipple, 1/2" x 2", BI ..........................................................................
Union, 1/2" NPT, BI ...........................................................................
Nipple, close, 1/2", BI ........................................................................
Steam trap, thermodynamic 1/2" SST ................................................
Nipple, 3/4" x 2", BI ..........................................................................
Elbow reducing, 3/4" x 1/2", 90°, BI .................................................
Nipple, 1/2" NPT x 4" long, BI ..........................................................
Nipple, 1/2" NPT x 19" long, BI ........................................................
Nipple, 1/2" NPT x 10 1/4" long, BI ..................................................
Union elbow, female, 1/2" NPT, BI ...................................................
Nipple, 1/2" NPT x 3 3/4", BI ............................................................
Nipple, 1/2" NPT x 5 1/2", BI ............................................................
Tee reducing, 3/4" x 1/2" x 1/2", BI ...................................................
Nipple, 3/4" NPT x 12" long, BI ........................................................
Union, 3/4" NPT, BI ...........................................................................
Coil, solenoid valve, 3/4" 120v ..........................................................
Qty.
1
3
1
3
1
1
1
1
1
5
2
2
1
2
2
2
1
1
1
2
2
2
1
1
1
1
1
2
1
1
1
1
1
1
79
80
18
17
19
15
16
20 21
14
10
11
22 23
13
37
12
4
2
21
25 26
24
10
10
4
2
9
18
13
23
27
35
Figure 6.11 Tank steam piping with booster
(L-R machine shown)
30
29
35
28
37
12
11
8
17
32
5
6
7
36
33
31
35
2
34
3
2
1
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
TANK STEAM PIPING WITH BOOSTER
(L-R MACHINE SHOWN)
Fig. 6.11
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Part
No.
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
109887
109903
Coml
Coml
109683
112257
Coml
Coml
Coml
Coml
Coml
Coml
111380
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
108516
Part Description
Nipple, 3/4" NPT x 8-1/2" long, BI ...................................................
Elbow, 3/4" NPT, BI ...........................................................................
Nipple, 3/4"NPT x 8-1/2" long, BI ....................................................
Street ell, 3/4" NPT, BI ......................................................................
Tee, 3/4" NPT, BI ...............................................................................
Nipple, 3/4" NPT x 5" long, BI ..........................................................
Union ell, female, 3/4" NPT, BI .........................................................
Nipple, 3/4" NPT x 9-1/4" long, BI ...................................................
Nipple, 3/4" NPT x 5" long, BI ..........................................................
Nipple close, 3/4" NPT, BI .................................................................
Valve solenoid steam, 3/4" NPT ........................................................
Repair kit steam valve, 3/4" ...............................................................
Union ell, male, 3/4" NPT, BI ............................................................
Bushing reducing, 3/4" x 1/2" NPT, BI ..............................................
Flange, blockoff .................................................................................
O-ring, flange blockoff .......................................................................
Street ell, 1/2" NPT, BI ......................................................................
Nipple close, 1/2" NPT, BI .................................................................
Elbow, 45°, 1/2" NPT, BI ...................................................................
Nipple close, 1/2" NPT, BI .................................................................
Union, 1/2" NPT, BI ...........................................................................
Nipple, 1/2" NPT x 4" lg., BI .............................................................
Steam trap, thermodynamic, 1/2" NPT, SST ......................................
Nipple close, 3/4" NPT, BI .................................................................
Elbow reducing, 3/4" x 1/2" NPT, BI .................................................
Nipple close, 1/2", BI .........................................................................
Nipple, 1/2" NPT x 13-3/4" lg., BI ....................................................
Nipple, 1/2" NPT x 9" lg., BI .............................................................
Union ell, female, 1/2", BI .................................................................
Nipple, 1/2" NPT x 4-3/4" lg., BI ......................................................
Nipple, 1/2" NPT x 5-3/4" lg., BI ......................................................
Tee reducing, 3/4" x 1/2" x 1/2" NPT, BI ...........................................
Nipple, 3/4" NPT x 12" lg., BI ...........................................................
Nipple, 3/4" NPT x 7-1/2" lg., BI ......................................................
Union, 3/4", BI ...................................................................................
Nipple, 3/4" x 23" lg., BI ...................................................................
Coil, solenoid valve, 3/4" 120V .........................................................
Qty.
1
4
1
2
1
1
1
1
1
5
2
2
1
2
2
2
1
1
1
2
1
2
1
1
1
1
1
2
1
1
1
1
1
1
1
1
81
5
14
2
13
C
4
6
3
A
12
11
C
B
C
9
B
10
A
1
6
8
3
B
6
6
3
7
4
5
A
15
12
6
16
4
5
Part 6: REPLACEMENT PARTS
Figure 6.12 Junction boxes, Float switches, Door switches, and Thermostats
(Prior to S/N J1871)
82
Part 6: REPLACEMENT PARTS
JUNCTION BOXES, FLOAT SWITCHES,
DOOR SWITCHES AND THERMOSTATS
(PRIOR TO S/N J1871)
Fig. 6.12
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Part
No.
100321
100309
322891
322892
100007
108954
112659
109069
111092
111151
100094
104889
107589
104584
201041
100547
Part Description
Box, electrical, 806 Hoffman .............................................................
Box, electrical, 404 Hoffman .............................................................
Box, switch .........................................................................................
Cover, switch box ...............................................................................
Screw, 10-32 x 3/8" ............................................................................
Nut, 6-32 ............................................................................................
Switch, magnetic reed ........................................................................
Thermostat, 110-200°F.......................................................................
Switch, float .......................................................................................
C-clip, float switch .............................................................................
Washer, flat. 1/2" ................................................................................
Putty, sealing compound 440 .............................................................
Washer, lock, 1/2" ..............................................................................
Nut, plain, 1/2"-13 Hex hd .................................................................
Washer, 7/8" ID x 1/8" ThK ...............................................................
Locknut, 1/2" SST ..............................................................................
Qty.
1
1
6
6
6
32
2
2
2
4
2
2
2
2
2
2
83
REPLACEMENT PARTS
C
9
4
5
14
13
C
6
3
12
B
11
A
2
C
B
A
10
1
8
B
6
7
A
Top of Junction Box
15
12
6
16
Top of Junction Box
Part 6:
Figure 6.12aJunction boxes, Float switches, Door switches, and Thermostats
(For machines beginning with S/N J1872 and above)
10
82a
Part 6:
REPLACEMENT PARTS
JUNCTION BOXES, FLOAT SWITCHES,
DOOR SWITCHES AND THERMOSTATS
(BEGINNING WITH S/N J1872 AND ABOVE)
Fig. 6.12a
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Part
No.
322891
322892
100007
108954
112659
109069
111092
111151
100094
104889
107589
104584
201041
100547
Part Description
Box, electrical, 806 HoffmanWash ....................................................
Box, electrical, 404 Hoffman Rinse ...................................................
Box, switch .........................................................................................
Cover, switch box ...............................................................................
Screw, 10-32 x 3/8" ............................................................................
Nut, 6-32 ............................................................................................
Switch, magnetic reed ........................................................................
Thermostat, 110-200°F.......................................................................
Switch, float .......................................................................................
C-clip, float switch .............................................................................
Washer, flat. 1/2" ................................................................................
Putty, sealing compound 440 .............................................................
Washer, lock, 1/2" ..............................................................................
Nut, plain, 1/2"-13 Hex hd .................................................................
Washer, 7/8" ID x 1/8" ThK ...............................................................
Locknut, 1/2" SST ..............................................................................
Qty.
1
1
6
6
6
32
2
2
2
4
2
2
2
2
2
2
11
83a
84
2
Figure 6.13 Pump assembly
5
4
8
1
2
10
6
3
7
9
14
12
11
17
22
16
15
13
34
18
21
5
20
4
24
25
19
35
26
27
23
36
29
3
30
1
24
28
31
24
37
25
32
33
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
PUMP ASSEMBLY
Fig. 6.13
Item No.
Part
No.
Part Description
Qty.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
--29
30
31
32
33
34
35
36
37
100740
104619
102376
106013
100154
112591
110734
100754
109654
110270
204460
106407
107690
111681
111111
111941
111942
111943
111756
111696
112801
111964
102500
106482
100736
102504
111725
112379
112338
110248
110247
100734
112800
104203
307995
109568
319743
319742
Bolt, 5/16-18 x 1" Hex hd ..................................................................
Washer, flat .........................................................................................
Washer, flat, 5/16" ..............................................................................
Washer, lock, 5/16" ............................................................................
Nut, 5/16-18 Hex hd ...........................................................................
Motor, pump 2HP MV/60/3 ...............................................................
Stud, motor .........................................................................................
Screw, 10-32 x 1/2" flat hd .................................................................
Slinger, water .....................................................................................
Washer, star countersunk ....................................................................
Plate, backing .....................................................................................
Washer, lock .......................................................................................
Nut, jam, 3/8-16 .................................................................................
Flange, pump ......................................................................................
Seal, pump ..........................................................................................
Gasket (.0085") (1 notch) ...................................................................
Gasket (.015") (2 notches) .................................................................
Gasket (.032") (3 notches) .................................................................
Impeller, 2HP SST..............................................................................
Volute, pump ......................................................................................
Hose, pump discharge ........................................................................
Clamp, hose ........................................................................................
Plug, 1/4" NPT, Brass .........................................................................
Washer, lock, 1/4" ..............................................................................
Bolt, 1/4-20 x 3/4" Hex hd .................................................................
Plug, 1/2" NPT, Brass .........................................................................
O-ring .................................................................................................
Flange, suction machined (Replaces 111841) ...................................
Gasket Pump, Suction flange (Not Shown) .......................................
Washer, flat .........................................................................................
Nut, jam, 7/16-20 Hex hd ...................................................................
Bolt, 1/4-20 x 1/2" Hex hd .................................................................
Hose, pump suction ............................................................................
Clamp, hose ........................................................................................
Flange, suction ...................................................................................
Gasket, pump suction .........................................................................
Plate, pump suction ............................................................................
Hood, pump suction ...........................................................................
12
16
12
12
12
1
4
3
1
3
1
4
4
1
1
2
1
2
1
1
1
2
2
11
10
1
1
1
1
1
1
1
1
2
1
1
1
1
—
452331
Pump/Motor assy. Complete LH ........................................................
(Wash for R-L machine)
(Rinse for L-R machine)
1
—
452332
Pump/Motor assy. Complete RH ........................................................
(Wash for R-L machine)
(Rinse for L-R machine)
1
—
410269
Pump assy. Complete (Includes items 7-20, 23-31) ...........................
1
—
900737
Gasket kit (Includes items 16-18) ......................................................
–
—
900184
Seal/Impeller kit (Includes 15-19) .....................................................
–
85
86
Figure 6.14 Wash spray system
(R-L machine shown)
14
4
5
19
2
6
11
1
10
9
17
12
9 10
11
12 6
13
15
3
6
18
18
11
10
9
17
6
12
2
6
1
7
8
16
6
13 14
9 10
11 12
6
19
20
22
21
23
24
25
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
WASH SPRAY SYSTEM
(R-L MACHINE SHOWN)
Fig. 6.14
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Part
No.
106482
100736
313212
100073
100141
111456
316772
316773
100739
102376
106013
100154
112802
111964
323238
323239
317240
410697
322983
111505
111454
111478
321471
104414
112240
Part Description
Washer, lock, 1/4" ..............................................................................
Bolt, 1/4-20 x 3/4" Hex hd .................................................................
Bracket, standpipe ..............................................................................
Screw, 1/4-20 x 1/2" ...........................................................................
Nut, grip, 1/4-20 .................................................................................
Gasket, manifold ................................................................................
Plate, restrictor ...................................................................................
Slide, restrictor ...................................................................................
Bolt, 5/16-18 x 3/4" Hex hd ...............................................................
Washer, flat, 5/16" ..............................................................................
Washer, lock, 5/16" ............................................................................
Nut, plain, 5/16-18 Hex hd .................................................................
Hose, connecting ................................................................................
Clamp, hose ........................................................................................
LH side tube .......................................................................................
RH side tube .......................................................................................
Manifold, 4-hole .................................................................................
Manifold, 5-hole w/restrictor .............................................................
Standpipe ............................................................................................
O-ring, spraypipe ................................................................................
Plate, locking ......................................................................................
Bolt, locking plate, 10-32 x 1/2" ........................................................
Spraypipe, debossed ...........................................................................
O-ring, end plug .................................................................................
Plug, debossed spraypipe ...................................................................
Qty.
16
16
2
4
4
10
2
2
16
16
16
16
2
4
1
1
2
2
2
18
18
56
18
18
18
87
88
Figure 6.15 Drain and overflow assembly
12
11
1
15
7
2
6
9
LEFT SIDE VIEW
1
19
20
21
15
16
22
4
2
5
18
14
17
1
8
12
6
13
TOP VIEW
10
9
3
1
11
7
24
25
26
23
19
20
17
16 18
25
24
Part 6: REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
DRAIN AND OVERFLOW ASSEMBLY
Fig. 6.15
Item No.
Part
No.
Part Description
Qty.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
112287
111353
109110
102505
109062
109072
113297
109111
206139
202819
206137
206136
206138
205598
109479
100739
106013
102376
108345
202191
304816
107967
323237
107136
104985
B2857
Tee 1-1/2" copper, solder connect ......................................................
Elbow, 1-1/2" copper, solder connect .................................................
Elbow 1-1/2" copper x 1-1/2" FTG ....................................................
Plug 3/4" brass ...................................................................................
Adapter, 3/4" FTG, x 3/4" FPT copper ..............................................
