004-0790-00 - PowerVac G Service and Parts Manual

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PowerVac® G
Service and
Parts Manual
Model Numbers:
Single Vac Units
G3
G5
G7
Twin Vac Units
G6
G10
G14
FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY
004-0790-00 (10/3/17)
© 2010 Midmark Corp. | 60 Vista Drive Versailles, OH 45380 USA | 1-800-643-6275 | 1-937-526-3662 | midmark.com
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Testing & adjustments
Door Limit Switch & On/Off Switch................. B-2
Float.................................................................... B-5
Check Valve....................................................... B-8
Motor & Pump.................................................. B-10
Master Control Panel...................................... B-15
VFD (Variable Frequency Drive)................... B-18
Line Filter.......................................................... B-20
Fuse & Transformer........................................ B-22
PC Board.......................................................... B-25
Contactor.......................................................... B-28
Pressure Sensor.............................................. B-30
Fan.................................................................... B-32
Gauge............................................................... B-34
Separator Tank................................................ B-35
Vacuum Adjustment.................................... B-36
VRV............................................................ B-37
Section C
Section D
Vacuum System Operation.............................. A-2
Electrical System Operation............................ A-3
Troubleshooting Chart...................................... A-4
VFD Error Codes.......................................... A-6
Section E
Troubleshooting
Digitally Linked Files
General Info
Section A
access procedures
Symbols..................................................................iii
Ordering Parts & SN location..............................iii
Specifications........................................................ iv
Model Identification & Compliance Chart........... v
Warranty................................................................ vi
Section B
Table of Contents
GENERAL INFORMATIOn
Front Cover........................................................ C-2
Top Plate............................................................. C-3
Electrical Cover.................................................. C-4
Back Cover......................................................... C-5
VFD Covers.......................................................... C-6
WIRING DIAGRAMS
PowerVac G (Electrical Box).......................... D-2
VFD (Variable Frequency Drive)..................... D-5
Motor Connections....................................... D-6
PC Board............................................................ D-7
Exploded Views
Single Models.................................................... E-2
Twin Models....................................................... E-3
REpair procedures & forms
Single to Twin Conversion..................003-2026-00
(*) Indicates multiple pages due to model / serial number break(s).
© Midmark Corporation 2010 SF-1943
[Revised: 03/30/16]
ii
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General Information
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© Midmark Corporation 2010 SF-1943
Symbols
Ordering Parts
danger
Indicates an imminently hazardous situation which will result in serious or fatal injury if not avoided.
This symbol is used only in the most extreme conditions.
warning
Non-warranty parts orders may be faxed to Midmark using
the Fax Order Form in the back of this manual.
Caution
For warranty parts orders, call Midmark’s Technical Service
Department with the required information.
Hours: 8:00 am to 5:00 p.m. EST (Monday thru Friday)
Phone: 1-800-Midmark (1-800-643-6275)
Indicates a potentially hazardous situation which
could result in serious injury if not avoided.
Indicates a potentially hazardous situation which may result in minor or moderate injury if not avoided. It
may also be used to alert against unsafe practices
The following information is required when ordering parts:
• Serial number & model number
• Part number for desired part
(Refer to Section E: Exploded Views & Parts Lists)
Serial Number Location
Equipment Alert
Indicates a potentially hazardous situation which
could result in equipment damage if not avoided.
Note
Used for special instructions or additional information.
The symbols below may be used in this manual to represent
the operational status of table functions and components.
Indicates the function / component is working properly.
No action required.
Indicates the function / component is working,
but a problem exists.
Indicates the function is not working at all, or that the component is faulty.
Serial Number Label
[Revised: mo/dd/yr]
iii
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powerVac® G Specifications
Classifications: Class 1, Type B Applied Part
Model
Max
users
base unit
hxWxd
G3
3-5
25 x 22 x 20 34 x 22 x 22
Each
Each
base unit - 375
separator - 49
3
230
20
60
30
G5
5-7
25 x 22 x 20 34 x 22 x 22
Each
Each
base unit - 375
separator - 49
3
230
20
60
G7
7-10
25 x 22 x 20 34 x 22 x 22
Each
Each
base unit - 375
separator - 49
3
230
20
G6
6
25 x 22 x 20 34 x 22 x 22
Each
Each
base unit - 375
separator - 49
6
230
G10
10
25 x 22 x 20 34 x 22 x 22
Each
Each
base unit - 375
separator - 49
6
G14
14
25 x 22 x 20 34 x 22 x 22
Each
Each
base unit - 375
separator - 49
6
© Midmark Corporation 2010 SF-1943
separator
hxWxd
[Revised: mo/dd/yr]
Actual Weight
(Lbs.)
Total Voltage
hp
Fuses
drain
connection
size (IN.)
1 1/2”
1/8 A, 250V
Type T
1 1/2”
30
1 1/2”
1/8 A, 250V
Type T
1 1/2”
60
30
1 1/2”
1/8 A, 250V
Type T
1 1/2”
40
60
2 x 30
2”
1/8 A, 250V
Type T
1 1/2”
230
40
60
2 x 30
2”
1/8 A, 250V
Type T
1 1/2”
230
40
60
2 x 30
2”
1/8 A, 250V
Type T
1 1/2”
iv
Amps
hertz Recommended
Inlet
breaker size
connection
(Amps)
size (IN.)
Specifications
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Model Identification / Compliance Chart - PowerVac® G
Complies To:
Model
Description
G3
PowerVac® G Dry Vacuum System - Single - 3 to 5 User
G5
PowerVac G Dry Vacuum System - Single - 5 to 7 User
G7
PowerVac G Dry Vacuum System - Single - 7 to 10 User
G6
PowerVac® G Dry Vacuum System - Twin - 6 to 10 User
G10
PowerVac G Dry Vacuum System - Twin - 10 to 14 User
G14
PowerVac G Dry Vacuum System - Twin - 14 to 20 User
®
®
®
© Midmark Corporation 2010 SF-1943
®
[Revised: mo/dd/yr]
v
Electrical Ratings:
UL
60601-1
CAN / CSA
22.2,
#601.1-M90
EN
60601-1-2
(EMC)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
VAC
+/- 10%
Amps
Cycles (Hz)
230
20
60
230
20
60
230
20
60
230
40
60
230
40
60
230
40
60
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Warranty
Midmark Corporation (“Midmark”) warrants to the original purchaser its new PowerVac®G products and components (except for components not warranted under “Exclusions”) manufactured by Midmark to be free from defects in material and workmanship under normal use and service. Midmark’s obligation under this warranty is limited to the repair or replacement, at
Midmark’s option, of the parts or the products the defects of which are reported to Midmark within the applicable warranty period and which, upon examination by Midmark, prove to be
defective.
Applicable Warranty Period
The applicable warranty period, measured from the date of installation for the original user, shall be (5) years or 10,000 usage hours (whichever comes first) for all warranted products and
components. Ten (10) years or 20,000 usage hours (whichever comes first) for the pump only.
Exclusions
This warranty does not cover and Midmark shall not be liable for the following: (1) repairs and replacements because of misuse, abuse, negligence, alteration. accident, freight damage, or
tampering; (2) products which are not installed, used, and properly cleaned as required in the Midmark “Installation” manual and or PowerVac®G Care Guide for this applicable product; (3)
products considered to be of a consumable nature; (4) accessories or parts not manufactured by Midmark; (5) charges by anyone for adjustments, repairs, replacement parts, installation,
or other work performed upon or in connection with such products which is not expressly authorized in writing in advance by Midmark.
Exclusive Remedy
Midmark’s only obligation under this warranty is the repair or replacement of defective parts. Midmark shall not be liable for any direct, special, indirect, incidental. exemplary, or consequential damages or delay, including , but not limited to, damages for loss of profits or loss of use.
No Authorization
No person or firm is authorized to create for Midmark any other obligation or liability in connection with the products.
THIS WARRANTY IS MIDMARK’S ONLY WARRANTY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. MIDMARK MAKES NOT IMPLIED WARRANTIES OF ANY KIND
INCLUDING ANY WARRANTIES OF MECHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE
PARTS.
© Midmark Corporation 2010 SF-1943
[Revised: mo/dd/yr]
vi
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Section A
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© Midmark Corporation 2010 SF-1943
Operation &
Troubleshooting
[Revised: mo/dd/yr]
A-1
Vacuum System Operation.................. A2
Electrical System Operation ............... A3
Troubleshooting................................... A4
VFD Covers........................................C-6
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Vacuum System Operation
Air, water, and solids from the operatory are
pulled into the separator. Air is expelled out
through the pump exhaust while water and
solids fall to the bottom of the tank. The
vacuum in the separator keeps the check
valve to the drain closed and the tank
gradually fills.
The rising fluid level eventually closes the top
float switch, which turns the pump off. Since
vacuum is no longer being maintained, the
check valve opens allowing water and solids
to drain from the separator. The upper and
lower reed switch floats interact as a latching
circuit with the internal relay to release upon
drain below the bottom float.
From
Operatory
Electrical Operation...............A3
Troubleshooting.....................A4
Note
Vacuum
Earlier production units
had three reed switch
floats. The middle float
was not used and is
not installed in current
production units.
Air (Atmospheric
Pressure)
Water and Solids
Check Valve
(Closed)
Drain
Note: If the power is shut off, the unit will drain
automatically due to a loss of vacuum
regardless of the water level in the tank.
Pump Operating
Exhaust
When the tank drains enough to open the
bottom float switch, the pump starts running
again. This restores vacuum and closes the
check valve. Note: if the power is turned off,
tank will drain completely.
When no instruments (suction tips) are being
used (HVEs shut off for 5 seconds or more)
the system goes into sleep mode to save
energy. Sleep mode pressure is set to 6”Hg.
Vacuum pressure will ramp down from its
normal operating pressure to sleep mode
pressure when the unit goes to sleep. The
sleep mode pressure is maintained at 6”Hg
until the variable frequency drive (VFD)
senses an increase in vacuum pressure is
required when an instrument (suction tip) has
been opened. The VFD will then speed up
the motor to increase vacuum pressure to the
normal operating pressure.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Check Valve
(Open)
Check Valve
(Closed)
Drain
Drain
Pump
Stopped
AA2267
Pump Operating
(Sleep Mode)
All
all
[Revised: 9/20/11]
Exhaust
A-2
Always verify model & serial number
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Electrical System Operation
Vacuum Operation.................A2
Troubleshooting.....................A4
When Main input power supply (230V) is on, it is
supplying line voltage to the vacuum pump electrical
system.
The Main input power supply (230V) is supplied to
the contactor, thermostat, fans, transformer, variable
frequency drive (VFD), and the line filter. When the
On/Off switch or master control switch are in their off
state or the front panel is removed from the unit, the
contactor will remain open and the input power will be
connected to the input side of the contactor, thermostat, fans, and the transformer only.
Note
Timer Bd. Std. after SN: V1648735 units prior to this can be updated
YL YL
When the contactor is energized, it closes and connects the main input power supply to the line filter.
Main input power supply is then applied to the VFD
through RL1 and SR2 (single phase).
When instruments (suction tips) are in use, the vacuum pump is running and claws are turning to build up
vacuum pressure. The pressure sensor is constantly
measuring the amount of vacuum pressure. When
the pressure level drops below the vacuum set point
(12”Hg – factory setting), the pressure measurement initiates the VFD to speed up the motor. When
pressure is above set point the VFD slows the motor
down.
When the vacuum is shut off from the remote switch
the timer starts and will turn on the vacuum for one
minute every two hours. (Standard on new units,
older units can be upgraded)
1
CTS
2
3
Pressure
Sensor
Transformer
VFD
Box
Fans
Contactor
Parallel
Connection
The transformer’s output sends 24 volts AC to the PC
board. 24 volts AC power is used to control the door
limit switch, hour meter, and floats. The electronics on
the PC board convert 24 VAC to 24 VDC for the pressure sensor though the means of a connector.
ON
Themostat
Line Filter
AA2486i
230 VAC
Line Voltage
Note
On twin units a parallel cable (4-pin Master / 6-pin Slave) connects the two base units on the side of the electrical box. The plumbing is connected using a tee assembly.
The parallel connection is controlled between variable frequency drives in a twin configuration. Twin units run the same as a single unit. Keypad, hour meter and fans are
located on the outside of the base unit. Pressure sensor and float are located on the separator tank.
© Midmark Corporation 2010 SF-1943
[Revised: 11/2/15]
A-3
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Troubleshooting Chart
Problem
Display/Symptom
Motor not running NA
Or Breaker keeps
tripping.
Cause
No power.
NOTE:
When working on
twin unit unplug
parallel harness
Check
Check on/off switch on front of the base.
Verify on/off switch is in the on postion.
Check disconnect box/ circuit breaker (Main).
Verify disconnect box/circuit breaker (Main) is in
the on postion.
Low Voltage Harness
disconnected/loose.
Check door limit switch, on/off switch and
master control panel harness.
Secure/Replace harness connections.
Faulty Switch
Check LED light “D4”, if “ON” only check “Low
Voltage”. If LED light is not on, preform checks
on Door Limit switch, On/Off switch, and
master control panel. Refer to: Section B “PC
Board” to check LED light, “Door Limit Switch”,
“On/Off Switch” and “Master Control Panel”.
Replace Switch
Separator tank not
draining.
