Wells WV-4H Series User manual

WELLS BLOOMFIELD, LLC
265 Hobson St. • Smithville, TN 37166
telephone: [phone]
wells-mfg.com
OWNERS MANUAL
WV-4H SERIES
HOTPLATE
COOKTOP
with
UNIVERSAL
HOOD
MODELS:
WV4HF
WV4HFRW
WV4HS
WV4HSRW
Includes
INSTALLATION
USE & CARE
EXPLODED VIEW
PARTS LIST
WIRING DIAGRAM
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.
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.
504
p/n 2M-303903 REV G (04-22) M504 130130
Model WV-4HSRW

LIMITED EQUIPMENT WARRANTY
Wells Manufacturing warrants to the original purchaser of new Wells
products to be free from defects in material or workmanship, under normal
and proper use and maintenance service as specified by Wells and upon
proper installation and start-up in accordance with the instructions
supplied with each Wells unit. Wells’ obligation under this warranty is
limited to a period of one [1] year from the date of original installation, or
eighteen [18] months from original invoice date, whichever occurs first.
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 Wells
authorized 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.
CONTACT
Should you require any assistance regarding the operation or maintenance
of any Wells Manufacturing; phone or email our service department. In all
correspondence provide the model number and serial number of the unit
needing service; include the voltage or gas type.
Normal Business Hours: 8:00 a.m. to 4:30 p.m. Central
Telephone: [phone] Tech Service Option 2
Email: [e-mail]
www.Wells-Mfg.com
WARRANTY EXCLUSIONS
THE FOLLOWING WILL NOT BE COVERED UNDER WARRANTY.
Wells’ sole obligation under this warranty is limited to either repair or
replacement parts, subject to the additional limitations detailed
below. This warranty neither assumes nor authorizes any person to
assume obligations other than those expressly covered by this
warranty.
• Any product which has not been used, maintained, or installed in
accordance with the directions published in the appropriate
installation sheet and/or owner’s manual, including incorrect gas or
electrical connection. Wells is not liable for any unit which has been
mishandled, abused, misapplied, subjected to harsh chemicals,
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 and consumable 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.
• Replacement of parts that fail or are damaged due to normal wear
or labor for replacement of parts that can be replaced during a daily
cleaning routine, such as but not limited to silicone belts, PTFE non-
stick sheets, control labels, knobs, bulbs, fuses, quartz heating
elements, baskets, racks, and grease drawers.
• Any economic loss of business or profits.
• Non-OEM parts. Use of non-OEM parts without Wells’ approval will
void the warranty.
• Units exceeding one [1] year from original installation date, or more
than eighteen [18] months from original invoice date, whichever
comes first.
ADDITIONAL WARRANTIES
• Specific/chain-specific equipment may have additional and/or
extended warranties.
The foregoing warranty is in lieu of any and all other warran�es
expressed or implied and cons�tutes the en�re warranty.

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
1
WARRANTY ...................................xi
SPECIFICATIONS...............................1
FEATURES & OPERATING CONTROLS .............2
PRECAUTIONS & GENERAL INFORMATION .........6
AGENCY LISTING INFORMATION .................7
INSTALLATION .................................8
OPERATION .................................. 12
CLEANING INSTRUCTIONS ..................... 17
MAINTENANCE SCHEDULES .................... 21
MSDS (Ansulex Low pH)......................... 24
TROUBLESHOOTING SUGGESTIONS ............ 26
ANSUL® COMPONENTS ....................... 27
EXPLODED VIEW & PARTS LIST ............... 28 - 35
WIRING DIAGRAM .......................... 36 - 38
PARTS & SERVICE ............................ 41
CUSTOMER SERVICE DATA ..................... 41
Thank You for purchasing this Wells Manufacturing 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.
TABLE OF CONTENTS
SPECIFICATIONS
INTRODUCTION
ELECTRICAL SPECIFICATIONS
MODEL ROLL VOLTS 3ø AMPS 1ø WATTS NEMA PLUG
WARMER 50/60 Hz L1 L2 L3 AMPS 1 PHASE 3 PHASE
WV-4HF NO 208V 16 15 26 30 6,300 6-50P 15-60P
240V 18 17 30 35 8,300 6-50P 15-60P
WV-4HFRW YES 208V 19 15 30 34 7,000 6-50P 15-60P
240V 22 17 34 38 9,100 6-50P 15-60P
WV-4HS NO 208V 20 19 34 39 8,100 6-50P 15-60P
240V 23 22 39 45 10,700 NO CORD 15-60P
WV-4HSRW YES 208V 19 15 30 34 7,000 NO CORD 15-60P
240V 27 22 43 48 11,500 NO CORD 15-60P
Minimum clearances required from unit to nearest combustible surface or object
BACK SIDE BOTTOM TOP
inches n/a 6 6 19
millimeters n/a 152 152 483