Valve, ball 1-1/2" solder .....................................................................
Adapter, 1-1/2" x FPT x 1-1/2" FTG copper ......................................
Tee reducer 1-1/2" x 3/4" x 1-1/2" copper .........................................
Flange, drain USN72 mod ..................................................................
Tube 1-1/2" x 2-3/4" copper ...............................................................
Tube 1-1/2" x 13-5/8" copper .............................................................
Tube 1-1/2" x 8-3/8" copper ...............................................................
Tube 1-1/2" x 7-1/2" copper ...............................................................
Tube 1-1/2" x 4-7/16" copper .............................................................
Union 1-1/2 copper, solder connect ...................................................
Bolt, 5/16-18 x 3/4" Hex hd ...............................................................
Washer, lock, 5/16" ............................................................................
Washer, flat, 5/16" ..............................................................................
Gasket .................................................................................................
Flange, drain .......................................................................................
Screen, drain .......................................................................................
Nut, grip, 1/4-20 .................................................................................
Assembly, overflow ............................................................................
Bolt, 10-32 x 3/8" Hex hd ..................................................................
Nut, 10-32 ..........................................................................................
Cover assy. .........................................................................................
2
1
1
1
1
1
3
1
2
1
1
1
1
1
1
16
16
16
4
4
2
2
2
4
4
2
—
325218
Assembly, drain ..................................................................................
2
89
90
Figure 6.16 No. 260 Steam booster and Steam piping assembly
(R-L installation shown)
Control
Thermostat
10
11
18
14
13
60
17
15
11
11
23
24
25
26
19
12
11
10
11
17
6
11
23
28
12
22
16
27
20
8
7
9
3
11
31
29
32
36 35
4
21
5
i
To f
e
nrs
nali
am
Ste
in
30
33
34
37
38
34
2
55
53
23
out
46 45
te
nsa
nde
Co
50
51
47
48
r in
ate
W
49
40
34
39
1
44
41
54
56
52
43
out
42
am
Ste
59
54
59
58
57
Part 6:
REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
NO. 260 STEAM BOOSTER AND STEAM PIPING ASSEMBLY
(R-L INSTALLATION SHOWN)
Fig. 6.16
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Part
No.
112309
101249
110005
110007
110120
Coml
109887
109903
108516
100128
Coml
Coml
104649
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
Coml
100309
107550
110768
104828
100983
107500
100979
105847
105733
105851
112358
100123
110196
Coml
Coml
Coml
Coml
Coml
111380
Coml
Coml
Coml
Coml
105811
112341
322813
Coml
Coml
Coml
325878
325881
325880
100007
109069
Part Description
Steam booster, #260 custom ..........................................................................
Line strainer, 1-1/2" BI (105749 plug, 3/4" BI not shown) ...........................
Valve, solenoid, steam 1" NPT Asco ............................................................
Repair kit steam valve, 1" NPT Asco ............................................................
Coil, solenoid valve, 1" 120v ........................................................................
Union, sweat, 3/4" NPT x 3/4" C ..................................................................
Valve, hot water, 3/4" NPT ...........................................................................
Repair kit, hot water valve, 3/4" NPT ...........................................................
Coil, solenoid valve, 3/4", 120v ....................................................................
Thermostat, female ........................................................................................
Nipple, close, 3/4" NPT, Brass ......................................................................
Union, 3/4" NPT, Brass .................................................................................
Relief valve, 3/4" NPT, 125psi ......................................................................
Tee, 3/4" NPT, Brass .....................................................................................
Tee, reducing, 1-1/4" x 3/4" x 3/4", Brass .....................................................
Nipple, close, 1-1/4" NPT, Brass ..................................................................
Bushing, reducing, 3/4" x 1/2" NPT, Brass ...................................................
Nipple, close, 1-1/2", BI ................................................................................
Tee, reducing, 1-1/4" x 3/4" x 1-1/4" NPT, Brass .........................................
Bushing, reducing, 2" x 1-1/4" NPT, Brass ...................................................
Nipple, 1" NPT x 2-1/2", BI ..........................................................................
Bushing, reducing, 2" x 3/4" NPT, Brass ......................................................
Street ell, 3/4" NPT, Brass .............................................................................
Elbow, 3/4" NPT, Brass ................................................................................
Tee, reducing, 3/4" x 3/4" x 1/2" Brass .........................................................
Plug, 1/2" NPT, Brass ....................................................................................
Junction box ...................................................................................................
Pressure regulating valve, 3/4" ......................................................................
Line strainer, 3/4" NPT, Brass .......................................................................
Ball valve, 3/4" NPT .....................................................................................
Bushing, reducing, 2" x 1-1/2", BI ................................................................
Street elbow, 1-1/2" x 90°, BI .......................................................................
Bushing, reducing, 1-1/2" x 1", BI ................................................................
Nipple, close, 1" NPT, BI ..............................................................................
Elbow, 1" NPT, BI ........................................................................................
Union, 1" NPT, BI (not shown) .....................................................................
Tee, reducing, 1" x 1" x 1/4", BI ...................................................................
Petcock, gauge, 1/4" M x F ...........................................................................
Tee, reducing, 1" x 1" x 1-1/2" NPT, BI .......................................................
Bushing reducing, 1" x 3/4" NPT, BI ............................................................
Nipple, 3/4" NPT x 8-3/4" lg., BI ..................................................................
Nipple, 3/4" NPT x 7-1/2" lg., BI ..................................................................
Tee, reducing, 1" x 3/4" x 3/4" NPT, BI .......................................................
Nipple, 1/2" NPT x 3-1/2" lg., BI ..................................................................
Steam trap, thermodynamic, 1/2" NPT, SST .................................................
Nipple, close, 1/2", BI ...................................................................................
Union, 1/2" NPT, BI ......................................................................................
Nipple, close, 1/2", BI ...................................................................................
Elbow, reducing, 3/4" x 1/2" NPT, BI ...........................................................
Nipple, 3/4" x 3" long, BI ..............................................................................
Bushing, reducing, 2" x 3/4" NPT, BI ...........................................................
Base weldment, 260 Bstr, Navy ....................................................................
Nipple, 3/4" x 4-1/2" lg., BI ..........................................................................
Union, 3/4", BI ..............................................................................................
Elbow, 3/4" x 90, BI ......................................................................................
Base, stand .....................................................................................................
Panel, front ....................................................................................................
Panel, top .......................................................................................................
Screw (10-32 x 3/8") .....................................................................................
Thermostat w/capillary (after S/N J1698)(Control Thermostat Only) ..........
Qty.
1
1
1
1
1
1
1
1
1
2
9
2
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
6
1
91
6 12
11
6 5
4
ON
3
10 9 17
16
START
OFF
3
BOOSTER
LOW TEMP
STOP
POWER ON
3
8
13
15
14
10
7
9
20
21
25
24
26
22
23
36
18
19
22
23
CONTROL
TRANSFORMER
CIRCUIT
BREAKER
3
CB
FU2
FU1
DRIVE
WASH
RINSE
MRAÊ
27
GROUND
32
31
35
30
29
33
34
29 30
MACHINE ELECTRICAL
CONNECTION PLATE
120V
120V
120V
120V
4120V
120V
CONTROL
FUSES
MOTOR CONTACTORS
MOTOR OVERLOADS
POWER
TERMINAL BLOCK
CONTROL RELAYS
2
1
120V
120V
DRIVE
WASH
RINSE
MRA
RT
WT
Figure 6.17 Steam Remote Control Cabinet
(For machines built prior to J1050)
TIMERS
92
28
MAIN TERMINAL BOARD
Part 6:
REPLACEMENT PARTS
Part 6: REPLACEMENT PARTS
(For
Fig. 6.17
Item No.
Part
No.
STEAM REMOTE CONTROL CABINET
machines built prior to S/N J1050)
Part Description
Qty.
1
2
3
*4
*5
(**) *6
7
8
9
10
**11
**12
***13
***14
***15
16
17
18
19
20
—
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
322969
322814
107860
111802
111691
111617
112694
112041
111685
111686
112822
111614
111616
112823
111615
112693
110980
111627
111624
111671
110812
108122
111153
111821
106995
304326
107091
111833
103310
111036
111068
112352
112351
107171
112296
108607
111625
Cabinet, SST ......................................................................................
Lid, cabinet .........................................................................................
Clip, hold down assy. .........................................................................
Nameplate, Off-On (No Longer Available) ........................................
Switch, selector, 2 position (No Longer Available) ...........................
Block, contact, No ..............................................................................
Nameplate, Power On ........................................................................
Lens, green pilot lite 64 ......................................................................
Block, lighted contact .........................................................................
Bulb, 120v ..........................................................................................
Nameplate, Start (Replaces 107618) ..................................................
Pushbutton, green ...............................................................................
Block, contact NC ..............................................................................
Nameplate, Stop (Replaces 107617) ..................................................
Pushbutton, red ...................................................................................
Nameplate, booster low temp .............................................................
Lens, red pilot lite 64 .........................................................................
Overload, mtr. (2.4-4.0A) wash / rinse ...............................................
Overload, mtr. (0.6-1.0A) drive .........................................................
Bus bar, 3-units (w/o MRAN 90) .......................................................
Bus bar, 4-units (with MRAN 90) ......................................................
Contractor, mtr. 12A ...........................................................................
Block, fuse 600v .................................................................................
Fuse, 3A (ATDR-3) ............................................................................
Circuit breaker, 5A .............................................................................
Bracket, circuit breaker ......................................................................
Transformer, 500va ............................................................................
Block, terminal 185A, 3 pole 600v ....................................................
Lug, ground wire ................................................................................
Socket, relay .......................................................................................
Relay, 2PDT 10A 120vac ...................................................................
Socket, timer ......................................................................................
Timer, Omron H2C-8R ......................................................................
Block, terminal (chemical dispensing) ...............................................
Label, chemical dispensing signal ......................................................
Block, terminal 18 pt ..........................................................................
Overload, mtr., (1.0-1.6A) MRAN 90° ..............................................
*
900848
**
900847
***
900846
Kit*On Off Switch (Includes 113670 Switch, 112821 Nameplate,
111617 Contact Block N.O) (Includes items 4-6) ..............................
Kit*Start Switch Assy (Includes 111614 Pushbutton Green, 111617
Contact block N.O., 112822 Nameplate)(Includes items 6,11, 12) ...
Kit*Stop Switch Assy (Includes 111615 Pushbutton Red, 111616
Contact Block N.C., 112823 Nameplate)(Includes items 13-15) ......
1
1
4
1
1
2
1
1
2
2
1
1
2
1
1
1
1
2
1
1
1
4
2
2
1
1
1
1
1
8
8
2
2
1
1
1
1
1
1
1
93
2
1
13 6 12
6 12
11
6 5
4
3
PRIME
3
ON
START
OFF
3
BOOSTER
LOW TEMP
STOP
POWER ON
3
10
9
17
16
15
13
14
8
10
7
9
25 24
21
18
2M
3M
WASH
RINSE
MOTOR OVERLOADS
DRIVE
3MOL
1MOL
2MOL
1M
RT
TIMERS
RINSE
MOTOR CONTACTORS
WASH
DRIVE
32
20
31
26
CIRCUIT
BREAKER
CONTROL
TRANSFORMER
WT
19
CB
12
92a
Figure 6.17aElectric Remote Control Cabinet
(For machines beginning with S/N J1050 and above)
CONTROL
FUSES
FU2
120V
120V
120V
120V
POWER
TERMINAL BLOCK
FU1
120V
120V
120V
120V
22
30
29
23
33
34
35
36
GROUND
29 30
27
CONTROL RELAYS
28
MAIN TERMINAL BOARD
Part 6:
REPLACEMENT PARTS
Part 6:
REPLACEMENT PARTS
ELECTRIC REMOTE CONTROL CABINET
(For machines beginning with S/N J1050 and above)
Fig. 6.17a
Item No.
Part
No.
Part Description
Qty.
1
2
3
*4
*5
(**) *6
7
8
9
10
** 11
** 12
*** 13
*** 14
*** 15
16
17
18
19
20
—
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
322969
322814
107860
111802
111691
111617
112694
112041
111685
111686
112822
111614
111616
112833
111615
112693
110980
111627
111624
111671
110812
108122
111153
111821
106995
304326
107091
111833
103310
111036
111068
112352
112351
107171
112296
108607
111827
111625
Cabinet, SST ......................................................................................
Lid, cabinet .........................................................................................
Clip, hold down assy. .........................................................................
Nameplate, Off-On .............................................................................
Switch, selector, 2 position ................................................................
Block, contact, NO .............................................................................
Nameplate, Power On ........................................................................
Lens, green pilot lite ...........................................................................
Block, lighted contact.........................................................................
Bulb, 120V .........................................................................................
Nameplate, Start (Replaces 107618) ..................................................
Pushbutton, green ...............................................................................
Block, contact NC ..............................................................................
Nameplate, Stop (Replaces 107617) ..................................................
Pushbutton, red ...................................................................................
Nameplate, booster low temp .............................................................
Lens, red pilot lite ..............................................................................
Overload, mtr. (2.4-4.0A) wash/rinse .................................................
Overload, mtr. (0.6-1.0A) drive .........................................................
Bus bar, 3-unit (w/o MRAN 90) ........................................................
Bus bar, 4-unit (With MRAN 90).......................................................
Contactor, mtr. 12A ............................................................................
Block, fuse 600v.................................................................................
Fuse, 3A (ATDR-3) ............................................................................
Breaker, circuit 5A .............................................................................
Bracket, circuit breaker ......................................................................
