Wells WDDI-31 User manual

WELLS MANUFACTURING INTERNATIONAL INC.
265 Hobson Street • Smithville, Tennessee 37166
Telephone [phone] • Fax [phone]
www.wells-mfg.com
WDDI-35
VENTLESS
DOWNDRAFT
INDUCTION
RANGE TOP
MODEL
WDDI-31
WDDI-35
Installation and
Operation
Instructions
2M-Z23030 Rev. B 04/22
DO NOT DISCARD THIS MANUAL

Owners Manual for Ventless Downdraft Induction Range Top
2
TABLE OF CONTENTS
GENERAL WARRANTY
SAFETY INFORMATION
INSTALLATION INFORMATION
DAILY OPERATION
CLEANING
TROUBLESHOOTING
FEATURES
INSTALLATION
CONTROL PANEL
EXPLODED VIEW/PARTS
WIRING DIAGRAM
HOSE ROUTING
i
ii-iv
1
2
3
3
4-5
6-9
10
11
12
13

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: T[email protected]
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.
i

Owners Manual for Ventless Downdraft Induction Range Top
4
SAFETY SYMBOLS
These symbols are intended to alert the user to the
presence of important operating and maintenance
instructions in the manual accompanying the appliance.
THOROUGHLY INSPECT YOUR UNIT ON ARRIVAL
This unit has been tested for proper operation before leaving our plant to ensure delivery
of your unit in perfect condition. However, there are instances in which the unit may be
damaged in transit. In the event you discover any type of damage to your product upon
receipt, you must immediately contact the transportation company who delivered the
item to you and initiate your claim with that company. If this procedure is not followed,
it may affect the warranty status of the unit. If damage or loss is not apparent until after
equipment is unpacked, a request for inspection of concealed damage must be made
with carrier within 15 days. Please record the model number, serial number, voltage, and
purchase date in the area below at the time of receipt.
Model Number
Serial Number
Voltage
Purchase Date
MAINTENANCE AND REPAIRS
Contact your local authorized service agent for service or required maintenance. Please
have the information in the above fields ready when you call to ensure a faster service.
Using any part other than genuine Wells factory supplied parts relieves the manufacturer
of all liability. Due to periodic changes in designs, methods, procedures, policies, and
regulations, the specific actions contained in this document are subject to change without
notice. Wells reserves the right to change product specific actions and design without
notice. In regards to previously purchased equipment, such revisions do not entitle the
buyer to corresponding changes, improvements, additions or replacements. While Wells
Manufacturing exercises good faith efforts to provide information that is accurate, we are
not responsible for errors or omissions in information provided or conclusions reached as
a result of using the specifications. By using the information provided, the user assumes
all risks in connection with such use. When performing maintenance, power to the unit
should be unplugged or turned off.
PLEASE REFER TO THE WARRANTY PAGE FOR SPECIFIC WARRANTY INFORMATION.
AUTHORIZED SERVICE AGENT LISTING
Reference the listing provided with the unit or for an updated listing go to the website
or call customer service to find an agent.
Business hours: 8:00 a.m. to 4:30 p.m. Central Standard Time
Telephone: [phone]
Email: [e-mail]
Website: www.wells-mfg.com
ii

5
iii
SAFETY INFORMATION
This equipment is designed and sold for commercial use only, and is intended for use by personnel
trained and experienced in its operation. This is not sold for consumer use in and around the home
nor for use directly by the general public in food service locations.
Before using your new equipment, read and understand all the instructions and labels associated with
the unit prior to putting it into operation. Make sure all people associated with its use understand
the units operation and safety before they use the unit. If at any point the glass on the unit cracks,
immediately power down the unit, unplug it, and contact a service agent.
The proper size and type of cookware must be used at all times with these units. The cookware must
be specially designed to use with induction ranges for safe and ecient use and should be labeled as
such when purchased. The cookware must also be free of damage to the base, whether the function
appears to be impaired or not. The base of the pan or pot should be at least 4.75 in. (127 mm) and no
larger than 10.5 in. (267 mm) in base diameter. When possible a pan that covers the entire cooking
zone should be used. The pan will always need to be placed in the center of the cooking zone.
Metal utensils such as spoons should not be used in conjunction with these units. Nothing other than
approved cookware should ever be placed on or near the unit.
Anyone using the unit should keep a minimum of 2–4 inches (51–102 mm) of space between them
and the cooking zone whenever possible. It is recommended that you keep this distance at minimum
whenever the unit is powered on. Failure to do so may result in addition exposure to magnetic field.
Any metallic jewelry or piercings, including rings, which can be affected by magnetic fields as well
as eye glasses, watches, clothing with magnetic metal pieces, and electronic devices should not be
placed near or come in contact with the unit.
Potential users who have or may have any of the conditions described below should consult their
physician before using or being in close proximity to an induction unit. In any case, keeping a safe
distance from the unit will prevent potentially harmful leakage current from flowing through your
body and interfering with implanted devices and/or causing bodily harm.
Factors which should be discussed with a physician prior to use or work done in proximity
• Cardiac pacemaker, insulin pump, implantable cardioverter-defibrillator, cochlear implants, intra
cranial vascular clip[s], or other implantable medical devices and systems
• Pregnancy•metallic foreign bodies such as shrapnel or components used in reconstructive surgery
• Triggerfish® contact lenses and similar medical data recording equipment
Never touch the heating zone when the unit is powered on or has recently been in use. Flammable
materials should be kept away from the unit.
Always turn the unit off when not being used or when unattended.
Failure to comply with any and all warnings and instructions can and will potentially result in personal
injury or damage to the unit.

