WELLS BLOOMFIELD, LLC
10 Sunnen Dr., St. Louis, MO 63143
telephone: 314-678-6314
fax: 314-781-2714
www.wells-mfg.com
011C
OWNERS MANUAL
BUILT-IN
FOUR-WELL
MODULAR
WARMERS
with
THERMOSTAT
CONTROL
MOD-427TDM
IMPORTANT: DO NOT DISCARD THIS MANUAL
This manual is considered to be part of the appliance and is to be given to the OWNER or
MANAGER of the restaurant, or to the person responsible for TRAINING OPERATORS of
this appliance. Additional manuals are available from your WELLS DEALER.
MODELS
MOD-400T, TD, TDM
MOD-427TDM
Includes
INSTALLATION
USE & CARE
EXPLODED VIEW
PARTS LIST
WIRING DIAGRAM
THIS MANUAL MUST BE READ AND UNDERSTOOD BY ALL PERSONS USING OR
INSTALLING THIS APPLIANCE. Contact your WELLS DEALER if you have any
questions concerning installation, operation or maintenance of this equipment.
p/n 2M-308020 Rev. (B) M011C.04 110624
LIMITED WARRANTY STATEMENT
Unless otherwise specied, all commercial cooking
equipment manufactured by WELLS BLOOMFIELD, LLC is
warranted against defects in materials and workmanship
for a period of one year from the date of original installation
or 18 months from the date of shipment from our factory,
whichever comes rst, and is for the benet of the original
purchaser only.
THIS WARRANTY IS THE COMPLETE AND ONLY
WARRANTY, EXPRESSED OR IMPLIED IN LAW
OR IN FACT, INCLUDING BUT NOT LIMITED TO,
WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE, AND/OR FOR
DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH WELLS BLOOMFIELD PRODUCTS.
This warranty is void if it is determined that, upon inspection
by an authorized service agency, the equipment has been
modied, misused, misapplied, improperly installed, or
damaged in transit or by re, ood or act of God. It also
does not apply if the serial nameplate has been removed,
or if service is performed by unauthorized personnel.
The prices charged by Wells Bloomeld for its products
are based upon the limitations in this warranty. Seller’s
obligation under this warranty is limited to the repair of
defects without charge by a Wells Bloomeld factory
authorized service agency or one of its sub-service
agencies. This service will be provided on customer’s
premises for non-portable models. Portable models (a
device with a cord and plug) must be taken or shipped
to the closest authorized service agency, transportation
charges prepaid, for service. In addition to restrictions
contained in this warranty, specic limitations are shown in
the Service Policy and Procedure Guide. Wells Bloomeld
authorized service agencies are located in principal cities.
This warranty is valid in the United States and Canada and
void elsewhere. Please consult your classied telephone
directory, your foodservice equipment dealer or contact:
Wells Bloomeld, LLC
10 Sunnen Dr., St. Louis MO 63143 USA
phone (314) 678-6314 or fax (314) 781-2714
for information and other details concerning warranty.
SERVICE POLICY AND PROCEDURE GUIDE and ADDITIONAL WARRANTY EXCLUSIONS
1. Resetting of safety thermostats, circuit breakers, over
load protectors, and/or fuse replacements are not
covered by this warranty unless warranted conditions
are the cause.
2. All problems due to operation at voltages or phase
other than specied on equipment nameplates are not
covered by this warranty.
Conversion to correct voltage and/or phase must be
the customer’s responsibility.
3. All problems due to electrical connections not made
in accordance with electrical code requirements and
wiring diagrams supplied with the equipment are not
covered by this warranty.
4. Replacement of items subject to normal wear, to
include such items as knobs, light bulbs; and, normal
maintenance functions including adjustments of
thermostats, adjustment of micro switches and
replacement of fuses and indicating lights are not
covered by warranty.
5. Damage to electrical cords and/or plug due to exposure
to excessive heat are not covered by this warranty.