Transformer, 500va ............................................................................
Block, terminal 185A, 3 pole 600V ...................................................
Lug, ground wire ................................................................................
Socket, relay .......................................................................................
Relay, 2PDT 10A 120VAC .................................................................
Socket, timer ......................................................................................
Timer, omron H2C-8R .......................................................................
Block, terminal (chemical dispensing) ...............................................
Label, chemical dispensing signal ......................................................
Block, terminal 18pt. ..........................................................................
Contactor, block 3 pole 60A ..............................................................
Overload, mtr. (1.0-1.6A) MRAN 90° ...............................................
1
1
4
1
1
3
1
1
2
2
1
2
3
1
1
1
1
2
1
1
1
3
2
2
1
1
1
1
1
8
8
2
2
1
1
1
2
1
*
900848
**
900847
***
900846
Kit* On Off Switch (Includes 112821 Nameplate, 113670 Switch, 111617
Contact Block N.O.) (Includes items 4-6) ......................................... 1
Kit*Start Switch Assy (Includes 111614 Pushbutton Green, 111617
Contact Block N.O., 112822 Nameplate )(Includes items 6,11,12) ...
1
Kit*Stop Switch Assy (Includes 111615 Pushbutton Red, 111616 Contact
Block N.C.,112823 Nameplate)(Includes items 13-15) .....................
1
93a
13
14
92b
2
1
Figure 6.17bSteam or Electric Remote Control Cabinet
(For machines beginning with S/N J1080 and above)
16
ON
START
OFF
FINAL RINSE
WATER PRIME
13 6 12
6 12
11
6 5
4
3
3
9
38
10
39
9
17
13
15
14
10
8
LOW RINSE
TEMP ALARM
STOP
POWER ON
7
3
120V
RINSE
FU1
29
30
120V
120V
120V
TIMERS
DRIVE
MRA
CONTROL RELAYS
WT
MOTOR CONTACTORS
21
FU2
WASH
120V
22
23
CB
25
24
26
CONTROL
TRANSFORMER
RT
18
RINSE
120V
120V
31 32
WASH
30
19
29
120V
DRIVE
37
36
GROUND
MRA
20
35
28
27
33
34
MAIN TERMINAL BOARD
Part 6:
REPLACEMENT PARTS
Part 6:
REPLACEMENT PARTS
STEAM OR ELECTRIC REMOTE CONTROL CABINET
(For machines beginning with S/N J1080 and above)
Fig. 6.17b Part
Item No. No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
—
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
------___
-----
322969
322814
107860
111802
113670
111617
112824
113751
112817
112818
112822
111614
111615
112823
111615
113195
113753
111627
111624
111671
110812
108122
111153
111821
106995
304326
107091
111833
103310
111036
111068
112352
112351
107171
112296
108607
111827
111625
113752
113754
900848
900849
900847
900846
900851
900850
Part Description
Qty.
Cabinet, SST ......................................................................................
Lid, cabinet .........................................................................................
Clip, hold down assy. .........................................................................
Nameplate, Off-On .............................................................................
Switch, selector, 2 position(Replaces 112814)(See Kits Below) .......
Block, contact, NO (Replaces 112819) (See Kits Below) .................
Nameplate, Power On 22MM (See Kits Below) ................................
Lens, green pilot lite (Replaces 112815) (See Kit Below) ................
Lampholder 120V 22MM (See Kits Below) ......................................
Bulb, 120V 22MM (See Kits Below).................................................
Nameplate, Start (See Kits Below) ....................................................
Pushbutton, green (Replaces 112812) (See Kits Below) ...................
Block, contact NC (Replaces 112820) (See Kits Below) ...................
Nameplate, Stop (See Kits Below) .....................................................
Pushbutton, red (Replaces 112811) (See Kits Below) .......................
Nameplate, Low temp alarm/prime (See Kits Below) .......................
Lens, red pilot lite (Replaces 112816) (See Kits Below) ...................
Overload, mtr. (2.4-4.0A) wash/rinse .................................................
Overload, mtr. (0.6-1.0A) drive .........................................................
Bus bar, 3-unit (w/o MRAN 90) ........................................................
Bus bar, 4-unit (With MRAN 90).......................................................
Contactor, mtr. 12A ............................................................................
Block, fuse 600v.................................................................................
Fuse, 3A (ATDR-3) ............................................................................
Breaker, circuit 5A .............................................................................
Bracket, circuit breaker ......................................................................
Transformer, 500va ............................................................................
Block, terminal 185A, 3 pole 600V ...................................................
Lug, ground wire ................................................................................
Socket, relay .......................................................................................
Relay, 2PDT 10A 120VAC .................................................................
Socket, timer ......................................................................................
Timer, omron H2C-8R .......................................................................
Block, terminal (chemical dispensing) ...............................................
Label, chemical dispensing signal ......................................................
Block, terminal 18pt. ..........................................................................
Contactor, block 3 pole 60A (Electric Heat Only) .............................
Overload, mtr. (1.0-1.6A) MRAN 90° ...............................................
Mounting base LED green .................................................................
Mounting base LED red .....................................................................
Kit*On Off Switch Assy (Includes items 4-6) ...................................
Kit*Light Assy Green (Includes items 7-10, 38) ...............................
Kit*Start Switch Assy (Includes items 6, 11, 12) ..............................
Kit*Stop Switch Assy (Includes items 13-15) ...................................
Kit*Rinse Prime Button (Includes items 6, 12, 13) ...........................
Kit*light Assy Red (Includes items 9, 10, 16, 17, 39) .......................
1
1
4
1
1
3
1
1
2
2
1
2
3
1
1
1
1
2
1
1
1
3
2
2
1
1
1
1
1
8
8
2
2
1
1
1
2
1
1
1
A/R
A/R
A/R
A/R
A/R
A/R
93b
15
Part 6: REPLACEMENT PARTS
1
2
3
Figure 6.18Dishracks and PRV
94
Part 6: REPLACEMENT PARTS
DISHRACKS AND PRV
Fig. 6.18
Item No.
1
2
3
Part
No.
101273
101285
107550
Part Description
Rack, flat bottom ................................................................................
Rack, peg ............................................................................................
Valve, pressure reducing (PRV) .........................................................
Qty.
1
1
1
95
Part 6: REPLACEMENT PARTS
1
1
3
4
5
5
4
2
6
5
4
6
5
4
1
1
1
4
8
5
7
6
9
1
4
5
1
1
9
6
5
4
6
Figure 6.19MRAN 90° Guides
96
Part 6: REPLACEMENT PARTS
MRAN 90° GUIDES
Fig. 6.19
Item No.
1
2
3
4
5
6
7
8
9
Part
No.
100735
310180
314640
111370
107966
314466
314641
314649
107967
Part Description
Qty.
Bolt (1/4" x 5/8") Hex hd ................................................................... A/R
Guide, rack advance ........................................................................... 1
Rack, support inner ............................................................................ 1
Screw (10-32 x 5/8") Hex hd ............................................................. 7
Nut, grip (10-32) ................................................................................ 7
Rack, support ...................................................................................... 7
Rack, support outer ............................................................................ 1
Rack, support inner ............................................................................ 1
Nut, grip (1/4-20 w/nylon insert) ....................................................... A/R
97
1
2
3
4
5
6
7
8
9
Part 6: REPLACEMENT PARTS
Figure 6.20MRAN 90° Pawl Bar
98
Part 6: REPLACEMENT PARTS
MRAN 90° PAWL BAR
Fig. 6.20
Item No.
1
2
3
4
5
6
7
8
9
Part
No.
314605
110240
110236
102376
106013
110553
106560
320156
111062
Part Description
Qty.
Bar, pawl ............................................................................................
Bolt, pawl mounting ...........................................................................
Pawl, rack advance .............................................................................
Washer (5/16" x 3/4" x 1/16") ............................................................
Washer, lock (5/16" split) ...................................................................
Nut, 8mm SST ....................................................................................
Pin, cotter (1/8" x 1/-1/2") ..................................................................
Washer (1-1/4" x 3/4" x 1/16") ...........................................................
Shaft, pivot .........................................................................................
1
7
7
7
7
7
1
1
1
99
Part 6: REPLACEMENT PARTS
2
1
3
5
4
2
3
5
1
4
6
6
7
22
25
9
5
21
26
20
8
13
7
10
19
14
11
25
26
12
7
15
18
17
STUD
(welded)
5
16
6
7
5
5
6
23
25
26
6
25
24
26
28
29
6
30
32
31
Figure 6.21MRAN 90° Table and Drain Assembly
100
27
Part 6:
REPLACEMENT PARTS
MRAN 90° TABLE AND DRAIN ASSEMBLY
Fig. 6.21
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Part
No.
202392
106138
106558
314352
100735
107967
107966
202381
100769
202386
100868
107089
100007
104925
100771
103180
100153
107864
107863
304816
106482
10003
314354
100747
106026
100141
112145
320261
107865
107866
107867
109283
Part Description
Qty.
Pin, roller ............................................................................................
Roller, pawl bar ..................................................................................
Pin, cotter (1/8" x 3/4") ......................................................................
Bracket, roller .....................................................................................
Bolt (1/4-20 x 5/8") ............................................................................
Nut, grip (1/4-20 w/nylon insert) .......................................................
Nut, grip (10-32) ................................................................................
Roller, crosshead ................................................................................
Screw, set (3/8-16 x 3/4" dog point)...................................................
Crank ..................................................................................................
Stud, roller ..........................................................................................
Nut, jam 1/2-13 ..................................................................................
Screw (10-32 x 3/8) Truss hd. ............................................................
Washer (1/4" x 1") ..............................................................................
Screw, set (1/4-20 x 1/4) Socket hd ...................................................
Ring, wiper .........................................................................................
Bolt (3/8-16 x 1") Hex hd. .................................................................
Washer, packing .................................................................................
Outlet, waste .......................................................................................
Strainer, 6" ..........................................................................................
Washer, lock 1/4" split........................................................................
Nut, plain 1/4-20 SST ........................................................................
Stiffener, shaft ....................................................................................
Bolt (1/2-13 x 1") ...............................................................................
Washer (1/4" x 5/8" x 1/16") SST ......................................................
Nut, grip (1/4-20) SST .......................................................................
Receptacle (Optional for roller table only) ........................................
Bracket, cord (Optional for roller table only) ....................................
Locknut ..............................................................................................
Washer, packing .................................................................................
Nut, outlet pipe ...................................................................................
Tailpiece, straight ...............................................................................
2
2
2
2
A/R
A/R
4
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
A/R
A/R
1
1
1
1
1
1
* Please note that the direction of the crank arm should be clockwise when looking down from the
top of the table.
101
Part 6: REPLACEMENT PARTS
2
5
3
1
4
5
9
10
6
11
12
8
16
15
6
7
7
13
7
14
6
7
8
6
7
8
Figure 6.22MRAN 90° Base Assembly
102
Part 6: REPLACEMENT PARTS
MRAN 90° BASE ASSEMBLY
Fig. 6.22
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Part
No.
111063
111075
111074
107341
100735
106026
107967
100141
111114
106407
100141
104584
107589
107089
100003
111095
Part Description
Qty.
Plate, spacer ........................................................................................ 1
Roller head, limit switch ....................................................................
1
Lever rod, limit switch .......................................................................
1
Switch, limit ....................................................................................... 1
Bolt (1/4-20 x 5/8") Hex hd. .............................................................. 1
Washer (1/4" x 5/8" x 1/16") SST ...................................................... A/R
Nut, grip (1/4-20) w/nylon insert ....................................................... A/R
Nut, grip (1/4-20) SST ....................................................................... A/R
Bolt ( 3/8 -16 x 3-1/2") SST ............................................................... 1
Washer, lock (3/8" split) .....................................................................
1
Nut plain .............................................................................................
1
Nut, plain (1/2-13) Hex hd. ................................................................ 1
Washer, lock (1/2 external) ................................................................ 1
Nut, jam (1/2-13) ................................................................................
1
Nut, plain (1/4-20) SST ......................................................................
1
Bolt, eye (1/4-20 x 1") ........................................................................ 1
103
Part 6: REPLACEMENT PARTS
1
2
3
14
23
4
5
6
19
7
8
18
17
24
8
16
9
10
17
20
11
14
12
16
14
21
14
13
15
14
22
Welded to bottom
of item (13)
Figure 6.23MRAN 90° Drive and Motor Assembly
104
Part 6: REPLACEMENT PARTS
MRAN 90° DRIVE AND MOTOR ASSEMBLY
Fig. 6.23
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Part
No.
108820
102384
B1074-1
102244
100382
106619
111066
111064
100771
104916
100870
110152
314364
106026
105296
100003
100141
112877
325622
111095
111076
106028
104923
111605
Part Description
Qty.
Gasket, bearing housing .....................................................................
Bearing (comes with item 3) ..............................................................
Housing, bearing ................................................................................
Seal assy .............................................................................................
Bearing (comes with set screws) ........................................................
Key (3/16" x 3/16" x 1") ....................................................................
Shaft, rack advance ............................................................................
Coupler, Shaft .....................................................................................
Screw, set (1/4-20 x 1/4") socket hd. ..................................................
Key (3/16" x 3/16" x 3/4") .................................................................
Slinger, water .....................................................................................
Reducer ..............................................................................................
Base, reducer ......................................................................................
Washer ................................................................................................
Spacer, SST ........................................................................................
Nut, plain (1/4-20) SST ......................................................................
Nut, grip (1/4-20) SST .......................................................................
Motor (1/2 HP 115/208-240V/1HP) ...................................................
Clamp, motor ......................................................................................