Owners Manual for Ventless Downdraft Induction Range Top
6
RISK OF INJURY
Installation procedures must be performed by a qualified technician with full knowledge of all
applicable electrical codes. Failure can result in personal injury and property damage.
WARNING:
SLIP AND FALL HAZARD
DO NOT operate any grease-producing cooking procedures unless the grease cup is properly
installed. Oil will drip onto floor creating a slipping hazard.
WARNING:
DO NOT attempt to wash the HEPA / CHARCOAL filter pack or pre-filter. Water absorption will
render the filter unusable. Use of a wet or clogged filter will cause the ventilator system to shut
down. Use only new, clean Wells® Authorized Service Parts. Keep spare filter packs on hand to
avoid disruptions.
Service Department 1-800-264-7827.
Exposed surfaces can be hot to the touch and may cause burns. Allow unit to cool before cleaning
or servicing.
iv
UNPACKING & INSPECTION
Carefully remove the downdraft 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 any other documents packed with the appliance
before starting any installation. All documentation should remain with the equipment operator for
future reference. Write the model and serial number on page ii of this manual.
Read and understand all labels and diagrams attached to the downdraft.
Carefully account for all components and accessories before discarding packing materials.
COMPONENTS
Pre-Filter 1 ea.
Bae Filter 1 ea.
Filter pack 1 ea.
Grease cup 1 ea.
Induction drop-in unit 4 ea.
Sneeze Guard 1 ea.
LED light 1 ea.
Back kick plate 1 ea.
Front kick plate 1 ea.
Side kick plate 2 ea.
SITE PREPARATION
1. Provide clearance around installation site to safely place equipment into its final position.
Consider general service and installation space when locating unit.
2. Thoroughly review the plans and specification of the project.
3. Determine the exact location in which the cooking downdraft will be installed and verify that
there are no interferences, which will prevent proper installation.
4. This unit is designed to sit on a permanent level floor, at no time should this unit be in operation
on a movable cart. Ensure the site is capable of supporting both the downdraft’s weight as well
as any cooking equipment.
5. Determine if adequate room is available to install the downdraft with proper clearance from
combustible material. IMC, NFPA96 and local authorities having jurisdiction call for a minimum
clearance (typically 18 inches) between the cooking hood(s) and building materials, which are
combustible. However, IMC and NFPA96 outline acceptable clearance reduction methods. It is
important to check with the local authority having jurisdiction to determine that the installation
method is satisfactory to meet their requirements prior to installing the equipment.

1
GENERAL INSTALLATION INFORMATION
The unit is shipped ready to be hardwired to an electrical box specified for its voltage and amp
draw. If improper electrical supply can not be determined through troubleshooting, contact a
qualified electrician prior to using the unit. Improper electrical installation can void the warranty.
Should you require assistance, contact your local authorized service agent for any service or
required maintenance.
Allow enough space around the induction unit for adequate ventilation and make certain the
cooling fan is not blocked. Additional space from extremely hot devices is recommended as this
unit’s intake air temperature cannot exceed 104° F (40° C). Doing so may result in damage to the
induction unit. Make certain this induction unit is not located near other appliances which may
produce grease vapor, such as fryers, griddles, etc.
Before using the induction unit for the first time, ensure to clean it properly. Refer to the Cleaning
section for cleaning instructions.
ELECTRICAL CONNECTION
Before making any electrical connections to this
unit, check that the power supply is adequate for
the voltage, amperage, phases, and requirements
stated on the rating plate. This equipment must
be installed and connected in accordance with all
applicable federal, state, province, and/or local
electrical codes having jurisdiction by a licensed
electrician. All electrical connections must be
made with COPPER WIRE ONLY in the correct
wire gauge for the application. The induction units
will utilize a terminal block ready to be connected
through a plug and receptacle-type connection or
direct flexible conduit. Do not use rigid conduit to
connect to the supply. ALLOW ENOUGH SLACK in
the wiring to allow for equipment to be moved during installation or any required maintenance and
servicing. Be absolutely certain that the ground connection for the receptacles is properly wired.
Do not connect equipment to power without proper ground connections. Improper grounding
may result in a void to warranty, personal injury, or fatality.
DO NOT CUT OR REMOVE THE
PLUG OR GROUNDING PRONG
FROM THE PLUG ON THE
INDUCTION UNITS.
CONNECT/PLUG UNIT INTO
DEDICATED AC LINE ONLY
SPECIFIED ON THE DATA PLATE
OF THE UNIT.
MAKE CERTAIN THE UNIT IS
POWERED OFF AND UNPLUGGED
PRIOR TO ANY REPAIRS OR
MOVEMENT. ALL REPAIRS SHOULD
BE PERFORMED BY AUTHORIZED
SERVICE TECHNICIANS ONLY.
DO NOT HOSE DOWN
THE UNIT OR THE TABLE/
COUNTER IF THE UNIT IS ON
THE TABLE/COUNTER.
DO NOT IMMERSE OR LET
THE UNIT STAND IN WATER.
KEEP AWAY FROM RUNNING
WATER.
WARNING: Do Not connect
to a circuit operating at more
than 150 volts to ground.
BLACK
RED
WHITE
GREEN
OR BARE
COPPER
BLACK
RED
WHITE
GREEN
RECEPTACLES
MAIN CONTACTOR
L1
L2
N
MAIN SUPPLY
SUPPLY CONNECTION DIAGRAM

