Wells WV-4HS Operating instructions

504
WELLS BLOOMFIELD, LLC
2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439
telephone: 775-689-5707
fax: 775-689-5976
www.wellsbloomfield.com
SUPPLEMENTAL
SERVICE
INSTRUCTIONS
WV-4HF
WV-4HFRW
WV-4HS
WV-4HSRW
ELECTRIC 4-BURNER
HOTPLATE
with
VENTLESS
HOOD
SYSTEM
IMPORTANT: WELLS BLOOMFIELD, LLC PROPRIETARY INFORMATION.
DISSEMINATION OF THIS INFORMATION TO ANYONE OTHER THAN
WELLS AUTHORIZED SERVICE AGENTS IS STRICTLY PROHIBITED.
TECHNICAL CONTENT OF THIS MANUAL IS DESIGNED FOR
USE BY QUALIFIED PROFESSIONAL TECHNICIANS ONLY.
PRINTED IN UNITED STATES OF AMERICA
p/n SV504 Rev.(-)
S504
080519
cps
PRECAUTIONS AND GENERAL INFORMATION
GENERAL
WARNING:
RISK OF
INJURY
Installation procedures must
be performed by a qualified
technician with full knowledge
of all applicable electrical and
plumbing codes. Failure can
result in personal injury and
property damage.
WARNING:
ELECTRIC
SHOCK HAZARD
All servicing requiring access
to non-insulated electrical
components must be
performed by a qualified
technician.
Some procedures involve
exposed live circuits. Use all
due caution to avoid contact
with live electric circuits.
Failure to follow this warning
can result in severe electrical
shock.
This appliance is intended for use in commercial establishments
only.
This appliance is intended to prepare food for human consumption.
No other use is recommended or authorized by the manufacturer or its
agents.
Operators of this appliance must be familiar with the appliance use,
limitations and associated restrictions. Operating instructions must be
read and understood by all persons using or installing this appliance.
Cleanliness of this appliance is essential to good sanitation. Read and
follow all included cleaning instructions and schedules to ensure the
safety of the food product.
Disconnect this appliance from electrical power before performing any
maintenance or servicing.
DO NOT splash or pour water on, in or over any controls, control
panel or wiring.
The technical content of this manual, including any wiring diagrams,
schematics, parts breakdown illustrations and/or adjustment
procedures, is intended for use by qualified technical personnel.
Any procedure which requires the use of tools must be performed by a
qualified technician. All service to the fire suppression system must be
performed by an authorized Ansul® agency.
This appliance is made in the USA. Unless otherwise noted, this
appliance has American sizes on all hardware.
IMPORTANT INSTALLATION NOTE:
CAUTION:
RISK OF
DAMAGE
This installation requires a minimum ceiling height of 96" in order to
maintain adequate airflow.
SV504 SvcManual WV-4H(RW)
DO NOT connect or energize
this appliance until all
installation instructions are
read and followed. Damage to
the appliance will result if
these instructions are not
followed.
6” clearance is required from back and sides of the appliance to any
combustible or non-combustible surface.
xi
TABLE OF CONTENTS
GENERAL
GENERAL
Precautions & General Information …………….………… xi
Specifications ..……………………………...................….. 1
Features & Operating Controls ……………………………. 2
VENTILATOR HOOD SECTION
Filter Arrangement .......................................................... 6
Service Indicator Lights .…….......................................… 7
Operational Notes ........................................................... 8
Filter System ................................................................... 10
Vacuum System .............................................................. 11
Ansul® System ............................................................... 12
Troubleshooting Suggestions ……………………………… 14
COOKTOP SECTION
Element Replacement ..................................................... 16
Troubleshooting Suggestions .......................................... 16
DRAWER WARMER SECTION
Operational Notes ............................................................. 18
RWT-Style Controller ....................................................... 19
Troubleshooting Suggestions ........................................... 20
EXPLODED VIEWS AND PARTS LISTS
Ansul® Components ......................................................... 21
Hood Section .................................................................... 22
Hotplate Section ............................................................... 24
Drawer Warmer Section ................................................... 25
WIRING DIAGRAMS & SCHEMATICS ............................... 26
OTHER DOCUMENTS
Material Safety Data Sheet—Ansulex Low pH ................. 32
Maintenance Logs ............................................................ 34
SPECIFICATIONS
SV504 SvcManual WV-4H(RW)
MODEL
WV-4HF
DRAWER
WARMER
L2
L3
1ø
AMPS
WATTS
L1
208V
16
15
26
30
6,300
240V
18
17
30
35
8,300
208V
19
15
30
34
7,000
240V
27
22
43
48
11,600
208V
20
19
34
39
8,100
77-1/4" High
240V
23
22
39
45
10,700
35-1/2" Deep
208V
19
15
30
34
7,000
240V
22
17
34
38
9,200
DIMENSIONS
NO
WV-4HFRW
WV-4HFRWT
YES
WV-4HS
NO
WV-4HSRW
WV-4HSRWT
3ø AMPS
VOLTS
60Hz
30-1/4" Wide
(42-1/4" incl. spacers)
YES
INTRODUCTION
This manual contains information needed to properly service and repair Wells Bloomfield free-standing
four-burner electric hotplate with ventless hood system.
This manual applies to the following Wells Manufacturing models:
WV-4HF, WV-4HFRW and WV-4HFRWT
WV-4HS, WV-4HSRW and WV-4HSRWT
For installation, operation and maintenance instructions, refer to Operation Manual p/n 303903.
1
FEATURES & OPERATING CONTROLS
GENERAL
28
a11
VENTILATOR CONTROL PANEL
see pages 4 & 5
a15
56
53
19
16
18
16
18
23
23
COOKTOP CONTROL PANEL
see pages 4 & 5
70
22
a10
40
12
41
44
a6
a31
43
38
9
8
Fig. 1 Ventilator Section Operating Features & Controls
2
38
SV504 SvcManual WV-4H(RW)
WARMER CONTROLS
see pages 4 & 5
42
VENTILATOR SECTION
DESCRIPTION
COMMENT
a6.
FIRE SUPPRESSION
AGENT TANK (1.5 gal.)
Container for Ansulex™ Low-pH liquid fire suppression liquid.
8.
ADJUSTABLE (FRONT)
LEG
Allows the unit to be leveled.
9.
RIGID (REAR) CASTER
Allows the unit to be easily positioned by lifting the front of the
unit slightly.
a10.
MANUAL PULL STATION
Provides a means of manual activation of the fire suppression
system. PULL ONLY IN CASE OF FIRE!
a11.
FUSIBLE LINKS
Automatically activates fire suppression system in the event of
fire on the cooktop.