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
2
FEATURES & OPERATING CONTROLS
Fig. 1 Ventilator Section Operating Features & Controls

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
3
FEATURES & OPERATING CONTROLS (continued)
VENTILATOR SECTION
ITEM DESCRIPTION COMMENT
a6. FIRE SUPPRESSION AGENT TANK (1.5 gal.) Container for Ansulex™ Low-pH liquid re 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 re suppression system.
PULL ONLY IN CASE OF FIRE!
a11. FUSIBLE LINKS Automatically activates re suppression system in the event of re on
the cooktop.
12 LOWER REAR ACCESS PANEL Allows access to Ansul® re suppression agent tank (a6) and controls
also access to main power contactor (41).
a15. DISCHARGE NOZZLE Fire suppression media discharges here (2 places).
16 GREASE BAFFLE Extracts and drains most grease and moisture from the air ow.
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 bafe to grease cup.
28 VENTILATOR EXHAUST DUCT Exit point for ventilator airow - on top left rear of unit. DO NOT
BLOCK
a31. STATUS INDICATOR Displays status of re 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 re safety shut-down.
41 POWER CONTACTOR Energizes cooktop only while ventilator section is sensed as
operational.
42 BUILDING FIRE ALARM RELAY Reports re alarm condition to building re management system.
43 GROUND LUG Ground wire of power cord connects here.
44 INTERLOCK TERMINAL Provides connection for shut-down control by building re
management system.
56 VENTILATOR FAN Provides air movement for ventilation.
70 COOLING FAN Provides cooling for cooktop controls.

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
4
FEATURES & OPERATING CONTROLS (continued)
Fig. 2 Ventilator Section Controls & Indicator Lights
Fig. 4 Cooktop & Warmer Drawer Operating Features & Controls
Fig. 3 Cooktop Section Controls & Indicator Lights

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
5
FEATURES & OPERATING CONTROLS (continued)
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 lters are out of position. Check all
lters and bafes 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 sufcient air
ow. Filter MUST be replaced. Appliance is SHUT DOWN until
expended lters are replaced.
COOKTOP SECTION CONTROLS
H1 LEFT FRONT HOTPLATE CONTROL Innite switch control of temperature of one hotplate section.
H2 LEFT REAR HOTPLATE CONTROL Innite switch control of temperature of one hotplate section.
H3 RIGHT REAR HOTPLATE CONTROL Innite switch control of temperature of one hotplate section.
H4 RIGHT FRONT HOTPLATE CONTROL Innite switch control of temperature of one hotplate section.
H5 POWER ON INDICATOR AMBER. Glows when temperature control is turned ON.
OPTIONAL WARMER SECTION CONTROLS
W.01 TEMPERATURE CONTROL Innite switch control of temperature of one warmer drawer.
W.02 POWER ON INDICATOR AMBER. Glows when associated temperature control is turned ON.
W.03 THERMOMETER (optional) Reads temperature inside drawer cavity. Must be ordered at time of initial
build.
W.04 HUMIDITY CONTROL Slide control of shutters to control air circulation within the warmer drawer.
W.05 DRAWER CATCH Holds drawer closed.
W.06 DRAWER STOP Prevents drawer from opening too far. Spring loaded to permit easy removal
of drawer.
W.07 DRAWER ROLLERS Support drawer and allow it to open and close smoothly.
W.08 POWER SWITCH (RWT) Energizes unit (RWT-style only)
W.09 CONTROLLER
Controls cavity temperature. Readout displays setpoint and actual
temperature information. UP ARROW / DOWN ARROW keys allow
modication of setpoint temperature. (RWT-style units only)

