Wells HT-327AF Service Manual
WELLS MANUFACTURING
265 Hobson Street, Smithville, Tennessee 37166
telephone: 314-678-6314
fax: 314-781-2714
www.wells-mfg.com
OWNER'S MANUAL
BUILT-IN
BAIN MARIE
HEATED TANKS
with AUTOFILL
MODELS
HT200AF, 227AF
021B
STYLE
Model HT-300AF
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
HT300AF, 327AF
HT400AF, 427AF
HT500AF, 527AF
Includes
INSTALLATION
USE & CARE
EXPLODED VIEW
PARTS LIST
WIRING DIAGRAM
IMPORTANT: DO NOT DISCARD THIS MANUAL
this appliance. Additional manuals are available from your WELLS DEALER.
THIS MANUAL MUST BE READ AND UNDERSTOOD BY ALL PERSONS U S ING OR
2M-308086 Rev. A
INSTALLING THIS APPLIANCE. Contact your WELLS DEALER if you have any
questions concerning installation, operation or maintenance of this equipment.
03/18
LIMITED EQUIPMENT WARRANTY
Wells Manufacturing warranties new products to be free from defects
in material and/or workmanship for a period of one [1] year from the
date of original installation, except as noted below. Defects that occur
as a result of normal use, within the time period and limitations defined
in this warranty, will at Wells’ discretion have the parts replaced or
repaired by Wells or a Wells-authorized service agency.
THIS WARRANTY IS SUBJECT TO ALL LISTED CONDITIONS.
Repairs performed under this warranty are to be performed by a Wellsauthorized service agency. Wells will not be responsible for charges
incurred or service performed by non-authorized repair agencies.
In all cases, the nearest Wells-authorized service agency must be used.
Wells will be responsible for normal labor charges incurred in the repair
or replacement of a warrantied product within 50 miles (80.5 km) of
an authorized service agency. Time and expense charges for anything
beyond that distance will be the responsibility of the owner. All labor
will need to be performed during regular service hours. Any overtime
premium will be charged to the owner. For all shipments outside the
U.S.A. and Canada, please see the International Warranty for specific
details.
It is the responsibility of the owner to inspect and report any shipping
damage claims, hidden or otherwise, promptly following delivery.
No mileage or travel charges will be honored on any equipment that is
deemed portable. In general, equipment with a cord and plug weighing
less than 50 lb. (22.7 kg) is considered portable and should be taken or
shipped to the closest authorized service agency, transportation prepaid .
CO NTAC T
Should you require any assistance regarding the operation or
maintenance of any Wells equipment; write, phone, fax or email
our service department. In all correspondence mention the
model number and the serial number of your unit, as well as
the voltage or type of gas you are using.
Business hours are 8:00 a.m. to 4:30 p.m. Central Standard Time
Telephone 314.678.6314
Fax 314.781.2714
Email customerservice@star-mfg.com
www.wells-mfg.com
ANTY EXCLUSIONS
WARR
THE FOLLOWING WILL NOT BE COVERED UNDER WARRANTY.
• Any product which has not been installed, cleaned, maintained, or
used in accordance with the directions published in the appropriate
installation sheet and/or owner’s manual as well as national and local
codes, including incorrect gas or electrical connection. Wells is not liable
for any unit which has been mishandled, abused, misapplied, subjected
to chlorides, harsh chemicals, or caustic cleaners, damaged from
exposure to hard water, modified by unauthorized personnel, damaged
by flood, fire, or other acts of nature [or God], or which have an altered
or missing serial number.
• Installation, labor, and job checkouts, calibration of heat controls,
air and gas burner/bypass/pilot adjustments, gas or electrical
system checks, voltage and phase conversions, cleaning
of equipment, or seasoning of griddle surface.
• Replacement of fuses or resetting of circuit breakers, safety
controls, or reset buttons.
• Replacement of broken or damaged glass components, quartz heating
elements, and light bulbs.
• Labor charges for all removable parts in gas charbroilers and
hotplates, including but not limited to burners, grates, and
radiants.
• Any labor charges incurred by delays, waiting time, or operating
restrictions that hinder a service technician’s ability to perform service.
• Parts that fail or are damaged due to normal wear or labor for
replacement of Items that can easily be replaced during a daily
cleaning routine. such as but not limited to silicone belts, PTFE nonstick sheets, knobs, control labels, bulbs, fuses, quartz heating
elements, baskets, racks, and grease drawers.
• Components that should be replaced when damaged or worn, but have
been field-repaired instead [eg. field-welded fry pots].
• Any loss of business or profits.