LOWER REAR ACCESS
PANEL
Allows access to Ansul® fire suppression agent tank (a6) and
controls also access to main power contactor (41).
DISCHARGE NOZZLE
Fire suppression media discharges here (2 places).
16.
GREASE BAFFLE
Extracts and drains most grease and moisture from the air flow.
18.
PRE-FILTER ASSEMBLY
Comprises the PRE-FILTER FRAME and a replaceable
PRE-FILTER. Stops larger particles of grease from
reaching the FILTER PACK for reduced maintenance
costs.
19.
HEPA/CHARCOAL FILTER
PACK
Stops most grease and smoke particles. Also assists in some
cooking odor removal.
22.
GREASE CUP
Collects grease/moisture drained from grease trough (23).
23.
GREASE TROUGH
Directs grease/moisture removed by grease baffle to grease
cup.
28.
VENTILATOR EXHAUST
DUCT
Exit point for ventilator airflow - on top left rear of unit.
DO NOT BLOCK
STATUS INDICATOR
Displays status of fire suppression system (COCKED - FIRED)
If FIRED, a buzzer will sound continuously.
38.
POWER CORD
6’ cord and cap. Plug for NEMA 15-60R (receptacle by user).
40.
WARMER RELAY
Provides power to roll warmer section. Energized at all times
except during fire safety shut-down.
41.
POWER CONTACTOR
Energizes cooktop only while ventilator section is sensed as
operational.
42.
BUILDING FIRE ALARM
RELAY
Reports fire alarm condition to building fire management
system.
43.
GROUND LUG
Ground wire of power cord connects here.
44.
INTERLOCK TERMINAL
Provides connection for shut-down control by building fire
management system.
56.
VENTILATOR FAN
Provides air movement for ventilation.
70.
COOLING FAN
Provides cooling for cooktop controls.
ITEM
12.
a15.
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a31.
3
GENERAL
FEATURES & OPERATING CONTROLS (continued)
FEATURES & OPERATING CONTROLS (continued)
GENERAL
V1
V2
V3
V4
V5
V6
Fig. 2 Ventilator Section Controls & Indicator Lights
H5
H5
H5
H5
H1
H2
H3
H4
Fig. 3 Cooktop Section Controls & Indicator Lights
HUMITROL
RACK
ELEMENT SUPPORT
SPIRAL
HEATING
ELEMENT
DRAWER
INSERT
PAN
RW-STYLE
HEATING ELEMENT
(ROTATED)
FR
W3
W4
DRIP PAN
T
ON
SOLID
PLATE
HEATING
ELEMENT
W2
FR
T
ON
W5
ROLL WARMER
HOTPLAT E COOKTOP
RWT-STYLE
W6
Fig. 4 Cooktop & Warmer Drawer Operating Features & Controls
4
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W1
ITEM
DESCRIPTION
COMMENT
VENTILATOR SECTION CONTROLS
V1
POWER SWITCH
Energizes blower motor. If, after 10 seconds, proper
conditions are met, cooktop is energized.
V2
POWER ON INDICATOR
GREEN. Glows when POWER switch is ON.
V3
CHECK FILTERS ALARM
INDICATOR
AMBER. Glows if one or more filters are out of position. Check
all filters and baffles for proper installation.
V4*
REPLACE PREFILTER
ALARM INDICATOR
AMBER. Glows when PREFILTER is approaching the end of its
service life and must soon be replaced.
V5*
REPLACE FILTER PACK
ALARM INDICATOR
AMBER. Glows when FILTER PACK is approaching the end of
its service life and must soon be replaced.
V6*
SERVICE REQUIRED
ALARM INDICATOR
RED. Glows when PREFILTER and/or FILTER PACK has
reached the end of its service life and is too loaded to allow
sufficient air flow. Filter MUST be replaced. Appliance is SHUT
DOWN until expended filters are replaced.
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COOKTOP SECTION CONTROLS
H1
LEFT FRONT HOTPLATE
CONTROL
Infinite switch control of temperature of one hotplate section.
H2
LEFT REAR HOTPLATE
CONTROL
Infinite switch control of temperature of one hotplate section.
H3
RIGHT REAR HOTPLATE
CONTROL
Infinite switch control of temperature of one hotplate section.
H4
RIGHT FRONT HOTPLATE
CONTROL
Infinite switch control of temperature of one hotplate section.
H5
POWER ON INDICATOR
H6
HOT SURFACE
INDICATOR
AMBER. Glows when associated temperature control is turned
ON.
RED. Glows any time surface is above 150ºF
OPTIONAL WARMER SECTION CONTROLS
W1
WARMER TEMPERATURE
CONTROL
Infinite switch control of temperature of one warmer drawer.
W2
POWER ON INDICATOR
AMBER. Glows when associated temperature control is turned
ON.
W3
THERMOMETER
(OPTIONAL )
Shows temperature in warmer drawer. Must be ordered at time
of initial equipment build.
W4
HUMIDITY CONTROL
Slide control of shutters to control air circulation within the
warmer drawer.
W5
POWER SWITCH
Energize an individual warmer drawer.
W6
CONTROL MODULE
Adjust setopint, view setopint and cavity temperatures.
5
GENERAL
FEATURES & OPERATING CONTROLS (continued)
HOOD SECTION - FILTER ARRANGEMENT
FAN
WALL OF UNIT
FILTER PA CK
SE AL
FILTER PACK
FILTER PA CK
AIR FLOW
VENTILATOR HOOD
FILTER PA CK
PO SITIO N
SWITCH
HOL DE R CLIP
GRE ASE B AFFLE
PO SITIO N
SWITCH
H OLDER CLIP
CLIPS ONTO
LEDGE
PRE -FILTER
AS SEMB LY
GRE ASE
BA FFL E
GRE ASE
TROUGH
PRE -FILTER
NOTE: AIR FL OW A RRO W
PO INTS AWAY FROM
INSTAL LER WHEN
PRO PERLY INSTA LLE D
FILTER HOOK
R
E
TE
R
FILTER
HOOK
FILTER
RAIL
FILTER
HANDLE
FILTER
FRAME
NOTE: P RE-FILTER IS S ENSE D
AS B EING IN POS ITION BY THE
PRE SSURE DROP A CRO SS IT.
6
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P
IL
-F
HOOD SECTION - SERVICE INDICATOR LIGHTS
POWER SWITCH
SV504 SvcManual WV-4H(RW)
INDICATOR LIGHT
When lit, indicates that electrical power is available,
(GREEN) VENTILATOR
and that the power switch (V.01) is turned ON.
POWER ON
INDICATOR LIGHT
(AMBER) CHECK
FILTERS (POSITION)
When lit, indicates that the BAFFLE, PRE-FILTER
and/or FILTER PACK is not in its proper position,
or that an interlock switch is out of adjustment.