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
6
NOTE: Fire suppression system and all associated components
must only be serviced by an authorized Ansul® Distributor. All setup,
charging, repair and/or adjustment of the re suppression system must
be performed by an Authorized Ansul® Distributor ONLY.
IMPORTANT: If a remote pull station is installed, both rear casters
(9) must be replaced with legs to deter moving the unit. MOVING AN
APPLIANCE WITH A REMOTE PULL STATION WILL DISCHARGE
THE FIRE SUPPRESSION SYSTEM.
This Ventless Cooking System™ is designed to help reduce odor
emissions, but will not completely eliminate cooking odors. Air
exchange at the installation site must comply with the requirements of
the local jurisdictional authority. To ensure that odors do not build-up,
recommended minimum air exchange is 300 - 400 cfm of outside air
into and out of the area where the unit is used. Recommend use of
wall fan (GRAINGER # 4C707) and wall switch (Grainger #4C254), to
be supplied by user.
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 exposed element,
control, control panel or wiring.
DO NOT submerge pre-lter or lter pack in water.
The technical content of this manual, including any wiring diagrams,
schematics, parts breakdown illustrations and/or adjustment
procedures, is intended for use by qualied technical personnel.
Any procedure which requires the use of tools must be performed by a
qualied 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.
PRECAUTIONS AND GENERAL INFORMATION
WARNING:
ELECTRIC
SHOCK HAZARD
All servicing requiring
access to non-insulated
electrical components
must be performed by a
factory authorized techni-
cian.
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 will result if
these instructions are not
followed.

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
7
AGENCY LISTING INFORMATION
STD 4 E146882
OPERATIONAL NOTES:
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 airow 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 airow through the old lter pack will soon cause a system
shut-down when the airow falls below minimum vapor capture levels.
KEEP SPARE FILTER PACKS ON HAND.
IMPORTANT: If you decide to “get the most” out of the old lter pack,
and continue to use it until a system shut-down happens, it is advisable
to have a fresh lter 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-lter and/or lter pack (i.e.
red SERVICE REQUIRED light is on), when the user fails to have
the proper replacement pre-lter and/or lter pack on hand. Use only
genuine Wells replacement parts and lters, call [phone] or your
authorized Wells service agent. Parts supplied by others will void your
warranty and may not provide safe operation.
The Ventless Cooking System™ hood is designed as part of a WELLS
cooktop appliance only. No other use of this product is authorized by
the manufacturer or its agents. Wells Mfg. assumes no liability for the
use of this equipment with products by any other manufacturer’s, or for
use of this equipment with any Wells Manufacturing product other than
in factory certied applications.
This appliance conforms to NSF Standard 4 for sanitation only if
installed in accordance with the supplied Installation Instructions
And operated and maintained in accordance with the instructions
in this manual.
This appliance is Listed under UL File E146882.
PRECAUTIONS AND GENERAL INFORMATION (continued)
Fig. 5 Ventilator
Warning
Indicators