6. Full use, care, and maintenance instructions supplied
with each machine. Noted maintenance and
preventative maintenance items, such as servicing and
cleaning schedules, are customer responsibility. Those
miscellaneous adjustments noted are customer
responsibility. Proper attention to preventative
maintenance and scheduled maintenance procedures
will prolong the life of the appliance.
7. Travel mileage is limited to sixty (60) miles from an
Authorized Service Agency or one of its sub-service
agencies.
8. All labor shall be performed during regular working
hours. Overtime premium will be charged to the buyer.
9. All genuine Wells replacement parts are warranted
for ninety (90) days from date of purchase on non-
warranty equipment. This parts warranty is limited only
to replacement of the defective part(s). Any use of
non-genuine Wells parts completely voids any
warranty.
10. Installation, labor, and job check-outs are not
considered warranty and are thus not covered by this
warranty.
11. Charges incurred by delays, waiting time or operating
restrictions that hinder the service technician’s ability
to perform service are not covered by warranty. This
includes institutional and correctional facilities.
SHIPPING DAMAGE CLAIM PROCEDURE
NOTE: For your protection, please note that equipment
in this shipment was carefully inspected and packaged
by skilled personnel before leaving the factory. Upon
acceptance of this shipment, the transportation company
assumes full responsibility for its safe delivery.
IF SHIPMENT ARRIVES DAMAGED:
1. VISIBLE LOSS OR DAMAGE: Be certain that any
visible loss or damage is noted on the freight bill or
express receipt, and that the note of loss or damage is
signed by the delivery person.
2. FILE CLAIM FOR DAMAGE IMMEDIATELY:
Regardless of the extent of the damage.
3. CONCEALED LOSS OR DAMAGE: if damage is
unnoticed until the merchandise is unpacked, notify the
transportation company or carrier immediately, and le
“CONCEALED DAMAGE” claim with them. This
should be done within fteen (15) days from the date
the delivery was made to you. Be sure to retain the
container for inspection.
Wells Bloomeld cannot assume liability for damage or loss
incurred in transit. We will, however, at your request, supply
you with the necessary documents to support your claim.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
xi
TABLE OF CONTENTS
WARRANTY xi
FEATURES & OPERATING CONTROLS 2
PRECAUTIONS & GENERAL INFORMATION 3
AGENCY LISTING INFORMATION 3
INSTALLATION 4
OPERATION 6
MAINTENANCE INSTRUCTIONS 7
CLEANING INSTRUCTIONS 8
TROUBLESHOOTING SUGGESTIONS 10
WIRING DIAGRAM 11
EXPLODED VIEW & PARTS LIST 12 - 15
PARTS & SERVICE 16
CUSTOMER SERVICE DATA 17
INTRODUCTION
Thank You for purchasing this Wells Bloomeld appliance.
Proper installation, professional operation and consistent maintenance of this appliance will ensure that it
gives you the very best performance and a long, economical service life.
This manual contains the information needed to properly install this appliance, and to use and care for the
appliance in a manner which will ensure its optimum performance.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
SPECIFICATIONS
MOD-400T
MOD-400TD
MOD-400TDM 240 VAC 6600W 17.8A 17.8A 11.3A 0.0A 27.5A
MOD-427TDM
MODEL VOLTS WATTS
208 VAC 4960W 14.5A 14.5A 9.8A 0.0A 23.8A
208 VAC 4960W 14.5A 14.5A 9.8A 0.0A 23.8A
240 VAC 6600W 17.8A 17.8A 11.3A 0.0A 27.5A
AMPS 3ø
L1 L2 L3 N
AMPS1ø
1
FEATURES & OPERATING CONTROLS
A. THERMOSTAT
1. On THERMOSTATICALLY CONTROLLED warmers, power is
applied to the heating element according to the control knob
position and the actual temperature at the temperature sensing
thermobulb.
2. The desired temperature is controlled by rotating the
TEMPERATURE CONTROL kNOB. The knob has a numeric
scale, where higher numbers correspond to higher temperature.