Controlled by: Plunger switches position monitors
for Filter Pack and Grease Baffle; and, vacuum
switch S3 for Pre-Filter.
INDICATOR LIGHT
(AMBER) REPLACE
PREFILTER
When lit, indicates that the pre-filter is approaching
the end of its service life.
ALWAYS HAVE A SPARE PRE-FILTER ON
HAND FOR QUICK REPLACEMENT.
Controlled by vacuum switch S1.
INDICATOR LIGHT
(AMBER) REPLACE
FILTER PACK
When lit, indicates that the filter pack is approaching
the end of its service life.
REPLACE FILTER PACK PROMPTLY!
Controlled by vacuum switch S2.
INDICATOR LIGHT
(RED) SERVICE
REQUIRED
Indicates that either the pre-filter or the filter pack is
individually clogged (the individual indicator light
may be lit), or that the the airflow drop across both
filters is critical. As a cost saving measure, always
change a dirty pre-filter first (when lights V.04 &
V.05 are not lit, and red light V.06 is on).
Note: Power to the cooking appliance will be
de-energized whenever this RED “SERVICE
REQUIRED” indicator light is lit. When lit, the air
flow is insufficient to meet appliance vapor capture
levels requirements.
Controlled by vacuum switch S4.
7
VENTILATOR HOOD
Energizes the ventilator section. When all three
filters are sensed as being in their proper position,
and sufficient airflow is proven, the cooking
appliance contactor is energized.
HOOD SECTION - OPERATIONAL NOTES
WARNING:
FIRE AND HEALTH
HAZARDS
VENTILATOR HOOD
DO NOT bypass or attempt to
bypass the filter placement
interlocks. Operating the
appliance without filters properly
in place will compromise the fire
protection and air filtration
capabilities of this unit.
Serious personal injury and/or
substantial property damage may
result.
NOTICE:
Operating without all filters
properly in place, and/or
operating with filter placement
interlocks defeated will void the
manufacturer’s warranty.
IMPORTANT:
NEVER wash the PREFILTER or
FILTER PACK.This will shut
down the cooking appliance.
(Red “SERVICE REQUIRED”
light will turn ON).
REPLACE PREFILTER and REPLACE FILTER PACK indicator lights
provide a timely warning that a system shut-down is imminent. The
actual time between the indicator light coming on and the loss of
cooking appliance power will depend upon the cooking conditions.
Anytime a dirty PRE-FILTER is replaced, the system airflow will
increase. If the condition of the FILTER PACK is marginal, the
REPLACE FILTER PACK light could then come on. If this happens, a
fresh FILTER PACK must be installed within a reasonably short time.
Loss of airflow through the old filter pack will soon cause a system
shut-down when the airflow falls below minimum vapor capture levels.
KEEP A SPARE FILTER PACK ON HAND.
IMPORTANT: If you decide to “get the most” out of the old filter pack,
and continue to use it until a system shut-down happens, it is advisable
to have a fresh filter pack readily at hand, and have someone available
who is capable of replacing it. Otherwise, you may experience an
extended down time, with consequent associated loss of business.
The manufacturer assumes no liability for loss of business due to
a system shutdown caused by a dirty pre-filter and/or filter pack
(i.e. red SERVICE REQUIRED light is on), when the user fails to
have the proper replacement pre-filter and/or filter pack on hand.
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8
HOOD SECTION - OPERATIONAL NOTES (continued)
FIRE
DAMPER
LABEL
SHUTTER
DAMPER
SUPPORT
FUSIBLE LINK
280ºF
FIRE DAMPER INSTRUCTIONS
1. The FIRE DAMPER is accessible by removing the TOP PANEL
The FIRE DAMPER sets in the DAMPER SUPPORT and may be
removed by lifting straight up.
SV504 SvcManual WV-4H(RW)
2. The FIRE DAMPER normally needs no maintenance. If it
becomes heavily contaminated with dust and/or grease, it must
be replaced.
3. If the FIRE DAMPER malfunctions or if the fusible link releases,
the manufacturer recommends that the entire FIRE DAMPER
ASSEMBLY be replaced.
4. Reinstall the FIRE DAMPER with the “THIS SIDE UP FOR
HORIZONTAL MOUNTING” arrow pointing away from the
BLOWER.
9
IMPORTANT:
Replace the entire fire damper
assembly if the link trips, or if the
damper mechanism becomes
heavily contaminated with dust
and/or grease.
While the fusible link alone may be
replaced, once the damper has
tripped it may no longer function
reliably.
Contact factory for pricing and
availability.
VENTILATOR HOOD
THIS SIDE UP
FOR HORIZONTAL
MOUNTING
THIS
SIDE UP
FOR VERTICAL
MOUNTING
¬ ®
AIR FLOW
ACCESS DOOR
THIS SIDE
HOOD SECTION - FILTER SYSTEM
HOOD ASSEMBLY
(LOOKING UP)
VENTILATOR HOOD
FILTER PACK
POSITION MONITOR
GREASE BAFFLE
POSITION MONITOR
PRE-FILTER
ASSEMBLY
NOTE AIR FLOW ARROWS ON
GREASE BAFFLE, PRE-FILTER
AND FILTER PACK. INSTALL
THESE COMPONENTS SUCH
THAT ARROWS POINT
TOWARD FAN
FILTER
PACK
GREASE
BAFFLE
1. The GREASE BAFFLE separates grease particles and water vapor
from the air stream by the centrifugal force of the air moving through
its inter-leaved baffle plates. Ejecta is collected in the GREASE CUP
through drain holes in the baffle frame and cabinet.
The GREASE BAFFLE POSITION MONITOR plunger switch controls
electric power to the ventilator fan.
NOTE:
The charcoal portion of the
filter pack is an aid in
controlling cooking odors
only. It will not completely
eliminate such odors.
2. The PRE-FILTER is composed of a replaceable media filter and a
filter-retaining gage. The pre-filter captures the bulk of grease vapors.
Pre-filter position is monitored by a vacuum switch, which is in the
control circuit of the cooking appliance contactor.
3. The FILTER PACK is composed of a high-efficiency filter to capture
grease vapors down to a very small particle size; and, an activated
charcoal filter to help control cooking odors.
The FILTER PACK POSITION MONITOR plunger switch is in the
control circuit of the cooking appliance contactor.
10
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NOTE:
Change the pre-filter as
soon as the "REPLACE
PRE-FILTER" indicator
glows in order to extend the
service life of the filter pack.