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
8
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 qualied
technician with full knowledge
of all applicable electrical
codes. Failure can result in
personal injury and property
damage.
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 these components in or near the appliance for
later use. To prevent loss, these items should be installed as soon as
possible.
1 ea. FIRE SUPPRESSION AGENT (ANSULEX® Low pH, 1.5 GAL.)
See Material Safety Data Sheet, page 22.
1 ea. FIRE SUPPRESSION MEDIA TANK
1 ea. FIRE SUPPRESSION TANK CHARGING CARTRIDGE
1 ea. GREASE BAFFLE
1 ea. FILTER PACK ASSEMBLY
1 ea. PRE-FILTER HOLDER with PRE-FILTER
1 ea. GREASE CUP
1 ea. GREASE TROUGH
2 ea. 6” SIDE SPACERS
1 ea. LITERATURE PACKAGE
Additionally:
2 ea. DRAWER INSERTS (if ordered with warmer drawers)
4 ea. HOTPLATE DRIP PANS (if ordered with spiral elements)
4 ea. ELEMENT SUPPORTS (if ordered with spiral elements)
SETUP
Setup the appliance only on a rm level surface. Non-combustible
material is recommended.
Refer to the Installation Instruction Sheet for required clearances.
Maintain required clearances between the appliance and adjacent
combustible surfaces. Verify 6” left and right side clearances to
combustible construction. This appliance requires a minimum of 8 ft
(96”) (oor to overhead) to allow for adequate exhaust.
Verify that the VENTILATOR HOOD ASSEMBLY is properly and
securely assembled to the cooking appliance before beginning the
installation procedure.
If a remote manual pull station is to be installed, replace the rear
casters with legs.
Level the unit after it is in its nal position. Using a spirit level, verify
that the unit is level
front-to-back and side-to-side.
Avoid storing ammable or combustible materials near the appliance.

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
9
SERVICE TECHNICIAN INSTALLATION NOTES
An Ansul® technician must charge and arm the re suppression system
before the ventilator blower will operate. See page 10.
Installation and start up must be performed by an Authorized
Installation Company.
Installer must complete the WARRANTY REGISTRATION form, and
record appliance installation particulars on the CUSTOMER SERVICE
DATA form in this manual.
Certain codes require cooking equipment to be restrained with a
RESTRAINT DEVICE. It is the RESPONSIBILITY OF THE INSTALLER
to check with the AUTHORITY HAVING JURISDICTION, in order to
ascertain the applicability of this requirement to THIS SPECIFIC
EQUIPMENT INSTALLATION. Any restraint device must allow
access to the back and sides of the unit to provide for servicing and
maintenance, and must not interfere with the operation of the FIRE
SUPPRESSION SYSTEM.
ELECTRICAL INSTALLATION
Refer to the nameplate on the cooking appliance to verify the
ELECTRICAL SERVICE POWER. Voltage and phase must match the
nameplate specications, and available electrical service amperage
must meet or exceed the specications listed on page 1. Incoming
wiring must comply with National Electrical Code specications.
All cooktop / universal hood appliances ship from the factory wired 3ø
and include a 3ø cordset.
For 1ø operation:
a. Remove rear lower panel (item 12)
b. Refer to the wiring schematic diagram located on the inside of
the panel.
c. Service wiring and conduit, or appropriate cordset must be
provided by the electrical installer.
d. Wiring change must be performed by a licensed electrician.
e. Be sure to reinstall the panel when wiring change is completed.
IMPORTANT!
Verify that this VENTILATOR
and food cooking equipment
installation is in compliance
with the specications listed
in this manual, with local
code requirements, and in
accordance with N.F.P.A
96 (THE STANDARD FOR
VENTILATION CONTROL
AND FIRE PROTECTION
OF COMMERCIAL
COOKING OPERATIONS
- current edition).
THIS IS THE
RESPONSIBILITY OF
THE INSTALLER
DANGER
ELECTRIC
SHOCK
HAZARD
ELECTRIC CONNECTIONS
MUST BE MADE BY A
LICENSED ELECTRICIAN
Electrical shock will cause
death or serious injury.
NOTE: This appliance
requires a dedicated 60
Amp electrical branch circuit
protection.
IMPORTANT:
Contact a licensed electri-
cian 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.
INSTALLATION (continued)