ADDITIONAL WARRANTIES
Specialty/chain specific versions may also have additional and/or
extended warranties.
PRODUCTS PARTS LABOR
universal ventless hoods 2 years 1 year
canopy hoods 2 years 1 year
“Cook’n Hold” equipment [HW10,
HWSMP, LLSC7, LLSC7WA, LLSC11,
2 years 1 year
an d LLSC 1 1WA]
cast iron grates, burners, and burner
shields
original Wells parts sold to repair
Wells equipment
1 year
90 days
Service First 1 year
The fore going warrant y is in lieu of any and a ll other warranti es expresse d or implied and c onstitutes the e ntire warranty. 2M-Z22393 • Rev A • 02.2018
TABLE OF CONTENTS
WARRANTY
SPECIFICATIONS 1
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
EXPLODED VIEW & PARTS LIST 11
WIRING DIAGRAM 16
PARTS & SERVICE
21
CUSTOMER SERVICE DATA 21
INTRODUCTION
Thank You for purchasing this Wells Bloomfield 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.
ELECTRICAL SPECIFICATIONS
MODEL VOLTS WATTS
HT-200AF
HT-227AF
HT-300AF
HT-327AF
HT-400AF
HT-427AF
HT-500AF
M021B 2M-308086 Owners Manual for Autofill Built-In Bain Marie Warmers
HT-527AF
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
1800
2400
2500
3300
2700
3600
3700
5000
3600
4800
5000
6600
4500
6000
6200
8300
AMPS PER LEG 3ø
L1 L2 L3
8.7
10.0
11.9
13.8
13.0
15.0
17.9
20.6
15.0
17.3
20.0
23.8
18.7
21.7
25.8
29.8
8.7
10.0
11.9
13.8
8.7
10.0
11.9
13.8
AMPS 1ø
10.0
11.9
13.8
13.0
15.0
17.9
20.6
17.3
20.0
23.8
27.5
21.7
25.0
29.8
34.4
8.7
1
FEATURES & OPERATING CONTROLS
WELLSLOKS
INDICATOR
LIGHT
TEMPERATURE
CONTROL
(THERMOSTAT)
A. THERMOSTAT
On THE
RMOSTATICALLY CONTROLLED heated tanks, power
is applied to the heating element according to the control knob
position and the actual temperature at the temperature sensing
thermobulb.
The desired temperature is controlled by rotating the
TEMPERATURE CONTROL KNOB. The knob has a numeric
scale, where higher numbers correspond to higher temperature.
The INDICATOR LIGHT will glow when the thermostat is calling
for heat (i.e. the element is energized).
The dial will rotate approximately 300º, and will reach a “stop” at
each end. The OFF position is marked.
The dial position is an indication of the temperature setting.
Actual temperature will vary depending upon type of product,
food consistency and other such variables.
B. WELLSLOKS
Built-in heated tanks are equipped with WELLSLOKS, uniquely
designed turnout tabs which help secure the tank flange to the
counter top.
(See Installation Instructions, supplied with the appliance, for
details.)
C. DRAIN VALVE
Built-in heated tanks are equipped with a 1" NPT drain and
1/4-turn valve. Valve lever "down" is open; "up" is closed.
Valve must be closed for operation.
D. AUTOFILL
On AUTOFILL units, water is automatically fed into the tank
whenever:
a. The thermostat is turned to the ON position; and,
b. The water level probe does not sense water.
M021B 2M-308086 Owners Manual for Autofill Built-In Bain Marie Warmers
M021A 2M-308085 Owners Manual for Built-In Bain Marie Warmers
2
PRECAUTIONS AND GENERAL INFORMATION
This appliance is intended for use in commercial establishments
only.
This appliance is intended
consumption. No other use is
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 qualified technical personnel.
Any procedure which requires the use of tools must be performed by a
qualified technician.
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.
to hold pre-heated food for human
recommended or authorized by the
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
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.
DAMAGE
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
Refer to the product nameplate for the specific 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
M021A 2M-308085 Owners Manual for Built-In Bain Marie Warmers
M021B 2M-308086 Owners Manual for Autofill Built-In Bain Marie Warmers
U Listed under UL File E6070.
3
AGENCY LISTING INFORMATION
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 qualified
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 flammable o
combustible materials in, on
or near the appliance.
r
UNPACKING & INSPECTION
Carefully remove the appliance from the carton. Remove all
protective plastic film, 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.
COMPONENTS
WARMER w/ CONTROL PANEL
1" NPT VALVE
PREPARATION
Refer to the Installation Instruction Sheet for cutout dimensions and
required clearances. Maintain required clearances between the
appliance and adjacent combustible surfaces.