"Possible Clog in tank. Remove lid to see if
tank is full.
Remove clog.
Check valve is stuck closed. Refer to section B
check valve.
Repair/ Replace check valve
Turn power off and unplug float harness from
base unit. Turn unit back on, if the unit runs
check Section B: Float
Replace Float Assembly
Wire harness between
VFD and PC board
loose or broken.
Check for loose or broken wire harness between VFD and PC board.
Ensure grey cable is plugged into VFD and PC
board.
Secure/Replace harness connections.
Pump is locked up.
Feel for pump pulley drag or sticking. Refer to
section B pump.
Contact Midmark Technical Service.
1-800-643-6275
PC board
Malfunctioning.
Turn main power supply on. (Keep unit turned
Replace Main PC Board
off.)
Unplug wire harness from J6 on PC board.
Test resistance. Set meter to Ώ. Meter Reading > 1 Ώ Refer to Section B PC Board
Check Daughter Card. Refer to Section B
Daughter Card
Contactor not working
properly.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Action
Replace Main PC Board
Check Contactor. Refer to: Section B Contactor Replace Contactor.
All
all
[Revised: 11/2/16]
A-4
Always verify model & serial number
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Troubleshooting Chart
Problem
Display/Symptom
Cause
Check
VFD not working properly.
Check if there is an error code displayed. Refer
to: Section A VFD Error Code Chart
Follow required actions in testing.
Lights not working on PC board check Fuse.
Refer to: Section B Fuse and Transformer.
Replace Fuse
Lights not working on VFD, check Line Filter.
Refer to: Section B Line Filter
Secure/Replace harness connections.
Lights not working on VFD, check Contactor.
Refer to: Section B Contactor
Replace Contactor
Lights not working on PC board check transformer Refer to: Section B Fuse and Transformer.
Replace Transformer
Lights not working on VFD. Check Ohms at J6
terminal. Greater than 5 ohm. Refer to Section
B PC Board (main power on, unit power on, J 6
Unplugged)
Replace PC Board
Lights not working on VFD. Disconnect drive
harness at J6 Location to check for 24V DC. If
Voltage is not present Ohm out drive harness.
Refer to section B VFD Variable Frequency
Test.
Replace Drive Harness
NOTE:
When working on
twin unit unplug
parallel harness
Action
Lights not working on VFD. Check for line Volt- Replace VFD
age (208-230V) at incoming terminal strip on
VFD. If Line voltage is present. Refer to section
D Variable Frequency Drive
Operatory has low NA
or no suction.
Motor bad.
Preform all motor checks. Refer to: Section B
Motor & Pump
Replace Motor
Motor not running.
See “Problem” , motor not running or
breaker keeps tripping
See “Action” , motor not running or
breaker keeps tripping.
Check hoses and bulkhead fittings.
Secure/Replace hoses or bulkhead connections.
Check Separator lid gasket.
Replace Separator Lid Gasket
Check drain line check valve. Refer to: Section
B Check Valve
Replace Check Valve.
Exhaust Hose Clogged
Remove exhaust hose to see if suction increases. if suction increased check for clog.
Unclog or replace
exhaust line
Pressure sensor not
working properly.
Check pressure sensor. Refer to: Section B
Pressure Sensor
Replace pressure sensor.
Leaking or loose
connection.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
[Revised: 11/2/16]
A-5
Always verify model & serial number
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Troubleshooting Chart
Problem
Motor cutting out
or running at a
reduced speed.
Motor running at
top speed all the
time.
Oil Leak
Display/Symptom
N/A
NA
Leaking Oil
Cause
Check
Action
Ambient temperature too
high.
Check Equipment Room Temperature should be
40° to 104 ° degrees Fahrenheit or
4 - 37 Celsius.
Refer to installation manual site requirements
Contactor not working
properly.
Check Contactor. Refer to: Section B Contactor
Replace Contactor
Pump is locked up.
Refer to: Section B Pump
Contact Midmark Technical Service. 1-800643-6275
Exhaust Hose Clogged
Remove exhaust hose to see if suction increases.
if suction increased check for clog.
Unclog or replace exhaust line
Motor not running.
See “Problem” , motor not running or
breaker keeps tripping.
See “Action” , motor not running or
breaker keeps tripping.
Pressure sensor not
working properly.
Check pressure sensor. Refer to: Section B Pressure Sensor
Replace Pressure sensor
Plumbing lines leaking.
Check office plumbing system for leaks.
Repair/Replace Plumbing Lines
VRV Malfunctioning
Check VRV. Refer to: Section B VRV
Adjust/Replace VRV
Oil Reservoir is overfilled.
Check site glass. Refer to section B Pump
Drain Oil
Pump is overheating
Check ambient temperature in the room. Temperature should be 40° to 104° F or 4° to 40° C
Contact a certified specialist to adjust temperature.
Check Clearance around unit. Allow 12inch on the Adjust base unit to clearance specifications.
front and right side and allow 6 inches on the left
side and back
Pump is locked
up.
Pump pulley not spinning
freely.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Check if fans are working. Refer to section B
Fans
Replace fans
Oil leak is persistent
N/A
Contact Midmark Technical Service.
1-800-643-6275
P-Trap is clogged.
Remove drip leg to check for plug.
Remove clog. Go to next step!
Water in pump.
remove drain plug at the back of the pump exhaust chamber. Refer to section B pump.
Drain water.
All
all
[Revised: 11/2/16}
A-6
Always verify model & serial number
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VFD (Variable Frequency Drive)
Error Codes
Problem
VFD Error Code
Display/Symptom
Cause
Check
Action
oL1 Motor Overload
Pump is locked up.
Refer to: Section B Pump
Contact Midmark Technical Service.
1-800-643-6275
oL2 Drive Overload
Pump is locked up.
Refer to: Section B Pump
Contact Midmark Technical Service.
1-800-643-6275
oL3 Over torque
Detection 1
Pump is locked up.
Refer to: Section B Pump
Contact Midmark Technical Service.
1-800-643-6275
oL4 Over torque
Detection 2
Pump is locked up.
Refer to: Section B Pump
Contact Midmark Technical Service.
1-800-643-6275
FbH Excessive Pressure Pressure sensor failure.
(Feedback Sensor)
Refer to: Section B Pressure Sensor
Replace pressure sensor.
FbL Feedback Loss
(Feedback Sensor)
Check unit/units are hooked up in the operatory
j-box.
Secure Connections at J-Box
Check HVE, saliva ejector tips are closed
Close Tips
Check clean outs are closed
Close Clean Outs
Check hoses and bulkhead fittings.
Secure/Replace hoses or bulkhead
connections.
Check Separator lid gasket.
Replace Separator Lid Gasket
Check drain line check valve. Refer to: Section B
Check Valve
Replace Check Valve.
Harness not properly connected to base unit or
pressure sensor on tank.
Refer to: Section B Pressure Sensor
Replace pressure sensor.
There is a broken wire in
one of the harnesses.
Check PC Board Pressure Sensor Harness at
J13.
Repair/Replace PC board pressure harness.
The 24V power supply on
the control PCB daughter
card has failed.
Check Daughter Card. Refer to Section B
Daughter Card
Replace Main PC Board
Pressure sensor failure.
Refer to: Section B Pressure Sensor
Replace pressure sensor.
One of the wires in the
motor harness is creating a
short circuit.
Refer to Section D: Motor Connections
Replace motor harness
The motor insulation is
damaged.
Refer to Section D: Motor Connections
Replace Motor
GF (Ground Fault)
© Midmark Corporation 2010 SF-1943
[Revised: 11/2/16]
Plumbing System is not
Complete
A-7
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VFD (Variable Frequency Drive)
Error Codes
Problem
VFD Error Code
Continued
Display/Symptom
LF Output Phase Loss
LF2 Output Current
Imbalance
oC Overcurrent
Uu1 or Uu Undervoltage
© Midmark Corporation 2010 SF-1943
[Revised:11/2/16]
Cause
Check
Action
VFD has loose connections.
Check red(V/T2), blue(W/T3) & black(U/T1) wire
connections on the VFD and the motor. Refer to
Section D VFD
Secure/Replace motor harness
Damaged Motor
Refer to Section D: Motor Connections
Replace Motor
Bad drive transistor
Contact Midmark Technical Service
Replace VFD
VFD has loose
connections.
Check red(V/T2), blue(W/T3) & black(U/T1) wire
connections on the VFD and the motor. Refer to
Section D VFD
Secure/Replace motor harness
Damaged Motor
Refer to Section D: Motor Connections
Replace Motor
Bad drive transistor
Contact Midmark Technical Service.
1-800-643-6275
Replace VFD
One of the wires in the
motor harness is creating a
short circuit.
Refer to Section D: Motor Connections
Replace motor harness
The motor overheated
repeatedly causing
insulation to be damaged
Refer to Section D: Motor Connections
Replace motor
Pump locked up
Refer to Section B: Pump
Contact Midmark Technical Service.
1-800-643-6275
The power has been
momentarily interrupted.
Check if unit was powered off.
Turn unit back on.
Incoming voltage is low.
Check incoming voltage. (208-230)
Contact a certified electrician.
Faulty Switch
Check On/Off switch. Refer to: Section B On/Off
Switch
Replace ON/Off switch.
Check Door Limit switch. Refer to: Section B
Door Limit Switch
Replace Door Limit Switch
Check Master control panel. Refer to: Section B:
Master Control Panel
Replace Master Control Panel
Output connections from
the contactor are loose.
Check wire connections on contactor.
Secure Connections.
Input power connections to
the VFD are loose
Check wire connections on VFD
Secure Connections.
The internal VFD circuitry
has worn out.
Refer to section B VFD Variable Frequency Test.
Replace VFD
A-8
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VFD (Variable Frequency Drive)
Error Codes
Problem
VFD Error Code
Continued
Display/Symptom
ou Overvoltage
oH or oH1 Heatsink
Overheat
SC Communication Error
© Midmark Corporation 2010 SF-1943
[Revised: 11/2/16]
Cause
Check
Action
Incoming voltage high
Check incoming voltage.
Contact a certified electrician.
Power surge.
Check incoming voltage. Refer to Section B
Contactor
Cycle power to unit.
Ground fault in the VFD
circuit causing the
capacitors to overcharge.
Perform continuity check on
motor harness for shorts. Refer to section D: Motor Connections
Replace Motor Harness
Perform continuity check
on the motor windings for shorts. Refer to section
D: Motor Connections
Replace Motor
Ambient temperature is too
high.
Check room temperature. Refer to Installation
Manual - Specifications
Allow room to cool or add ventilation fan to
room.
Pump locked up
Refer to section B Pump
Contact Midmark Technical Service.
1-800-643-6275
VFD Cooling Fan has
malfunction.
Check VFD Fan.
Replace VFD.
Front display board not
communicating.
Remove Ethernet cable from back of front display. Replace front display board.
Re power. If no error code on main drive
controller.
Main drive controller not
communicating
Remove Ethernet cable from back of front display. Replace VFD
Re power. If error code remains on main drive
controller.
A-9
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Section B
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© Midmark Corporation 2010 SF-1943
Testing &
Adjustments
[Revised: mo/dd/yr]
B-1
Door Limit Switch & On/Off Switch....................... B-2
Float..................................................................... B-5
Check Valve......................................................... B-8
Motor & Pump......................................................B10
Master Control Panel......................................... B-15
Low Voltage........................................................ B-17
VFD (Variable Frequency Drive)........................ B-19
Line Filter........................................................... B-20
Fuse & Transformer............................................ B-22
PC Board............................................................ B-25
Contactor............................................................ B-28
Pressure Sensor................................................ B-30
Fan..................................................................... B-32
Gauge................................................................ B-34
Separator Tank................................................... B-35
Vacuum Adjustment........................................... B-36
VRV ................................................................... B-37
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Door Limit Switch & On/Off Switch
(Circuit Breaker)
Door Limit Switch Test........................B-3
On/Off Switch Test..............................B-4
Location & Function
With facility power (230 VAC) supplied to the system...
The transformer continuously supplies 24 VAC to the normally-open
door limit switch.
With the front access cover in place...
The plastic bumper on the top right side of the access cover, trips
the door limit switch causing it to close.
Door Limit Switch
When the limit switch is closed, 24 VAC flows thru the switch to the
PowerVac G circuit breaker (On/Off) switch. With the circuit breaker
switch ON, current is supplied to the remote wall switch (if applicable).
Note
If the facility does not have a remote wall switch, the PowerVac
G circuit breaker serves as the On/Off switch for the system.
When the front access cover is removed...
The door limit switch opens and stops current flow to the PowerVac
circuit breaker. This is a safety feature that prevents the system from
operating with the cover removed.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
On/Off Switch
(Circuit Breaker )
All
all
[Revised: mo/dd/yr]
B-2
Always verify model & serial number
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Door Limit Switch
Test
Step 2: Turn power off.
Remove front cover.
Caution
Door Limit Switch is a safety device.
If switch is not working, do not bypass. warranty will be
void if switch is bypassed. If both tests fail, it must be replaced.
Step 1:
Door Limit Switch Function.................B-2
On./Off Switch Testing........................B-4
Front Cover Access............................C-2
Note: Refer to Section C: Front Cover.
Step 5: Remove mounting screw for door limit switch.
Disconnect electrical leads.