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
10
INSTALLATION (continued)
FIRE SUPPRESSION SYSTEM INSTALLATION
1. Any REMOTE MANUAL PULL STATION must be installed by an
authorized ANSUL® distributor in accordance with the
AUTHORITY HAVING JURISDICTION.
NOTE: If a REMOTE MANUAL PULL STATION is installed, moving
the unit for servicing will cause the Ansul® system to discharge. In this
case, the unit must only be installed with four xed legs (i.e. remove
rear casters and replace with legs). Additional legs may be ordered
through an Authorized Wells Service Agency. See page 25.
2. The FIRE SUPPRESSION SYSTEM is comprised of a
pressurized cartridge & container of liquid re suppressant, with
associated plumbing and controls. It utilizes factory installed
FUSIBLE LINKS for automatic actuation, and a factory installed
MANUAL PULL STATION
for manual actuation.
Two NOZZLES are used
to disperse the liquid re
suppression media.
3. When the re suppression
system activates, the
re suppression media
is discharged, both the
cooking appliance and
the ventilator are de-
energized, and a buzzer
will sound continuously.
The re suppression media
will form an emulsion
designed to both smother
and cool the re.
Call your Authorized
Ansul® Distributor
immediately for service.
NOTE: See page 22 for the Material Safety Data Sheet for the re
suppression agent.
4. The MANUAL PULL STATION and any similar REMOTE MANUAL
PULL STATION will activate the re suppression system when the
ring on the pull station is pulled horizontally.
DANGER
FIRE
HAZARD
THE FIRE SUPPRESSION
SYSTEM MUST BE
CHARGED AND CERTIFIED
BY AN AUTHORIZED
ANSUL® DISTRIBUTOR.
NEVER ATTEMPT TO
MODIFY OR BYPASS
THE FIRE SUPPRESSION
SYSTEM.
AN UNCONTROLLED FIRE
CAN CAUSE SERIOUS
INJURY, DEATH AND/OR
PROPERTY LOSS.
IMPORTANT: The FIRE
SUPPRESSION SYSTEM
must be SET-UP and
CHARGED by an authorized
Ansul® distributor before the
ventilator blower will operate.
NOTE: If the re
suppression system is
discharged, a buzzer will
sound continuously and
the cooking appliance will
remain inoperable until the
re suppression system is
serviced. Recharging and
resetting must be performed
by an authorized Ansul®
distributor ONLY.
Charging of the Ansul Fire
Suppression system must be
in accordance with Ansul®
Design, Installation, Recharge
and Maintenance Manual.
(Ansul® #418087-05)
Fig. 6 Fire Suppression System

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
11
FILTERS INSTALLATION
1. FILTER PACK: Ships installed in the hood. If the FILTER PACK is
not in position, the CHECK FILTERS indicator will light.
If the FILTER PACK becomes clogged, the REPLACE FILTER
PACK indicator will glow.
To install the FILTER PACK: Position the lter pack with the charcoal
portion UP. Slide the lter pack toward the rear of the unit until it
contacts the guides on the back panel. Push the lter pack UP into the
upper opening until it rests rmly against the lter pack seal. When up
in position, holder clips can be snapped over wall ledge on each side.
To remove FILTER PACK: Grasp both holder clips and pull INWARD
until the clips clear the sidewall ledge. Then, pull the lter pack down
and out.
2. PRE-FILTER: The PRE-FILTER ships in the FILTER FRAME. If the
PRE-FILTER is not in position, or if the PRE-FILTER is not in the
FILTER FRAME, the CHECK FILTERS indicator will light. If the PRE-
FILTER becomes clogged, the REPLACE PRE-FILTER indicator will
glow.
To install the PRE-FILTER: Pay attention to the air ow markings. The
AIR FLOW arrow will point away from the installer. Slide the assembly
up into the front opening, behind the upper lter rail. While pressing
slightly against the bottom of the assembly, pull the FILTER HANDLE
toward you so as to engage the FILTER HOOK over the lip of the top
lter rail. Then lower and seat the assembly into the top indentation of
the lower lter rail.
3. GREASE BAFFLE: If the GREASE BAFFLE is not in place, the
CHECK FILTERS indicator will glow.
To install the GREASE BAFFLE: Slide the grease ba󰀪e up into the
indentation of the upper lter rail, then lower and seat it into the bottom
indentation of the lower lter rail. Pull toward you and downward to
verify the GREASE BAFFLE is properly seated in the lower frame rail.
NOTE:
The GREASE BAFFLE and
FILTER PACK activate
mechanical switches, and the
PRE-FILTER activates a
vacuum switch, to verify that
the lter elements are in their
proper positions.
All lter elements must be
properly installed or the
cooktop will not be energized.
Also, the CHECK FILTERS
indicator will light.
IMPORTANT:
The lter hook prevents the
PRE-FILTER from being drawn
in during operation. After
installation, press against the top
of the lter frame to verify proper
engagement of the lter hook
over the lip of the top lter rail.
IMPORTANT:
Protect the surface of ceramic
cooktops from damage in the
event a lter is accidentally
dropped.
Use only genuine Wells parts and
lters, call [phone] or your
authorized Wells service agent.
Parts supplied by others will void
your warranty and may not provide
safe operation.
INSTALLATION (continued)
Fig. 7 Filter Installation