Owners Manual for Ventless Downdraft Induction Range Top
2
OPERATION
CERTAIN SURFACES ARE EXTREMELY HOT
DURING OPERATION AND CARE SHOULD
BE TAKEN WHILE USING THIS UNIT.
DO NOT LEAVE THE UNIT IN OPERATION
WITHOUT AN ATTENDANT.
DO NOT LEAVE THE UNIT ON DURING IDLE
PERIODS.
DO NOT CYCLE THE POWER QUICKLY ON
AND OFF AS THIS MAY CAUSE DAMAGE
TO THE UNIT OVER TIME.
MAKE CERTAIN TO READ ALL
INSTRUCTIONS AND WARNINGS
CONTAINED WITHIN THIS MANUAL IN
FULL, PRIOR TO USE.
KEEP PAPER AND OTHER MATERIALS
THAT CAN BLOCK THE FAN AWAY FROM
THE BOTTOM OF THE UNIT.
DO NOT USE COARSE SPONGES/PADS
WHICH WILL SCRATCH THE FINISH.
DO NOT USE CAUSTIC CLEANERS,
DEGREASERS, FLAMMABLE CLEANERS,
OR ANY OTHER CLEANER WHICH CAN
DAMAGE THE COOKING AREA SURFACE.
DO NOT IMMERSE THE UNIT IN WATER.
DO NOT ALLOW ANY CLEANER OR
LIQUID TO COLLECT ON THE TOP OF
THE UNIT.
DO NOT HOSE DOWN THE UNIT OR
THE TABLE/COUNTER THE UNIT IS
MOUNTED IN.
CLEANING & MAINTENANCE
CLEANING PROCEDURE: INDUCTION
Preventive maintenance consists of the following
recommended cleaning procedures. To keep your
unit in its best operating condition, these steps
should be performed on a daily basis as required.
The cooking area must be kept clean for the unit to
function properly.
i. Turn the unit off, turn off the power breaker from
the power source if removing it from the power
source, and allow it to cool completely.
ii. Once cool, begin by using a soft, slightly damp
sponge to wipe away and spilled food and debris.
If there is any hardened residue, use a scraper or
cleaning pad made specifically for glass/ceramic
surfaces and an appropriate glass/ceramic
cooktop cleaning solution.
iii. Wipe down the surface with glass/ceramic
cooktop cleaner and a soft cloth. A small amount
of vinegar can be used to clean away water spots
and light stains.
iv. Use a soft, dry cloth to wipe down the surface and
remove any remaining cleaner/liquid.
v. While cleaning the unit, make certain to examine
the screen on the fresh air intake located on the
bottom of the unit and clean as needed. This must
stay clear of blockages in order for the unit to
function properly.
vi. Once the unit is clean and has dried, it is ready to
power back on and begin using.
DAILY USE
i. Turn the power switch on.
ii. Place an appropriate pot or pan onto the cooking
zone. [an error code will appear if there is no pan
or an incorrect type of pan placed on the unit]
iii. Adjust the power/temp slowly to the desired heat
setting while making certain that there are no
error codes present. If there are any error codes,
record the code[s], immediately turn the unit to
the off position and remove power to the unit,
and consult the troubleshooting section of the
manual before proceeding.
iv. Once done cooking, flip the power switch to the
off position and at the end of day.
MAINTENANCE
The unit should be inspected by an authorized agent
at least once per year. Anything other than standard
cleaning procedures should be performed by
authorized service agents only. The inside of this unit
has no user-serviceable parts other than the filters.

3
TROUBLESHOOTING
If the unit does not initially power on, make certain the unit is connected properly and that the power
supply is the correct voltage and amperage to support operation of the unit. If problems occur with
no code displayed, please contact an authorized service agent or technical service.
ERROR CODES FOR ADCRAFT CONTROL
Error
Message Cause Solution
E01
The cooker has become too hot
(e.g. due to blocked ventilation
slots).
Clear vents, let cooker cool
down before restarting. If error
message continues contact
retailer.
E02
Overheating-protection was
activated and the cooker has
switched off.
Remove cookware from cooker
and let unit cool down before
restarting. Also please check
weather the pan is suitable for
induction cooker
E03 Temporary voltage overload Let cooker cool down before
restarting.
CLEANING & MAINTENANCE
CLEANING PROCEDURE DOWNDRAFT
FREQUENCY: Weekly
TOOLS: Mild detergent, clean non-abra-
sive towels
NOTE: Ventilator section to be cleaned in
conjunction with cooking appliance. Refer
to appliance user instructions for cleaning
procedure.
1. TURN POWER SWITCH TO OFF.
2. Remove BAFFLE FILTERS and GREASE CUP.
3. Empty GREASE CUP into an appropriate
grease collection receptacle.
4. Clean BAFFLE FILTERS and GREASE CUP in
a sink or dishwasher using mild detergent and
warm water.
5. Dry components with a clean non-abrasive
cloth. Reinstall BAFFLE FILTERS and GREASE
CUP(s) in ventilator.
6. Wipe exterior & interior surfaces of downdraft
with a clean cloth moistened with warm water
and mild detergent. Rinse by wiping with a
clean cloth moistened with warm water.
7. Reconnect unit to electric power.
Procedure is complete
CLEANING & MAINTENANCE
CLEANING PROCEDURE DOWNDRAFT
FREQUENCY: Monthly
TOOLS: Mild detergent, clean non-abrasive
towels
NOTE: Ventilator section to be cleaned in conjunction
with cooking appliance. Refer to appliance user
instructions for cleaning procedure.
1. TURN POWER SWITCH TO OFF.
2. Remove BAFFLE FILTERS, GREASE CUP, and all
FILTER PACK.
3. Wipe interior of ventilator with a clean cloth
moistened with warm water and mild detergent.
Rinse by wiping with a clean cloth moistened with
warm water. DO NOT clean by spraying.
4. Dry ventilator thoroughly with a clean non-abrasive
cloth. Reinstall all FILTERS, BAFFLE FILTERS,
GREASE CUP.
5. Reconnect unit to electric power.
Procedure is complete