Turn power off at on/off switch and main power supply box.
Remove electrical cover.
Turn power on at on/off switch and main power supply box.
Check to see if D4 LED light is on.
If light is on, door limit switch is ok.
If light is off, continue with step 2.
Mounting Screw
Note
When working on Twin units,
unplug parallel harness.
Note: Refer to Section C Electrical Cover
Caution
COM
During this step, the motor belt and
pulley may spin with front cover off. Stay clear
and keep everything out of the vacuum base!
NC
Activation Button
Note: If motor starts up, quickly take pressure off switch. Plastic bumper may be obstructed or damaged. Check plastic bumper on door for damage. If damaged, switch it with plastic
bumper on opposite side of door until a
replacement can be ordered. If motor doesn’t start, continue to step 4.
AA2290
Step 6: Test continuity. Set meter to Ώ.
Place meter probes on COM and NO terminals.
Note: Check switch “tripped” and “untripped”.
Step 4: Turn power off.
With switch “untripped”...
Meter Reading
Required Action
OL
Limit switch - OK
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Caution
When testing components with power on
use care to prevent electrical shock.
With switch “tripped”...
Meter Reading
Step 7: Install front cover.
Required Action
Replace limit switch
OL
less than 5 ohms
Replace limit switch
less than 5 ohms
Limit switch - OK
All
all
[Revised: 2/17/11]
NO
Step 3: Turn power on and depress
activation button with a
screwdriver.
B-3
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On/Off Switch (Circuit Breaker)
Door Limit Switch Function.................B-2
Door Limit Switch Testing...................B-3
Front Cover Access............................C-2
Note
Test
Step 1:
When working on Twin units,
unplug parallel harness.
Turn power off at on/off switch and main power supply box.
Remove electrical cover.
Turn power on.
Check to see if D4 LED light is on.
If light is on, on/off switch is ok.
If light is off, continue with step 2.
Caution
When testing components with power on
use care to prevent electrical shock.
Note: Refer to Section C Electrical Cover
Step 2: Remove front cover.
Step 4: Connect switch leads and install front cover.
Note: Refer to Section C: Front Cover.
Step 3: Test continuity. Set meter to Ώ.
Disconnect leads from switch terminals.
Place meter probes on COM and NO terminals.
Note: Check switch “tripped” and “untripped”.
AA165501i
With switch “untripped”...
Meter Reading
© Midmark Corporation 2010 SF-1943
Required Action
Replace Switch
OL
Replace Switch
less than 5 ohms
Serial Numbers:
Meter Reading
Switch - OK
OL
Models:
With switch “tripped”...
Required Action
less than 5 ohms
Switch - OK
All
all
[Revised: 2/17/11]
B-4
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Float Assembly
Float Wire
Connection
Check Float........................................B-6
Location & Function
On earlier production units the float assembly
contained three float (reed) switches mounted on
a bracket at different intervals. Current units only
have two float switches.
The reed switch has contacts that remain open
until the liquid in the separator rises, causing the
float to rise until the magnet contacts the reed
switch.
Note
Earlier production units
had three reed switch
floats. The middle float
was not used and is
not installed in current
production units.
When the magnet contacts the reed switch, the
open contacts inside the reed closes.
When the top float switch closes, the vacuum
pump stop running until the bottom float opens
and the cycle starts again.
Reed Switch
Contacts are
Open Until
Magnet Closes
Float
The upper and lower floats interact as a latching
circuit with the internal relay to release upon drain
below the bottom float. The magnet in the float is
to activate the reed switch within the stem.
Magnet
Float
To check if float switches are preventing pump from running...
A) Turn power off at on/off switch.
B) Remove float wire connection from rear of base by un-threading connector and removing.
C) Turn power back on at on/off switch.
D) If pump runs the tank is either full (not draining) or there is a issue with the floats proceed to next page.
E) If the pump doesn’t run proceed with troubleshooting the pump base.
Check
Equipment Alert
Running pump with float wire connection removed from base other than to briefly troubleshoot can cause damage to the pump.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Result
Float connection Pump starts Troubleshoot
removed from
running
floats
base
Pump still
not running
All
Required
Action
Troubleshoot
Pump
all
[Revised: 11/2/16]
B-5
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Float Assembly
Bottom
Float
Closed
Position
Float Function.....................................B-5
Float Harnes Continuity......................B-7
Section C - Electrical Cover Access...C-1
Check
Down
Position
Note
Note
Earlier production units
had three reed switch
floats. The middle float
was not used and is
not installed in current
production units.
A quick test to see if the floats are preventing the pump from running (full tank) is to to
unplug the float switch asm from the front of the
vacuum base. The pump will run if the issue is
with the floats or tank is full.
Note
When working on Twin units,
unplug parallel harness.
This is for testing purposes only! Continuing to
run the vacuum with this connector unplugged
can cause damage to the pump.
At J4 Check Each Connection
(BOT, MID & TOP)
to the Last One (COM)
To check float switches...
A) Turn power off at on/off switch and main power supply box.
B) Remove gasket on separator lid.
C) Lift lid/float assembly out of tank and lay across top of tank, put floats in down position.
D) Remove electrical panel cover.
E) Turn supply power and unit ON.
F) Set meter to Ώ.
G) Lift bottom float to closed position. Measure resistance from COM to BOT, MID and TOP at J4 on PC board. Verify bottom float LED light is “On”, on the PC board while float is closed.
H) Repeat step G for the middle and top floats.
I) With all floats closed, lower the top float to the down position, then middle float, and finally the bottom . The motor should not start until the bottom float is down.
Floats
R16
J4
BOT
MID
TOP
COM
J11
Note: Verify readings are within range. If not, check float harness continuity on next page.
9
Note
LED’s on PC board illuminate to indicate the following...
D5 – BOTTOM FLOAT - bottom float switch is closed.
D10 – MIDDLE FLOAT - middle float switch is closed.
D7 – TOP FLOAT - top float switch is closed.
LED
Lights
on PCB
R24
D7 D9 R13
Top Float
D10 D8 R10
Middle Float
R7
Bottom Float
D5 D6
J17
8
AA2331
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 9/20/11]
B-6
Check
Meter
Reading
Required
Action
With Float Up
< 5 ohms
OK
With Float
Down
OL
OK
Float Up or
Down
Out of
Range
Check Float
Harness
Continuity (See
next Page)
Always verify model & serial number
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Float Assembly
Check
To check float harness...
Common
A) Turn power off and unplug float harness from base unit.
B) Lift lid/float assembly out of tank and lay across top of tank.
C) Move floats to down position.
C) Set meter to Ώ. Probe end of float harness, each pin (1, 2 & 3) to pin # 4.
When checking each float perform steps D thru F.
D) Lift bottom float to closed position.
E) Measure at the harness between pin # 4 and the pin of the raised float (# 3).
Verify readings are within range. If not replace float assembly.
Bottom Float
3
4
1
2
Top
Float Middle
Float
Note: Motor should stop after top float switch is raised.
Float in
Down
Position
Note
When working on Twin units,
unplug parallel harness.
Top Float
Middle Float
Bottom Float
Meter
Reading
Required
Action
With Float in
Closed Position
< 5 ohms
OK
With Float in Down
Position
OL
OK
Float Up or Down
Out of Range
Check
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
AA2341
Float in
Closed
Position
Earlier production units
had three reed switch
floats. The middle float
was not used and is
not installed in current
production units.
Replace Float Harness
All
all
[Revised: 9/20/11]
Note
B-7
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Check Valve
Check Valve Test................................B-9
Location & Function
The check valve located in the drain allows the separator to
drain upon removal of vacuum pressure. When the pump is
not running, the valve opens, allowing liquids to drain. If the
pump is running the valve closes to keep air in the drain from
back flushing into the system.
Note
When installing check valve in horizontal position, confirm
the hinge for the flapper is on top of the valve.
Each vacuum pump in a multiple pump installation requires a
check valve to be installed into the intake line.
This prevents loss of suction pressure when one pump in the
system is turned off. If no check valve is present, flow will be
allowed through the “off” pump, creating a loss of suction of
the rest of the system.
Vacuum Pressure Keeps Valve Closed when Pump is Running
Multiple Units have two
additional check Valves located in the Tee Assembly
When Pump Stops Valve Opens for Liquids and Solids to Drain
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
AA2300
all
[Revised: mo/dd/yr]
B-8
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Check Valve
Check Valve Function.........................B-7
Check
Note
When working on Twin units,
unplug parallel harness.
Step 3: Turn power off.
Step 4: Allow unit to drain completely.
Equipment Room
Operatory
Step 5: Pull drain hose out of drain.
Turn power on and place
hand over end of drain hose.
On/Off Switch
Step 1: Vacuum 1-2 gallons of fresh water into system through operatory lines.
Note: If you feel suction, check valve is stuck, replace check valve.
If no suction is felt, check valve is good.
Step 2: Turn vacuum off and ensure that water drains from
separator.
Note: If water does not drain out, remove lid and see if valve is clogged. Flush and clean tank (Refer to: Section B Separator Tank) to clean valve If not draining replace valve. If water drains out, continue with step 3.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-9
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Motor & Pump
Check Motor (Lock-up)..................... B-11
Check Motor (Electrical)...................B-12
Check Pump.....................................B-13
Pump, Change Gear Lube...............B-14
Location & Function
The 3 HP, three phase, 230 volt, electric motor
is located on an adjustable motor mount and
is easily accessible. There is an automatic belt
tensioner within the pulley system.
Motor
The motor has a resettable thermostat that will
open when the motor overheats. It is
temperature controlled, so when it gets too hot
it will open and when it cools off enough it will
close again. Since the thermostat directly
controls the state of the motor, there is no
warning for when the motor will start or stop.
The dry vacuum pump requires no lubricant
in the pumping chamber. The pump is a dual
rotary claw type and belt-driven by the motor.
Rotary Claw Pump
warning
Motors are thermally protected with automatic reset.
Unit may start without warning.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-10
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Motor (Lock-up)
Motor & Pump Location....................B-10
Check Motor (Electrical)...................B-12
Check Pump.....................................B-13
Pump, Change Gear Lube...............B-14
Section C Access Procedures............C-1
Section D Wire Diagrams...................D-1
Check
To check motor (lock-up)...
A)
B)
C)
D)
E)
Turn power off at on/off switch and main power supply box.
Remove front cover. Refer to Section C access procedures.
Use belt to check pulley. If locked up try to work loose with belt.
Remove belt if unable to work loose.
Verify motor pulley moves freely, if not motor bearing is locked up, replace motor.
Note
When working on Twin units,
unplug parallel harness.
Motor Pulley
Belt
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-11
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Motor (Electrical)
Motor & Pump Location....................B-10
Check Motor (Lock-up)..................... B-11
Check Pump.....................................B-13
Pump, Change Gear Lube...............B-14
Section C Access Procedures............C-1
Section D Wire Diagrams...................D-1
Check
warning
P1 P2 PC A1 A2 +V AC AM AC MP
Motors are thermally protected with automatic reset.
Unit may start without warning. If equipment room is too hot, allow to cool, motor will restart on it’s own.
Note
When working on Twin units,
unplug parallel harness.
S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP
+1
+2
S/L2
T/L3
B1
B2
U/T1
V/T2
W/T3
Disconnect
and Check
Ground Stud
To check motor...
A) Turn power off at on/off switch and main power supply box.
B) Remove electrical cover.
C) Remove VFD covers.
D) Set meter to Ώ.
E) Disconnect wires from U/T1 (Black), V/T2 (Red) and W/T3 (Blue).
F) Check wire connections, “Black to Red”, “Black to Blue” and “Red to Blue”.
G) Check ground connections, “Black to Ground”, “Red to Ground” and “Blue to Ground”.
Note: Refer to: Section D for Wire Diagrams and Section C for Access Procedures for Electrical Cover and VFD box.
If checks are out of range and if all “Probable Causes” for motor not running (see Sec A - Troubleshooting Chart)
have been checked and the motor still doesn’t run, replace motor.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 5/1/13]
B-12
Checks
Check Each to Ground
Check
Meter
Reading
Required
Action
Wire
Connections
1.2 +/- .3
ohms
Motor - OK
Ground
Connections
OL
Motor - OK
Always verify model & serial number
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Pump
Note
Motor & Pump Location....................B-10
Check Motor (Lock-up)..................... B-11
Pump, Change Gear Lube...............B-14
When working on Twin units,
unplug parallel harness.
Check
Step 1: Turn power off at on/off switch and main power supply box.
Step 3: Check gear lubricant level.
Add if below 1/3 full. Use only Midmark
gear lube P/N 064-0028-01.
Step 2: Check pulley to see if locked up.
• Use belt to check pulley.
• Try to work pulley loose, turn with hand.
Note: If gear lube has been added two times or more during the past year,
call Dealer for service. If gear lube is not light yellow / clear opaque
cover, it will need to be changed. Refer to: Section B Pump, Change
gear lube.
Note: If pulley does not move, continue with Steps 3, 4 and 5.
Max
Inlet
Add
Drain Plug
Add Gear Lube Here
Step 4:
To drain pump.
• Check for water in pump.
• Remove drain bolt off pump & barb fitting at the bottom of the p-trap to release any water inside.
• When pump & P-trap is done draining replace drain bolt and the barb fitting.