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
12
INSTALLATION (continued)
WARNING
SLIP / FALL
HAZARD
SPILLED OIL
DO NOT OPERATE UNLESS
THE GREASE CUP IS
INSTALLED.
Oil and moisture will drip onto
the oor and falls may result.
Death or serious injury may
result from slipping and falling
CAUTION:
BURN HAZARD
DO NOT OPERATE UNLESS
GREASE TROUGH IS
INSTALLED.
Moisture will drip into the hot
cooking surface, causing
splattering of hot liquids.
Serious injury can result from
contact with hot splatter.
GREASE TROUGH AND GREASE CUP INSTALLATION
1. Install the GREASE TROUGH into the brackets below the grease
ba󰀪e.
2. Install the GREASE CUP on the right side of the unit, directly below
the grease trough.
ROLL WARMER INSTALLATION
1. Be sure roller catches (inside warmer cavity) are in the open
position. Install drawer assemblies in drawer slides.
2. Place appropriate one drawer insert pan into each warmer drawer.
If used, place one Humitrol rack into each drawer pan.
Fig. 8 Roll Warmer Drawer Pan Installation

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13
OPERATION
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
VENTILATOR OPERATION
1. Press the VENTILATOR POWER switch to ON. The green
VENTILATOR POWER light will glow and the blower fan will start.
After a short time, if all lters are sensed as being in position and
not clogged, the cooktop will be energized. The roll warmer is
energized at all times.
During normal operation, the VENTILATOR POWER light will be
the only light glowing on the upper control panel.
2. If the amber CHECK FILTER light glows, one or more lter elements
is out of position. Check the GREASE BAFFLE, PRE-FILTER and
FILTER PACK for proper installation in their respective positions.
Grease ba󰀪e and lter pack position are sensed by mechanical
switches. Pre-lter position is sensed by a vacuum switch.
3. When the amber REPLACE PRE-FILTER light glows, the pre-lter
is nearing the end of its service life. Replace the disposable PRE-
FILTER ELEMENT.
4. When the amber REPLACE FILTER PACK light illuminates, the
HEPA / Charcoal lter pack is nearing the end of its service life.
Replace the lter pack.
Note: The REPLACE PRE-FILTER and REPLACE FILTER PACK
lights are a warning that the indicated lter is near the end of its
service life. The appliance will continue to operate for a period of
time after the light glows to allow continued operation through a
peak period. However, the indicated lters must be replaced within
a reasonably short time period or they will clog and shut down
electrical power to the cooktop. The ventilator blower will continue
to run.
5. When the red SERVICE REQUIRED light glows, either the
pre-lter or lter pack (or both) is clogged and can no longer pass
su󰀩cient air to allow further operation. The ventilator fan continues
to run, but the cooktop is shut down until the underlying clogged
lter situation has been corrected. This can occur when neither
CHANGE...FILTER indicator light is lit, if both pre-lter and lter pack
are marginal. Replacing both the pre-lter and the lter pack will
remedy the situation.
Note: replacing the pre-lter, even though not very dirty, will often
extend the service life of the more expensive lter pack.
Reset the unit by turning the VENTILATOR POWER switch to OFF,
then back ON.
6. A failure of incoming electrical power will cause a shut down of the
unit. After power is restored, reset the unit by turning the
VENTILATOR POWER switch to OFF, then back ON.Fig. 9 Ventilator Indicator
and Warning Lights