3. On warmers equipped with an INDICATOR LIGHT, the light will
glow when the thermostat is calling for heat (i.e. the element is
energized).
4. The TEMPERATURE CONTROL kNOB will rotate
approximately 300º, and will reach a “stop” at both ends.
The OFF position is marked.
NOTE: The dial position is an indication of the temperature
setting. Actual temperature will vary depending upon the type of
product and food consistency.
B. MOUNTING
1. MOD-series built-in warmers may are equipped with
2. wellsloks, uniquely designed turnout tabs which help
secure the warmer top ange to the countertop.
3. See the Installation Instructions, supplied with the particular
appliance, for details.
C. DRAINS
1. Sufx “D” units (e.g. MOD-400TD) have drains for each pan,
with each pan having an individual drain valve.
2. Sufx “DM” units (e.g. MOD-400TDM) have the individual drain
lines manifolded together, with a single drain valve for the entire
manifold.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
2
PRECAUTIONS AND GENERAL INFORMATION
This appliance is intended for use in commercial establishments only.
This appliance is intended to hold pre-heated 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.
This appliance is not jet stream approved. Do not direct water jet
or steam jet at this appliance, or at any control panel or wiring. Do
not splash or pour water on, in or over any controls, control panel or
wiring.
Exposed surfaces of this appliance can be hot to the touch and may
cause burns.
Do not operate this appliance if the control panel is damaged. Call
your Authorized Wells Service Agent for service.
The technical content of this manual, including any wiring diagrams,
schematics, parts breakdown illustrations and/or adjustment
procedures, is intended for use by qualied technical personnel.
Any procedure which requires the use of tools must be performed by a
qualied technician.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
This manual is considered to be a permanent part of the appliance.
This manual and all supplied instructions, diagrams, schematics, parts
breakdown illustrations, notices and labels must remain with the
appliance if it is sold or moved to another location.
This appliance is made in the USA. Unless otherwise noted, this
appliance has American sizes on all hardware.
WARNING:
SHOCk HAzARD
All servicing requiring
access to non-insulated
electrical components must
be performed by a factory
authorized technician.
DO NOT open any access
panel which requires the use
of tools. Failure to follow this
warning can result in severe
electrical shock.
CAUTION:
RISk OF
DAMAGE
DO NOT connect or energize
this appliance until all
installation instructions are
read and followed. Damage
to the appliance may result
if these instructions are not
followed.
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
AGENCY LISTING INFORMATION
Refer to the product nameplate for the specic appliance for agency
listings. In general:
This appliance conforms to NSF Standard 4 for sanitation only if
installed in accordance with the supplied Installation Instructions.
UL Listed warmers are U Listed under UL File E6070.
3
STD 4
E6070
UL Listed Warmers
INSTALLATION
NOTE: DO NOT discard
the carton or other packing
materials until you have
inspected the appliance for
hidden damage and tested it
for proper operation.
Refer to SHIPPING DAMAGE
CLAIM PROCEDURE on the
inside front cover of this
manual.
WARNING:
RISk OF INjURY
Installation procedures must
be performed by a qualied
technician with full knowledge
of all applicable electrical and
plumbing codes. Failure can
result in personal injury and
property damage.
CAUTION
FIRE HAzARD
Avoid storing ammable or
combustible materials in, on or
near the appliance.
IMPORTANT: For warmers
installed in plastic counter
tops, the counter material
must be protected from the
heat of the warmer in order to
prevent discoloration and/or
deterioration. Wellsloks are
not suitable for this purpose.
The installer should contact
the manufacturer or distributor
of the countertop material for
specic instructions.
UNPACkING & INSPECTION
Carefully remove the appliance from the carton. Remove all protective
plastic lm, packing materials and accessories from the Appliance
before connecting electrical power or otherwise performing any
installation procedure.
Carefully read all instructions in this manual and the Installation
Instruction Sheet packed with the appliance before starting any
installation.
Read and understand all labels and diagrams attached to the
appliance.