Note: Water may flood out, set funnel under bolt hole to move water from
pump into a bucket or tray.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Step 5:
After draining you must...
• Remove inlet hose either at pump or at separator.
• Pour 2 ounces (1/4 cup) of conditioning fluid (002-1910-02) into pump and let soak. (or WD-40 if unavailable.)
• Try to work pulley loose as fluid migrates through pump.
• If pump will not free up order Timer/Conditioning Fluid Kit (002-1910-00) and socket (002-1911-00).
• If pump rotates freely replace inlet hose, restore power, and start vacuum. Order Timer/Conditioning Fluid Kit if needed.
All
all
[Revised: 12/15/15]
B-13
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Pump
Motor & Pump Location....................B-10
Check Motor.....................................B-12
Check Pump.....................................B-13
Change Gear Lube
The PowerVac® G gear lube should be changed every 10 years.
It will hold approximately 2/3 of a quart of Midmark PN 064-0028 which can be ordered in a liter.
To change gear lube...
A)
B)
C)
D)
E)
F)
G)
H)
I)
J)
Run PowerVac G for 5-10 minutes.
Disconnect main power supply to the PowerVac G.
Remove front cover. Refer to: Section C Front Cover
Remove venting valve plug.
Siphon gear lube out from venting valve hole.
Fill in new gear lube until the level is slightly above the middle of the site gauge.
Verify seal ring on vent valve is undamaged.
Replace vent valve plug and or drain plug.
(See Note)
Clean any gear lube that leaked on inside or outside of housing.
Replace front cover. Connect main power supply and run pump for 5 minutes and recheck the gear lube on the site gauge.
Note:
Venting
Valve
Plug
Site
Gauge
If you do not have a siphon hose, you may access the drain plug located below the site gauge.
Place a oil absorbent mat under drain hole and funnel the gear lube out the side access hole in housing
into a drain tray. Dispose of gear lube in compliance with
applicable regulations.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Drain
Plug
Access Hole
in Housing
All
all
[Revised: 5/1/13]
B-14
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Master Control Panel
Master Control Panel Test................B-16
Low Voltage Test..............................B-17
Location & Function
Wiring for remote On/Off switch, Master Control Panel
Low voltage (24 VAC) wiring provides power for a remote
On/Off switch and indicator light (optional). It is located
behind the rear cover on the base unit.
Rear of Base Unit Shown
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-15
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Master Control Panel
Testing
Step 1:
Master Control Panel Function.........B-15
Low Voltage Test..............................B-17
Turn power off at on/off switch and main power supply.
Remove electrical cover.
Turn power on at on/off switch and main power supply
Check to see if D4 LED light is on.
If light is on, master control panel is ok.
If light is off, continue with step 2.
Step 2: Disconnect power at on/off
switch and main power supply box.
Note: Refer to Section C Electrical Cover
Disconnect
Caution
When testing components with power on
use care to prevent electrical shock.
Bypass
Air
Va
c
Wa
ter
Step 3: Bypass the remote switch to verify it is not defective.
Disconnect the red and blue wires from the remote switch.
Connect the blue and red wires together.
Note
When working on Twin units,
unplug parallel harness.
Step 4: Connect power to the PowerVac G.
Restore power.
Note: If the hour meter and pump start running then replace the master control panel.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-16
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Low Voltage
C25
C26
U1
R44 C27
R20
L6
R21
U8
D11
R3
R18
R22
C4
U9
L12
R19
C21
U6
System Monitor
PWR / Door SW
L10
C16
R38
R37
R40
R5
C5
Remote SW
R24
J9
D7 D9 R13
U10
Top Float
R8
Bottom Float
D5 D6
6
D3
R1
D10 D8 R10
PWR/Door SW On
D4 R4
Note: Refer to Section C Electrical Cover
R23
D2
C20
C3
R7
K1
U7
Middle Float
J7
Hour Meter
U3
Drive J14
R2 C23
C24
U2
U4
U5
R25
ISO_PWR
J12
R43
C17
L7
Turn power off at on/off switch and main power supply box.
Remove electrical cover.
Turn power on. R41
R36
R35
R39
D1
Step 1:
C19
C15
C6
C18
Display / Keypad
L9 L8
When working on Twin units,
unplug parallel harness.
When testing components with power on
use care to prevent electrical shock.
K2
K3
YL YL
J17
Note
C22
Testing
Master Control Panel Function.........B-15
Master Control Panel Test................B-16
Section C Access Procedures............C-1
Caution
R9
J10
K5
K8
R6
C2
K8
K4
J6
Q1
C1
U11
MTR-TSTAT
Drive Enable
K7
J2
J1
24 VAC PWR
AC PWR On
ON
CTS
D16 D15 R32
1
2
Floats
3
J3
R16
J8
J15
Evac Pump
J4
J11
Pressure Sensor
PCB: 015-2699-00 Date: xx-xx-xx
BOM: 003-2109-00 Rev
Contactor
J13
ASSY: 015-2700-00 Assy Rev
D13
J16
J5
AA2332
Step 3: Check at “J2” , pin 6 and as
shown above on daughter card.
Step 2: Check input voltage as shown on daughter card.
U1
R44 C27
R21
U8
R41
R36
R35
R39
D1
U9
PWR / Door SW
R18
R22
C4
L12
L9 L8
R3
U5
R25
ISO_PWR
J12
R20
L6
D11
U2
U4
R19
C21
U6
System Monitor
D2
C20
C3
R38
R37
R40
Remote SW
R24
J9
D7 D9 R13
R5
C5
U10
Top Float
R8
D5 D6
K3
YL YL
J17
Bottom Float
D3
L10
D10 D8 R10
PWR/Door SW On
D4 R4
K2
R1
C16
R7
K1
R23
Middle Float
J7
Hour Meter
U3
U7
K8
U11
MTR-TSTAT
R9
J10
K5
Note: This tests for low voltage across “K1” relay .
If the voltage is too low, the relay may not energize.
Drive J14
R2 C23
C24
C6
C25
C26
L7
R43
C17
C19
C15
C22
C18
Display / Keypad
R6
C2
K8
K4
J6
Q1
C1
Drive Enable
Check
K7
J2
J1
24 VAC PWR
“Daughter Card”
(Step 2)
AC PWR On
ON
CTS
D16 D15 R32
1
2
Floats
3
J3
Meter Reading
24 VAC +4 / -2
Required Action
Actual transformer voltage.
Note: if out of range check contactor
and transformer.
R16
J8
J15
Evac Pump
J4
PCB: 015-2699-00 Date: xx-xx-xx
Contactor
J13
ASSY: 015-2700-00 Assy Rev
BOM: 003-2109-00 Rev
“J3” & “J2”
(Step 3)
J11
Pressure Sensor
D13
J16
J5
> 18.5 VAC
If less than 18.5 VAC, there may be too
much wire between unit and Master control Panel. If length can not be changed,
reduce gage of wire to 14 gage.
Daughter Card
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 11/2/15]
B-17
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VFD (Variable Frequency Drive)
Testing VFD......................................B-19
VFD Error Codes................................A-6
Location & Function
Using the pressure sensor readings, the VFD controls the motor
speed to maintain a pressure as determined by the programmed
pressure set points during both the operating and sleep modes.
Pressure is set to 12”Hg at the factory. The VFD is located in the
electrical box.
Note
Always go though Troubleshooting and VFD error code steps in Section A before testing the VFD.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-18
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VFD (Variable Frequency Drive)
Testing
Note
When working on Twin units,
unplug parallel harness.
Step 1: Turn power off at on/off switch and main power supply box.
Remove electrical box cover.
VFD Location....................................B-18
VFD Error Codes................................A-6
Section C Access Electrical Cover.....C-1
Caution
R20
L6
R25
R41
R36
R35
R39
D1
U9
PWR / Door SW
L12
L9 L8
R18
R22
C4
ISO_PWR
J12
R3
U5
R21
U8
D11
R19
C21
U6
System Monitor
U3
R38
R37
R40
R24
J9
D7 D9 R13
R5
C5
U10
Top Float
R8
D10 D8 R10
D5 D6
PWR/Door SW On
D4 R4
K2
R1
L10
Remote SW
R7
K1
R23
C16
Bottom Float
D3
U7
D2
C20
C3
Middle Float
J7
Hour Meter
C24
U2
U4
K3
K5
U11
MTR-TSTAT
R9
J10
K8
When
testing components
with power on use care
to prevent electrical
shock.
Drive J14
R2 C23
C6
C25
C26
U1
R44 C27
C22
C17
R43
Display / Keypad
L7
C19
C15
J17
C18
J6
R6
C2
K8
K4
J6
Q1
C1
Drive Enable
K7
J2
J1
24 VAC PWR
AC PWR On
D16 D15 R32
Floats
J3
R16
J8
J15
Evac Pump
J4
J11
Pressure Sensor
PCB: 015-2699-00 Date: xx-xx-xx
ASSY: 015-2700-00 Assy Rev
D13
BOM: 003-2109-00 Rev
Step 2:
Contactor
J13
J16
J5
Unplug drive harness from PC board “J6” connector.
Set meter to DC volts.
Turn power to unit on.
Check “Red Probe to Blue Wire” and “Black Probe to Black Wire”.
Note: Verify voltage is 24VDC +4 / -2. If reading is out of range, go to step three.
If reading is in range go to step four.
Step 3: Unplug drive harness from S1 & SC on VFD box.
Set multi-meter to Ώ.. Check continuity in wire harness.
Meter Reading
Required Action
less than 5 ohms
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Before performing step 4, verify the PC board checks have been completed first. Refer to Sec B, PC board.
Step 4:
Remove outside and live wire covers only on VFD box. Refer to Section C for access procedure.
Install jumper from S1 to SC. Turn power on, motor should start.
Note: If motor doesn’t start, replace VFD. If it does start you may have missed problem with the harness. You may have an intermittent connection.
Replace Drive Harness
OL
Equipment Alert
Drive Harness OK - go to Step 4
All
all
[Revised: 03/30/16]
B-19
Always verify model & serial number
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Line Filter
Line Filter Test..................................B-21
Location & Function
The line filter is used to reduce the unintentional emission from
the PowerVac G to low levels. It is located in the electrical box.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-20
Always verify model & serial number
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Line Filter
Line Filter Location...........................B-20
Section C............................................C-1
Test
Step 1: Turn power off at on/off switch and main power supply box.
Remove electrical cover.
Note
When working on Twin units,
unplug parallel harness.
Note: Refer to: Section C for Electrical Cover Removal
Step 2:
Test continuity. Set meter to Ώ.
Test L connection from the Line side to the Load side and then both L terminals to ground. Repeat for N connection.
Meter Reading
Step 3: Install electrical cover.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
“L” to “L” < 5 Ώ
“N to “N” < 5 Ώ
Filter OK
Line “L” to Ground = OL
Filter OK
Load “L” to Ground = OL
Filter OK
Line “N” to Ground = OL
Filter OK
Load “N” to Ground = OL
Filter OK
Any other readings shown will require Line
Filter Replacement
all
[Revised: 2/17/11]
Required Action
Filter OK
B-21
Always verify model & serial number
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Fuse and Transformer
Fuse Testing.....................................B-23
Transformer Testing..........................B-24
Location & Function
Fuse
The fuse limits electrical current flowing from the contactor to
the transformer. It interrupts electrical current in case of an
overload condition on the transformer. Only replace with a
1/8 amp, 250 volt, Type T Slo Blo fuse.
The transformer converts the main supply input of 230 Volts
AC to 24 Volts AC for the low voltage circuitry. It also comes
equipped with an internal non-resettable thermal fuse that
opens when the transformer becomes to hot.
Transformer
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-22
Always verify model & serial number
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Fuse
Test
Step 1: Turn power off at on/off switch and main power supply box..
Remove electrical cover.
Fuse and Transformer Location........B-22
Transformer Testing..........................B-24
Section C............................................C-1
Note
When working on Twin units,
unplug parallel harness.
Refer to: Section C Electrical Cover
Step 2: Remove terminal leads.
Test continuity. Set meter to Ώ.
Place meter probes on both fuse terminals.
Step 3: Visually check fuse to see if it is burnt or broken.
AA164301i
Meter Reading
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
Required Action
OL
Visually Burnt or Broken
Replace Fuse
0 (close to zero) Reading
Visually looks ok
Fuse - OK
Step 4: Install electrical cover.
all
[Revised: 2/17/11]
B-23
Always verify model & serial number
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Transformer
Note
Fuse and Transformer Location........B-22
Fuse Testing.....................................B-23
Section C............................................C-1
When working on Twin units,
unplug parallel harness.
Test
Step 1:
Turn power off at on/off switch and main power supply box.
Remove electrical cover.
Turn on power supply at disconnect box.
Leave on/off switch OFF.
Step 2: Verify all wire connections are secure to transformer.
Feel transformer to verify it is not hot. If it is, allow it to cool off.
Note: Transformer has an internal non-resetting overload fuse. If transformer is hot to touch,
allow to cool before testing. If it’s hot, check ambient operating temp and input / output
voltage. Verify ambient room temperature doesn’t exceed 104o Fahrenheit (37 Celsius).