Bolt, eye (1/4-20 x 1") ........................................................................
Spring, motor return ...........................................................................
Bolt (1/4-20 x 2-1/2") Hex Hd. ..........................................................
Screw (1/4-20 x 3/8") Round Hd. ......................................................
Coupling, spider .................................................................................
1
1
1
1
1
1
1
2
1
1
1
1
1
8
4
6
6
1
1
1
1
4
4
1
105
Part 6: REPLACEMENT PARTS
24
23
21
22
20
2
2
14
13
17
18
15
10
19
7
2
16
8
4
6
7
9
25
11
10
10
6
26
10
12
4
29
30
25
3
29
1
28
2
5
27
29
30
29 28
5
27
Figure 6.24CH-60 Electric Booster Piping
(For USS Ramage Only)
106
Part 6: REPLACEMENT PARTS
CH-60 ELECTRIC BOOSTER PIPING
Fig. 6.24
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
*28
29
*30
Part
No.
325508
102444
101582
113201
102443
102651
102525
107828
107550
100184
110768
104828
102489
102526
102390
113170
102676
100571
104682
102653
102535
102396
102394
100128
102392
106911
102506
112595
109985
109458
Part Description
Qty.
Cannister, booster ...............................................................................
Elbow, street 3/4" x 90° brass ............................................................
Nipple, 3/4" x 18-1/2" brass ...............................................................
Valve, 3/4" relief ................................................................................
Elbow, 3/4" x 90° SST .......................................................................
Nipple, 3/4" x 2" brass .......................................................................
Tee, reducer 3/4" x 1/2" x 3/4" brass ..................................................
Gauge, Pressure temperature ..............................................................
Valve, pressure reducing 3/4" .............................................................
Nipple, 3/4" close brass ......................................................................
Strainer, line 3/4" brass ......................................................................
Valve, ball 3/4" brass ..........................................................................
Nipple, 3/4" x 2-1/2" brass .................................................................
Tee, reducer 3/4" x 3/4" x 1/2" ...........................................................
Bushing, reducer 1/2" x 3/8" brass .....................................................
Probe, water level ...............................................................................
Nipple, 3/4" x 10-1/2" brass ...............................................................
Union, 3/4 NPT brass .........................................................................
Thermometer 1/2" NPT stem .............................................................
Nipple 3/4" x 4" brass ........................................................................
Tee, reducer 1" x 1" x 3/4" brass ........................................................
Bushing, reducer 1" x 3/4" brass .......................................................
Bushing, reducer 1" x 1/2" brass ........................................................
Thermostat ..........................................................................................
Bushing, reducer 3/4" x 1/2" brass .....................................................
Union, elbow 3/4" x 90° Female brass ...............................................
Plug 3/4" NPT SST ............................................................................
Heater, 15KW 440V/60 /3 ..................................................................
O-ring .................................................................................................
Plate, blockoff ....................................................................................
2
4
1
2
2
2
2
2
1
4
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
4
6
2
* Mounting hardware:
—
100003 Nut, plain (1/4-20) SST ......................................................................
—
106482 Washer, lock (1/4" split) .....................................................................
3
3
107
Part 6: REPLACEMENT PARTS
8
18
7
9
2
2
1
6
3
4
14
5
Side View
Front View
16
13
12
15
11
10
17
Figure 6.25CH-60 Electric Booster Control Cabinet
(For USS Ramage Only)
108
Part 6: REPLACEMENT PARTS
CH-60 ELECTRIC BOOSTER CONTROL CABINET
Fig. 6.25
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Part
No.
111833
180171
180175
112424
112887
109064
113186
111827
112083
107351
106364
109069
110561
325511
325512
325513
325514
325523
Part Description
Qty.
Block, terminal 185A 3 pole ..............................................................
Block., fuse 600V, 60A ......................................................................
Fuse, type J 50A .................................................................................
Block, fuse ..........................................................................................
Fuse, ATDR 1/2A Time delay ............................................................
Transformer ........................................................................................
Board, water level control ..................................................................
Contactor, 60FLA ...............................................................................
Fan, blower .........................................................................................
Switch, toggle DPDT .........................................................................
Light, pilot green 120V ......................................................................
Thermostat, control ............................................................................
Thermostat, high limit ........................................................................
Panel, corner post ...............................................................................
Panel, RH side ....................................................................................
Panel LH side .....................................................................................
Panel Front .........................................................................................
Panel Top ............................................................................................
1
2
6
1
2
1
1
2
1
1
1
2
2
1
1
1
1
1
109
Part 6: REPLACEMENT PARTS
THIS PAGE
INTENTIONALLY
LEFT BLANK
110
Part Part
7: ELECTRICAL
6: REPLACEMENT
SCHEMA
PARTS
TICS
PART 7:
ELECTRICAL
SCHEMATICS
111
120V CONTROLS
1
2
440V/60Hz/3
L1 L2 L3
SW
OFF
1
ON
GND
51
PL
3
CB
53
58
58
59
8CR
4
56
57
2
6
5
7
3 1CR 4
STOP
1 11
START
8
6
6
8
53
3CR
7
9
MSW
1M
N.O.
L1
5CR
10
11
1MOL
12
2MOL
13 3MOL
14
48
49
50
2M
3M
33
34
35
DRIVE
MOTOR
36
37
38
WASH
MOTOR
39
40
41
RINSE
MOTOR
P2
440V
T1
15
1 120V
FRV
2
2
RINSE AID/
SANI SIGNAL
N.O.
3CR
4
3MOL
45
46
47
1M
FU2
P1
3M
4CR
2MOL
42
43
44
L3
FU1
2M
N.C.
6
1MOL
1M
SEE NOTE 1
2CR
L1
L2
L3
DETERGENT
SIGNAL
1
8
2
5
L1
L2
L3
9
10
56
KR
RL
57
3
LRTT
L1
L2
L3
16
TSR
N.C.
17
HC2
N.C.
16
TSB
N.0.
18
BC1
N.O.
2CR
19
TSW
N.C.
20
HC1
DSS
W
3
6CR
21
R
22
WT
23
1
7
M
8
4
2
6
5
CLUTCH
1CR
NOTES
1. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
SET FOR 5 SECONDS
25
2CR
2
OFF DELAY
7CR
3
RT
26
1
7
CLUTCH
M
8
SET FOR 5 SECONDS
4
2
6
5
28
3CR
OFF DELAY
FRSW
4
29
TLS
3
30
WFSW
31
RFSW
TSK
3
N.C.
4CR
5CR
2
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
6CR
32
7CR
54
8CR
2
1CR
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
WASH TANK FLOAT HOLD-IN RELAY
3CR
RINSE TANK FLOAT HOLD-IN RELAY
4CR
FINAL RINSE SWITCH RELAY
5CR
TABLE LIMIT SWITCH RELAY
6CR
WASH TANK FLOAT SWITCH RELAY
7CR
RINSE TANK FLOAT SWITCH RELAY
8CR
LOW TEMP RELAY
1M
DRIVE CONTACTOR
1MOL
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
2MOL
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
3MOL
RINSE MOTOR OVERLOAD
BC1
BOOSTER STEAM SOLENOID VALVE
CB
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FRV
FINAL RINSE FILL VALVE
FU-
FUSE-TRASNSFORMER
HC1
WASH TANK STEAM SOLENOID VALVE
HC2
RINSE TANK STEAM SOLENOID VALVE
KR
KEYED RESET SWITCH
LRTT
LOW RINSE TEMPERATURE TIMER
MSW
MOTOR STOP SWITCH
PL
POWER ON LIGHT
RFSW
RINSE TANK FLOAT SWITCH
R
RINSE TANK DOOR SAFETY SWITCH
RL
RESET LIGHT
RT
RINSE TANK FLOAT TIMER
SW
POWER SWITCH
T1
440V:120V TRANSFORMER
TKL
LOW TEMP INDICATOR LIGHT
TLS
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WFSW
WASH TANK FLOAT SWITCH
WT
WASH TANK FLOAT TIMER
N.0.
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
30OCT97
SCALE
SHEET
1
OF
REV.
D
1
DESCRIPTION
ADDED LOW RINSE TEMPERATURE TIMER
DATE
21APRIL98
BY
REV.
DESCRIPTION
DATE
USN-72
STEAM
BY
JCN
The Dishwashing Machine Specialists
B
701541
REV.
D
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 15A MAX. AT
440/60/3.
2
SW
OFF
1
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
L1 L2 L3
ON
51
GND
PL
3
CB
53
58
58
59
8CR
4
56
57
57
6
5
7
3
2
LRTT
1 11
3 1CR 4
STOP
START
5
L1
L2
L3
6
8
53
DETERGENT
SIGNAL
1
8
2
KR
RL
2
9
10
56
L1
L2
L3
L1
L2
L3
6
SEE NOTE 1
2CR
3CR
7
9
MSW
1M
N.O.
10
2MOL
3MOL
42
43
44
45
46
47
48
49
50
1M
33
34
35
2M
DRIVE
MOTOR
36
37
38
3M
WASH
MOTOR
39
40
41
RINSE
MOTOR
1M
L1
8
1MOL
5CR
11
1MOL
12
2MOL
13 3MOL
14
2M
N.C.
L3
FU1
P1
FU2
P2
3M
440V
4CR
6
15
FRV
T1
2
RINSE AID/
SANI SIGNAL
2
N.O.
3CR
4
1 120V
16
TSR
N.C.
95
N.C.
HLRT
17
HC2
N.C.
16
TSB
N.0.
18
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 35A MAX. AT
440/60/3.
BC1
N.O.
2CR
19
TSW
N.C.
96
N.C.
HLWT
20
HC1
GND
1L1
1L2
1L3
DSS
W
3
6CR
21
R
22
WT
23
1
7
CLUTCH
M
8
HC1
1CR
81
SET FOR 5 SECONDS
4
2
6
5
7CR
25
RT
26
1
7
CLUTCH
M
8
2CR
2
83
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
84
28
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 50A MAX. AT
440/60/3.
3CR
GND
FRSW
29
2L1
4CR
2L2
2L3
HC2
TLS
3
WFSW
RFSW
30
5CR
31
6CR
32
7CR
54
8CR
2
86
87
N.C.
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
WASH TANK FLOAT HOLD-IN RELAY
3CR
RINSE TANK FLOAT HOLD-IN RELAY
4CR
FINAL RINSE SWITCH RELAY
5CR
TABLE LIMIT SWITCH RELAY
6CR
WASH TANK FLOAT SWITCH RELAY
7CR
RINSE TANK FLOAT SWITCH RELAY
8CR
LOW TEMP RELAY
1M
DRIVE CONTACTOR
1MOL
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
2MOL
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
3MOL
RINSE MOTOR OVERLOAD
BC1
BOOSTER HEATER CONTACTOR
CB
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FRV
FINAL RINSE FILL VALVE
FU-
FUSE-TRASNSFORMER
HC1
WASH TANK HEAT CONTACTOR
HC2
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
KR
KEYED RESET SWITCH
LRTT
LOW RINSE TEMPERATURE TIMER
MSW
MOTOR STOP SWITCH
PL
POWER ON LIGHT
RFSW
RINSE TANK FLOAT SWITCH
R
RINSE TANK DOOR SAFETY SWITCH
RL
RESET LIGHT
RT
RINSE TANK FLOAT TIMER
SW
POWER SWITCH
T1
440V:120V TRANSFORMER
TKL
LOW TEMP INDICATOR LIGHT
TLS
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WFSW
WASH TANK FLOAT SWITCH
WT
WASH TANK FLOAT TIMER
10kW
88
89
90
10kW
NOTES
1. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
91
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
92
93
TSK
3
10kW
85
SET FOR 5 SECONDS
4
2
6
5
OFF DELAY
4
10kW
82
OFF DELAY
3
80
1CR
10kW
94
2
N.0.
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
18MAY98
SCALE
SHEET
1
OF
REV.
1
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
BY
The Dishwashing Machine Specialists
B
USN-72
ELECTRIC
701580
REV.
**
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 50A MAX. AT
440/60/3.
2
SW
OFF
ON
51
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
PL
3
L1 L2 L3
CB
GND
DETERGENT
SIGNAL
SEE NOTE 1
3
STOP 5 TSK
1CR 4
N.C.
6
N.0.
START
8 2CR
3CR
7
MRA
70
SEE NOTE 2
N.O.
N.C.
9
MSW
N.O.
IF USED
5CR
10
11 1MOL
12
2MOL
13 3MOL
99 4MOL
14
2M
3M
4M
98
98
4CR
3MOL
L1
L2
L3
(IF USED)
4MOL
L1
L2
L3
TKL
PRIME
15
97
45
46
47
48
49
50
51
52
53
1M
2M
3M
4M
HC1
16
DRIVE
MOTOR
36
37
38
WASH
MOTOR
39
40
41
RINSE
MOTOR
54
55
56
MRA
MOTOR
81
TSR
N.C.
95
N.C.
HLRT
HC2
17
10kW
82
WASH TANK
HEATERS
83
L1
L3
84
N.O.
2CR
19
FU1
TSW
N.C.
96
N.C.
HLWT
HC1
20
P1
DSS
W
3
21
R
22
FU2
6CR
23
1
7
CLUTCH
M
8
4
2
6
5
RT
7CR
26
1
7
CLUTCH
M
8
4
2
6
5
T1
25
2CR
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
2
SET FOR 5 SECONDS
FRSW
TLS
3
2
SET FOR 5 SECONDS
28
3CR
29
4CR
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 50A MAX. AT
440/60/3.