Carefully account for all components and accessories before discarding
packing materials. Store all accessories in a convenient place for later
use.
INSTALLATION NOTES
1. Installation and start up of built-in warmers MUST be performed
by an authorized installation company.
2. It is the RESPONSIBILITY OF THE INSTALLER to verify that
this warmer installation is in compliance with the specications
listed in this manual and on the specication sheet provided.
3. It is the RESPONSIBILITY OF THE INSTALLER to check with
the AUTHORITY HAVING jURISDICTION, in order to verify
that this warmer installation is in compliance with local code
requirements.
4. Water supply and drain installation must meet all applicable
local, state and federal plumbing codes and ordinances.
5. Refer to Installation Instructions included with the warmer for
Underwriters Laboratories conditions of acceptability, electrical
requirements and other installation concerns.
BUILT-IN WARMERS
1. This is a GENERAL GUIDE. For specic cutout dimensions
and other installation details, refer to the Installation
Instructions supplied with the warmer.
2. Cutout dimensions for warmer units and control panels are
listed on the Installation Instructions provided with the warmer.
NOTE: Verify the dimensions are correct for the installation before
making the cutout.
IMPORTANT: Wellslok
Extension kits must be used
ONLY with UL Listed warmers
approved for installation in
wood counter tops. Refer to
the Installation Instructions
provided with the warmer.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
4
INSTALLATION
3. For “top-mounted” warmers (i.e. warmers mounted from above
the counter top):
a. Verify that provided sealants are applied to the underside of the
warmer top ange prior to setting the unit into the cutout.
b. After installation, verify that the tabs on the Wellsloks are
turned out to lock the warmer into the counter
c. Apply a thin bead of food-grade silicone sealant around the
ange to seal it to the counter.
d. Wellslok extension kits are available for installing warmers in
counter tops where the standard Wellslok would not normally
reach. The extension kit will adapt to counter tops up to 1¾”
thick.
D. ELECTRICAL INSTALLATION
1. Refer to the product nameplate. Verify the electrical service
power. Voltage and phase must match the nameplate
specications. Wiring the warmer to the wrong voltage can
severely damage the unit or cause noticeably decreased
performance.
2. Available electrical service amperage must meet or exceed the
specications listed on the specication sheet provided with the
warmer.
3. Warmer and control unit must be connected to an appropriate
building ground. Ground connection will be marked “GND” or
” “ .
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
NOTE: Wire gauge, insulation type and temperature rating, as well as
type, size and construction of conduit, must meet or exceed applicable
specications of local codes and of the National Electrical Code.
E. PLUMBING INSTALLATION
For use in the State of Massachusetts, this appliance must be
installed in compliance with Massachusetts Fuel Gas and
Plumbing Code CMR 248.
1. IMPORTANT: All plumbing installations must be performed by a
qualied plumber.
2. For units equipped with a DRAIN LINE: Some jurisdictions may
require an approved air gap or other back-ow prevention device
in the drain. It is the responsibility of the plumber to determine
such requirement, to provide and properly install the required
device.
NOTE: Damage caused
by leaks due to improper
installation is NOT covered by
warranty.
CAUTION:
SHOCk HAzARD
The ground lug of this
appliance must be connected
to a suitable building ground.
IMPORTANT:
Contact a licensed electrician
to install and connect electrical
power to the appliance.
IMPORTANT:
Damage due to being
connected to the wrong
voltage or phase is NOT
covered by warranty.
IMPORTANT: Electrical
installation other than as
specied on the specication
sheet will void the UL listing,
and may void the warranty.
NOTE: Plumb connections
must be made in compliance
with all Federal, State and
Local Plumbing Codes and
Ordinances.
5
OPERATION
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
CAUTION:
SHOCk HAzARD
DO NOT splash or pour water
onto control panel or wiring.
Always use an inset.
DO NOT place food directly
into the warmer.
Always pour hot water into the
warmer before it is preheated.