Owners Manual for Ventless Downdraft Induction Range Top
4
INDUCTION FEATURES & OPERATING CONTROLS
If the unit does not initially power on, make certain the unit is plugged in properly and that the power
supply is the correct voltage and amperage to support operation of the unit. If problems occur with
no code displayed, please contact an authorized service agent or technical service.
INDUCTION FEATURES & OPERATING CONTROLS
ADCRAFT CONTROLLER
If the unit does not initially power on, make certain the unit is plugged in
properly and that the power supply is the correct voltage and amperage
to support operation of the unit. If problems occur with no code displayed,
please contact an authorized service agent or technical service.
1. Place suitable cookware onto the plate of induction cooker. Turn
the power switch on, the power light switch will shine, indicating the
power is connected normally.
2. Pressing the ON/OFF, the power light will shine when the unit is ON. The induction cooker will
automatically power off if there is no operation within 2 hours.
3. Pressing function, the heating light will shine indicating that the induction cooker is entering the
heating state; the default power of heating is 1200W. Adjust the power rate from level 500W-1800W
by pressing the − or + symbols while in the power function.
4. Pressing the TEMP, the keep temp light will shine, indicating the induction cooker is entering the keep
temperature state, the default temperature is 430°F. Adjust the temperature from 140°F to 460°F by
pressing the − or + symbols while in the TEMP function.
5. Adjust the timer from 0 - 170 minutes by pressing the − or + symbols while in the time function.
6. Press the ON/OFF at any time to turn off the power, stopping the cooker immediately.
COOKTEK CONTROLLER
If the unit does not initially power on, make certain the unit is plugged
in properly and that the power supply is the correct voltage and
amperage to support operation of the unit. If problems occur with no
code displayed, please contact an authorized service agent or technical
service.
1. Place suitable cookware onto the plate of induction cooker. Turn
the power switch on, the power light switch will shine, indicating the
power is connected normally.
2. Turn the cooktop “ON” by turning the control knob to the right.
3. Place cookware containing ingredients on the cooktop.
4. Depress the Temperature Mode button.
5. Turn the control knob until the desired cooking temperature appears on the LED Display. The temperature
displayed will change from the set temperature to the measured temperature 3 seconds after the
control knob is moved. The LED will show the measured temperature until the desired temperature is
achieved.
6. To turn the cooktop off, turn the control knob to the far left until it “clicks” and the LED display is no
longer illuminated.
R
NOTES:
UNLESS NOTED, HOLE DIAMETER TOLERANCE +/- 0.005 1.
DEBURR SHARP EDGES THAT USER MAY CONTACT 2.
DURING INSTALLATION, USE, CLEANING, OR
MAINTENANCE.
ALL DIMENSIONS TO THE OUTSIDE OF PART AS SHOWN 3.
UNLESS OTHERWISE SPECIFIED.
REV. DATE/ECO DESCRIPTION OF CHANGE DR
THIS DRAWING CONTAINS INFORMATION
CONFIDENTIAL TO STAR MFG. INT'L INC.
NO REPRODUCTION OR DISCLOSURE
OF ITS CONTENTS IS PERMITTED
WITHOUT APPROVAL OF STAR MFG.
INT'L INC. ENGINEERING DEPARTMENT
T
OLERANCE: UNLESS NOTED: .x .06 .xx .03 .xxx ± .015
FLAT PATTERN .xxx
.005 ANGLES 1
PART NO.
MODEL NO.
DESCRIPTION
MATERIAL
FINISH
DR
: CK. DATE:
2N-Z23153
WDDI-35GM
INDUCTION UNIT CONTROL COOKTECH
-
12/12/19
DIG
SHEET 1OF1
STAR MANUFACTURING
INTERNATIONAL INC.
265 HOBSON STREET
SMITHVILLE, TN.37166, USA
Solidworks- File Location
XXX
NOTED