INSTALLATION
1. This is a GENERAL GUIDE. For specific cutout dimensions and
other installation details, refer to the Installation Instructions
supplied with the warmer.
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
specific instructions.
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.
2.
Cutout dimensions for tank units and control panels are listed on
the Installation Instructions provided with the warmer. Verify style
of control panel (e.g square, rectangular) before making cutout.
NOTE: Cuto
control panels; and, for wood and metal counters.
Verify the dimensions are correct for the installation before making the
cutout.
ut dimensions are different for square and rectangular
M021B 2M-308086 Owners Manual for Autofill Built-In Bain Marie Warmers
4
3. For “top-mounted” installation:
a. Verify that provided sealants are applied to the underside of
the warmer top flange 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 co
Apply a thin bead of food-grade silicone sealant around the
c.
unter.
flange 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.
e. For heated tanks installed in plastic (e.g. Corian®) 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 purpo
The installer should contact the manufacturer or distributor of
the countertop material for specific installation instructions.
D.
ELECTRICAL I
NSTALLATION
1. Refer to the nameplate. Verify the electrical service power.
Voltage and phase must match the nameplate specifications.
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 ex
ceed the
specifications listed on the provided specification sheet .
3.
Warmer and control unit must be connected to an appropriate
building ground. Ground connection will be marked “GND” or “ ” .
E. PLUMBING INSTALLATION
For use in the State of Massachusetts, this appliance must be
installed in compliance with M
assachusetts Fuel Gas and
Plumbing Code CMR 248.
1.
IMPORTANT:
All plumbing i
plumbe
2. Some juri
in the drain line. It is the respon
nstallations must be performed by a qualified
r.
sdictions may require an approved back-flow preventer
sibility of the plumber to determine
such requirement, to provide the proper back-flow prevention
device, and to properly install the required back-flow preventer.
se.
INSTALLATION
BOTTOM OF COUNTER
NOTE: Damage caused by
leaks due to improper
installation is NOT covered by
warranty.
IL2456
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
specified on the specification
sheet will void the UL listing,
and may void the warranty.
3. For AUTOFILL units: Some jurisdictions may require an
approved ba
ck-flow preventer in the water supply line. It is the
responsibility of the plumber to determine such requirement, to
provide the proper back-flow prevention device, and to properly
install the required back-flow preventer.
Autofill supply must be connected to a COLD WATE
M021B 2M-308086 Owners Manual for Autofill Built-In Bain Marie Warmers
R line only.
5
NOTE: Plumb connections
must be made in compliance
with all Federal, State and
Local Plumbing Codes and
Ordinances.
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.
A. WET OPERATION
sure the drain valve is fully closed before turning thermostat ON
Make
Add approximately 1” of hot tap water before turning the warmer ON.
Use of hot water will allow a faster preheat.
1. For non-autofill units: check the water level frequently and
add hot water as necessary to prevent the tank from running
dry. Do not add water to the tank if it has run dry.
2. If your Bain Marie runs dry, turn it OFF and allow to cool to
room temperature before adding water.
B. PRE-HEATING THE BAIN MARIE
Make sure the drain valve is fully closed before filling tank.
Turn temperature control to HI or highest temperature setting.
Allow tank to preheat for approximately 30 minutes, then set the control
for the desired temperature.
C. OPERATION
ck water level frequently during use. Autofill units should be
Che
checked periodically to verify proper operation of the autofill feature.
Running warmers dry will lower the temperature of the food, and will
damage the tank.
DO: Always use pot or inset.
DO NOT place food directly into the tank.
DO: Always pour hot water into the warmer before it is preheated.
DO NOT pour water of any temperature into a dry, heated tank.
This will damage the unit.
DO NOT put ice into the tank. This will cause condensation on the
inside of the tank shrouds. Damage caused by condensation is
NOT covered by warranty.
DO: Stir thick food items frequently to keep food heated uniformly.
DO: Keep pots and insets covered to maintain food quality and
temperature.
DO NOT use metal implements, steel wool, or caustic or abrasive
cleansers to clean warmer pan.
.
M021B 2M-308086 Owners Manual for Autofill Built-In Bain Marie Warmers
D. AUTOFILL WARMERS
Autofill control the water level by a water level sensing probe placed in
the side of the tank approximately 1" from the tank bottom.
Water fills the tank through an inlet tube.
The autofill function is active only when the thermostat is turned ON .
Make sure the drain valve is fully closed before turning thermostat ON.
Clean water level probe daily to maintain proper water level in warmer.
6
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