HOOD SECTION - VACUUM SYSTEM
FAN
PORT A
VS4
VENTILATOR HOOD
PORT A
PORT B
VS1
FAN
PORT C
PORT C
PORT C
VS3
PORT B
PLENUM PORT
(AFTER FILTER PACK)
VS2
SV504 SvcManual WV-4H(RW)
VS2
FILTER PACK ALERT
Will illuminate "REPLACE FILTER PACK"
indicator if pressure drop across the filter
pack exceeds setting.
VS3
PRE-FILTER ALERT
Will illuminate "REPLACE PRE-FILTER"
indicator if pressure drop across the prefilter exceeds setting.
VS4
AIR FLOW MONITOR
Pressure drop must exceed setting before
cooking appliance is energized. As filters
become plugged, airflow decreases.
Beyond the useful life of the filters, air flow
will be insufficient to maintain the required
pressure drop, which will shut-down
ventilator fan and cooking appliance and
illuminate "SERVICE REQUIRED"
indicator.
GREASE
BAFFLE
PREFILTER
SWITCH
VS1
PRESSURE
RISE FROM
FAN
PRESSURE
DROP ACROSS
FILTER PACK
PRE-FILTER POSITION MONITOR
Unit will not function unless a pre-filter
is properly installed, as sensed by the
pressure drop across it. Pressure drop
across the pre-filter must exceed setting
before cooking appliance is energized.
Insufficient pressure drop will illuminate
"CHECK FILTER" indicator.
AMBIENT
PRESSURE
VS1
PRESSURE
DROP ACROSS
BAFFLE
SWITCH FUNCTION
PRESSURE
DROP ACROSS
PRE-FILTER
CABINET PORT
(BEFORE FILTER PACK)
FILTER
PACK
FAN
SWITCH
VS2
SWITCH
VS4
AIR FLOW
SWITCH
VS3
IMPORTANT:
Vacuum switch settings are factory set, and are not
adjustable.
11
HOOD SECTION - ANSUL® FIRE DETECTION SYSTEM
HOOD ASSE MBLY
VIEWED FROM REAR
DETECTOR
IN PLENUM
212ºF
212ºF
VENTILATOR HOOD
IN
CA
FI
SE
RE OF
P
H U
A LL
N
DL
ANS
UL
E
MANUAL
PULL STATION
CABLE SITS IN
GROOVE IN
PULLEY
PULLEY
ELBOW
IMPORTANT:
All servicing of the fire
detection system to be
performed by an
authorized Ansul® agent
only.
1. Cooking appliance protected by two 212ºF fusible links connected
in series. Fuse links are located in the plenum at the entry to the
ventilator fan.
2. Fire suppression system may be activated by the manual pull station
on the front of the unit, or by a remote manual pull station if installed.
3. A microswitch in the Ansul® Automan assembly allows connection to
a building fire alarm system.
12
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MICR OSWITC H
HOOD SECTION - ANSUL® FIRE SUPPRESSION SYSTEM
HOOD ASSEMBLY
VIEWED FROM REAR
FLEX
HOSE
APPLY SEALANT TAPE
PLENUM
NOZZLE ASSY
NOZZLE 290
NOZZLE 1W
APPLY SEALANT TAPE
SEAL WITH
TEFLON TAPE
IN
SID
E
OU
TS
IDE
FIBER
WASHER
IS ALWAYS
ON THE INSIDE
CABINET WALL
SEAL WITH
TEFLON TAPE
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TYPICAL BULKHEAD
FITTING
FIRE SUPPRESSION
MEDIA TANK
PRESSURE
CARTRIDGE
1. Actuation of the Ansul® system will cause the pressure cartridge seal
to be punctured, which will pressurize the 1.5 gallon media tank. Fire
suppression media will be forced through the piping where it will spray
from the various nozzles.
2. The cooking appliance surface is protected by two type 290 nozzles.
3. The plenum area between the filters and the fan is protected by a
single type 1W nozzle.
4. The pressure integrity of the plenum bulkheads is maintained by the
use of compression fittings at the piping penetrations.
5. Nozzles are protected from grease contamination by press-on silicone
rubber caps.
13
IMPORTANT:
All servicing of the fire
suppression system to be
performed by an
authorized Ansul® agent
only.
VENTILATOR HOOD
UNDER-HOOD
MANIFOLD
HOOD SECTION - TROUBLESHOOTING SUGGESTIONS
SYMPTOM
VENTILATOR HOOD
Entire unit inoperative
No lights glow
No buzzer sounds
Cooking appliance inoperative
“POWER” light on hood ON. Vent
fan working ok with no service
Cooking appliance inoperative
“POWER” light on hood ON.
Vent fan working OK.
"SERVICE REQUIRED" light ON
POSSIBLE CAUSE
SUGGESTED REMEDY
Plug power cord into receptacle
Circuit breaker off or tripped
Reset circuit breaker
Damaged power cord
Replace power cord
Damaged power switch
Check switch. Replace as req’d.
External interlock jumper loose or
damaged (unit is not connected to
building fire control system)
Check jumper. Repair or replace
as required
External interlock open (unit
connected to building fire control
system)
Locate and rectify open circuit
condition in building fire control
system.
Contactor, wiring or connectors
damaged
Replace contactor
Repair wiring
Vacuum line to switch VS4
restricted
Check for restriction in vacuum
line to switch.
Vacuum switch VS4 open or
defective
Check vacuum switch VS4.
Replace as req’d.
Vacuum pickup port in plenum, or
vacuum port on blower plugged
Clean vacuum ports
NOTE: Vacuum port in plenum
may appear as a place to attach
a nozzle. Do not attach a nozzle
here. It will block the vacuum
signal (see pg 11).
Fire damper tripped
Replace fire damper
NOTE: While the fusible link alone
may be replaced, once the
damper has tripped it may no
longer function reliably.
Grease baffle and/or filter pack
position switch(es) open
Missing or un-seated filter assy.
Reseat filter or adjust interlock
switch.
Vacuum switch VS1 open or
damaged
Be sure pre-filter is hooked in
position. Check for damaged
vacuum line, or one that is
disconnected at the vacuum
switch or pick-up port. Also check
port for grease contamination.
Vent fan working OK, but amber
“CHECK FILTERS” light stays ON
14
SV504 SvcManual WV-4H(RW)
Unit unplugged.
HOOD SECTION - TROUBLESHOOTING SUGGESTIONS (continued)
POSSIBLE CAUSE
Prefilter is at end of service life
Vent fan working OK, but amber
“REPLACE PREFILTER” light ON. Vacuum Switch VS3 damaged
“REPLACE PREFILTER” light
turns on some of the time.
“REPLACE FILTER PACK” light
ON.