5
PRECAUTIONS AND GENERAL DOWNDRAFT INFORMATION
This ventilator downdraft is part of an engineered system and is intended for use in commercial
establishments only.
This ventilator is intended for commercial establishments for use in the preparation 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.
This ventilator downdraft system is designed to reduce odor emissions, but will not completely eliminate
all cooking odors. Air exchange rates at the installation site must comply with the requirements of
the local jurisdictional authority. To ensure that odors do not accumulate, recommended minimum air
exchange is 200 cfm per linear foot of hood into and out of the site.
This unit is intended for use with light- and medium duty electric cooking appliances only. Cooking
appliances placed with this ventilator must comply with the restrictions set forth in the Installation
section of this manual.
Do not connect or energize this appliance until all installation instructions are read and understood.
Property damage or bodily injury may result if these instructions are not followed. Disconnect this
appliance from electrical power before performing any maintenance or servicing.
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.
This appliance is not jet steam 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. Do not attempt to wash filter packs. Water will cause their immediate failure and disable the
ventilator.
Exposed surfaces of this appliance can be hot to the touch and may cause burns.
Avoid storing flammable or combustible materials in, on or near the ventilator or associated cooking
appliance.
The technical content of this manual, including any wiring diagrams, schematics, parts breakdown
illustrations and/or adjustment procedures, is intended for use by qualified technical personnel.
Any procedure which requires the use of tools must be performed by a qualified technician.
All supplied instructions, diagrams, schematics, parts breakdown illustrations, notices and labels must
remain with the appliance if the unit 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.
IMPORTANT
The ventilator is disabled when the filters are plugged to the point of insucient airflow for proper
operation. Also, power to the cooking appliances is interrupted if any filters or service panels are
removed.
It is the responsibility of the store management to maintain sucient spares of filter packs to avoid
prolonged shutdown due to a dirty or clogged filter pack. Filter packs cannot be cleaned.
Wells Manufacturing assumes no liability for loss of business due to a filter related shutdown. Spare
filters can be purchased from any authorized Wells servicer or calling Wells

Owners Manual for Ventless Downdraft Induction Range Top
6
SNEEZE GUARD INSTALLATION
R
.250
GLASS THICKNESS
TYP
34.88
20.53
23.79
18.37
7
8
11
4
4
2
31
13
6
9
7
4
13
23 110
4
12
11
7
8
7
13
8
12
8
8
2
1
4
3
10
8
8
5
11
9
6
4
10
REV. DATE/ECO DESCRIPTION OF CHANGE DR
- 1/22/2021 NEW RELEASE, ECO# GGR
ITEM NO. PART NUMBER DESCRIPTION QTY.
1 2I-Z23298 RAIL, SIDE RIGHT SG 1
2
2I-Z23299 RAIL, SIDE LEFT 1
3
2I-Z23431 RAIL, REAR SG 1
4
2Q-Z23296 GLASS SIDE SG 2
5
2Q-Z23430 GLASS FRONT SG 1
6
2E-Z23303 LIGHT, LOW VOLTAGE 1
7
2C-6349
SCREW, #8 X 3/8 B THP STL NP 2
8
2C-8833
SCREW, 8-18 - 1/2 HEX HD STL NP 10
9 2E-Z23304 CORD, LIGHT POWER 1
10
N1-Z24049 SUPPORT,TOP,FRONT 2
11
N1-WL1050 ASSY,TOP,SNEEZE GUARD,35" 1
12
N1-WL1052 ASSY,SUPPORT,SNEEZE,RT 1
13
N1-WL1053 ASSY,SUPPORT,SNEEZE,LT 1
THIS DRAWING CONTAINS INFORMATION
CONFIDENTIAL TO STAR MFG. INT'L INC.
NO REPRODUCTION OR DISCLOSURE
OF ITS CONTENTS IS PERMITTED
WITHOUT APPROVAL OF STAR MFG.
INT'L INC. ENGINEERING DEPARTMENT
T
OLERANCE: UNLESS NOTED: .x .06 .xx .03 .xxx ± .015
FLAT PATTERN .xxx
.005 ANGLES 1
PART NO.
MODEL NO.
DESCRIPTION
MATERIAL
FINISH
DR
: CK.
DATE:
5N-35BSG
WDDI-35GM
ASSY,SNEEZE GUARD,35GM
12-23-20
GGR
SHEET OF
STAR MANUFACTURING
INTERNATIONAL INC.
265 HOBSON STREET
SMITHVILLE, TN.37166, USA
Solidworks- File Location
XXX
ITEM NO. PART NO. DESCRIPTION QT Y. MODEL
1 2I-Z23298 RAIL, SIDE RIGHT SG 1 ALL
2 2I-Z23299 RAIL, SIDE LEFT 1 ALL
32I-Z23300 RAIL, REAR SG 1 WDDI-31
2I-Z23431 WDDI-35
4 2Q-Z23296 GLASS SIDE SG 2 ALL
52Q-Z23295 GLASS FRONT SG 1 WDDI-31
2Q-Z23430 WDDI-35
6 2E-Z23303 LIGHT, LOW VOLTAGE 1 ALL
72C-6349 SCREW, #8 X 3/8 B THP STL NP 2 ALL
8 2C-8833 SCREW, 8-18 - 1/2 HEX HD STL NP 10 ALL
9 2E-Z23304 CORD, LIGHT POWER 1 ALL
10 N1-Z24049 SUPPORT,TOP,FRONT 2 ALL
11 N1-WL1051 ASSY,TOP,SNEEZE GUARD,35" 1 WDDI-31
N1-WL1050 WDDI-35
12 N1-WL1052 ASSY,SUPPORT,SNEEZE,RT 1 ALL
13 N1-WL1053 ASSY,SUPPORT,SNEEZE,LT 1 ALL
1. Install bottom rails starting with the rear one rst, aligning the holes in the rail with the pre-drilled holes on the table surface.
2. Install the side rails accordingly aligning them with the pre-drilled holes.
3. Place the glass sides (ITEM 4), and the glass front (ITEM 5) in the sneeze-guard rails.
4. Install top (ITEM 11) on to glass.
5. Install both top supports (ITEM 10) using screws (ITEM 8).
6. Run cord (ITEM 9) thru plastic bushing (ITEM 13) and down thru the plastic bushing on the left side of chassis top.
7. Install both supports (ITEM 12) & (ITEM 13) using screws (ITEM 7) to secure the top. Use screws (ITEM 8) to secure the bottom.
8. Add magnetic backed LED light bar (ITEM 6) under the top sneeze guard (ITEM 11).
R
.250
GLASS THICKNESS
TYP
34.88
20.53
23.79
18.37
7
8
11
4
4
2
31
13
6
9
7
4
13
23 110
4
12
11
7
8
7
13
8
12
8
8
2
1
4
3
10
8
8
5
11
9
6
4
10
REV. DATE/ECO DESCRIPTION OF CHANGE DR
- 1/22/2021 NEW RELEASE, ECO# GGR
ITEM NO. PART NUMBER DESCRIPTION QTY.
1 2I-Z23298 RAIL, SIDE RIGHT SG 1
2
2I-Z23299 RAIL, SIDE LEFT 1
3
2I-Z23431 RAIL, REAR SG 1
4
2Q-Z23296 GLASS SIDE SG 2
5
2Q-Z23430 GLASS FRONT SG 1
6
2E-Z23303 LIGHT, LOW VOLTAGE 1
7
2C-6349 SCREW, #8 X 3/8 B THP STL NP
2
8
2C-8833
SCREW, 8-18 - 1/2 HEX HD STL NP 10
9 2E-Z23304 CORD, LIGHT POWER 1
10
N1-Z24049 SUPPORT,TOP,FRONT 2
11
N1-WL1050 ASSY,TOP,SNEEZE GUARD,35" 1
12
N1-WL1052 ASSY,SUPPORT,SNEEZE,RT 1
13
N1-WL1053 ASSY,SUPPORT,SNEEZE,LT 1
THIS DRAWING CONTAINS INFORMATION
CONFIDENTIAL TO STAR MFG. INT'L INC.
NO REPRODUCTION OR DISCLOSURE
OF ITS CONTENTS IS PERMITTED
WITHOUT APPROVAL OF STAR MFG.
INT'L INC. ENGINEERING DEPARTMENT
T
OLERANCE: UNLESS NOTED: .x .06 .xx .03 .xxx ± .015
FLAT PATTERN .xxx
.005 ANGLES 1
PART NO.
MODEL NO.
DESCRIPTION
MATERIAL
FINISH
DR
: CK.
DATE:
5N-35BSG
WDDI-35GM
ASSY,SNEEZE GUARD,35GM
12-23-20
GGR
SHEET OF
STAR MANUFACTURING
INTERNATIONAL INC.
265 HOBSON STREET
SMITHVILLE, TN.37166, USA
Solidworks- File Location
XXX
Recommended to be assembled by two people.
For lighting connection see wiring diagram (P/N: 2M-Z23838)
or reference manual page 13.