DO NOT pour water into a
dry, heated warmer. This may
damage the unit.
DO NOT put ice into a
warmer pan. This will cause
condensation on the inside of
the warmer. Damage caused
by condensation is NOT
covered by warranty.
Stir thick food items frequently
to keep food heated uniformly.
keep insets covered to
maintain food quality and
temperature.
WET OR DRY OPERATION for WARMERS
1. Carefully read the description of the warmer operation on the
specication sheet.
2. a. Most warmers are designed for WET OR DRY operation.
b. Warmers may be used wet, or may be used dry. However warmers
may NOT be used wet-to-dry or dry-to-wet unless they have been
allowed to cool to room temperature between the change in wet or
dry operation.
c. Wells Manufacturing recommends operating WET for consistent
food heating.
d. If your wet-operation warmer is allowed to run dry, turn it OFF and
allow to cool to room temperature before adding water.
3. If the warmer is to be used for WET operation, add approximately 1” of
hot tap water before turning the warmer on. Use of hot water will allow
a faster preheat.
a. Check the water level frequently and add hot water as necessary
to prevent the warmer from running dry. Do not add water to the
warmer if it has run dry.
b. If your wet-operation warmer is allowed to run dry, turn it OFF and
allow to cool to room temperature before adding water.
4. Damage caused by allowing a wet-operation warmer to run dry,
is NOT covered by warranty.
Damage caused by adding water to a dry warmer when hot is NOT
covered by warranty.
PRE-HEATING THE WARMER
1. Place desired pan(s) or inset(s) with appropriate adapter top on
warmer.
a. Insets are available as accessories in 2½ qt., 4qt., 7 qt., and 11 qt.
sizes with lids and adapter tops.
b. For dry operation, a 6” deep pan or inset is recommended.
2. Turn temperature control to HI or highest temperature setting.
3. Allow warmer to preheat for approximately 30 minutes, then set the
control for the desired temperature. Be sure to keep the warmer
covered during preheat and operation.
OPERATION
1. Always use an inset. DO NOT place food directly into the warmer.
2. Check water level in wet-operation warmer frequently during use.
Running warmers dry will lower the temperature of the food in the insert
pan, and may damage the warmer.
3. Alternating between wet and dry operation in any individual warmer is
not recommended.
4. DO NOT use metal tools, steel wool, or caustic or abrasive cleanser to
clean warmer pan.
WARMERS WITH MANIFOLDED DRAIN
1. Manifolded warmers have a single drain valve.
2. Water poured into any one section will seek the same water
level with all sections on the manifold.
3. Make sure the drain valve is fully closed before lling warmer.
6
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
MAINTENANCE INSTRUCTIONS
CARE OF STAINLESS STEEL
Stainless steel is a marvelous material: strong, lustrous and low maintenance. With
a minimum of care, it will normally retain its beauty and durability for the life of the
equipment. In some applications, however, special care is required in order to maintain
stainless steel’s special properties.
External components, such as cabinets and control panels, are nished with a grain
pattern. This pleasing nish is best maintained by cleaning with a non-abrasive
cleanser applied with a soft cloth. Rub only in the direction of the grain. In the absence
of visible grain, rub only along the longest axis of the appliance.
Restore stainless steel’s luster by applying a polish specically made for stainless steel.
Spray on, wipe off with a soft cloth, rubbing in the direction of the grain.
Never use metal implements, wire brushes, abrasive scratch pads or steel wool
to clean stainless steel.
Warmer pans, insets and other vessels are subject to a harsher environment. Wells
Manufacturing uses an very high quality stainless steel (#304DDQ) for our food warmer
pans. Even the highest quality stainless steel, however, is mostly iron, and will rust, pit
and corrode under the following conditions:
Poor Water Quality: Hard water (water with a high content of dissolved miner-
•
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
als) will leave mineral deposits when allowed to dry. Calcium (lime) can buildup on
heated surfaces, even under water. If left unattended, hard water spots and lime
buildup can lead to rusting, corrosion and pitting.