Replace prefilter
Replace vacuum switch VS3
Pre-filter frame not hooked in
position at top
Hook metal pre-filterframe at top
to prevent air blowing around filter
Pre-filter position switch SW1
misadjusted or damaged.
Check switch SW1, adjust or
replace
Prefilter is nearing end of service
life
Replace prefilter
Filter pack nearing end of its
service life
Replace filter pack
Filter pack vacuum switch VS2
Check switch VS2, repair vacuum
lines restricted or switch damaged. lines or replace switch.
Appliance newly installed and
Ansul® system not yet charged.
Vent fan not operating and buzzer
is sounding.
SUGGESTED REMEDY
Check status of Ansul® system at
rear of unit, if fired, call Ansul®
Service Distributor for set-up.
Check status of Ansul® system at
rear of unit, if fired, call Ansul®
Service Distributor for
Ansul® system has been set off by
replacement of fire suppression
overtemp condition, or manual pull
agent and propellant. If fuse link
station has been activated.
has been activated, it must be
replaced prior to re-cocking the
Ansul® system.
SV504 SvcManual WV-4H(RW)
Vent fan not operating.
Grease baffle not installed
Install grease baffle.
Buzzer silent.
Green “POWER” light ON.
Amber “CHECK FILTER” light and Grease baffle position switch SW2 Check switch SW2, adjust or
misadjusted or damaged.
replace
red “SERVICE REQUIRED” light
ON.
15
VENTILATOR HOOD
SYMPTOM
HOTPLATE SECTION
CAUTION:
SPIRAL HEATING EL:EMENT REPLACE MENT
BURN HAZARD
Applicable to Wells WV-4HS-series ventless appliances.
Hotplate burner surfaces are very
hot during operation. Allow unit to
cool before performing any service.
Wells part number 50293: Revised to the latest UL requirements,
new replacement elements may connect differently than previously
available replacement elements.
To install a new element in an existing appliance:
1. Disconnect appliance from electric power and allow to cool.
Disconnect and remove old element.
2. Power leads require #8 high-temperature copper-tin ring
terminal connectors. Ground lead requires #10 hightemperature copper-tin ring terminal connector. Replace or
install the appropriate connector terminals as required.
3. Mount new element.
COOKTOP
IMPORTANT:
This element is designed for use
with high-temperature copper-tin
terminals. Do not use stainless
steel terminals.
4. Route wiring through trim ring as shown. Connect power and
ground leads.
a. Be sure to reconnect ground wire to mounting clip of
new element.
b. Slide insulator onto new element before connecting leads.
c. When properly installed, connector screws will hold
insulator in place.
5. Reconnect appliance to electric power and test for proper
operation.
HOTPLATE SECTION - TROUBLESHOOTING SUGGESTIONS
POSSIBLE PROBLEM
SUGGESTED REMEDY
Hotplate will not heat
Hood section not "ON"
Verify that Hood Power Switch is
"ON". If "SERVICE REQUIRED"
indicator is lit, rectify filter problem.
Temperature control knobs not set to
desired temperature
Set to desired temperature
Cooling fan not operating
Check cooling fan and associated
wiring for hotplate control section.
Replace as required.
Damaged internal component
Check infinite switch, element, and
wiring. Replace damaged
components, repair wiring and loose
connections as required.
240V unit operating on 208V
Verify operating voltage
Operate on proper voltage
One hotplate does not
heat
Hotplate does not get
hot enough
16
SV504 SvcManual WV-4H(RW)
DESCRIPTION
HOTPLATE COOKTOP UNIT (continued)
SOLID (FRENCH PLATE) ELEMENT REPLACEMENT
CAUTION:
Applicable to Wells WV-4HF-series ventless appliances.
BURN HAZARD
Wells has introduced an upgraded element terminal lug for solid
(French plate) element cooktops. Units built prior to June 1, 2001
will require this upgrade when replacing elements.
1. When only the Ceramic Terminal Block is damaged and the
Element wire is not fused: Replace with Kit 503972. This
Kit replaces the Terminal Block with the new wire set.
NOTE: Kit p/n 503972 does not include the element..
Hotplate burner surfaces are very
hot during operation. Allow unit to
cool before performing any service.
ELEMENT
COLD PIN
2. If the element or element wires are damaged, or if the
connector is fused to the power leads, replace with complete
element kit 503973 (240V).
COOKTOP
SPOON SHAPED
TERMINAL LUG
2
1
SV504 SvcManual WV-4H(RW)
4
New wires with lugs spliced to
existing wire set and inserted
into new insulator. Tighten set
screws securely.
ELEMENT, NEW TERMINAL LUG AND CERAMIC INSULATOR
PN 503973 (240V)
17
IMPORTANT: Do not cut fused
wire on element to replace terminal
block, this voids U.L.
DRAWER WARMER SECTION - OPERATIONAL NOTES
OPTIONAL
HUMITROL
RACK
DRAWER
STOP
PRODUCT
PAN
LATCH
ASSEMBLY
OPTIONAL DIAL
THERMOMETER
DRAWER
ASSEMBLY
THERMOSTAT
CONTROL
KNOB
OPTIONAL ELECTRONIC CONTROL
CONTROL MODULE
POWER
SWITCH
ºF OR ºC
INDICATORS
LED READOUT
CONTROL
MODULE
"PROCESS" KEY
PROCESS
LOAD
INDICATOR
INCREMENT AND
DECREMENT KEYS
BURN HAZARD
Interior of drawer warmer cavity will
be hot during operation. Allow unit
to cool before performing any
service.
NOTE:
In the absence of a drawer warmer
appliance, the WVG-136 is
equipped with a storage cabinet in
the base. This single cabinet has
two doors.
1. The optional drawer warmer unit is a Wells RW-26HD or
RWT-26HD two-drawer roll warmer unit.
2. The drawer warmer has two individually controllable sections.
a. Control of RW-style unit is via bulb and capillary
thermostat with SPST switch.
b. Control of RWT-style unit is via electronic controller.
3. Each section is heated by a single element of roughly
rectangular configuration.
4. Drawer warmer is powered by the drawer warmer relay
5. Optional dial thermostat may be located on either or both
drawer sections.
6. Digital controller will replace thermometer-equipped units in
new production. Thermometer-equipped units are to become
obsolete.
18
SV504 SvcManual WV-4H(RW)
DRAWER WARMER
CAUTION:
DRAWER WARMER SECTION - CONTROL MODULE for RWT- STYLE UNITS
CONTROL MODULE
ITEM
1
2
3
DESCRIPTION
1
PROCESS Key:
Press to view actual temperature of cavity.
2
4 Character LED Display:
Normally shows SETPOINT temperature.