OFF DELAY
4
85
440V
1CR
OFF DELAY
3
10kW
P2
1 120V
WT
(IF USED)
80
N.O.
3CR
33
34
35
FRV
4
4
42
43
44
2
RINSE AID/
SANI SIGNAL
8
2MOL
L1
L2
L3
N.C.
1M
1MOL
L1
L2
L3
1M
GND
2L1
(IF USED)
30
5CR
31
6CR
2L2
2L3
32
RINSE TANK
HEATERS
89
90
10kW
7CR
93
10kW
94
DR.BY
DATE
J.NEWTON
23MAR00
SCALE
SHEET
1
OF
REV.
A
B
1
DESCRIPTION
TANK HEAT ADDED TO MOTORS AND CONTROL CIRCUIT
MRA TO BE NC IN NORMAL POSITION
DATE
BY
6JUNE00
16OCT00
JCN
JCN
REV.
FINAL RINSE SWITCH RELAY
5CR
TABLE LIMIT SWITCH RELAY
6CR
WASH TANK FLOAT SWITCH RELAY
7CR
RINSE TANK FLOAT SWITCH RELAY
1M
DRIVE CONTACTOR
1MOL
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
2MOL
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
3MOL
RINSE MOTOR OVERLOAD
4M
MRA CONTACTOR
4MOL
MRA MOTOR OVERLOAD
BC1
BOOSTER HEATER CONTACTOR
CB
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FRV
FINAL RINSE FILL VALVE
FU-
FUSE-TRASNSFORMER
HC1
WASH TANK HEAT CONTACTOR
HC2
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
KR
KEYED RESET SWITCH
LRTT
LOW RINSE TEMPERATURE TIMER
MSW
MOTOR STOP SWITCH
MRA
MACHINE RACK ADVANCE LIMIT SWITCH
PL
POWER ON LIGHT
RFSW
RINSE TANK FLOAT SWITCH
R
RINSE TANK DOOR SAFETY SWITCH
RL
RESET LIGHT
RT
RINSE TANK FLOAT TIMER
SW
POWER SWITCH
T1
440V:120V TRANSFORMER
TKL
LOW TEMP INDICATOR LIGHT
TLS
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WFSW
WASH TANK FLOAT SWITCH
WT
WASH TANK FLOAT TIMER
2. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
10kW
88
92
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
RINSE TANK FLOAT HOLD-IN RELAY
4CR
1. REMOVE JUMPER ACROSS WIRES 70
AND 9 WHEN RACK ADVANCE TABLE IS
USED.
91
RFSW
WASH TANK FLOAT HOLD-IN RELAY
3CR
2
HC2
WFSW
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
NOTES
86
87
1CR
DESCRIPTION
DATE
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
USN-72
ELECTRIC
BY
The Dishwashing Machine Specialists
B
701697
REV.
B
**
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 50A MAX. AT
440/60/3.
2
SW
OFF
ON
51
PL
3
L1 L2 L3
CB
3
DETERGENT
SIGNAL
SEE NOTE 1
3
STOP 5 TSK
1CR 4
START
6
8 2CR
7
3CR
MRA
70
SEE NOTE 2
MSW
9
5CR
10
11 1MOL
12
2MOL 13 3MOL
99 4MOL
14
2
3M
2
4M
98
15
4CR
8
8
PRIME
15
4
(IF USED)
TSR
16
95
HLRT
17
HC2
48
49
50
51
52
53
2M
3M
4M
DRIVE
MOTOR
36
37
38
WASH
MOTOR
39
40
41
RINSE
MOTOR
54
55
56
MRA
MOTOR
60
2D
L1
2CR
4
19
96
HLWT
TB4
20
20
HC1
61
61A
62
62A
P1
W
21
R
22
SET FOR 5 SECONDS
3
3
6CR
WT
23
CLUTCH
1
7
3
M
8
22
1CR
7CR
4
2
6
5
RT
26
1
7
3
2
FRSW
3B
3C
3D
TLS
WFSW
RFSW
RINSE TANK FLOAT HOLD-IN RELAY
4CR
*
FINAL RINSE SWITCH RELAY
5CR
*
TABLE LIMIT SWITCH RELAY
6CR
*
WASH TANK FLOAT SWITCH RELAY
7CR
*
RINSE TANK FLOAT SWITCH RELAY
1M
*
DRIVE CONTACTOR
1MOL *
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
CLUTCH
M
8
*
2MOL *
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
*
3MOL *
RINSE MOTOR OVERLOAD
4M
MRA CONTACTOR
*
4MOL *
MRA MOTOR OVERLOAD
BC1
*
BOOSTER HEATER CONTACTOR
CB
*
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FINAL RINSE FILL VALVE
FU-
*
FUSE-TRASNSFORMER
HC1
*
WASH TANK HEAT CONTACTOR
HC2
*
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
MSW
MOTOR STOP SWITCH
MACHINE RACK ADVANCE LIMIT SWITCH
*
10kW
WASH TANK
HEATERS
RINSE TANK FLOAT SWITCH
RINSE TANK DOOR SAFETY SWITCH
RT
*
RINSE TANK FLOAT TIMER
SW
*
POWER SWITCH
T1
*
440V:120V TRANSFORMER
TB6
WASH HEATER TERMINAL BLOCK
TB7
TKL
10kW
62B
P2
2
POWER ON LIGHT
RINSE HEATER TERMINAL BLOCK
*
LOW TEMP INDICATOR LIGHT
TLS
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WFSW
WASH TANK FLOAT SWITCH
*
WASH TANK FLOAT TIMER
2
NOTES
25
4 2
2
6
5
2CR
2
2
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
2
28
3CR
29
4CR
OFF DELAY
4
*
WT
OFF DELAY
3
WASH TANK FLOAT HOLD-IN RELAY
3CR
R
T1
SET FOR 5 SECONDS
3
FU2
1 120V
*
RFSW
440V
2
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
PL
60B
2E
DSS
3A
(IF USED)
60A
L3
FU1
PARTS LOCATED IN CONTROL PANEL
*
MRA
61B
TSW
*
1CR
FRV
2C
HC1
17
45
46
47
33
34
35
GND
4
3CR
4MOL
L1
L2
L3
42
43
44
1M
2B
FRV
97
3MOL
L1
L2
L3
TKL 2
RINSE AID/
SANI SIGNAL
97
2MOL
L1
L2
L3
2
2M
1MOL
L1
L2
L3
2
1M
IF USED
GND
2A
1M
98
4
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
29
2
2L1 2L2
(IF USED)
30
30
31
31
32
32
5CR
6CR
7CR
2. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 50A MAX. AT
440/60/3.
2
2L3
1. REMOVE JUMPER ACROSS WIRES 70
AND 9 WHEN RACK ADVANCE TABLE IS
USED.
63A
64A
10kW
65A
GND
2
HC2
2
63
TB5
63B
64
64B
65
65B
10kW
RINSE TANK
HEATERS
2
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
63C
64C
10kW
65C
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
23MAR00
SCALE
SHEET
1
OF
1
REV.
DESCRIPTION
DATE
BY
A
B
C
TANK HEAT ADDED TO MOTORS AND CONTROL CIRCUIT
MRA TO BE NC IN NORMAL POSITION
CHANGED WIRE NUMBERS TO MATCH TERMINAL BLOCKS
6JUNE00
16OCT00
06OCT03
JCN
JCN
JAM
REV.
DESCRIPTION
DATE
BY
The Dishwashing Machine Specialists
B
USN-72
ELECTRIC
701697
REV.
C
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 15A MAX. AT
440/60/3.
2
SW
OFF
L1 L2 L3
ON
51
GND
PL
3
CB
DETERGENT
SIGNAL
SEE NOTE 1
3
1CR 4
STOP 5
TSK
N.C.
START
6
N.0.
8 2CR
MRA
3CR 70
7
N.O.
9
N.C.
1M
1M
SEE NOTE 2
MSW
N.O.
L1
L2
L3
IF USED
5CR
10
L1
L2
L3
11
1MOL
12 2MOL
13 3MOL
99 4MOL
14
2M
L1
L2
L3
N.C.
3M
4M
98
98
L1
L2
L3
(IF USED)
L1
RINSE AID/
SANI SIGNAL
4CR
8
15
97
2MOL
3MOL
4MOL
42
43
44
45
46
47
48
49
50
51
52
53
1M
2M
3M
4M
33
34
35
DRIVE
MOTOR
36
37
38
WASH
MOTOR
39
40
41
RINSE
MOTOR
54
55
56
MRA
MOTOR
(IF USED)
TKL
2
PRIME
1MOL
L3
FU1
P1
FRV
FU2
P2
440V
4
T1
N.C.
3CR
4
1 120V
16
N.O.
TSR
17
HC2
TSB
18
BC1
2
N.C.
N.O.
N.C.
2CR
19
TSW
N.O.
20
HC1
DSS
W
3
6CR
21
R
22
WT
23
1
7
CLUTCH
M
8
4
2
6
5
1CR
SET FOR 5 SECONDS
25
2CR
2
OFF DELAY
7CR
3
RT
26
1
7
CLUTCH
M
8
4
2
6
5
SET FOR 5 SECONDS
28
3CR
29
4CR
OFF DELAY
FRSW
4
NOTES
TLS
3
WFSW
RFSW
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
12JUNE00
SCALE
SHEET
1
OF
REV.
A
1
REVISED THERMOSTAT CONTACT LOGIC
DATE
BY
REV.
DOOR SAFETY SWITCH HOLD-IN RELAY
HC1
WASH TANK HEAT STEAM VALVE
2CR
WASH TANK FLOAT HOLD-IN RELAY
HC2
RINSE TANK HEAT STEAM VALVE
3CR
RINSE TANK FLOAT HOLD-IN RELAY
MRA
MRA MOTOR STOP SWITCH (IF USED)
4CR
FINAL RINSE SWITCH RELAY
MSW
MOTOR STOP SWITCH
5CR
TABLE LIMIT SWITCH RELAY
PL
POWER ON LIGHT
6CR
WASH TANK FLOAT SWITCH RELAY
RFSW
RINSE TANK FLOAT SWITCH
7CR
RINSE TANK FLOAT SWITCH RELAY
R
RINSE TANK DOOR SAFETY SWITCH
1M
DRIVE CONTACTOR
RT
RINSE TANK FLOAT TIMER
1MOL
DRIVE MOTOR OVERLOAD
SW
POWER SWITCH
2M
WASH CONTACTOR
T1
440V:120V TRANSFORMER
2MOL
WASH MOTOR OVERLOAD
TKL
LOW TEMP INDICATOR LIGHT
3M
RINSE CONTACTOR
TLS
TABLE LIMIT SWITCH (IF USED)
3MOL
RINSE MOTOR OVERLOAD
TSB
BOOSTER THERMOSTAT
4M
MRA MOTOR CONTACTOR (IF USED)
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
4MOL
MRA MOTOR OVERLOAD (IF USED)
TSR
RINSE TANK THERMOSTAT
BC1
BOOSTER HEATER STEAM VALVE
TSW
WASH TANK THERMOSTAT
CB
CIRCUIT BREAKER
W
WASH TANK DOOR SAFETY SWITCH
DSS
DOOR SAFETY SWITCH
WFSW
WASH TANK FLOAT SWITCH
FRSW
FINAL RINSE SWITCH
WT
WASH TANK FLOAT TIMER
FRV
FINAL RINSE VALVE
FU-
FUSE-TRASNSFORMER
30
5CR
31
6CR
1. REMOVE JUMPER ACROSS WIRES 70
AND 9 WHEN RACK ADVANCE TABLE IS
USED.
7CR
2. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
32
DESCRIPTION
1CR
DESCRIPTION
2
DATE
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
USN-72
STEAM
BY
13JULY00 JCN
The Dishwashing Machine Specialists
B 701700
REV.
A
**
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 15A MAX. AT
440/60/3.
2
SW
OFF
L1 L2 L3
ON
51
GND
PL
3
CB
3
DETERGENT
SIGNAL
SEE NOTE 1
3
STOP 5 TSK
1CR 4
START
6
8 2CR
7
3CR
70
MRA
SEE NOTE 2
MSW
9
5CR
10
12
2MOL 13 3MOL
99 4MOL
14
2M
1M
98
3M
98
15
4CR
8
8
15
4
PRIME
2
L1
L2
L3
2MOL
3MOL
4MOL
L1
L2
L3
(IF USED)
42
43
44
45
46
47
48
49
50
51
52
53
1M
2M
3M
4M
33
34
35
DRIVE
MOTOR
36
37
38
WASH
MOTOR
39
40
41
RINSE
MOTOR
54
55
56
MRA
MOTOR
(IF USED)
TKL 2
RINSE AID/
SANI SIGNAL
97
2
L1
L2
L3
2
4M
1MOL
L1
L2
L3
2
1M
IF USED
11 1MOL
2A
FRV
97
L1
2B
L3
FU1
2C
P1
4
FU2
P2
440V
T1
3CR
4
16
16A
16B
2CR
4
1 120V
TSR
TSB
TSW
19
17
17
HC2
18
18
BC1
20
20
HC1
2
2D
2F
2E
DSS
W
3A
21
R
22
SET FOR 5 SECONDS
3
3
6CR
WT
23
CLUTCH
1
7
3
M
8
22
1CR
4 2
2
6
5
2
2
25
OFF DELAY
2CR
2
2
SET FOR 5 SECONDS
3
3
7CR
RT
26
1
7
3
CLUTCH
M
8
4 2
2
6
5
2
28
3CR
29
4CR
30
30
5CR
31
31
6CR
32
32
7CR
OFF DELAY
FRSW
4
3B
3C
3D
29
(IF USED)
TLS
WFSW
RFSW
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
12JUNE00
SCALE
SHEET
1
OF
REV.