Contact with Chlorides: Chlorides (specic compounds of chlorine) are found in
•
food, table salt and many cleansers. Chlorides can attack the surface of stainless
steel, resulting in corrosion and pitting.
keep your stainless steel warmers clean and free from calcium buildup.
Use alkaline, alkaline chlorinated or non-chloride cleanser.
Use citric acid-based cleaners to remove calcium deposits.
For additional information, please read the NAFEM Stainless Steel Equipment and
Cleaning Guide. Contact NAFEM at :
North American Association of Food Equipment Manufacturers
401 N. Michigan Avenue
Chicago, Illinois 60611-4267
(312) 644-6610
7
CLEANING INSTRUCTIONS
CAUTION:
SHOCk HAzARD
Do NOT splash or pour water
into or over any control panel
or wiring.
CAUTION:
SHOCk HAzARD
Disconnect warmer from
electric power before cleaning
CAUTION:
BURN HAzARD
Allow warmer to cool
completely before cleaning.
DAILY CLEANING INSTRUCTIONS
PREPARATIONS: Turn control knob(s) to OFF. Allow warmer to cool
before proceeding.
Remove any insets, pans and/or adapter tops.
Drain or remove water from well if used for
wet operation.
FREQUENCY: Minimum - daily.
TOOLS: Mild Detergent
Solution: 10 Parts Warm Water to 4 Parts Vinegar
Plastic Scouring Pad
Clean Cloth or Sponge
Food-Grade Silicone Sealant
1. Wipe entire unit down using a clean cloth or sponge and mild
detergent.
2. Use a plastic scouring pad to remove any hardened food particles
or mineral deposits. IMPORTANT: Do NOT use steel wool for
cleaning.
3. Rinse warmer thoroughly with a vinegar and water solution to
neutralize all detergent cleanser residue.
4. Inspect warmer ange-to-counter seal. Reseal with food-grade
silicone sealant if necessary. Failure to do so may allow grease and
water to leak into insulation and heating element, causing a potential
re and/or electric shock hazard.
5. Inspect warmer tank for damage. Damage to the outer body may
allow grease and water to leak into insulation and heating element,
causing a potential re and/or electric shock hazard. Contact your
Authorized Wells Service Agency to inspect warmer if water or grease
contamination is suspected.
6. Close drain valve. Add proper amount of warm water. Turn control
knob(s) ON and check for proper operation.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
8
CLEANING INSTRUCTIONS
WEEkLY CLEANING INSTRUCTIONS
PREPARATIONS: Remove any insets, pans and/or adapter
tops.
Drain or remove water from well if used for
wet operation.
FREQUENCY: Weekly, or whenever lime or scale is seen
accumulating on the sides of the warmer
pans.
TOOLS: Commercial Delime Cleaner
Plastic Scouring Pad
Clean Cloth or Sponge
1. Add water to pans until water is at normal operating level
(1” - 1 1/2” deep) or covers accumulated scale.
2. Heat water to maximum temperature (190ºF or higher).
3. Pour contents of one package of commercial delime cleaner
into each warmer pan. Stir to dissolve cleaner. Turn heat
control OFF. Cover pans.
4. Allow solution to soak at least one hour, or overnight for heavy
scale buildup.
5. Drain hot water from pans. Scrub with a plastic scouring pad.
Rinse thoroughly with hot water, then dry.
6. Rell pans with hot tap water and resume operation.
7. Heavy scale buildup may require additional treatments.
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
CAUTION:
CHEMICAL BURN
HAzARD
Deilimng chemicals may be
caustic. Wear appropriate
personal protective equipment.
Follow cleaner manufacturer’s
instructions for safest use.