7
MECHANICAL INSTALLATION
The following is a step-by-step procedure for installation of the Recirculating Hoods.
1. Un-crate the downdraft unit, being very careful
not to dent or scratch the outer surface.
2. NOTE: Report any damage to the delivering
freight carrier and file a claim if appropriate.
Check the nameplate on the equipment to make
certain it meets the specifications provided by
the architect and or engineer. If discrepancies
exist, notify the manufacturer immediately.
3. It’s important that you have read and understand
“Site Preparation” before continuing with the
installation of the hood.
4. Determine the exact location of the downdraft
unit.
5. Place the unit into position.
6. Complete the assembly of the sneeze guard, on page 6,
to the top of main unit.
7. Install the side kick plates, with provided screws, to the
main body of the unit.
8. Install the front and rear kick plates, with provided screws,
to the side kick plate.
9. Install the inlet filter by placing it in the filter well.
10. Install the inlet cover by placing it over the inlet filter.
REAR KICK PLATE
SIDE KICK PLATE
FRONT KICK PLATE
INLET FILTER
INLET COVER
ASSEMBLED
SNEEZE GUARD
REAR KICK PLATE
SIDE KICK PLATE
FRONT KICK PLATE
INLET FILTER
INLET COVER
ASSEMBLED
SNEEZE GUARD

Owners Manual for Ventless Downdraft Induction Range Top
8
ELECTRICAL INSTALLATION
Refer to the nameplate on the downdraft. Verify ELECTRICAL SERVICE POWER. Voltage and phase must
match the nameplate specifications, and available electrical service amperage must meet or exceed the listed
amperage. Refer to specifications listed on the name plate.
The ground lug of this ventilator must be connected to a suitable building ground.
Open the back panel to access the downdraft terminal block. Wire the electrical power to the terminal block
per the wiring diagram.
NOTE: It is the responsibility of the electrical contractor to provide suitable wiring, flexible or rigid conduit,
and an appropriate strain relief.
Electrical Connection
NOTE: The downdraft requires a single phase (1ph), 208 - 240 volt, 30 amp supply. When connecting line
voltage to the unit’s terminal block, use a minimum of #10 gage copper wire only, suitable for 194°F (90°C)
ambient temperature.
Appliance Connections
All downdraft induction units are required to be interlocked with the downdraft cut-off circuit/power switch.
These connections provide an automatic shutdown of the induction units when the downdraft is OFF, or in the
event of a malfunction.