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
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OPERATION (continued)
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
IMPORTANT:
The dial markings are an
INDICATION of
temperature only. The
temperature of the food
product depends on many
factors, including the size,
shape and material of the
food container, and the
quantity and consistency of
the food
product.
HOTPLATE COOKTOP OPERATION
GENERAL OPERATIONAL NOTES
Carefully read the description of the hotplate operation on the
specication sheet.
DO NOT attempt to perform any maintenance or service unless the
hotplate is disconnected from electrical power.
DO turn the circuit breaker for the hotplate o󰀨 before cleaning,
servicing or performing any maintenance.
DO NOT use sharp objects or metal implements to clean the heating
elements.
DO use a plastic spatula or plastic scouring pad to remove burned-on
food product.
OPERATION
Each heating element is controlled by an innite switch temperature
control:
OFF removes power from the element
LOW thru 8 are temperature settings
Higher numbers indicate higher temperatures
There is a continuous range of settings between LOW and HI
HI is a continuous ON setting
The indicator light will glow any time the temperature control is on.
On ceramic cooktops, the HOT SURFACE indicator will glow any time
the control is on, or the surface is above 150ºF.
Cooking Recommendations:
Save energy by turning the temperature control o󰀨 any time the
hotplate is not in use. The coil-type and ceramic heating elements will
provide full heat within 30 seconds, while solid plate heating elements
will reach full heat within 2 minutes, making it unnecessary to leave the
unit on during intermittent use.
Each heating element can hold up to a 16 quart pot or pan. For
e󰀩cient heating of food product, pots and pans should be no more than
10” in diameter.
Maximize the e󰀩ciency of solid elements and ceramic cooktops by
using at-bottom pots and pans.
Stir thick liquids frequently to maintain a consistent temperature.
Fig. 10 Hotplate Temperature
Control

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
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OPERATION (continued)
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
NOTE:
The chart below is intended
as a guide ONLY. Your
own experience with this
appliance, type of foods
and method of operation will
enable you to determine the
temperature control and air
vent settings best suited to
your operation.
DRAWER WARMER OPERATION
HEATING OPTIONS
1. Moist heat with Humitrol Rack:
a. MOIST operation prevents food from drying out as moisture, as
well as heat, is applied to the warming chamber.
b. To set for MOIST operation, remove Humitrol Rack from bottom
of drawer insert pan and carefully pour approximately 2 quarts of
water (½” depth) into the pan. Reinstall rack.
c. The Humitrol Rack decreases the sloshing e󰀨ect of the water in
the pan when the drawer is opened. When the drawer is closed,
the Humitrol Rack allows steam to rise through the stored product
in the drawer.
d. Place the food directly on the rack. The rack is designed to
support the food o󰀨 of the steam vents, where water droplets may
form.
e. Check the water level in the pan periodically, and add water
when necessary.
f. Set the front air vent between fully closed and half-open. Actual
setting will depend upon the type and amount of product stored in
the drawer, the temperature setting, and the frequency with which
the drawer is opened.
2. Moist heat with pans:
a. This Wells warmer is designed to accommodate any combination
of standard-size, steam table pans.
b. Place a small amount of water in drawer pan. Place pans in
drawer pan.
c. Check the water level in the pan periodically, and add water when
necessary.
3. Dry heat:
a. For some applications, you may want to store previously
prepared foods in a dry-heat environment. To do so, place the
food directly into the empty (i.e. no water) drawer pan.
OPERATING CHART FOR DRAWER WARMERS
Fig. 11 Roll Warmer
Temperature Control
PRODUCT TYPE RECOMMENDED
STORAGE TEMP.
TYPE OF
HEAT
CONTROL
SETTING
AIR VENT
SETTING
Hard Rolls 160-185ºF Dry 7-8 Closed
Soft Rolls 150-175ºF Moist 6-7 Open - ½
Vegetables 175-185ºF Moist 7-8 Open - ½
Meats 165-185ºF Dry 6-8 Closed
Fish 165-185ºF Moist 6-8 Open
Casseroles 150-175ºF Dry 6-7 Closed
Pies, Desserts 160-185ºF Dry 6-7 Closed