Note: Refer to: Section C Electrical Cover
R20
L6
R21
U8
D11
R41
R36
R35
R39
D1
PWR / Door SW
R18
R22
U9
L12
L9 L8
R3
U5
R25
C4
R19
C21
U6
System Monitor
U3
R24
R1
L10
C16
R38
R37
R40
R5
C5
Remote SW
J9
U10
Top Float
R8
D10 D8 R10
Middle Float
J7
PWR/Door SW On
D4 R4
K3
YL YL
J17
R7
D5 D6
K2
R23
D7 D9 R13
Bottom Float
K1
U7
D2
C20
C3
Hour Meter
D3
Drive J14
R2 C23
C24
U2
U4
C6
C25
C26
U1
R44 C27
ISO_PWR
J12
C19
C15
R43
C17
L7
C22
C18
Display / Keypad
U11
MTR-TSTAT
R6
J10
K5
K8
K4
J6
Q1
C1
R9
C2
K8
Drive Enable
K7
J2
J1
24 VAC PWR
AC PWR On
ON
CTS
D16 D15 R32
1
2
Floats
3
J3
R16
J8
J4
J15
J11
Pressure Sensor
PCB: 015-2699-00 Date: xx-xx-xx
BOM: 003-2109-00 Rev
Contactor
J13
ASSY: 015-2700-00 Assy Rev
D13
J16
J5
AA2315
Step 3:
Turn power on.
Unplug transformer wire harness from PC board.
Set meter to ~
V.
Place meter probes in wire harness connector.
Note: Verify reading is 24 volts ( -2 / +4). If out of range, check incoming supply power to unit, 230 VAC +/- 10%. If incoming voltage is ok,
replace transformer. If incoming voltage is not, main power supply needs
checked by an electrician.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Meter Reading
All
Required Action
Exceeds 24 Volts - 2 / + 4
Replace Transformer
Within 24 Volts - 2 / + 4
Transformer - OK
Step 4: Install electrical cover.
all
[Revised: 11/2/15]
Caution
When testing components with power on
use care to prevent electrical shock.
B-24
Always verify model & serial number
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PC Board and Daughter Card
PC Board Check...............................B-26
Daughter Card Check.......................B-27
Location & Function
The PC Board is located in the electrical box and performs a number of various functions. These include: isolating circuits, main control for the unit, and provides a
24 Volt DC power supply to power the pressure sensor. There are no fuses or other serviceable parts on the PC Board, however there are six LED indicator lights
for trouble-shooting. The lights and connectors are all labeled on the board.
D5 – AC PWR ON - Indicates that the unit is getting power.
D4 – PWR / DOOR ON - Indicates the door limit switch, the power switch, and the Master Control switch is closed. (Does this when the front cover is on.)
D1 – ISO PWR - Indicates that 5 Volts DC provided by the drive is present at the keypad.
D5 – BOTTOM FLOAT - Indicates the bottom float switch is closed.
D10 – MIDDLE FLOAT - Indicates the middle float switch is closed.
U1
R44 C27
R21
U8
R41
R36
R35
R39
D1
U9
PWR / Door SW
Hour Meter
R18
R22
C4
L12
L9 L8
R3
U5
R25
ISO_PWR
J12
R20
L6
R19
C21
U6
System Monitor
U3
C20
C3
R24
R1
L10
C16
R38
R37
R40
R5
C5
Remote SW
J9
D7 D9 R13
YL
U10
Top Float
D10 D8 R10
D5 D6
K3
YL YL
J17
Bottom Float
K2
R23
Middle Float
J7
PWR/Door SW On
D4 R4
K1
U7
D2
R7
D3
Drive J14
R2 C23
C24
U2
U4
C6
L7
D11
C19
C15
R43
C17
C22
C18
Display / Keypad
C25
C26
D7 – TOP FLOAT - Indicates the top float switch is closed.
U11
MTR-TSTAT
C1
Q1
R8
J6
PC Board
R9
J10
R6
C2
Drive Enable
K5
K8
K4
K8
K7
J2
24 VAC PWR
J1
AC PWR On
ON
CTS
D16 D15 R32
1
2
Floats
3
J3
R16
J8
J4
J15
J11
Contactor
Pressure Sensor
J13
D13
J16
J5
Daughter Card
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 11/2/15]
B-25
Always verify model & serial number
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PC Board
Check
Step 1:
PC Board Location...........................B-25
Section C............................................C-1
Turn power off at on/off switch and main power supply box.
The separator tank should have drained when unit was turned off.
Verify it is not full.
Remove electrical cover.
Caution
When testing components with power on
use care to prevent electrical shock.
Refer to: Section B Section C Electrical Cover
C25
C26
U1
R44 C27
L6
R21
U8
D11
R41
R36
R35
R39
D1
U9
PWR / Door SW
Hour Meter
L12
L9 L8
R3
U5
R18
R22
ISO_PWR
R19
C21
U6
System Monitor
C24
U2
U4
R25
C4
J12
R20
U3
R24
R1
L10
R38
R37
R40
R5
C5
Remote SW
J9
D7 D9 R13
R8
Middle Float
K3
U11
MTR-TSTAT
R9
J17
D5 D6
PWR/Door SW On
D4 R4
J10
K5
K8
When working on Twin units,
unplug parallel harness.
J6
Q1
C1
R6
C2
K8
K4
Note
U10
Top Float
D10 D8 R10
J7
K2
R23
C16
R7
K1
U7
D2
C20
C3
Bottom Float
D3
Drive J14
R2 C23
C6
C17
R43
Display / Keypad
L7
C19
C15
C22
C18
Drive Enable
K7
J2
J1
24 VAC PWR
AC PWR On
ON
CTS
D16 D15 R32
1
2
Floats
3
J3
R16
J8
J4
J15
J11
Pressure Sensor
PCB: 015-2699-00 Date: xx-xx-xx
J13
ASSY: 015-2700-00 Assy Rev
BOM: 003-2109-00 Rev
Contactor
D13
J16
Step 2:
Make sure the front cover is installed and the safety switch is engaged.
Turn main power supply and on/off switch on.
With the vacuum running unplug wire harness from J6 on PC board.
Set meter to Ώ. Test resistance at J6 as shown.
NOTE:
Ensure the cable going to J14 is connected securely to avoid a false reading.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Meter Reading
All
all
[Revised: 11/2/16]
J5
B-26
Required Action
< 5 ohms
PC Board - OK
Check Contactor
> 5 ohms
Replace PC Board
Always verify model & serial number
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Daughter Card
Note
Check
When working on Twin units,
unplug parallel harness.
Step 1: Set meter to VDC.
Place probes at J2 Daughter Card connection as shown.
C25
C26
U1
R44 C27
L6
R21
U8
D11
U5
R41
R36
R35
R39
D1
U9
PWR / Door SW
Hour Meter
R18
R22
ISO_PWR
L12
L9 L8
R3
R25
C4
R19
C21
U6
System Monitor
U3
R38
R37
R40
J9
D7 D9 R13
R5
C5
U10
Top Float
R8
D10 D8 R10
Middle Float
J7
R7
PWR/Door SW On
D4 R4
K2
R1
L10
Remote SW
R24
D5 D6
K1
R23
C16
Bottom Float
D3
U7
D2
C20
C3
K3
YL YL
J17
J12
R20
C24
U2
U4
Drive J14
R2 C23
C6
C17
R43
Display / Keypad
L7
C19
C15
C22
C18
MTR-TSTAT
K8
K4
R6
C2
K8
J6
Q1
C1
R9
J10
K5
U11
Drive Enable
K7
J2
J1
24 VAC PWR
AC PWR On
ON
D16 D15 R32
1
CTS
2
Floats
3
J3
R16
J8
J4
J15
J11
Pressure Sensor
PCB: 015-2699-00 Date: xx-xx-xx
J13
ASSY: 015-2700-00 Assy Rev
BOM: 003-2109-00 Rev
Contactor
D13
J16
J5
AA2338
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Meter Reading
All
all
[Revised: 11/2/15]
B-27
Required Action
< 24 VDC
Replace Daughter Card
24 VDC -2 / +4
Daughter Card OK
Always verify model & serial number
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Contactor
Contactor Testing.............................B-29
Location & Function
When the contactor is energized, it closes and connects the Main input
power supply to the line filter. Main input power supply is then applied to
the Variable Frequency Drive (VFD) through R/L1 and S/R2 (single phase).
Contactor
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-28
Always verify model & serial number
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Contactor
Testing
Note
Step 1:
Turn power off at on/off switch and main power supply box..
Remove electrical cover.
When working on Twin units,
unplug parallel harness.
Step 2: Turn power on. Set meter to
~V. Check voltage on PC board at J5 connection. Also verify black plastic “shunt” is on J16.
Refer to: Section C Electrical Cover
Step 3:
Contactor Location...........................B-28
Check high voltage on contactor.
Set meter to ~
V.
Place meter probes on front, left side white and black wires.
Note: Refer to PC board diagram in Section D.
Verify reading is 24 VAC.
Refer to: Verify reading is 207-253 volts.
Step 5: Insert screwdriver to start manually.
Caution
Note: If system starts, replace contactor.
When testing components with power on
use care to prevent electrical shock.
Step 4:
Check voltage across contactor.
Set meter to ~
V.
Place meter probes on top brown wire and bottom yellow wire.
Step 6: Install electrical cover.
AA2360i
Note: Verify reading is 24 volts.
Meter Reading
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-29
Required Action
24 Volts
(PC Board Check
Contactor OK
207-253 Volts
(Left Side Check)
Contactor OK
24 Volts
(Top & Bottom Check)
Contactor OK
Always verify model & serial number
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Pressure Sensor
Pressure Sensor Testing..................B-31
Location & Function
The Pressure Sensor measures the vacuum pressure inside the separator
tank. The variable frequency drive uses the pressure readings to control
the speed at which the motor rotates the pump to inherently control the
pressure.
Pressure Sensor
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-30
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Pressure Sensor
Testing
Step 1:
Pressure Sensor Location................B-30
Turn power off at on/off switch and main power supply box.
Remove rear cover.
Unplug pressure sensor harness from base unit.
Set multi-meter to Ώ.
Place probes, red probe in bottom hole, black probe in top
hole. Check resistance in end of harness unplugged.
Refer to: Section C for Access procedures. Note: Need to follow polarity as shown! If not,
measurement will be incorrect.
Step 2: Remove pressure sensor cover.
Disconnect wire harness from pressure sensor.
Check continuity on wire harness.
Top Half of Cover
Note
When working on Twin units,
unplug parallel harness.
Check harness
for Continuity
Top
Check for
Resistance
Bottom
Bottom Half
of Cover
Top
(Black)
Flats
on Left
when
Checking
Bottom
(Red)
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 11/6/16]
B-31
Step
Meter Reading
Step 1
Sensor
Test
3 meg ohms
increasing to
22 meg ohms
Pressure Sensor OK
(Replace if readings
are out of range.)
Required Action
Step 2
Cable
Test
< 1 ohm
Step 2
Wire Harness OK
(Replace if readings
are out of range.)
Always verify model & serial number
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Fans
Fan Testing.......................................B-33
Location & Function
230 VAC is supplied to the fans and are controlled by a
thermostat. The fans are energized when the
thermostat closes at temperatures exceeding 95°F
(35°C). When the temperature of the thermostat drops
below 77°F (25°C), the thermostat will open, shutting
off the fans.
Fans
Thermostat
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-32
Always verify model & serial number
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Fan
Contactor..........................................B-28
Fan Location.....................................B-32
Section C - Access Procedures..........C-1
Section D - Wire Diagrams.................D-1
Testing
Note
When working on Twin units,
unplug parallel harness.
Connector at Base Unit
To check fan...
A) Turn power off at on/off switch and main power supply box.
B) Remove rear panel.
C) Set meter to Ώ.
D) Unplug outside fan harness from base unit and fans.
E) Check continuity in fan harness (outside).
F) Unplug inside fan harness from plug on side of electrical box, contactor and thermostat.
F) Check continuity in fan harness (inside).
Refer to: Section C for Access Procedures & Section D for Wire Diagrams
Check
Meter Reading
Required Action
Continuity on Fan
Harness (outside
electrical box)
< 1 ohm
Fan Harness - OK
Check Contactor (Base Unit)
OL
Replace Fan Harness
Continuity on Fan
Harness
(inside electrical box)
< 1 ohm
Fan Harness - OK
Check Contactor
OL
Replace Fan Harness
Fan Harness
(inside)
Fan Harness
(outside)
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-33
Always verify model & serial number
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Gauge
Location & Function
The vacuum gauge has a 1/4” NPT fitting and a range
from 0 to -30 IN./Hg. graduated in increment of 0.5 In/
Hg. Recommended range for the system is 10”Hg to
18”Hg. The system is preset at the factory for 12”Hg.
Gauge
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: mo/dd/yr]
B-34
Always verify model & serial number
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Separator Tank
Rinsing Separator Tank Assembly
Note
When working on Twin units,
unplug parallel harness.
To rinse separator tank..
A)
B)
C)
D)
E)
Turn On / Off switch to “Off” position.
Remove pressure gauge from separator lid and temporarily replace with garden hose adapter.
Attach garden hose (not shown) to garden hose adapter.
Run water through garden hose for approximately five (5) minutes.
Turn water off, disconnect hose, remove garden hose adapter and replace with pressure gauge.
Note: Garden hose adapter was supplied as a loose part when this unit was purchased.