9
FILTER INSTALLATION
Note air flow direction arrow on filter pack. Remove old filter pack and slide new
filter pack fully into the appropriate slot. Verify that the airflow arrow points toward
the fan.
The bae filter is reusable and should be cleaned at least weekly. Change the
pre-filter and Hepa filter pack as indicated on the front panel. These filters
are disposable and cannot be reused. All filters are accessible through the
front service door.
Use only genuine Wells replacement parts and filters, call [phone]
or your authorized Wells service agent. Parts supplied by others will
void your warranty and may not provide safe operation.
BAFFLE FILTER and GREASE CUP INSTALLATION
1. Install bae filter from front. Engage the bae filter in the
retainer slot. Push up until the bae filter bottom clears the
lower lip of the retainer, then lower the bae filter into the bottom retainer.
2. Install GREASE CUP below the bae filter underneath the unit aligned with the drain hose.
Note: Failure to install the GREASE CUP will allow grease and moisture from the BAFFLE FILTER to
drop onto floor surfaces, creating both a SAFETY HAZARD and a SLIP HAZARD.
The BAFFLE FILTERS, PRE-FILTERS and FILTER PACK actuate position switches when they are
properly positioned. The filters must be properly installed for the induction units contactor to be
energized.
The filter access door actuates a switch and must be closed for the unit to energize.
WARNING
SLIP AND FALL HAZARD
DO NOT operate any grease-producing cooking equipment unless the grease cup is properly installed.
Oil will drip onto floor creating a slipping hazard.
CAUTION
BURN HAZARD
DO NOT operate any cooking appliance unless the grease cup is installed. Moisture dripping onto hot
surfaces, oil or grease can cause splattering.
WARNING
CLEAN FILTERS
DO NOT attempt to wash the HEPA / charcoal filter pack or pre-filter. Water absorption will render
the filter unusable. Use of a wet or clogged filter will cause the ventilation system to shut down. Use
only clean Wells®Authorized Service Parts. Keep spare filter packs on hand to avoid disruptions.
Wells Parts Department [phone].
REAR KICK PLATE
SIDE KICK PLATE
FRONT KICK PLATE
INLET FILTER
INLET COVER
ASSEMBLED
SNEEZE GUARD

Owners Manual for Ventless Downdraft Induction Range Top
10
Control Panel
NOTE: Cooking appliances must be operated in accordance with the manufacturer’s instructions.
During normal operation, the illuminated power switch will be the only light on the control panel
that will be ON.
If the CHECK FILTERS light illuminates, check BAFFLE FILTERS, PREFILTERS, and the HEPA AIR
FILTERS for proper installation.
If the REPLACE PRE-FILTERS light illuminates .. Replace the Pre-filters.
If the REPLACE FILTER PACK light illuminates, replace the FILTER PACK.
NOTE: the REPLACE FILTERS PACK light is a warning that filter pack is nearing the end of its
service life. The ventilator will continue to operate for a period of time after the REPLACE FILTER
PACK LIGHT turns ON to allow continued operation through a peak period. However, filter pack
must be replaced within a short time period or it will clog, disabling the ventilator and appliances.
If the SERVICE REQUIRED light illuminates, the filter pack is restricted to the point of insucient
airflow for proper operation and the Ventilator will shut down until the underlying clogged filter
situation has been corrected. Replace clogged item with a fresh filter to correct the condition.
Reset the unit by turning VENTILATOR POWER SWITCH to OFF,
then back to ON.
A failure of incoming electric power will cause a shut down of the unit. Reset the unit by turning
VENTILATOR POWER SWITCH to OFF, then back to ON.
Operation Lights
There is one equipment light that provides illumination of the working area. This light is controlled
by the main power switch.
SERVICE
REQUIRED
REPLACE
FILTER PACK
REPLACE
PREFILTER
CHECK
FILTER
ON
POWER
OFF
IL2736

11
EXPLODED VIEW WITH PARTS LIST
REAR KICK PLATE
SIDE KICK PLATE
FRONT KICK PLATE
INLET FILTER
INLET COVER
ASSEMBLED
SNEEZE GUARD
ITEM NO. PART NO. DESCRIPTION QT Y. MODEL
1 2E-Z23023 STRAIGHT BLADE SINGLE FEMALE RECP 4 ALL
2 2E-Z23024 RECEPTICAL COVER 4 ALL
3 2E-Z23134 LED DRIVER 30 WATTS 1 ALL
4 2E-Z24111 VAC SWITCH, 1.31 WC 2 ALL
5 2E-Z15352 PRESSURE SWITCH 1 ALL
6 2E-37465 TERM BLOCK 3POLE 85AMP 1 ALL
7 2E-Z14960 BODY,CONTACTOR 1 ALL
8 2E-Z24169 POWER SUPPLY, 24 VDC 1 ALL
9 2E-Z24102 END CLAMP, DIST BLOCK 4 ALL
10 2J-Z24013 CONTROL, RED LION, CUB5TCBO 4 ALL
11 2N-Z22993 INDUCTION UNIT 1800W COOKTECH &
INDUCTION UNIT CONTROL COOKTECH 4WDDI-31
2N-Z23153 WDDI-35
12 2E-Z12427 SWITCH, SPDT (DOOR) 3 ALL
13 2E-305295 SWITCH ROCKER 1 ALL
14 2E-300407 SWITCH MANUAL ADVANCE 1 ALL
15 2U-302584 BLOWER ASSEMBLY UNIVERSAL HD 1 ALL
16 2E-Z24101 DISTRIBUTION BLOCK,10/6X4 5 ALL
17 2P-Z17415 TIMER CUBE/RELAY 1 ALL