9
TROUBLESHOOTING SUGGESTIONS
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE SUGGESTED REMEDY
No power to warmer Circuit breaker off or tripped Reset circuit breaker
Warmer will not heat Temperature control not set Set control to desired temperature
Verify ange-to counter seal is sound, or
reseal with food-grade silicone sealant
Contact your Authorized Wells Service
Agency for repairs
Contact your Authorized Wells Service
Agency for repairs
Clean pan(s) with delime cleaner
Verify supply voltage - must match voltage
on warmer nameplate
Contact your Authorized Wells Service
Agency for repairs
Warmer trips circuit breaker
Warmer slow to heat
Drain-equipped unit will not hold
water
Wet insulation
Pan leaking or other internal
damage
Internal damage
Mineral deposits on pan acting as
a insulator
Wired to wrong voltage
Drain valve not fully closed Check drain valve for debris and close fully
Drain valve damaged or pan(s)
leaking
There are no user-serviceable components in this appliance. In all instances of damage or malfunction, contact your
Authorized Wells Service Agency for repairs.
10
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
WIRING DIAGRAM
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
11
Model: MOD400T, MOD400TD, MOD400TDM
Built-in Fabricated Warmer
PL011C
IL1829 Rev. A 7/120/09
MOD-400T
MOD-400TD
MOD-400TD
1
6
7
8
9
10
2
2
1
11
3
3
1
4
4
5
14
12
13
15
16
17
18
19
20
21
THERMOBULB
(ref.)
EXPLODED VIEW
MOD400T, MOD400TD, MOD400TDM
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
12
PARTS LIST
MOD400T, MOD400TD, MOD400TDM
Fig No Part No Description Application
1 P2-31869 SCREEN DRAIN WARMERS
2 WS-55741 PAN W/O DRAIN MOD200-500
3 WS-53201 PAN W/DRAIN 200-50/TD
4 WS-55742 PAN W/DRAIN 1 T 200-500D M/TDM
5 2V-35609 VALVE 1” GRATE BRONZE
6 WS-503843 KIT PAN ELEM W/ELEMENT 208/240V
7 2N-303375UL ELEM HEATING 240V 1650W
8 WS-503842 KIT ELEM PAN W/O ELEM
9 D8-303352 BRKT THERMO BULB
10 2H-36196 INSUL FG .6 MICR 1X45 (sold by foot)
11 2H-36050 INSUL FG .6 MICRO 1X36 (sold by foot)
12 P2-35004 COVER BOTTOM 200 SERIES
13 P2-48290 BOX OUTLET MOD400 DM TDM
14 2K-31040 BUSHING HEYCO 7/8 OD
15 WS-50131 TERM BLK KIT -3 POLE .85AMP
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
16 2C-41974 NUT 8-32 HEX 7/8 LONG ALU
17 P2-48285 BRKT THERMO MOD400 600 DM
18 2J-35687 LIGHT SIGNAL GLO DOT W#8
19 2R-40498 KNOB ASSY MOD
20 P2-Z12591 PANEL, CONTROL MOD 400
21
BUILT-IN FABRICATED WARMER
Models: MOD400T, MOD400TD, MOD400TDM
2T-38968 THERMO K TYPE SS206ET R
2T-46551 THERMO CNTRL 96IN CAP MOD400TDM6
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EXPLODED VIEW
Model: MOD427TDM
Built-in Fabricated Warmer
PL011C
IL1830 Rev. A 7/20/09
MOD427TDM
THERMOBULB
(ref.)