3
ºF or ºC Indicator:
Glows to indicate if unit is configured for
degrees Fahrenheit or degrees Celsius.
4
LOAD Indicator:
Glows when heating element is energized.
5
Increment and Decrement Keys:
Press UP arrow to increase
Press DOWN arrow to decrease
ºF
ºC
LOAD
PROCESS
4
5
SET SETPOINT TEMPERATURE
Press an arrow key:
UP arrow to increase
DOWN arrow to decrease
Release key when desired setpoint temperature
is displayed.
ºF
ºC
LOAD
Reading is locked into memory 3 seconds after
last key stroke.
PROCESS
DRAWER WARMER
SV504 SvcManual WV-4H(RW)
Minimum setpoint is 140ºF (60ºC)
Maximum setpoint is 250ºF (121ºC)
CHANGE DISPLAY MODE ( ºF or ºC)
Press and hold UP arrow and DOWN arrow keys
for 10 seconds.
ºF
Release keys when display reads F
LOAD
ºC
C.
Within 3 seconds, press UP arrow or DOWN arrow
key until desired indicator (ºF or ºC) glows.
PROCESS
The new value will lock into memory 3 seconds
after last keystroke.
HOLD
10 SEC.
19
DRAWER WARMER TROUBLESHOOTING SUGGESTIONS
SYMPTOM
No lights or heat
(both drawers)
No heat (one drawer)
POSSIBLE CAUSE
SUGGESTED REMEDY
Hood power switch not "ON"
Press power switch to "ON"
NOTE: Drawer warmer is
energized any time hood power
switch is "ON" and Ansul® system
is ready. Hood need not be
operating.
Temperature control not set
Set for desired temperature.
Damaged thermostat or heating
element (RW-style units)
Inspect thermostat, heating
element, wiring and connections.
Repair/replace as necessary.
Inspect controller, temperature
Damaged controller or temperature
sensor, wiring and connections.
sensor (RWT-style units)
Repair/replace as necessary.
Runaway temperature
(one drawer)
Food dries out
Inspect cap tube for kinks or
breaks. Replace thermostat.
(RWT-style units)
Unlikely to fail "hot" due to
controller or sensor malfunction.
Inspect for shorted wiring.
Humidity control (air vent) not set
OPEN air vent for dry operation.
CLOSE air vent for moist
operation.
Water in pan evaporated or low
Add water to pan.
Food contacting water
Use a Humitrol Rack
Water level too high
Water should be no more than
1/2" deep
Humidity control (air vent) not set
OPEN air vent for dry operation.
CLOSE air vent for moist
operation.
Drawer latch catch roller not
extended before closing drawer
Be sure catch roller is extended
before installing drawer.
Drawer latch damaged
Replace drawer latch
Drawer stop dirty
Clean and lubricate drawer stop
Drawer stop damaged
Replace drawer stop
Food gets soggy
Drawer falls open
Drawer falls out when opened
20
SV504 SvcManual WV-4H(RW)
DRAWER WARMER
Damaged thermostat or thermobulb capillary tube (RW-style
units)
FOR USE ONLY BY AUTHORIZED
ANSUL© SERVICE PERSONNEL
Refer to Ansul© part no. 418078-05
R-102 Restaurant Fire Suppression
System Design, Installation,
Recharge and Maintenance
ref. NOZZLE 290
ANSUL© p/n 419342
ref. ADAPTER, QUICK-SEAL 3/8”
ANSUL© p/n 77284
ref. NOZZLE 290
ANSUL© p/n 419342
FUSIBLE LINK
TYPE B 212ºF
504112
ref. NOZZLE 1W
ANSUL© p/n 419336
ref. MOUNTING BRACKET
RELEASE MECHANISM
R-102 ANSUL© p/n 79493
(NOT SHOWN)
MICROSWITCH 67273
TERM.BLOCK 53068
ASSY, PULL STATION
ANSUL©
501389
ref. CABLE, WIRE ROPE
ANSUL© p/n 15821 (50’/15m)
79653 (500’/152m) (typical)
SV504 SvcManual WV-4H(RW)
ref. PULLEY ELBOW
ANSUL© p/n 423250
(typical)
CARTRIDGE LT-20-R
ANSUL© p/n 67099
ref. TANK 1.5 GAL, ANSULEX®
ANSUL© p/n 429864
(NOT SHOWN)
ANSULEX ® EXTINGUISHING
AGENT 1.5 GAL.
ANSUL© p/n 79694
insi
de
Seal with
Teflon tape
side
Fiber
washer
is always
on the inside
ANSUL© p/n 77284
DETAIL
Cable sits in
groove in
pulley
out
cabinet wall
ANSUL© p/n 423250
DETAIL
Seal with
Teflon tape
21
EXPLODED VIEWS
PARTS BREAKDOWN for ANSUL® COMPONENTS
EXPLODED VIEWS
CABINET COMPONENTS
INTERNAL BRACKETS
FIRE DAMPER ASSY
280ºF (ref. 301187)
LABEL, CONTROL
PANEL 502782
GASKET, SILICONE
15-1/4” 502772 (2 pl)
GASKET, SILICONE
18-1/2” 502773 (2 pl)
ASSY, FILTER
PACK 22619
PREFILTER
22618
HOUSING, LIGHT
SOCKET 505098
CAGE,
PRE-FILTER
22683
BULB, APPLIANCE
100W
505100
GLASS GLOBE, LIGHT
BULB COVER 505099
GREASE CUP
504405
BAFFLE, GREASE
FILTER (TYPE 3)
22684
SV504 SvcManual WV-4H(RW)
ASSY, DOOR
LEFT 502642
MAGNET, DOOR
CATCH 66502 (2 pl)
-RW UNITS
CASTER, REAR
VCS
20804
(pk 2 fixed, 2 swivel)
CABINET DOORS
(NON -RW UNITS)
LEG, ADJUSTABLE (REAR LEG OPT.)