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
16
OPERATION (continued)
RWT- CONTROL MODULE
SET SETPOINT TEMPERATURE
Press an arrow key:
UP arrow to increase
DOWN arrow to decrease
Release key when desired setpoint temperature is
displayed.
Reading is locked into memory 3 seconds after last
key stroke.
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.
Release keys when display reads F C.
Within 3 seconds, press UP arrow or DOWN arrow
key until desired indicator (ºF or ºC) glows.
The new value will lock into memory 3 seconds
after last keystroke.
ITEM 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 congured 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
DRAWER WARMER OPERATION (when provided)

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
17
CAUTION:
ELECTRIC
SHOCK HAZARD
Disconnect appliance from
electric power before
cleaning.
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns. Allow appliance to cool
before cleaning.
IMPORTANT:
DO NOT spill or pour water
into controls, control panel,
wiring or coil-type hotplate
elements. Damage to internal
components will occur.
Damage to internal
components from water
damage is not covered by
warranty.
IMPORTANT:
DO NOT use steel wool or
metal implements to clean
hotplate elements.
HOTPLATE COOKTOP DAILY CLEANING
PREPARATION Disconnect appliance from electric power
Allow to cool before cleaning
FREQUENCY Daily
TOOLS Warm water and a mild detergent
Soft clean cloth or sponge
Plastic scouring pad, plastic scraper
Disconnect appliance from electric power
Allow to cool before cleaning
Spiral Hotplate Elements:
Raise elements. Remove and empty drip pans.
Drip pans and element supports may be washed in a sink or
dishwasher. Allow to air dry and reinstall.
Scrape burned-on food debris from element using a plastic scraper or
plastic scouring pad. DO NOT use steel wool or metal implements to
clean elements.
Solid Plate Hotplate Elements:
Scrape burned-on food debris from element using a plastic scraper or
plastic scouring pad. DO NOT use steel wool or metal implements to
clean elements.
Wipe elements and counter top with a clean cloth or sponge
dampened with warm water and a mild detergent. Rinse by wiping
with a clean cloth or sponge dampened with warm water. Allow to air
dry.
Procedure is complete.
CLEANING INSTRUCTIONS

M504 p/n 2M-303903 Owners Manual WV-4H Ventless Hotplate Cooktop
18
CLEANING INSTRUCTIONS (continued)
VENTILATOR WEEKLY CLEANING
PREPARATION: Disconnect appliance from electric power
Allow to cool before cleaning
FREQUENCY: Weekly
TOOLS: Warm water and a mild detergent
Soft clean cloth or sponge
Bristle brush
Container for disposal of grease
1. Remove the grease ba󰀪e, pre-lter assembly, grease trough and
grease cup. Empty the grease trough and grease cup.
2. Remove the pre-lter from the lter frame. Wash and rinse the lter
frame ONLY.
3. Wash and rinse the grease ba󰀪e, grease trough and grease cup in a
sink or dishwasher using mild detergent and warm water. Allow to air
dry.
4. Reinsert the pre-lter into the lter frame. Reinstall the pre-lter,
grease ba󰀪e, grease trough and grease cup.
Procedure is complete
CAUTION:
ELECTRIC
SHOCK HAZARD
Disconnect appliance
from electric power before
cleaning.
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns. Allow appliance to cool
before cleaning.
IMPORTANT:
Never allow PRE-FILTER or
FILTER PACK to get wet.
DO NOT wash either of these
two lters. Washing these
lters will ruin them and cause
the appliance to shut-down.
IMPORTANT:
DO NOT spill or pour water
into controls, control panel,
wiring or coil-type hotplate
elements. Damage to internal
components will occur.
Damage to internal
components from water
damage is not covered by
warranty.
IMPORTANT:
DO NOT use steel wool
or metal implements to
cleancabinet surfaces.