A
B
1
DESCRIPTION
REVISED THERMOSTAT CONTACT LOGIC
REVISED SYMBOLS AND WIRE NUMBERS
DATE
BY
REV.
2
2
1CR
DOOR SAFETY SWITCH HOLD-IN RELAY
HC1
WASH TANK HEAT STEAM VALVE
2CR
WASH TANK FLOAT HOLD-IN RELAY
HC2
RINSE TANK HEAT STEAM VALVE
3CR
RINSE TANK FLOAT HOLD-IN RELAY
MRA
MRA MOTOR STOP SWITCH (IF USED)
4CR
FINAL RINSE SWITCH RELAY
MSW
MOTOR STOP SWITCH
5CR
TABLE LIMIT SWITCH RELAY
PL
POWER ON LIGHT
6CR
WASH TANK FLOAT SWITCH RELAY
RFSW
RINSE TANK FLOAT SWITCH
7CR
RINSE TANK FLOAT SWITCH RELAY
R
RINSE TANK DOOR SAFETY SWITCH
1M
DRIVE CONTACTOR
RT
RINSE TANK FLOAT TIMER
1MOL
DRIVE MOTOR OVERLOAD
SW
POWER SWITCH
2M
WASH CONTACTOR
T1
440V:120V TRANSFORMER
2MOL
WASH MOTOR OVERLOAD
TKL
LOW TEMP INDICATOR LIGHT
3M
RINSE CONTACTOR
TLS
TABLE LIMIT SWITCH (IF USED)
3MOL
RINSE MOTOR OVERLOAD
TSB
BOOSTER THERMOSTAT
4M
MRA MOTOR CONTACTOR (IF USED)
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
4MOL
MRA MOTOR OVERLOAD (IF USED)
TSR
RINSE TANK THERMOSTAT
BC1
BOOSTER HEATER STEAM VALVE
TSW
WASH TANK THERMOSTAT
CB
CIRCUIT BREAKER
W
WASH TANK DOOR SAFETY SWITCH
DSS
DOOR SAFETY SWITCH
WFSW
WASH TANK FLOAT SWITCH
FRSW
FINAL RINSE SWITCH
WT
WASH TANK FLOAT TIMER
FRV
FINAL RINSE VALVE
FU-
FUSE-TRASNSFORMER
2
NOTES
2
1. REMOVE JUMPER ACROSS WIRES 70
AND 9 WHEN RACK ADVANCE TABLE IS
USED.
2
2. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
DESCRIPTION
DATE
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
BY
13JULY00 JCN
23OCT03 JAM
The Dishwashing Machine Specialists
B
USN-72
STEAM
701700
REV.
B
L1 L2 L3
GND
P1
FU1
FU2
LINE V
P2
T1
1
1
120V
120V CONTROLS
2
2
FAN
LT
L1 L2 L3
1
TO BOOSTER HEATER
CONTACTORS
L1
L2
L1
L3
L2
PSW
3
WL
4
HLTS1
5
TS1
6
BC1
HLTS2
7
TS2
8
BC2
L3
3
F3-F5
2
F6-F8
L1
20
23
N
GND
LWCO
21
24
22
WL
25
NC
COM
WLP
3
NO
4
BC2
BC1
30
33
31
TOTAL
30kW
32
15KW
36
34
39
37
35
TOTAL
30kW
15kW
15kW
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
5JUNE00
SCALE
SHEET
1
40
38
OF
15kW
REV.
1
41
A
B
C
DESCRIPTION
ADDED WIRES 3 & 4 REF TO WL CONTROL BOARD
REMOVED BC3 REFERENCES
ADDED COOLING FAN TO CABINET
DATE
BC_
BOOSTER CONTACTOR
FU_
FUSE
HLTS_
HIGH LIMIT THERMOSTAT
LT
POWER ON LIGHT
LWCO
LOW WATER CUT-OUT PROBE
PSW
POWER SWITCH
TS_
THERMOSTAT
WL
WATER LEVEL BOARD N.O. CONTACT
WLP
WATER LEVEL PROBE
BY
20JULY00 JCN
17AUG00 JCN
18OCT00 JCN
The Dishwashing Machine Specialists
B
CH-60 NAVY
60 KW BOOSTER-2 CANISTER
701709
REV.
C
CONNECTION #1
CUSTOMER SUPPLIED
440/60/3
15A AT 90°C
MIN. WIRE RATING
STEAM HEAT
MODELS
MAIN CONTROL
CABINET REMOTELY
LOCATED
1L1 1L2 1L3
GND
INPUT BLOCK
GND
GREEN
WHITE
2
3
3
4
5
6
98
70
9
10
16
17
19
20
22
29
30
31
32
97
SP1
SP2
120V DETERG SIGNAL
120V RINSE AID SIGNAL
2
3
3
4
5
6
98
70
9
10
16
17
19
20
22
29
30
31
32
97
SP1
SP2
14
15
2
2
WHITE
WHITE
14
15
2
2
TERMINAL STRIP
IF USED
FROM ASSOC. OVLD
42
43
1M
- TO DRIVE MOTOR GROUND
44
FROM ASSOC. OVLD
FROM ASSOC. OVLD
45
48
46
2M
47
49
50
FROM ASSOC. OVLD
51
3M
52
WIRING TROUGH
LOCATED ON
FRONT OF
WASH/RINSE TANKS
15A AT 90°C
MIN. WIRE RATING
3 - WHITE WIRES
NUMBERED 2 FOR 120V
NEUTRAL
1 - GREEN FOR GROUND
20 - WIRES FOR
CONTROL CIRCUIT
NUMBERED 3, 3, 4, 5, 6,
98, 9, 10, 16, 17, 19, 20,
22, 29, 30, 31, 32, 97, SP1,
SP2, 14, AND 15.
ADD ONE CONTROL
WIRE NUMBERD 70 FOR
MODELS WITH OPTIONAL
MRA TABLE
53
4M
GREEN
33- TO DRIVE MOTOR
34- TO DRIVE MOTOR
35- TO DRIVE MOTOR
15A AT 90°C
MIN. WIRE RATING
- TO WASH MOTOR GROUND
GREEN
36- TO WASH MOTOR
37- TO WASH MOTOR
3 - GREEN WIRES FOR
GROUND
38- TO WASH MOTOR
- TO RINSE MOTOR GROUND GREEN
39- TO RINSE MOTOR
9 - WIRES FOR MOTOR
WIRING NUMBERED 3341
ADD 3 MOTOR WIRES
NUMBERED 54-56 AND 1
GREEN WIRE FOR
MODELS WITH OPTIONAL
MRA TABLE
40- TO RINSE MOTOR
41- TO RINSE MOTOR
- TO MRA MOTOR GROUND GREEN
54- TO MRA MOTOR
55- TO MRA MOTOR
56- TO MRA MOTOR
IF USED
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
5MAR01
SCALE
SHEET
1
NONE
OF
1
REV.
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
USN-72 STEAM
WIRING INTERCONNECTIONS
BY
The Dishwashing Machine Specialists
B
B701728
REV.
STEAM HEAT MODELS
CONNECTION #1
CUSTOMER SUPPLIED
440/60/3
15A AT 90°C
MIN. WIRE RATING
1L1 1L2 1L3
TB1
GND
TO TB2-4
TO TB2-5
SP1
98
31
2E
INPUT BLOCK
RINSE AID SIGNAL
SEE NOTE 2
DETERGENT SIGNAL
SEE NOTE 2
MOTOR CONTACTORS
DRIVE
42
43
44
1M
WASH
45
46
47
2M
RINSE
48
49
50
3M
MRA
51
52
TO TB2-6
TO TB2-14
19
6
5
TO TB2-8
TO TB2-10
3A
15
2B
TO TB2-12
TO TB2-15
3
TO TB2-16
440
2A
14
SP2
TO TB2-17
TO TB2-18
97
70
32
TO TB3-11
TO TB3-12
30
29
22
TO TB3-14
TO TB3-15
2D
16
10
TO TB3-26
TO TB3-19
TO TB2-11
4M
TO TB3-2
TO TB3-3
15A AT 90°C
MIN. WIRE RATING
TO TB2-1
TO TB2-2
9 - WIRES FOR MOTOR WIRING
NUMBERED 33-41
ADD 3 MOTOR WIRES
NUMBERED 54-56 FOR MODELS
WITH OPTIONAL MRA TABLE.
SEE TERMINAL BLOCK TB-2
AND TB-3 DETAIL AT RIGHT.
TO TB2-3
TO TB3-4
TO TB3-5
TO T35-6
TO TB3-7
TO TB3-8
TO TB3-9
33
SEE NOTE 1
GND
3
3 SP 9
2
3
1
2
3
2
3
1
2
1
2
120
WASH TANK TERMINAL BLOCK SEE NOTE 3
FROM DEVICE CONTACTORS
FROM TB1 IN
CONTROL CABINET
IN CONTROL CABINET
TO TB3-13
TO TB3-16
TO TB3
SEE NOTE 1
TO TB3-20
TO TB3-22
TO TB3-23
TO TB3-25
3
3
3
3
4
4
5
5
5 SP 9
440
GREEN
GND
TO TB3-1
TO TB2
TO TB3-10
SP3
4
3B
2C
53
FROM TB1 IN
CONTROL CABINET
FROM DEVICE CONTACTORS
IN CONTROL CABINET
GREEN
MAIN CONTROL
CABINET REMOTELY
LOCATED
TB2 AND TB3 LOCATED IN WIREWAYS ON FRONT OF TANKS
7
3
3
2
2
2
1
1
1
3
3
2
2
120
RINSE TANK TERMINAL BLOCK-
TB1 RATED FOR 20A
SEE NOTE 4
SEE NOTE 5
34
35
36
37
38
39
40
41
54
NOTES:
55
1. MAXIMUM INRUSH CURRENT 2.5 AMPS ON ANY ONE CONDUCTOR.
MAXIMUM CONSTANT CURRENT 1 AMP ON ANY ONE CONDUCTOR.
56
OPTIONAL MOTORIZED RACK ADVANCE
IF USED
2. MAXIMUM ALLOWABLE CURRENT 1 AMP AT 120V.
3. JUMPER BETWEEN TB2-12 AND TB2-13.
4. JUMPER BETWEEN TB3-23 AND TB3-24.
5. AFTER ASSEMBLY CONNECT WIRE #21 BETWEEN TB2-7 AND TB3-17.
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.MCALLISTER
23OCT03
SCALE
SHEET
1
NONE
OF
1
REV.
A
DESCRIPTION
COMPLETE REVISION TO SHOW TERMINAL BLOCK WIRING CONNECTIONS
DATE
BY
23OCT03
JAM
REV.
DESCRIPTION
DATE
USN-72 STEAM
WIRING INTERCONNECTIONS
BY
The Dishwashing Machine Specialists
B
701728
REV.
A
SUPPLY CONNECTION #1
CUSTOMER SUPPLIED
440/60/3
45A AT 90°C
MIN. WIRE RATING
MAIN CONTROL
CABINET REMOTELY
LOCATED
2L1 2L2 2L3
TO TB5-1
3 - WIRES FOR RINSE TANK
HEATER WIRING
NUMBERED 63, 64, 65
SEE TERMINAL BLOCK TB-5
DETAIL AT RIGHT.
TO TB5-2
TO TB5-3
TB1
63
64
RINSE AID SIGNAL
65
HC1
SEE NOTE 2
WASH HEATER
CONTACTOR
DETERGENT SIGNAL
SEE NOTE 2
35A AT 90°C
MIN. WIRE RATING
TO TB4-1
3 - WIRES FOR WASH TANK
HEATER WIRING
NUMBERED 60, 61, 62. SEE
TERMINAL BLOCK TB-4
DETAIL AT RIGHT.
TO TB4-2
TO TB4-3
60
61
62
MOTOR CONTACTORS
DRIVE
42
43
44
1M
TO TB2-4
TO TB2-5
98
31
20
INPUT BLOCK
WASH
45
46
47
2M
RINSE
48
49
50
3M
MRA
51
52
TO TB2-6
TO TB2-8
19
6
5
TO TB2-9
TO TB2-10
3A
15
2B
TO TB2-12
TO TB2-15
3
TO TB2-16
440
2A
14
SP2
TO TB2-17
TO TB2-18
97
70
32
TO TB3-11
TO TB3-12
30
29
22
TO TB3-14
TO TB3-15
17
16
10
TO TB3-18
TO TB3-19
4M
TO TB3-2
TO TB3-3
15A AT 90°C
MIN. WIRE RATING
TO TB2-1
TO TB2-2
9 - WIRES FOR MOTOR WIRING
NUMBERED 33-41
ADD 3 MOTOR WIRES
NUMBERED 54-56 FOR MODELS
WITH OPTIONAL MRA TABLE.
SEE TERMINAL BLOCK TB-2
AND TB-3 DETAIL AT RIGHT.