VCS 22649 (pk 2)
ASSY, DOOR
RIGHT 502646
22
FITTING, 1/2” CONDUIT
STRAIGHT 57748
ASSY, BLOWER
240V
502584
VACUUM SWITCH
#4
502593
VACUUM SWITCH
#1
502590
VACUUM SWITCH
#3
502592
ASSY, VAC TUBE
MANIFOLD 502588
VACUUM SWITCH
#2
502591
ref Ansul®
77284
ref Ansul®
77284
SWITCH, POWER
8528-40
SWITCH, FILTER
INTERLOCK
500407 (2 pl)
BUZZER, 240V
64834
LIGHT, INDICATOR
GREEN 240V 55697
LIGHT, INDICATOR
AMBER 240V 50516 (3 pl)
OD
P
LIGHT, INDICATOR
RED 240V 51157
FR
ON
TO
FH
L
D
A
IC
P
- U
R
CT
E
EL
OO
ER
HO
TERMINAL BLOCK
2P 250V 53068
JUMPER, FLAME
SENSOR 54005
SV504 SvcManual WV-4H(RW)
RELAY, 208/240V
(-RW, -RWT ONLY) 63880
HOUSING, LIGHT
SOCKET 505098
BULB, APPLIANCE
230V 100W 505100
CONTACTOR 208/240V
50A 3-PH 502789
STRAIN RELIEF
1-1/4” 504420
RELAY, BLDG
FIRE ALARM
64514
GLASS GLOBE
LIGHT BULB
COVER 505099
POWER CORD
NEMA 15-60P
22682
(incl. strain relief)
ELECTRICAL - REAR OF LOWER CABINET
ELECTRICAL - UNDER HOOD
23
EXPLODED VIEWS
HOOD ELECTRICAL & VACUUM COMPONENTS
COOKTOP
HF
50293
COMPLETE
ASSEMBLY
SCREW 8-32 x 3/8
(pk 100)
53977
BRACKET, HOLD-DOWN
SOLID ELEMENT 501451
NUT, 8-32 KEPS
Ni 51053 (pk 100)
HS
FAN, COOLING
FT
503655
INFINITE SWITCH
240V A CAM 50562
SV504 SvcManual WV-4H(RW)
LIGHT, SIGNAL
AMBER 50516
IN
KNOB, HOTPLATE
FRONT
50583
KNOB, HOTPLATE
REAR
50584
0
CA
SE
FIR OF
E
SU
L
PU
HA LL
ND
LE
OFF
5
6
8
H
I
H
I
3
3
7
FRONT
2
2
7
LO
LO
REAR
8
AN
0
OFF
4
4
5
6
EXPLODED VIEWS
HEATING ELEMENT,
SOLID 240V 2000W
503973
ASSEMBLY, REMOTE PULL
STATION
501389
24
EXPLODED VIEWS
DRAWER WARMER
20624
(optional)
21488
55487 (pk 50)
part of 50471
18-302
55565
55530 (pk 10)
67096
heavy-duty
drawer assy
complete
55487
(pk 50)
69251
50483 (pk 6)
CLO
SED
OPE
N
51796
64475 OPTIONAL
THERMOMETER
52112
50471 (includes
strike and catch)
18-302 (typ.)
55677
55683
50482 (240V)
50519 (120V)
SV504 SvcManual WV-4H(RW)
65923 (set includes left
and right)
65351 (CAVITY ASSEMBLY)
50483 (pk 6)
63271
(pk 10)
51801(UPPER)
53565 (LOWER)
51808
55687
0
OFF
H
-RWT ELECTRONIC CONTROL
OPTION (PART NO. PENDING)
50372
58936
7
3
WELLS
8
2
LO
I
6
25
5
4
WIRING SCHEMATIC
HOOD SECTION
G L1
L2 L3
CAC-1
CAC-2
CAC-3
WIRING
SERVICE REQUIRED
INDICATOR
PS1-1
FS1(NC)
VS4
CHECK FILTER
INDICATOR
SW1
ATS1
VS1
SW2
PS1-2
COIL
TB1
JUMPER
COOKING APPLIANCE CONTACTOR
BLOWER MOTOR
POWER ON INDICATOR
VS3
REPLACE PREFILTER INDICATOR
VS2
REPLACE FILTER PACK INDICATOR
NC
NC
COIL
DRAWER WARMER RELAY
FS1(NO)
ZZZ
ANSUL® SYSTEM BUZZER
TO BLDG
FIRE ALARM
SYSTEM
COIL
FIRE ALARM RELAY
TO HOTPLATE COOKTOP
WV-4H(RW) HOOD SECTION
WIRING SCHEMATIC
LEGEND
ATS1 = AMBIENT TEMPERATURE SWITCH
CAC = COOKING APPLIANCE CONTACTOR
FS1 = ANSUL® FIRE ALARM SWITCH
PS1 = POWER SWITCH
SW1 = FILTER PACK POSITION SWITCH
SW2 = GREASE BAFFLE POSITION SWITCH
VS1 = PRE-FILTER POSITION VAC SWITCH
VS2 = REPLACE FILTER PACK VAC SWITCH
VS3 = REPLACE PRE-FILTER VAC SWITCH
VS4 = AIRFLOW MONITOR VAC SWITCH
26
SV504 SvcManual WV-4H(RW)
TO DRAWER WARMER
WIRING DIAGRAM
HOOD SECTION
VENTILATOR
POWER SWITCH
SERVICE
REPLACE
REPLACE
PREFILTER FILTER PACK REQUIRED
INDICATOR INDICATOR INDICATOR
CHECK
FILTER
INDICATOR
POWER ON
INDICATOR
16
EXTERNAL
CONTROL
TERMINAL
BLOCK 1
EXTERNAL
SHUTDOWN
CONTROL
13
JUMPER
2
3
21
22
6
10
14
15
BLACK
WHITE
HOOD
LIGHT
7
12
9
VACUUM SWITCH
VS4 (AIRFLOW)
POWER
CORD
4
35
24
RED
ANSUL® SYSTEM
BLOWER
MOTOR
GREASE BAFFLE
POSITION SW
3
2
BLACK
19
C
NO
T1
T2
T3
C
4
17
NO
18
NO
COOKING
APPLIANCE
CONTACTOR
5
208/240VAC
75 AMPS
37
VACUUM SWITCH FILTER PACK
VS1 (PREFILTER) POSITION SW
25
L3
GROUND
5
2
NC
23
L2
C
6
1
FIRE SWITCH
L1
36
NO
DRAWER
WARMER
RELAY
34
5
4
3
NO
COOKING
APPLIANCE
26
3
5
C
27
2
1
VACUUM SWITCH
VS3 (PREFILTER)
32
4
31
NO
NO
DISCHARGE BUILDING
ALARM
BUZZER
RELAY
1. REMOVE JUMPER WHEN USING
EXTERNAL CONTROL.
IMPORTANT:
DO NOT CONNECT ANY POWER TO
EXTERNAL CONTROL TERMINAL BLOCK!