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MOD427TDM
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
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PARTS LIST
MOD427TDM
M011C.04 2M-308020 Owners Manual for Built-In Four-Well Modular T’Stat Warmers
BUILT-IN FABRICATED WARMER
Model: MOD427TDM
Fig No Part No Description Application
1 P2-31869 SCREEN DRAIN WARMERS
2 WS-500700 PAN ASSY MOD TDM 12X27
3 2V-35609 VALVE 1” GATE BRONZE
4 P2-48290 BOX OUTLET MOD400 DM TDM
5 2K-31040 BUSHING HEYCO 7/8 OD
6 WS-50131 TERM BLK KIT-3POLE .85AMP
7 2C-41974 NUT 8-32 HEX 7/8 LONG ALU
8 P2-48285 BRKT THERMO MOD400 600 DM
9 2J-35687 LIGHT SIGNAL GLO DOT W#8
10 2R-40498 KNOB ASSY MOD
11 P2-Z12591 PANEL, CONTORL MOD 400
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13 WS-503840 KIT ELEM PAN W/ELEMENT
14 WS-503841 KIT ELEM PAN W/O ELEMENT
15 2C-30397 CLIP ELEM WARMERS SML, EACH
16 2N-300706UL ELEM 240V 1650W 12 X 27
17 D8-303352 BRKT THERMO BULB
18 P2-500712 COVER BOT MOD227/MOD427TDM
2T-38968 THERMO K TYPE SS206ET R
2T-46551 THERMO CNTRL 96IN CAP MOD427TDM6
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PARTS & SERVICE
Always use an inset.
DO NOT place food directly
into the warmer pan.
DESCRIPTION PART NO.
ADAPTERS & INSETS
ADAPTER TOP, convert 12” x 20” warmer to
hold two 7 qt. insets WS-21502
ADAPTER TOP, convert 12” x 20” warmer to
hold two 4 qt. and two 2½ qt DD-21503
ADAPTER TOP, convert 12” x 20” warmer to
hold three 4 qt. insets DD-21616
ADAPTER TOP, convert 12” x 20” warmer to
hold one 7qt. and one 4 qt. DD-21618
ADAPTER TOP, convert 12” x 20” warmer to
hold four 2½ qt. insets WS-21623
ADAPTER TOP, convert 12” x 27” SMPT-27
to hold three 7 qt. insets DD-21503
2½ QT. ROUND INSET w/ lid 5D-20773
4 QT. ROUND INSET w/ lid 5D-20774
7 QT. ROUND INSET w/ lid 5D-20587
11 QT. ROUND INSET w/ lid 5D-20908
11 QT. ROUND INSET w/ hinged lid 5D-21057
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PARTS & SERVICE
DESCRIPTION PART NO.
ACCESSORIES
WELLSLOk EXTENSION kIT, for UL LISTED
circular warmers only, adapt to wood counter
up to 1¾” thick 5P-22592*
WELLSLOk EXTENSION kIT, for UL LISTED
12” x 20” warmers only, adapt to wood counter
up to 1¾” thick 5P-22593*
* Wellslok Extension Kits for UL Listed units approved for
installation in wood counter tops
One well units require one kit / Two and three well units require
two kits / four and ve well units require three kits
DRAIN VALVE EXTENSION kIT, extension from drain
to counter front with remote handle, for use with
“D” models only, excluding “DM” models 5P-20385
DRAIN SCREEN 5P-21709
OPTIONAL 72” WIRING, thermostatically controlled warmers **
** contact factory customer service for availability
IMPORTANT: Use only factory
authorized service parts and
replacement lters.
For factory authorized service,
or to order factory authorized
replacement parts, contact
your Wells authorized service
agency, or call:
Wells Bloomeld, LLC
10 Sunnen Dr.,
St. Louis MO 63143 USA
Service Dept.
phone: (314) 678-6314
fax: (314) 781-2714
Service Parts Department
can supply you with the name
and telephone number of
the WELLS AUTHORIZED
SERVICE AGENCY nearest
you.
CUSTOMER SERVICE DATA
please have this information available if calling for service
RESTAURANT _____________________________ LOCATION _____________
INSTALLATION DATE ________________________ TECHNICIAN ___________
SERVICE COMPANY ________________________________________________
ADDRESS ___________________________ STATE ______ ZIP__________
TELEPHONE NUMBER (_____)_____-_________
EQUIPMENT MODEL NO. _______________
EQUIPMENT SERIAL NO. _______________
VOLTAGE: (check one) 120 208 240
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WELLS BLOOMFIELD, LLC
10 Sunnen Dr., St. Louis, MO 63143
telephone: 314-678-6314
fax: 314-781-2714
www.wells-mfg.com
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