TO TB2-3
TO TB3-4
TO TB3-5
TO T35-6
TO TB3-7
TO TB3-8
TO TB3-9
33
SEE NOTE 1
GND
3
3 SP 9
2
3
1
2
3
2
3
1
2
1
2
120
WASH TANK TERMINAL BLOCK SEE NOTE 3
TO TB3-10
FROM DEVICE CONTACTORS
FROM TB1 IN
CONTROL CABINET
IN CONTROL CABINET
TO TB3-13
TO TB3-16
TO TB3
SEE NOTE 1
TO TB3-20
TO TB3-22
TO TB3-23
TO TB3-25
3
3
3
3
4
4
5
5
5 SP 9
7
3
3
2
440
GREEN
GND
TO TB3-1
TO TB2
TO TB2-11
SP3
4
3B
2C
53
FROM TB1 IN
CONTROL CABINET
FROM DEVICE CONTACTORS
IN CONTROL CABINET
SP1
RINSE HEATER
HC2 CONTACTOR
50A AT 90°C
MIN. WIRE RATING
TB2 AND TB3 LOCATED IN WIREWAYS ON FRONT OF TANKS
GND
1L1 1L2 1L3
GND
ELECTRIC HEAT MODELS
GREEN
SUPPLY CONNECTION #2
CUSTOMER SUPPLIED 440/60/3
50A AT 90°C
MIN. WIRE RATING
2
2
1
1
1
3
3
2
2
120
RINSE TANK TERMINAL BLOCK-
TB1 RATED FOR 15A
SEE NOTE 4
SEE NOTE 5
34
35
TB4 AND TB5 LOCATED IN JUNCTION BOXES FOR TANK HEATERS
36
37
63A
38
64A
65A
GND
39
60
10kW
40
41
63
54
NOTES:
55
IF USED
60A
61
61A
62
62A
10kW
WASH TANK
HEATERS
63B
64
64B
65
65B
60B
GND
10kW
61B
10kW
62C
1. MAXIMUM INRUSH CURRENT 2.5 AMPS ON ANY ONE CONDUCTOR.
MAXIMUM CONSTANT CURRENT 1 AMP ON ANY ONE CONDUCTOR.
56
OPTIONAL MOTORIZED RACK ADVANCE
TB5
TB4
RINSE TANK
HEATERS
63C
2. MAXIMUM ALLOWABLE CURRENT 1 AMP AT 120V.
64C
3. JUMPER BETWEEN TB2-12 AND TB2-13.
10kW
65C
4. JUMPER BETWEEN TB3-23 AND TB3-24.
5. AFTER ASSEMBLY CONNECT WIRE #21 BETWEEN TB2-7 AND TB3-17.
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.MCALLISTER
7OCT03
SCALE
SHEET
1
NONE
OF
1
REV.
A
B
DESCRIPTION
REMOVE THIRD ELEC CONNECTION. ADD NOTE & TB2 / TB3 DETAIL. RESIZE FOR BETTER CLARITY
COMPLETE REVISION TO SHOW TERMINAL BLOCK WIRING CONNECTIONS
DATE
BY
9 SEPT 03
7OCT03
MJM
JAM
REV.
DESCRIPTION
DATE
USN-72 ELECTRIC
WIRING INTERCONNECTIONS
BY
The Dishwashing Machine Specialists
B
701729
REV.
B
NOTE: THIS DRAWING FOR DETERMINATION OF WIRE SIZE AND QUANTITY OF
WIRES FOR INTERCONNECTION PURPOSES ONLY. NOT INTENDED TO BE AN
ACCURATE DEPICTION OF COMPONENT POSITION IN CONTROL CABINET.
ALL MOTOR AND HEATER WIRES FROM THE DISHMACHINE WILL WIRE
DIRECTLY TO THE CONTROLLING CONTACTOR FOR THAT DEVICE.
CONNECTION #2
CUSTOMER SUPPLIED
440/60/3
50A AT 90°C
MIN. WIRE RATING
ELECTRICAL SUPPLY CONNECTION #1 WILL WIRE TO THE INPUT POWER
TERMINAL BLOCK.
ELECTRIC HEAT
MODELS
CONNECTION #1
CUSTOMER SUPPLIED
440/60/3
50A AT 90°C
MIN. WIRE RATING
50 AMP ELECTRICAL SERVICE FOR CONNECTION # 2 WILL WIRE DIRECTLY TO
THE INPUT SIDE OF CONTACTOR.
WIRES LABELED "SP1" AND "SP2" ARE SPARE WIRES AND ARE INTENDED TO
TERMINATE AT THE TERMINAL STRIP.
1L1 1L2 1L3
2L1
2L2
2L3
86 89 92 87 90 93 88 91 94 -
9 - WIRES FOR RINSE
TANK HEATER
WIRING
NUMBERED 86-94
20A AT 90°C
MIN. WIRE
RATING
6 - WIRES FOR WASH
TANK HEATER
WIRING
NUMBERED 80-85
808381848285-
TO
TO
TO
TO
TO
TO
TO
TO
TO
TO
TO
TO
TO
TO
TO
RINSE
RINSE
RINSE
RINSE
RINSE
RINSE
RINSE
RINSE
RINSE
WASH
WASH
WASH
WASH
WASH
WASH
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
HEATER
#1
#2
#3
#1
#2
#3
#1
#2
#3
87
90
93
HC1
88
91
94
80
83
81
84
82
85
SPARE WIRE # 1
IF USED
FROM ASSOC. OVLD
42
43
44
1M
- TO DRIVE MOTOR GROUND
2
3
3
4
5
6
98
70
17
10
16
11
19
20
22
29
30
31
MAIN
CONTROL
CABINET
REMOTELY
LOCATED
86
89
92
#1
#2
#1
#2
#1
#2
GREEN
INPUT BLOCK
HC2
20A AT 90°C
MIN. WIRE
RATING
GND
GND
GND
FROM ASSOC. OVLD
45
46
2M
47
FROM ASSOC. OVLD
48
49
50
3M
SPARE WIRE # 2
FROM ASSOC. OVLD
51
52
15
120V DETERG SIGNAL
14
53
34 - TO DRIVE MOTOR
2
14
35 - TO DRIVE MOTOR
- TO WASH MOTOR GROUND
GREEN
36 - TO WASH MOTOR
15A AT 90°C
MIN. WIRE RATING
37 - TO WASH MOTOR
38 - TO WASH MOTOR
- TO RINSE MOTOR GROUND
3 - GREEN WIRES FOR GROUND
GREEN
39 - TO RINSE MOTOR
9 - WIRES FOR MOTOR WIRING
NUMBERED 33-41
40 - TO RINSE MOTOR
41 - TO RINSE MOTOR
ADD 3 MOTOR WIRES
NUMBERED 54-56 AND 1 GREEN
WIRE FOR MODELS WITH
OPTIONAL MRA TABLE
- TO MRA MOTOR GROUND
20 - WIRES FOR CONTROL
CIRCUIT NUMBERED 3, 3,
4, 5, 6, 98, 9, 10, 16, 17, 19,
20, 22, 29, 30, 31, 32, 97,
SP1, SP2, 14, AND 15.
ADD ONE CONTROL WIRE
NUMBERED 70 FOR
MODELS WITH OPTIONAL
WHITE 15
WHITE 2
WIRING TROUGH
LOCATED ON
FRONT OF
WASH/RINSE
TANKS
GREEN
1 - GREEN FOR GROUND
32
97
SP1
SP2
TERMINAL STRIP
33 - TO DRIVE MOTOR
3 - WHITE WIRES
NUMBERED 2 FOR 120V
NEUTRAL
2
3
3
4
5
6
98
70
17
10
16
19
20
22
29
30
31
32
97
SP1
SP2
120V RINSE AID SIGNAL
4M
WHITE
15A AT 90°C
MIN. WIRE
RATING
WIRE #17 WILL
CONNECT ON THE
MACHINE END
DIRECTLY TO THE
OPEN TERMINAL ON
THE HI-LIMIT
THERMOSTAT
CARRYING WIRE #95
ON OPPOSING
TERMINAL. WIRE #20
WILL CONNECT TO HILIMIT THERMOSTAT
GREEN
54 - TO MRA MOTOR
55 - TO MRA MOTOR
56 - TO MRA MOTOR
USS O'KANE
IF USED
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY
DATE
J.NEWTON
5MAR01
SCALE
SHEET
1
NONE
OF
1
REV.
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
USN-72 ELECTRIC
WIRING INTERCONNECTIONS
BY
The Dishwashing Machine Specialists
B
B701729 - 1
REV.
-1 MODIFIED 10 ARP 02 BY MJM PER GT
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 45A MAX. AT
440/60/3.
2
SW
OFF
51
ON
3
3
3
GND
TB1-12
SEE NOTE 1
1CR 4
STOP 5
6
TB1-6
TB1-7
PL
L1 L2 L3
CB
3
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
START
8 2CR
7
3CR
70
5CR
10
TB1-15
12
2MOL
13 3MOL
2A
99 4MOL
14
2M
98
TB1-2
2
3M
4M
15
4CR
8
15
PRIME
97
TB1-9
TB1-10
97
TB1-14
TB1-26
3MOL
L1
L2
L3
(IF USED)
4MOL
L1
L2
L3
TKL 2
98
2MOL
L1
L2
L3
TB1-22
1M
1MOL
L1
L2
L3
1M
IF USED
11 1MOL
14
TB1-11
16
TB1-21
TB1-20
17
4M
39
40
41
54
55
56
WASH
MOTOR
RINSE
MOTOR
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
*
WASH TANK FLOAT HOLD-IN RELAY
3CR
*
RINSE TANK FLOAT HOLD-IN RELAY
4CR
*
FINAL RINSE SWITCH RELAY
5CR
*
TABLE LIMIT SWITCH RELAY
6CR
*
WASH TANK FLOAT SWITCH RELAY
7CR
*
RINSE TANK FLOAT SWITCH RELAY
1M
*
DRIVE CONTACTOR
1MOL *
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
*
2MOL *
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
*
3MOL *
RINSE MOTOR OVERLOAD
4M
MRA CONTACTOR
*
4MOL *
MRA MOTOR OVERLOAD
BC1
*
BOOSTER HEATER CONTACTOR
CB
*
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FRV
MRA
MOTOR
(IF USED)
FINAL RINSE FILL VALVE
FU-
*
FUSE-TRASNSFORMER
HC1
*
WASH TANK HEAT CONTACTOR
HC2
*
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
MSW
MOTOR STOP SWITCH
PL
MACHINE RACK ADVANCE LIMIT SWITCH
*
RFSW
60
WASH TANK
HEATERS
RINSE TANK DOOR SAFETY SWITCH
RT
*
RINSE TANK FLOAT TIMER
SW
*
POWER SWITCH
T1
*
440V:120V TRANSFORMER
TB6
WASH HEATER TERMINAL BLOCK
TB7
L1
2CR
4
3
19
TB1-5
3
TB1-4
TB1-8
TB1-19
20
20
FU1
SET FOR 5 SECONDS
6CR
3
WT
23
CLUTCH
1
7
3
M
8
4
2
6
5
22
HC1
P1
3
7CR
RT
26
1
7
3
25
CLUTCH
M
8
4 2
2
6
5
T1
1CR
1 120V
2CR
28
3CR
3
TB1-25
29
29
4CR
30
30
5CR
TB1-3
31
31
6CR
TB1-16
32
32
7CR
TB1-17
2
LOW TEMP INDICATOR LIGHT
TLS
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WFSW
WT
WASH TANK FLOAT SWITCH
*
WASH TANK FLOAT TIMER
NOTES
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 50A MAX. AT
440/60/3.
2
2L1 2L2
OFF DELAY
TB1-18
P2
RINSE HEATER TERMINAL BLOCK
*
2
OFF DELAY
TB1-24
FU2
2
SET FOR 5 SECONDS
4
TKL
440V
22
3
L3
POWER ON LIGHT
RINSE TANK FLOAT SWITCH
R
62
2
HC2
51
52
53
3M
36
37
38
PARTS LOCATED IN CONTROL PANEL
*
MRA
HC1
17
48
49
50
2M
DRIVE
MOTOR
2C
61
4
45
46
47
33
34
35
2B
4
3CR
42
43
44
1M
*
1CR
2L3
HC2
2
1. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
GND
63
64
2
RINSE TANK
HEATERS
65
2
2
2
2
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY J.MCALLISTER SCALE
DATE
SHEET
16OCT03
1
OF
REV.
1
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
BY
The Dishwashing Machine Specialists
B
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
USN-72, ELECTRIC
PANEL WIRING DIAGRAM
701829
REV.
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
33
34
35
TB3-1
TB3-2
TB3-3
TB2-11
5
TSK
6
N.C.
TB2-10
TB2-18
N.0.
TB2-17
14
2A
DETERGENT
SIGNAL
98
TB2-5
TB2-16
TB2-15
2B
15
RINSE AID/
SANI SIGNAL
SEE NOTE 1
TB3-12
70
MRA
9
MSW
9
N.O.
10
36
37
38
TB2-1
TB2-2
TB2-3
TB3-4
TB3-5
TB3-6
39
40
41
TB3-7
TB3-8
TB3-9
54
55
56
DRIVE
MOTOR
WASH
MOTOR
RINSE
MOTOR
TB3-11
TB3-19
FRV 2C
MRA
MOTOR
(IF USED)
TB3-20
16
95
TB2-9
TSW
96
W
TB2-12
HLRT
60
17
TB3-18
HLWT
20
61
3C
3D
TB3-24
TB2-7
TLS
*
RINSE TANK FLOAT SWITCH RELAY
1M
*
DRIVE CONTACTOR
1MOL *
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
*
2MOL *
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
*
3MOL *
RINSE MOTOR OVERLOAD
4M
MRA CONTACTOR
*
4MOL *
MRA MOTOR OVERLOAD
BC1
*
BOOSTER HEATER CONTACTOR
CB
*
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FINAL RINSE FILL VALVE
FU-
*
FUSE-TRASNSFORMER
HC1
*
WASH TANK HEAT CONTACTOR
HC2
*
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
MSW
MOTOR STOP SWITCH
MACHINE RACK ADVANCE LIMIT SWITCH
*
21
TB3-17
22
R
(IF USED)
30
32
POWER ON LIGHT
RINSE TANK FLOAT SWITCH
RINSE TANK DOOR SAFETY SWITCH
POWER SWITCH
T1
*
440V:120V TRANSFORMER
TB4-2
61A
TB6
TB4-3
62A
WASH HEATER TERMINAL BLOCK
TB7
10kW
TKL
WASH TANK
HEATERS
10kW
RINSE HEATER TERMINAL BLOCK
*
TB3-16
LOW TEMP INDICATOR LIGHT
TLS
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WT
31
RFSW
WASH TANK FLOAT SWITCH RELAY
7CR
60A
TB4-1
WASH TANK FLOAT SWITCH
*
WASH TANK FLOAT TIMER
63A
64A
NOTES
10kW
1. REMOVE JUMPER ACROSS WIRES 70
AND 9 WHEN RACK ADVANCE TABLE IS
USED.