2. FIRE SWITCH SHOWN WITH
ANSUL® SYSTEM CHARGED
AND COCKED
33
DRAWER
WARMER
8
11
BUILDING
ALARM
SYSTEM
NOTES
SV504 SvcManual WV-4H(RW)
AMBIENT
TEMP SW
VACUUM SWITCH
VS2 (FILTER PACK)
MODEL
WV- 4HF
WV-4HFRW
WV-4HFRWT
VOLTS
60Hz
L2
L3
1ø
AMPS
WATTS
208V
16
15
26
30
6,300
240V
18
17
30
35
8,300
208V
19
15
30
34
7,000
240V
27
22
43
48
11,600
208V
20
19
34
39
8,100
240V
23
22
39
45
10,700
208V
19
15
30
34
7,000
240V
22
17
34
38
9,200
WV-4HS
WV-4HSRW
WV-4HSRWT
3ø AMPS
L1
from p/n 302802 issue J
27
WIRING
1
WIRING SCHEMATIC
HOTPLATE COOKTOP SECTION
FROM COOKING APPLIANCE CONTACTOR
TO VS 4
L1 L2 L3
G
WIRING
ATS-1
INF SW 1-1
INF SW 1-2
HEATING ELEMENT (LEFT FRONT)
HEATING INDICATOR
INF SW 2-1
INF SW 2-2
HEATING ELEMENT (LEFT REAR)
HEATING INDICATOR
INF SW 3-2
INF SW 3-1
HEATING ELEMENT (RIGHT REAR)
HEATING INDICATOR
INF SW 4-1
INF SW 4-2
HEATING INDICATOR
COOLING FAN
28
WV-4H(RW) WIRING SCHEMATIC
HOTPLATE COOKTOP SECTION
LEGEND
ATS-1 = AMBIENT TEMPERATURE SWITCH
CAC = COOKING APPLIANCE CONTACTOR
VS-4 = AIRFLOW MONITOR VAC SWITCH
SV504 SvcManual WV-4H(RW)
HEATING ELEMENT (RIGHT FRONT)
WIRING DIAGRAM
HOTPLATE COOKTOP SECTION
RIGHT REAR
HEATING ELEMENT
WIRING
LEFT REAR
HEATING ELEMENT
LEFT FRONT
HEATING ELEMENT
2
RIGHT FRONT
HEATING ELEMENT
2
2
28
2
TO AIRFLOW
VAC SW. 4
29
AMBIENT
TEMP SW
L1
3
L2
4
1
HEATING
INDICATOR
1
HEATING
INDICATOR
1
HEATING
INDICATOR
5
HEATING
INDICATOR
5
1
GROUND
9
9
8
SV504 SvcManual WV-4H(RW)
COOLING
FAN
8
11
7
8
3
6
11
8
10
5
4
5
6
P L1 L2
P L1 L2
P L1 L2
P L1 L2
H1
H1
H1
H1
1
H2
LEFT FRONT
TEMPERATURE
CONTROL
INF. SWITCH
2
H2
LEFT REAR
TEMPERATURE
CONTROL
INF. SWITCH
3
H2
RIGHT REAR
TEMPERATURE
CONTROL
INF. SWITCH
29
4
H2
RIGHT FRONT
TEMPERATURE
CONTROL
INF. SWITCH
L3
FROM
COOKING
APPLIANCE
CONTACTOR
WIRING SCHEMATIC
DRAWER WARMER SECTION (RW-STYLE)
L1 L3
T3
T
WIRING
T4
T
DRAWER WARMER ELEMENT (UPPER)
HEATING INDICATOR
DRAWER WARMER ELEMENT (LOWER)
HEATING INDICATOR
WV-4HRW DRAWER WARMER SECTION
WIRING SCHEMATIC
LEGEND
T3, T4 = DRAWER WARMER THERMOSTAT
DRAWER WARMER SECTION (RWT-STYLE)
L1 L3
E1
E2
DRAWER WARMER ELEMENT (LOWER)
E
CONTROLLER
WV-4HRWT DRAWER WARMER SECTION
WIRING SCHEMATIC
LEGEND
E1, E2 = DRAWER WARMER TEMPERATURE
CONTROLLER N.O. CONTACTS
30
SV504 SvcManual WV-4H(RW)
DRAWER WARMER ELEMENT (UPPER)
E
CONTROLLER
WIRING DIAGRAM
DRAWER WARMER SECTION (RW-STYLE)
1
INDICATOR
LIGHT
T
7
WIRE
NUT
LOWER
HEATING
ELEMENT
240VAC
900WATTS
8
8
2
3
4
T
THERMOSTAT
7
WIRE
NUT
WIRE
NUT
32
31
33
THERMOSTAT
FROM
DRAWER
WARMER
RELAY
WIRING
WIRE
NUT
UPPER
HEATING
ELEMENT
240VAC
900WATTS
WIRING DIAGRAM RW-26
from p/n 300959 issue A
INDICATOR
LIGHT
SV504 SvcManual WV-4H(RW)
DRAWER WARMER SECTION (RWT-STYLE)
UPPER
HEATING
ELEMENT
240VAC
900WATTS
UPPER
HEATING
ELEMENT
240VAC
900WATTS
4
4
7
TEMP
PROBE
7
CONTROLLER
1
6
2
7
TEMP
PROBE
CONTROLLER
WIRING DIAGRAM RWT-26
from p/n 307532 issue (-)
6
1
2
7
8
3
8
4
9
4
9
5
10
5
10
5
3
E
5
E
CONNECTOR CONNECTOR
6
32
9
6
CONNECTOR
31
3
3
CONNECTOR
31
8
33
FROM
DRAWER
WARMER
RELAY
MSDS - ANSULEX™ Low pH FIRE SUPPRESSION MEDIA
DOCUMENTATION
SV504 SvcManual WV-4H(RW)
32
SV504 SvcManual WV-4H(RW)
DOCUMENTATION
MSDS - ANSULEX™ Low pH FIRE SUPPRESSION MEDIA
33
WELLS BLOOMFIELD, LLC
DOCUMENTATION
SV504 SvcManual WV-4H(RW)
34
35
Max interval: 12 months
Replace fire damper fusible link:
rated @ 280ºF
Replace two (2) fire suppression
links located in plenum:
each link is rated @ 212ºF
SV504 SvcManual WV-4H(RW)
DOCUMENTATION
WELLS BLOOMFIELD, LLC
IMPORTANT: WELLS BLOOMFIELD, LLC PROPRIETARY INFORMATION.
DISSEMINATION OF THIS INFORMATION TO ANYONE OTHER THAN
WELLS AUTHORIZED SERVICE AGENTS IS STRICTLY PROHIBITED.
TECHNICAL CONTENT OF THIS MANUAL IS DESIGNED FOR
USE BY QUALIFIED PROFESSIONAL TECHNICIANS ONLY.
Wells Bloomfield proudly supports CFESA
Commercial Food Equipment Service Association
WELLS BLOOMFIELD, LLC
2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439
telephone: 775-689-5707
fax: 775-689-5976
www.wellsbloomfield.com
PRINTED IN UNITED STATES OF AMERICA