Garden Hose Adapter
20
15
10
25
5
0
-30
Gauge
Separator Lid
On / Off Switch
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-35
Always verify model & serial number
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For All Models
Vacuum Adjustment
Note
When working on Twin units, unplug parallel harness.
Adjust Vacuum Level (Only if needed)...
Note: Adjustment can only be made if unit is running and NOT in sleep mode. If unit is in sleep mode, turn
unit off and back on before making adjustment. unit will enter back into sleep mode in 60 seconds.
Adjust vacuum level (“Hg) by ......
A) Press the “ESC” button until “V xx” shows on the screen.
B) Press “Enter” to enter the vacuum setting.
C) Press the right arrow to highlight the number you would like to change (flashing number is selected).
D) Use up and down arrows to change the flashing number.
E) Press Enter to confirm the vacuum setting.
F) To get back to displaying the pressure value, press the “ESC” button until the “V xx” shows on the screen.
G) Press the up or down arrows until you see “Mon” on the display. Press enter.
H) Press up or down to select U8-02, press enter. Pressure value should appear on the display.
“Vxx” xx is a Variable Reading
“Mon” Reading
“u8-02” Reading
AA2327
AA2326
AA2328
Note
Vacuum level range is 6” Hg - 18” Hg. Midmark recommends operation at factory preset of 12” Hg. If reading is low check for leaks or open operatory lines prior to adjustment.
Vacuum Adjustment
© Midmark Corporation 2010 SF-1943
[Revised: 2/17/11]
B-36
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VRV
Note
Check and Adjust
The VRV is located on the intake side of the pump. The VRV is installed as a precaution to keep the tank from
over pressurizing past 18”Hg. Adjustment should only be checked/made if the PowerVac G is not going into
sleep mode. This could mean the VRV is not working properly.
To check and adjust VRV...
A) Turn power off at on/off switch and disconnect box.
B) Access VRV by removing back cover. Refer to: Section C Access Procedures.
C) Unscrew VRV from Tee fitting.
D) Adjust the center mounted screw inside the valve.
E) Install VRV and back cover.
Note: Use 1/4 inch nut driver and phillips screwdriver. Each full clockwise turn increases the vacuum level by approximately 2 “Hg.
VRV is factory set at 18”Hg. If unable to reach 18”Hg pressure setting, replace VRV.
Note
When working on Twin units,
unplug parallel harness.
VRV
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
B-37
Always verify model & serial number
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Section C
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© Midmark Corporation 2010 SF-1943
Access
Procedures
[Revised: mo/dd/yr]
Front Cover........................................C-2
Top Plate............................................C-3
Electrical Cover..................................C-4
Back Cover.........................................C-5
VFD Covers........................................C-6
C-1
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Front Cover
Removal / Installation
Note
When working on Twin units,
unplug parallel harness.
Caution
Power must be turned off when removing front
cover. The On/Off switch controls only the secondary circuit power. The main power source must be turned off to
remove all power in the control box.
Plastic Cones
Front Cover
Remove front cover...
A) Disconnect power.
B) Unfasten front cover by turning two fasteners 1/4 turn, counter clockwise.
C) Lift front cover straight up to remove from side panels.
Install front cover...
D) Align plastic cones on new front cover to holes in side panels.
E) Turn fasteners 1/4 turn clockwise to secure front cover.
F) Install front cover.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Fasteners
On/Off Switch
All
all
[Revised: 2/17/11]
C-2
Always verify model & serial number
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Top Plate
Caution
The On/Off switch controls only the secondary circuit
power. The main power source must be turned off to
remove all power in the control box.
Removal / Installation
Note
When working on Twin units,
unplug parallel harness.
Pressure Sensor
Parallel
Float Cord
Remove top plate...
A) Disconnect power.
B) Remove back cover. (Refer to: Section C - Back Cover)
B) Unplug float, pressure sensor and parallel cord from base unit.
C) Remove separator from vacuum base unit if applicable.
D) Remove top plate.
E) Reverse steps to install.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
C-3
Always verify model & serial number
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Electrical Cover
Removal / Installation
Caution
The On/Off switch controls only the secondary circuit power. The main power
source must be turned off to remove all power in the control box. When testing components with power on use care to prevent electrical shock.
Note
When working on Twin units,
unplug parallel harness.
Remove/install electrical cover.
A) Disconnect power.
B) Remove four screws from electrical cover.
C) Remove electrical cover.
D) Install electrical cover.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
C-4
Always verify model & serial number
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Back Cover
Removal / Installation
Ground Screw With Washer
Note
When working on Twin units,
unplug parallel harness.
Plastic Cones
Caution
Power must be disconnected when removing back
cover. The On/Off switch controls only the secondary circuit power. The main power source must be turned off to
remove all power in the control box.
Fasteners
Remove back cover...
A)
B)
C)
D)
E)
Disconnect power.
Remove ground screw.
Unfasten back cover by turning two fasteners 1/4 turn, counter clockwise.
Lift back cover straight up to loosen from side panels.
Unplug both fans.
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Install back cover...
E)
F)
G)
H)
Align plastic cones on new back cover to holes in side panels.
Turn fasteners 1/4 turn clockwise to secure back cover.
Plug in fans and install back cover.
Install ground screw.
All
all
[Revised: 2/17/11]
C-5
Always verify model & serial number
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VFD Covers
Note
Removal / Installation
When working on Twin units,
unplug parallel harness.
Outside Cover
VFD Access...
A)
B)
C)
D)
E)
Disconnect power.
Loosen screw and remove outside cover.
Pull off live wire cover.
Pull off wire separator cover.
To install covers just push back onto VFD box and tighten screw.
Live Wire Cover
Separator Cover
AA2334i
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 2/17/11]
C-6
Always verify model & serial number
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Section D
Wiring Diagrams
© Midmark Corporation 2010 SF-1943
[Revised: mo/dd/yr]
D-1
PowerVac G.......................................D-2
Variable Frequency Drive...................D-5
Motor Connections.............................D-6
PCB....................................................D-7
BL
RD
BL
BL
BK
BK
RD
BK
WH
BL
YL
Display / Keypad
J12
PWR / Door SW
Hour Meter
J8
J2
24 VAC PWR
J3
D11
L7
U8
C17
L6
C4
ISO_PWR
U9
U1
R44 C27
L12
C18
R21
U4
U6
J7
OR
R43
K2
U5
C15
R20
R25
C21
System Monitor
K1
WH
PWR/Door SW On
D4 R4
D3
AC PWR On
D16 D15 R32
R22
C25
C26
R41
R36
R35
R39
D1
R3
C19
R19
U3
U2
C16
D7 D9 R13
C20
C3
Middle Float
D5 D6
Bottom Float
K5
R7
D10 D8 R10
Top Float
R24
C22
R18
K3
D13
K8
U7
R2 C23
R23
D2
K4
WH
BK
GY
L10
R1
J9
Remote SW
R9
MTR-TSTAT
J10
K8
Evac Pump
J13
GY
Pressure Sensor
J15
C24
L9 L8
J17
GN/YL
GN/YL
R38
R37
R40
C2
K7
J4
R5
C5
U10
U11
C1
Q1
J6
Drive J14
YL
R8
R6
J1
R16
Contactor
J11
Floats
Drive Enable
J16
J5
C6
YL
BK
BR
BK
BK
RD
YL
BL
GY
YL
BK
WH
BL
RD
BK
WH
BL
GN
RD
RD
BK
BK
BK
BK
Always verify model & serial number
D-2
[Revised: 3/1/16]
© Midmark Corporation 2010 SF-1943
Electrical Diagram
V998996 to V1093822
Serial Numbers:
All
Models:
Next
Go to Table of Contents
Back
BL
RD
BL
BL
BK
BK
RD
BK
WH
BL
YL
Display / Keypad
J12
PWR / Door SW
Hour Meter
J8
J2
24 VAC PWR
J3
D11
U8
L12
U1
C17
L7
R44 C27
L6
C4
ISO_PWR
U9
C18
R21
U4
U6
J7
OR
R43
K2
U5
C15
R20
R25
C21
System Monitor
K1
WH
PWR/Door SW On
D4 R4
D3
AC PWR On
D16 D15 R32
R22
C25
C26
R41
R36
R35
R39
D1
C19
R3
R18
U3
U2
C16
D7 D9 R13
C20
C3
Middle Float
D5 D6
Bottom Float
K5
R7
D10 D8 R10
Top Float
R24
C22
R19
K3
D13
K8
U7
R2 C23
R23
D2
K4
WH
BK
GY
L10
R1
J9
Remote SW
J9
Remote SW
MTR-TSTAT
R9
MTR-TSTAT
J10
J10
K8
Evac Pump
J13
GY
Pressure Sensor
J15
C24
L9 L8
J17
GN/YL
GN/YL
R38
R37
R40
C2
K7
J4
R5
C5
U10
U11
C1
Q1
J5
J6
Drive J14
YL
R8
R6
J1
R16
Contactor
J11
Floats
Drive Enable
J16
C6
YL
BK
BR
BK
BK
RD
YL
BL
GY
YL
BK
WH
BL
RD
BK
WH
BL
GN
RD
RD
BK
BK
BK
BK
Always verify model & serial number
D-3
[Revised: 3/1/16]
© Midmark Corporation 2010 SF-1943
Electrical Diagram
V1093823 to V1648734
Serial Numbers:
All
Models:
Next
Go to Table of Contents
Back
BL
RD
BL
BL
BK
BK
RD
BK
WH
BL
YL
Display / Keypad
J12
PWR / Door SW
Hour Meter
J8
J2
24 VAC PWR
J3
D11
L7
U1
C17
R44 C27
U8
L12
K1
C18
R21
U4
U6
J7
OR
R43
K2
U5
C15
R20
R25
C21
System Monitor
U9
L6
C4
ISO_PWR
PWR/Door SW On
D4 R4
D3
AC PWR On
D16 D15 R32
WH
C19
R3
R18
U3
U2
C20
C3
C16
D7 D9 R13
Middle Float
D5 D6
Bottom Float
K5
R7
1
ON
D10 D8 R10
Top Float
R24
C22
R19
K3
D13
3
CTS
C24
K8
2
J15
U7
R2 C23
R23
D2
K4
R1
J9
Remote SW
L10
Remote SW
J9
MTR-TSTAT
R9
MTR-TSTAT
J10
J10
K8
Evac Pump
J13
GY
Pressure Sensor
GY
BK
WH
R38
R37
R40
C2
K7
J4
R5
C5
U11
U10
C1
Q1
J6
Drive J14
YL
R8
R6
J1
R16
Contactor
J11
Floats
Drive Enable
J16
J5
C6
YL
BK
BR
BK
BK
RD
YL
BL
GY
YL
BK
WH
BL
RD
BK
WH
BL
GN
RD
RD
BK
BK
BK
BK
Always verify model & serial number
D-4
[Revised: 3/1/16]
© Midmark Corporation 2010 SF-1943
R22
C25
C26
R41
R36
R35
R39
D1
L9 L8
J17
GN/YL
GN/YL
V1648735W to Present
Serial Numbers:
All
Models:
Next
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Back
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Variable Frequency Drive (VFD) - 015-2680-00
R/L1
S/L2
+1
T/L3
+2
From GND to PC
From Drive Enable (PCB) to SC
From Drive Enable (PCB) to S1
From Pressure Sensor (PCB) to A2 & AC
From Line Filter to R/L1
From Line Filter to S/L2
Serial Numbers:
© Midmark Corporation 2010 SF-1943
To Drive
(PCB)
W/T3
Models:
V/T2
From Parallel Cable To:
Blue - A1
Brown - AM
White - AC
Orange - P1
Green - S6
Yellow - S7
U/T1
From Motor to W/T1
R+ R- S+ S- -G
From Motor to V/T1
P1 P2 PC A1 A2 +V AC AM AC MP
B2
S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP
B1
From Motor to U/T1
Jumper
P2 to S2
All
all
[Revised: mo/dd/yr]
D-5
Always verify model & serial number
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Motor Connections
Example
Motor Harness
To Controller
Motor Wires
U
(Black)
T1 / T7
(Yellow)
V
(Red)
T2 / T8
(Yellow)
W
(Blue)
T3 / T9
(Yellow)
---
T4 / T5 / R6
(Yellow)
1 Yellow
1 Red
1 Yellow
1 Red
U
T1
T7
015-2742-00
Motor Harness
TO PCB, J10
Motor Thermostat
Connection
TO PCB, J10
015-2742-00
Motor Harness
AA2333
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 3/11/2011]
D-6
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R21
U8
D11
U5
U9
L12
R41
R36
R35
R39
D1
R19
C21
U6
System Monitor
PWR / Door SW
Hour Meter
L9 L8
R18
R22
C4
U3
C20
C3
R24
J7
J9
U10
R8
U11
D5 D6
K2
R5
C5
Remote SW
D7 D9 R13
Top Float
Middle Float
PWR/Door SW On
D4 R4
K1
R38
R37
R40
D10 D8 R10
RD
D3
GY
R1
L10
WH RD BL
R7
On / Off SW BK
R23
C16
Bottom Float
Hour Meter BL
U7
D2
J17
Door SW
R3
R25
ISO_PWR
J12
R20
L6
C24
U2
U4
K3
YL YL
R9
J10
K5
K8
K8
K4
J6
Q1
C1
BL
Drive Enable
K7
J1
AC PWR On
YL
D16 D15 R32
ON
1
BK
24 VAC PWR
BL
CTS
2
Floats
3
J3
R16
J8
WH
J4
J15
GN
RD
BK
J11
Pressure Sensor
Contactor
YL
J13
D13
J16
Plugs into
Board
D1
J2
U1
C1
J1
Serial Numbers:
V1093823 to Present
[Revised: 3/5/15]
PC Board
Description
Part
Number
(sensors & switches not included unless noted)
A
Float Harness (Inside)
(Float Cord is part of the Float Assembly)
015-2736-00
B
Drive Harness
015-2740-00
C
Contactor Harness
015-2725-00
D
Paralleling Harness (Inside Box)
Paralleling Harness (Between - Master End
has 4 pins and Slave End has 6 pins)
015-2749-00
002-1443-00
E
Pressure Sensor Wire Harness
015-2724-00
F
24 VAC Harness
002-1442-00
G
Switch and Hour Meter Harness
015-2741-00
H
Keypad CAT5 Cable
015-2756-00
I
Remote Harness
015-2743-00
J
Motor Thermostat Harness
015-2742-00
K
PC Board
015-2700-00
L
Power Supply Assembly
015-2815-00
M
PVAC Timer
015-3439-00
N thru P Not Shown or Connected to PCB
All
© Midmark Corporation 2010 SF-1943
BR
J5
Item
GY
Models:
BK
R6
C2
J2
24 VAC PWR
C6
C25
C26
U1
R44 C27
Drive J14
R2 C23
BK
L7
BL
R43
Display / Keypad
C17
C19
C15
C22
C18
D-7
N
Fan Harness (Inside)
002-1492-00
O
Cord, Daisy Chain, Fan (Outside)
015-2747-00
P
6 ft Electrical Conduit (Base Unit to
Disconnect Switch Box
015-1896-00
Always verify model & serial number
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Section E
Go to Table of Contents
© Midmark Corporation 2010 SF-1943
Exploded Views &
Parts Lists
[Revised: mo/dd/yr]
XXX-XXXX-XX
XXX-XXXX-XX
XXX-XXXX-XX
E-1
G3, G5, G7 (Single Units)..................E-2
G6, G10, G14 (Twin Units).................E-3
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PowerVac® G
G3
G5
G7
Separator Assembly...........................E-4
Loose Parts........................................E-6
Vacuum Base Unit..............................E-9
Loose Parts...................................... E-11
Shipping Bolt Assembly....................E-16
Fan Assembly...................................E-15
Drain Assembly..................................E-8
Electrical Box....................................E-12
Electrical Box Covers.......................E-13
Front Panel Controls........................E-14
© Midmark Corporation 2010 SF-1943
[Revised: mo/dd/yr]
E-2
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PowerVac® G
G6
G10
G14
Twin Tee Assembly.............................E-7
Separator Assembly...........................E-4
Loose Parts........................................E-6
Vacuum Base Unit..............................E-9
Loose Parts...................................... E-11
Shipping Bolt Assembly....................E-16
Fan Assembly...................................E-15
Drain Assembly..................................E-8
Front Panel Controls........................E-14
Electrical Box....................................E-12
Electrical Box Covers.......................E-13
© Midmark Corporation 2010 SF-1943
[Revised: mo/dd/yr]
E-3
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1029-5111-00
Note
Earlier production units had three reed switch floats.