TB3-15
TB5
63
TB5-1
64
63B
TB5-2
64B
65
TB5-3
65B
10kW
2. REMOVE JUMPER BETWEEN TB3-23
AND TB3-14 WHEN TABLE LIMIT SWITCH
IS USED.
RINSE TANK
HEATERS
3. INSTALL JUMPERS BETWEEN TB3-23
AND TB3-24.
TB3-14
63C
TB2-13
*
WFSW
29
WFSW
TABLE LIMIT SWITCH RELAY
6CR
RINSE TANK FLOAT TIMER
60B
SEE NOTE 2
TB3-23
*
*
TB2-8
FRSW
3B
FINAL RINSE SWITCH RELAY
5CR
SW
TB4
65A
4
*
*
GND
TB3-22
RINSE TANK FLOAT HOLD-IN RELAY
4CR
RT
SEE NOTE 5
21
*
R
62B
3A
WASH TANK FLOAT HOLD-IN RELAY
3CR
RFSW
GND
61B
DSS
*
PL
62
19
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
MRA
TB3-25
TSR
PARTS LOCATED IN CONTROL PANEL
*
FRV
TB3-21
97
*
1CR
64C
TB2-6
4. INSTALL JUMPER BETWEEN TB2-12
AND TB2-13.
10kW
65C
5. AFTER ASSEMBLY INSTALL WIRE #21
BETWEEN TB2-7 AND TB3-17.
TB3-13
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY J.MCALLISTER SCALE
DATE
SHEET
23OCT03
1
OF
REV.
1
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
BY
The Dishwashing Machine Specialists
B
USN-72, ELECTRIC
MACHINE WIRING DIAGRAM
701830
REV.
120V CONTROLS
1
TO CUSTOMER
DISCONNECT SWITCH
FUSED FOR 15A MAX. AT
440/60/3.
2
SW
OFF
51
ON
3
3
3
GND
TB1-12
SEE NOTE 1
1CR 4
STOP 5
6
TB1-6
TB1-7
PL
L1 L2 L3
CB
3
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
START
8 2CR
7
3CR
70
5CR
10
TB1-15
12
2MOL
13 3MOL
99 4MOL
2A
14
2M
98
TB1-2
2
3M
4M
15
4CR
8
15
PRIME
97
TB1-9
TB1-10
97
TB1-14
TB1-26
3MOL
L1
L2
L3
(IF USED)
4MOL
L1
L2
L3
TKL 2
98
2MOL
L1
L2
L3
TB1-22
1M
1MOL
L1
L2
L3
1M
IF USED
11 1MOL
14
TB1-11
42
43
44
45
46
47
48
49
50
51
52
53
1M
2M
3M
4M
33
34
35
36
37
38
39
40
41
54
55
56
DRIVE
MOTOR
WASH
MOTOR
RINSE
MOTOR
*
PARTS LOCATED IN CONTROL PANEL
1CR
*
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
*
WASH TANK FLOAT HOLD-IN RELAY
3CR
*
RINSE TANK FLOAT HOLD-IN RELAY
4CR
*
FINAL RINSE SWITCH RELAY
5CR
*
TABLE LIMIT SWITCH RELAY
6CR
*
WASH TANK FLOAT SWITCH RELAY
7CR
*
RINSE TANK FLOAT SWITCH RELAY
1M
*
DRIVE CONTACTOR
1MOL *
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
*
2MOL *
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
*
3MOL *
RINSE MOTOR OVERLOAD
4M
MRA CONTACTOR
*
4MOL *
MRA MOTOR OVERLOAD
BC1
*
BOOSTER HEATER CONTACTOR
CB
*
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FRV
MRA
MOTOR
(IF USED)
2B
FINAL RINSE FILL VALVE
FU-
*
FUSE-TRASNSFORMER
HC1
*
WASH TANK HEAT CONTACTOR
HC2
*
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
MSW
MOTOR STOP SWITCH
MRA
2C
PL
4
MACHINE RACK ADVANCE LIMIT SWITCH
*
RFSW
RINSE TANK FLOAT SWITCH
R
3CR
4
16
TB1-21
2D
TB1-20
RINSE TANK DOOR SAFETY SWITCH
RT
*
RINSE TANK FLOAT TIMER
SW
*
POWER SWITCH
T1
*
440V:120V TRANSFORMER
TB6
2CR
4
3
L1
L3
FU1
19
TB1-5
3
TB1-8
TB1-19
TKL
FU2
2E
TB1-4
P1
P2
440V
22
SET FOR 5 SECONDS
6CR
3
WT
23
CLUTCH
1
7
3
M
8
4
2
6
5
22
T1
1CR
1 120V
2
7CR
RT
26
1
7
3
CLUTCH
M
8
4 2
2
6
5
3CR
29
29
4CR
30
30
5CR
TB1-3
31
31
6CR
TB1-16
32
32
7CR
TB1-17
3
TB1-25
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WT
2
2CR
28
TB1-18
TB1-24
TABLE LIMIT SWITCH
TSB
WASH TANK FLOAT SWITCH
*
WASH TANK FLOAT TIMER
NOTES
25
OFF DELAY
4
LOW TEMP INDICATOR LIGHT
TLS
2
OFF DELAY
3
RINSE HEATER TERMINAL BLOCK
*
WFSW
1. REMOVE JUMPER ACROSS N.O. 5CR
CONTACT WHEN TABLE LIMIT SWITCH IS
USED.
SET FOR 5 SECONDS
3
WASH HEATER TERMINAL BLOCK
TB7
2F
TB1-20
POWER ON LIGHT
2
2
2
2
2
2
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY J.MCALLISTER SCALE
DATE
SHEET
23OCT03
1
OF
REV.
1
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
BY
The Dishwashing Machine Specialists
B
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
USN-72, STEAM
PANEL WIRING DIAGRAM
701832
REV.
!!!!!! WARNING !!!!!!
MULTIPLE POWER SOURCES ARE PRESENT
IN THIS CABINET. DISCONNECT ALL POWER
SOURCES PRIOR TO SERVICING.
TB3-1
TB3-2
TB3-3
TB2-11
5
TSK
6
N.C.
TB2-10
TB2-18
TB2-17
N.0.
14
2A
DETERGENT
SIGNAL
98
TB2-5
TB2-16
TB2-15
2B
15
RINSE AID/
SANI SIGNAL
SEE NOTE 1
TB3-12
70
MRA
9
MSW
9
N.O.
10
33
34
35
TB2-1
TB2-2
TB2-3
36
37
38
TB3-4
TB3-5
TB3-6
39
40
41
TB3-7
TB3-8
TB3-9
54
55
56
DRIVE
MOTOR
WASH
MOTOR
RINSE
MOTOR
TB3-11
MRA
MOTOR
(IF USED)
TB3-20
*
WASH TANK FLOAT HOLD-IN RELAY
3CR
*
RINSE TANK FLOAT HOLD-IN RELAY
4CR
*
FINAL RINSE SWITCH RELAY
5CR
*
TABLE LIMIT SWITCH RELAY
6CR
*
WASH TANK FLOAT SWITCH RELAY
7CR
*
RINSE TANK FLOAT SWITCH RELAY
1M
*
DRIVE CONTACTOR
1MOL *
DRIVE MOTOR OVERLOAD
2M
WASH CONTACTOR
*
2MOL *
WASH MOTOR OVERLOAD
3M
RINSE CONTACTOR
*
3MOL *
RINSE MOTOR OVERLOAD
4M
MRA CONTACTOR
*
4MOL *
MRA MOTOR OVERLOAD
BC1
*
BOOSTER HEATER CONTACTOR
CB
*
CIRCUIT BREAKER
DSS
DOOR SAFETY SWITCH
FRSW
FINAL RINSE SWITCH
FINAL RINSE FILL VALVE
FU-
*
FUSE-TRASNSFORMER
HC1
*
WASH TANK HEAT CONTACTOR
HC2
*
RINSE TANK HEAT CONTACTOR
HLRT
HIGH LIMIT RINSE TANK
HLWT
HIGH LIMIT WASH TANK
MSW
MOTOR STOP SWITCH
PL
MACHINE RACK ADVANCE LIMIT SWITCH
*
RFSW
FRV 2C
16A
DOOR SAFETY SWITCH HOLD-IN RELAY
2CR
MRA
TB3-25
17
N.C.
2D
HC1
TB3-26
RINSE TANK DOOR SAFETY SWITCH
RT
*
RINSE TANK FLOAT TIMER
SW
*
POWER SWITCH
T1
*
440V:120V TRANSFORMER
TB6
WASH HEATER TERMINAL BLOCK
TB7
TKL
TSB
TB3-19
16B
18
N.C.
2F
HC1
TB3-26
TSW
TB2-9
19
20
N.C.
W
TB2-12
TB2-14
21
TB2-7
RINSE HEATER TERMINAL BLOCK
*
TABLE LIMIT SWITCH
TSB
BOOSTER THERMOSTAT
TSK
LOW TEMPERATURE CUT-OFF THERMOSTAT
TSR
RINSE TANK THERMOSTAT
TSW
WASH TANK THERMOSTAT
W
WASH TANK DOOR SAFETY SWITCH
WT
21
TB3-17
22
R
LOW TEMP INDICATOR LIGHT
TLS
WFSW
SEE NOTE 5
DSS
3A
2E
HC1
POWER ON LIGHT
RINSE TANK FLOAT SWITCH
R
TSR
TB3-19
PARTS LOCATED IN CONTROL PANEL
*
FRV
TB3-21
97
*
1CR
WASH TANK FLOAT SWITCH
*
WASH TANK FLOAT TIMER
TB3-16
NOTES
TB3-22
FRSW
4
29
1. REMOVE JUMPER ACROSS WIRES 70
AND 9 WHEN RACK ADVANCE TABLE IS
USED.
TB3-15
2. REMOVE JUMPER BETWEEN TB3-23
AND TB3-14 WHEN TABLE LIMIT SWITCH
IS USED.
SEE NOTE 2
TLS
3B
TB3-23
3C
TB2-13
3D
TB3-24
WFSW
(IF USED)
30
31
RFSW
32
3. INSTALL JUMPERS BETWEEN TB3-23
AND TB3-24.
TB3-14
4. INSTALL JUMPER BETWEEN TB2-12
AND TB2-13.
TB2-6
5. AFTER ASSEMBLY INSTALL WIRE #21
BETWEEN TB2-7 AND TB3-17.
TB3-13
DIAGRAM STATE
POWER OFF
DOORS CLOSED
TANKS EMPTY
END OF CYCLE
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
DR.BY J.MCALLISTER SCALE
DATE
SHEET
23OCT03
1
OF
REV.
1
DESCRIPTION
DATE
BY
REV.
DESCRIPTION
DATE
BY
The Dishwashing Machine Specialists
B
USN-72, STEAM
MACHINE WIRING DIAGRAM
701833
REV.
THIS PAGE
INTENTIONALLY
LEFT BLANK
112
THIS PAGE
INTENTIONALLY
LEFT BLANK
112
Part 8: SPECIAL INSERTS
PART 8:
SPECIAL INSERTS
In This Part—
• Service Bulletins
8.1
Introduction
Part 8, Special Inserts contains late breaking service information in the form of Service Bulletins
and other printed information that may be useful to you.
119
Part
PARTS
Part 6:
8: REPLACEMENT
SPECIAL INSERTS
SERVICE BULLETIN
Stemco Thermostat Replacement
Navy Steam Boosters
Stemco Replaces Fenwall
January 20, 2003
P.O. Box 4146
Winston-Salem, NC 27115
Tel: 336-661-1556
Fax: 336-661-1660
Tel: 800-858-4477
REPLACING FENWAL THERMOST
P/N 100128 WITH STEMCO THERMOSTAT
P/N 109069
For all Navy machines that are purchased with steam heated boosters. This notification is
for the replacement of the thermostat in those boosters. To ensure that the thermostat is
placed properly into the booster tank, please follow the diagram listed below. When replacing the the thermostat use part number 109069.
12 Inches
s
che
n
12 i
1. Mark off the measurement of 12 inches from the end of the bulb. This will be at the end
of the 1/2" nut that mounts inside of the tee.
2. Insert the thermostat bulb 12 inches into the booster. Ensure that the bulb is inside one
of the copper water tubes and not coiled up inside of the head. Place plumbers putty on
the 1/2" nut. Tighten down the 1/2" nut inside of the tee.
3. Push the remaining capillary tube to the marking and tighten down the compression nut
so as to lock down the furrell on the capillary. The thermostat replacement is now
complete.
120
Part 6: REPLACEMENT PARTS
115