The middle float was not used and is not installed in
current production units.
2053-2159-00
7
3
030-1905-00-312
4
030-1918-00-312
5040-0250-188
6
Separator
Note
Single models require one separator assembly.
Twin models require two separator assemblies.
Models:
Serial Numbers:
All
V998996 thru V1466496
© Midmark Corporation 2010 SF-1943
[Revised: 10/1/13]
E-4
Item
Description
Qty.
1
Separator Assembly (includes items 2 - 7)
1
2
• Gasket
1
3
• Tank
1
4
• Legs
3
5
• Screw (1/4” 20 x 1/2” ‘TT’)
6
6
• Refer to: Drain Assembly
Ref
7
• Separator Lid Assembly
Refer to: Separator Lid Assembly
1
Ref
Always verify model & serial number
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1029-5111-00
Note
Earlier production units had three reed switch floats.
The middle float was not used and is not installed in
current production units.
2053-2159-00
7
3
030-1905-00-312
4
030-1918-00-312
5040-0250-188
6
Separator
Note
Beginning Serial Number Label on
Separator Tanks
Models:
Serial Numbers:
Single models require one separator assembly.
Twin models require two separator assemblies.
All
V1466497 thru Present
© Midmark Corporation 2010 SF-1943
[Revised: 10/1/13]
E-4.1
Item
Description
Qty.
1
Separator Assembly (includes items 2 - 7)
1
2
• Gasket
1
3
• Tank
1
4
• Legs
3
5
• Screw (1/4” 20 x 1/2” ‘TT’)
6
6
• Refer to: Drain Assembly
Ref
7
• Separator Lid Assembly
Refer to: Separator Lid Assembly
1
Ref
Always verify model & serial number
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12
014-0515-00
014-0512-00
014-0516-00
11014-0550-00
12
9014-0699-00
13
14
014-0514-00
13
1
15
13
17014-0705-00
10014-0704-00
2
7
5
014-0501-00
6
8002-1436-00
16
9
4
7053-2187-00-312
6040-0006-93
5029-5196-00
16
Separator Lid Assembly
1
Item
3050-7984-00
Note
Single models require one separator assembly.
Twin models require two separator assemblies.
2029-3862-00
Note
002-1448-00
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
1
Earlier production units
had three reed switch
floats. The middle float
was not used and is
not installed in current
production units.
Description
Qty.
1
• Float Assembly
1
2
• Bulkhead Assembly w/45
1
3
• Bracket
1
4
• Separator Lid (not for service)
1
5
• Wash Down Fitting Assembly
1
6
• Screw (0.138-32 x 0.625 TT)
4
7
• Pressure Transducer Cover
2
8
• Pressure Sensor w/ Harness
Harness only (015-2787-00)
1
2
9
• Reducer (1/2” x 1/4” NPT)
10
• Tee (1/2” NPT)
1
11
• Gauge Vac (2” x 1/4” NPT)
1
2
12
• Elbow 90, (1-1/2” NPT)
13
• Nipple (1 1/2”)
3
14
• Bushing (1-1/2” x 1”)
1
All
15
• Nipple (1”)
1
16
• Bulkhead Fitting (1 1/2”)
1
all
17
• Nipple (1/2”)
1
[Revised: 10/6/16
E-5
Always verify model & serial number
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2
014-0535-00
5
014-0569-00
20173805
3
014-0512-00
6
PVC51035
77009131
4
77004080
014-0570-00
7
62962402
Note
8
Top section includes extra fittings
for exhaust and intake connections
to existing pipes from separator.
9
10
1002-1441-00
14
014-0530-00
029-3773-01
11
12
002-1854-00
13
Separator Loose Parts
Item
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
all
[Revised: 8/13/14]
E-6
Description
Qty.
1
Separator Loose Parts Assembly
(includes items 2 - 14)
Refer to: Separator
1
Ref
2
• Nipple (1 1/4”)
1
3
• Bushing (1 1/2” NPM x 1 1/4” NPT)
1
4
• Clamp, Worm Gear (2”)
1
5
• Bushing (2” NPT x 1.5” FPT)
1
6
• Nipple (1 1/2” NPT, Plastic)
1
7
• Reducer (2” x 1”)
1
8
• Adapter (1 1/2” NPT x Socket)
1
9
• Coupler (1 1/2” SOC 2” x 1”)
1
10
• Adapter (1 1/2” NPT x Socket)
1
11
• Garden Hose Adapter
1
12
• Drain Hose Assembly (1 1/2” I.D.)
1
13
• Intake Hose Assembly (1 1/2” I.D.)
14
• Refer to: Separator
Always verify model & serial number
1
Ref
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1002-1371-00
014-0561-00
22
014-0727-00
477004008
2
577002010
22014-0565-00
23
014-0534-00
3
6014-0518-00
014-0564-00
10045-0026-00
21
11BSW20472
014-0516-00
9BMS20900
20
8
014-0558-00
7014-0540-00
050-6782-00-312
19
14
Tee Assembly
Item
1
2
• Adapter (2” MPT x SOC)
1
3
• Bushing (1 1/2” x 2”)
1
4
• Bushing (2” x 1 1/2”)
1
5
• Nipple (1 1/2” NPT)
1
6
• Tee (1 1/2” FPT Brass)
1
7
• Cap
1
8
• Bracket
1
9
• Wall Anchor (3/16” x 1 1/4”)
5
10
• Washer Fender (1/4 Bolt x 1” O.D.)
5
11
• Screw (#8 x 1 1/2” Pan)
5
12
• Cross
1
13
• Reducer Bushing (2” x 1 1/2”)
2
14
• Pipe Nipple (1 1/2” NPT)
4
15
• Check Valve
2
16
• Union (2” NPT x 2” NPT)
1
17
• Hose Assembly (2”)
1
18
• Paralleling Harness
1
19
• Reducer Bushing (2” x 1”)
1
All
20
• Nipple (1” NPT)
1
21
• Fitting (1 1/2” Y Female)
1
all
22
• Adapter (1 1/2” Hose)
3
23
• Adapter PVC (1/2”)
1
14
13014-0557-00
13
14014-0512-00
14
029-3911-00
18
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Qty.
1
12014-0556-00
15
015-2750-00
Description
Tee Assembly (single to twin kit, includes items
2 - 22)
014-0559-00
[Revised: 10/3/17]
17
16
014-0551-00
E-7
15
Always verify model & serial number
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10577800
5
277002010
3014-0518-00
2
4014-0551-00
6029-3773-01
029-3839-00
1
Drain Assembly
Item
Description
Qty.
1
Drain Assembly (includes Items 2 - 4)
Refer to: Separator
1
Ref
2
• Brass Nipple (1 1/2”)
2
3
1
All
• Brass Tee (1 1/2 FPT, apply included thread
locking adhesive)
4
• Check Valve (1 1/2”)
V998996 thru V1651530
5
Plug (1 1/2 NPT)
Refer to: Separator
6
Drain Hose
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
[Revised: 4/22/15]
E-8
Always verify model & serial number
1
1
Ref
1
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10577800
5
2014-0512-00
3014-0513-00
2
4014-0551-00
6029-3773-01
029-3839-00
1
Drain Assembly
Item
Description
Qty.
1
Drain Assembly (includes Items 2 - 4)
Refer to: Separator
1
Ref
2
• Brass Nipple (1 1/2”)
2
3
1
All
• Brass Tee (1 1/2 FPT, apply included thread
locking adhesive)
4
• Check Valve (1 1/2”)
V1651531 thru Present
5
Plug (1 1/2 NPT)
Refer to: Separator
6
Drain Hose
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
[Revised: 4/22/15]
E-8.1
Always verify model & serial number
1
1
Ref
1
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21
030-1913-00-366
040-0312-00
029-5134-00
3
2
462700113
6002-1439-00
5BWR20390
1
a) 029-5135-00
b) 029-5135-01
c) 029-5135-02
20
040-0010-109
Vacuum Base Unit
029-3802-00
Item
14
65959902
19
65963800
7
030-1914-00-366
3
15
17
002-1438-00
16
62977901
13
18
029-5105-00
12
Note
Single models require one vacuum assembly.
Twin models require two vacuum assemblies.
042-0626-00
11
9BBT20106
016-1059-00
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
8MMS72090
10
All
1
Description
Base Unit Assembly (includes items 2 - 17)
a) G3, G6
b) G5, G10
c) G7, G14
E-9
1
2
• Top Plate Assembly
1
3
• Bolt (5/16”-18 x 1/2” Hex Head)
12
4
• Bolt (1/4”-20 Hex Head)
3
5
• Flatwasher (1/4”)
3
6
• Rear Cover Assembly (includes a fan kit)
1
7
• Right Panel
1
8
• Glide (Non-Skid)
4
9
• Bolt (5/16”-18 x 3/4” Hex Head)
16
10
• Caster
4
11
• Bolt (M8 x 10 mm Hex Head)
3
12
• Base Plate Assembly
1
13
• Fastener 1/4 turn
2
14
• Hex washer head screw #10 x 1/2”
2
15
• Tapered Pin
2
16
• Front Cover
Ref
17
• Refer to: Vacuum Base Unit Pump Assembly/
Motor
REF
18
• Right Panel Cover and Screws
Refer to: Electrical Box Covers
Ref
19
Electrical Cover Assembly
20
Pan head Phillips Screws (#10 x 3/8”)
2
21
• Left Panel
1
22
Belt Tension Checker Tool (016-1064-00) (Not
Shown)
AR
23
Touch Up Paint (Brush-On 067-0053-02-366) (Not
Shown)
AR
24
Touch Up-Paint (Aerosol 067-0053-01-366) (Not
Shown)
AR
all
[Revised: 03/30/16]
Qty.
Always verify model & serial number
1
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19002-1851-00
14002-1435-00
15 040-0375-00
17014-0506-00
18014-0708-00
014-0495-00
13
a) 20211100
b) 016-1056-00
17
16
1002-2093-00
610567300
10562900
1262700101
5
2002-2091-00
10
Vacuum Base Unit Pump Assembly/Motor
8
Item
3029-5127-00
4040-0500-31
720210900
1110593400
862600208
962700111
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Note
Single models require one vacuum assembly.
Twin models require two vacuum assemblies.
All
all
[Revised: 6/22/16]
E-10
Description
Qty.
1
Pump Assembly ( includes 2,17, & 18)
1
2
Sigh Glass (Torque to 132 in/lbs)
1
3
Motor Mount Assembly
1
4
Screw (1/2”-13 x 4” Hex Head Flange)
2
5
Spacer
1
6
Spring Pin (1/4” x 1 5/8”)
1
7
Belt Tensioner
1
8
Washer (3/8” Spring Lock)
2
9
Bolt (3/8”-16 x 3” Hex Head)
1
10
Clevis Adapter (included with item 11)
2
11
Pulley asm.
1
12
Bolt (3/8”-16 x 1 1/2 Hex Head)
1
13
Belt
a) G3, G5, G6, G10
b) G7, G14
1
14
Motor , 3 HP, 3 Phase
1
15
Screw (3/8”-16 x 3/4”)
4
16
Vacuum Relief Valve (VRV), 1”
1
17
Adapter, 1” HB x 1” M
2
18
Tee, 1”
1
19
1” ID Hose Assembly
20
Gear Lube (064-0028-01) (Not Shown)
Always verify model & serial number
1
AR
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014-0724-00
10
11014-0725-00
2
014-0506-00
12014-0616-00
10589900
002-1440-00
8
77000092
Parts 7 thru 9 no longer available.
Order kit # 002-1910-05.
3
014-0533-00
1
4
6
016-1070-00
62903609
Vacuum Base Unit Loose Parts
Item
5
Models:
Serial Numbers:
014-0725-00
13014-0549-01
9
7
014-0282-02
11
20205401
All
V2200 - V1648734
© Midmark Corporation 2010 SF-1943
[Revised: 09/02/15]
E-11
Description
Qty.
1
Loose Parts Kit (includes Items 2 - 13)
2
• Fitting (1” x 1” MPT)
3
3
• Bushing (1” FPT x 2” MPT) (NLA)
1
4
• Reducer (1 1/2” x 1” NPT) (NLA)
1
5
• Hose, Exhaust
1
6
• Wrench (Twin Open-End 1/2”)
7
• Poly Flo Tubing (NLA)
8
• Barb Fitting, Male (NLA)
1
9
• Reducer, 1/2” NPT x x1/8” NPT (NLA)
1
10
• Elbow, 1.5”, PVC, Sch 40 x NPTF
2
11
• Bushing, 1.5” x 1”, PVC, Sch 40 SIPIGOT x
NPTF
1
12
• Tee, 1.5”, PVC, Sch 40, SCKWELD x SCKWELD
1
13
• Bushing, 1.5” x .5” PVC, Sch 40 SPIGOT x
NPTF
1
Always verify model & serial number
1
1
12 ft
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2
014-0724-00
3014-0725-00
4
014-0506-00
5014-0616-00
6014-0549-01
002-1440-00
1
11
62903606
014-0347-0010
002-1910-05
9
8
7
016-1070-00
20205401
Vacuum Base Unit Loose Parts
Item
Models:
Serial Numbers:
All
V1648735- Present
© Midmark Corporation 2010 SF-1943
[Revised: 9/18/17]
E-11.1
Description
Qty.
1
Loose Parts Kit (includes Items 2 - 11)
1
2
• Elbow, 1.5”, PVC, Sch 40 x NPTF
2
3
• Reducer, 1 1/2” MPT - 1” NPT
1
4
• Fitting (1” x 1” MPT)
3
5
• Tee, 1.5”, PVC, Sch 40, SCKWELD x SCKWELD
1
6
• Bushing, 1.5” x .5” PVC, Sch 40 SPIGOT x
NPTF
1
7
• Hose, Exhaust
1
8
• Wrench (Twin Open-End 1/2”)
9
• 3/8” Drain Tube Kit (includes Items 10 & 11)
10
• Barb Fitting, Male
1
11
• Reducer, 1/2” NPT x 1/4” NPT
1
Always verify model & serial number
1
12 ft
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029-5125-00
015-0002-06
23
053-2060-00
22
4040-0004-22
5
2
029-5108-00
053-1858-01
3
1
053-1664-00-000
6002-1445-00
65972500 21
8BSW20455
20
040-0008-79
Note
7002-1442-00
9002-1447-00
122357
19
Single models require one vacuum assembly.
Twin models require two vacuum assemblies.
Item #24 was added to the design after
production started for factory test purposes. It is
an insulator to the EMC/RFI line filter and can
be installed on earlier units, but not needed.
Electrical Box
Item
62947602
18
045-0001-31
1062502416
8
11015-0346-36
17
16122010
053-2274-00
14002-1446-00
24
8
015-1534-00
13015-2817-00
002-1434-00
Models:
Serial Numbers:
12
8
15
All
V998996 to V1035120
© Midmark Corporation 2010 SF-1943
[Revised: 5/12/15]
E-12
8
Description
Qty.
1
Electrical Box Assembly (includes Items 2 - 24)
1
2
• Electrical Box
1
3
• Bushing
1
4
• Screw (#4-40 x 5/16” Pan Head)
6
5
• Standoff
5
6
• PCB Assembly and Power Supply
(PC Board and Daughter Card)
1
7
• 24 VAC Harness (Transformer)
1
8
• Screw (# 8 - 32 x 1/2”)
18
9
• Variable Frequency Drive Kit
(Version 5.04 Software)
1
10
• Screw (#6-32 x 1/2” Pan Head Phillips)
1
11
• Fuse (1/8 A, 250 V)
2
12
• Fuseblock (1/4” x 1 1/4”)
1
13
• Contactor
14
• Conduit (6ft)
15
• EMC/RFI Line Filter
1
16
• Pem Stud (#10-32 x 7/8”)
1
17
• Lock Washer
1
18
• Cord Clip
1
19
• Nut Keps (#10-32)
3
20
• Screw (#8-32 x 1/2” Pan Head)
2
21
• Fan Thermal Switch
1
22
• Push Mount Cable Tie
7
23
• Standoff
1
24
• Spacer, VFD Filter
1
Always verify model & serial number
1
6 ft.
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029-5125-00
015-0002-06
23
053-2060-00
22
65972500
4040-0004-22
5
2
029-5108-00
053-1858-01
3
1
053-1664-00-000
6002-1445-00
Note
21
040-0008-79
Single models require one vacuum assembly.
Twin models require two vacuum assemblies.
Item #24 was added to the design after
production started for factory test purposes. It is
an insulator to the EMC/RFI line filter and can
be installed on earlier units, but not needed.
7002-1442-00
8BSW20455
20
9002-1447-00
122357
19
Electrical Box
Item
62947602
18
045-0001-31
8
17
053-2274-00
16122010
14002-1446-00
24
8
11015-0346-36
12
015-1534-00
13015-2817-00
002-1434-00
Models:
Serial Numbers:
1062502416
15
8
All
V1035121 to V1648734
© Midmark Corporation 2010 SF-1943
[Revised: 5/12/15]
E-12.1
8
Description
Qty.
1
Electrical Box Assembly (includes Items 2 - 24)
1
2
• Electrical Box
1
3
• Bushing
1
4
• Screw (#4-40 x 5/16” Pan Head)
6
5
• Standoff
5
6
• PCB Assembly and Power Supply
(PC Board and Daughter Card)
1
7
• 24 VAC Harness (Transformer)
1
8
• Screw (# 8 - 32 x 1/2”)
18
9
• Variable Frequency Drive Kit
Version 5.05 Software)
1
10
• Screw (#6-32 x 1/2” Pan Head Phillips)
1
11
• Fuse (1/8 A, 250 V)
2
12
• Fuseblock (1/4” x 1 1/4”)
1
13
• Contactor
14
• Conduit (6ft)
15
• EMC/RFI Line Filter
1
16
• Pem Stud (#10-32 x 7/8”)
1
17
• Lock Washer
1
18
• Cord Clip
1
19
• Nut Keps (#10-32)
3
20
• Screw (#8-32 x 1/2” Pan Head)
2
21
• Fan Thermal Switch
1
22
• Push Mount Cable Tie
7
23
• Standoff
1
24
• Spacer, VFD Filter
Always verify model & serial number
1
6 ft.
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029-5125-00
015-0002-06
029-5108-00
053-1858-01
23
053-2060-00
22
65972500
3
1
4040-0004-22
5
2
053-1664-00-000
6002-1445-00
Note
21
040-0008-79
Single models require one vacuum assembly.
Twin models require two vacuum assemblies.
Item #24 was added to the design after
production started for factory test purposes. It is
an insulator to the EMC/RFI line filter and can
be installed on earlier units, but not needed.
7002-1442-00
8BSW20455
20
9002-1447-00
122357
19
Electrical Box
Item
62947602
18
045-0001-31
17
1062502416
8
16122010
14002-1446-00
11015-0346-36
12
015-1534-00
13015-2817-00
002-1434-00
15
8
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
All
V1648735 to Present
[Revised: 5/12/15]
E-12.2
8
Description
Qty.
1
Electrical Box Assembly (includes Items 2 - 24)
1
2
• Electrical Box
1
3
• Bushing
1
4
• Screw (#4-40 x 5/16” Pan Head)
6
5
• Standoff
5
6
• PCB Assembly and Power Supply
(PC Board and Daughter Card)
1
7
• 24 VAC Harness (Transformer)
1
8
• Screw (# 8 - 32 x 1/2”)
14
9
• Variable Frequency Drive Kit
Version 5.05 Software)
1
10
• Screw (#6-32 x 1/2” Pan Head Phillips)
1
11
• Fuse (1/8 A, 250 V)
2
12
• Fuseblock (1/4” x 1 1/4”)
1
13
• Contactor
14
• Conduit (6ft)
15
• EMC/RFI Line Filter
1
16
• Pem Stud (#10-32 x 7/8”)
1
17
• Lock Washer
1
18
• Cord Clip
1
19
• Nut Keps (#10-32)
3
20
• Screw (#8-32 x 1/2” Pan Head)
2
21
• Fan Thermal Switch
1
22
• Push Mount Cable Tie
7
23
• Standoff
1
Always verify model & serial number
1
6 ft.
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5
1
002-1437-00
4
62502424
3
040-0010-109
2
Electrical Box Covers
Item
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Description
Qty.
1
Electrical Cover
1
All
2
Screw (#10-24 x 3/8” Pan Head Phillips)
6
3
Screw (#8 x 3/8” Self Tap)
all
4
Refer to: Vacuum Base Unit
Ref
5
Refer to: Electrical Box
Ref
[Revised: 3/31/14]
E-13
Always verify model & serial number
8
Back
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Testing / Repair..................................B-3
2
9
61402702
Test
362977400
4050-6581-00-312
5040-0010-159
002-1433-00
20235600
8
1
7
Note
Single models require one vacuum assembly.
Twin models require two vacuum assemblies.
Test
ECS10422
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Front Panel Controls
6
Item
Description
Qty.
1
Keypad Kit
1
2
Keps Nut (#6-32)
4
3
Limit Switch
1
4
Mounting Bracket
1
5
Screw (10-24 x 5/8”)
1
All
6
On/Off Switch
1
7
Hour Meter
all
8
Refer to: Vacuum Base Unit
Ref
9
Refer to: Electrical Box
Ref
[Revised: 3/31/14]
E-14
Always verify model & serial number
1
Back
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2
1
365962401
2
002-1444-00
410595200
2
015-2746-00
5
Fan Assembly
Item
Models:
Serial Numbers:
© Midmark Corporation 2010 SF-1943
Description
Qty.
1
Rear Cover Assembly (includes Items 2 - 4)
Refer to: Vacuum Base Unit
1
Ref
All
2
Fan Kit (includes item #5)
3
Edge Trim
AR
all
4
Weather Stripping (1/2” x 1/16”)
AR
5
Daisy Chain Cord
[Revised: 6/10/13]
E-15
Always verify model & serial number
1
1
Back
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040-0312-96
053-2309-00
1
2
041-0312-06
3
Shipping Bolt Assembly
(Only use when moving base unit)
Models:
Serial Numbers:
Item
All
V1149063 thru V1291721
© Midmark Corporation 2010 SF-1943
[Revised: 6/26/12]
E-16
Description
Qty.
1
Screw (.312-18 x 1/2”)
2
2
Grommet (1/2”, 3/16”)
2
3
Hex Jam Nut (.312-18)
2
Always verify model & serial number
Back
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040-0312-96
1
62600117
2
3
053-2309-00
041-0312-06
4
Shipping Bolt Assembly
(Only use when moving base unit)
Item
Qty.
All
1
Screw (.312-18 x 1/2”)
2
2
Grommet (1/2”, 3/16”)
2
V1291722 thru Present
3
Washer (5/16”)
2
4
Hex Jam Nut (.312-18)
2
Models:
Serial Numbers:
Description
© Midmark Corporation 2010 SF-1943
[Revised: 6/26/12]
E-16.1
Always verify model & serial number
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SUBJECT TO CHANGE WITHOUT NOTICE
Midmark Corporation
For contact information, go to:
www.midmark.com
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