Owners Manual for Ventless Downdraft Induction Range Top
12
WIRING DIAGRAM:
A2
A2
A1 A1
T3 T2 T1
L3
L1
L2
CONTACTOR
OFF
ON
NO
COM
NC
NO
COM
NC
NO
COM
NC
NO
COM
NC
NO
COM
NO
COM
3
21
TC+
TC-
COM
NO
NC
+
TC+
TC-
COM
NO
NC
+
TC+
TC-
COM
NO
NC
+
TC+
TC-
COM
NO
NC
+
NO
COM
R
NOTES:
UNLESS NOTED, HOLE DIAMETER TOLERANCE +/- 0.005
1.
DEBURR SHARP EDGES THAT USER MAY CONTACT
2.
DURING INSTALLATION, USE, CLEANING, OR MAINTENANCE. ALL DIMENSIONS TO THE OUTSIDE OF PART AS SHOWN
3.
UNLESS OTHERWISE SPECIFIED.
N
L2
L1
GND
CUSTOMER
CONNECTION
M
SWITCH
BLOWER
MOTOR
TERMINAL
BLOCK
OUTLET
OUTLET OUTLET
OUTLET
FRONT DOOR
SWITCH
HEPA FILTER
SWITCH
PRE-FILTER
SWITCH
BAFFLE
SWITCH
TIMER
PRE-FILTER
SWITCH
REPLACE FILTER
PACK SWITCH
SHUT DOWN
SWITCH
GND- GRN GND- GRN
(29) WHT (30) WHT
(11) BLK (12) BLK
(9) RED
(10) RED
(38) BLK (39) BLK
(40) BLK
(37) BLK
(34) RED
(35) RED
(36) RED
(33) RED
(21) BLK
(32) BLK
(32) BLK
(41) BLK
(31) BLK
(21) BLK
(20) BLK (31) BLK
(21) BLK (37) BLK
(5) BLK
(29) WHT
(30) WHT
(10) RED
(9) RED
(30) WHT
(14) BLK
(15) RED
(4) RED
(19) BLK
(3) BLK
(14) BLK
(15) RED
(13) BLK
(44) BLK
(2) RED
(43) RED
(45) WHT
(43) RED
(44) BLK
(17) RED
(16) BLK
(2) RED
(1) BLK (3) BLK
(4) RED
GND-GRN GND-GRN
GRN
(45) WHT
REPLACE FILTER
REPLACE PRE-FILTER
CHECK FILTER
SERVICE REQ.
LED LIGHT
TRANSFORMER
OPTIONAL LIGHT
OPTIONAL RED LION CONTROL
SENSOR
YEL
REDREDREDRED
YEL YEL YEL
SENSORSENSORSENSOR
(26) BLK
(23) WHT
(22) BLK
(24) RED
(28) BLK
(25) WHT/
BLK STRIPE
(25) WHT/
BLK STRIPE
(25) WHT/
BLK STRIPE
(24) RED
(28) BLK(28) BLK
(28) BLK
(22) BLK
(23) WHT
(24) RED(24) RED
(26) BLK
AC/DC
POWER SUPPLY
(8) RED
(8) RED
(13) BLK
(7) RED
(5) BLK
N
T1 T2
L2 L1
BLACK TAPE
BLACK TAPE
OUTPUT
VDC
INPUT
VAC
-
+
L
N
WHT WHT
WHT
NO
COM
NC
1 2 3 4
(13) BLK
ROUTING #13 WIRE WHEN
RED LION CONTROL NOT USED
(17) RED
(16) BLK
REV.
DATE/ECO
DESCRIPTION OF CHANGE
DR
-
8/5/21
NEW RELEASE, ECN#18954
GGR
A
4/7/2022
Switched L1 and L2 on Terminal Block
GGR
THIS DRAWING CONTAINS INFORMATION
CONFIDENTIAL TO STAR MFG. INT'L INC.
NO REPRODUCTION OR DISCLOSURE
OF ITS CONTENTS IS PERMITTED
WITHOUT
APPROVAL OF STAR MFG.
INT'L INC. ENGINEERING DEPARTMENT
T
OLERANCE: UNLESS NOTED: .x
.06 .xx
.03 .xxx ± .015
FLAT PATTERN .xxx
.005
ANGLES
1
PART NO.
MODEL NO.
DESCRIPTION
MATERIAL
FINISH
DR
:
CK.
DATE:
WD-Z23838
WDDI
WIRE DIAGRAM, WDDI
12-21-20
GGR
SHEET 1OF1
STAR MANUFACTURING
INTERNATIONAL INC.
265 HOBSON STREET
SMITHVILLE, TN.37166, USA
Solidworks- File Location
XXX

13
R
PRE-FILTER SWITCH
(CHANGE PREFILTER LIGHT)
OPERATS AT NEGATIVE 0.98"WC
ACTIVATES AT NEGATIVE 1.55"WC
PRE-FILTER TAP
FROM PRE-FILTER TAP
TO PORT "B"
FROM BLOWER TAP
TO "LOW" PORT
HEPA FILTER
PRESSURE SWITCH
(CHANGE FILTER PACK LIGHT)
OPERATES @ NEGATIVE 0.37"WC
ACTUATES @ NEGATIVE 1.55"WC
SHUT DOWN
PRESSURE SWITCH
(SERVICE REQUIRED LIGHT)
OPERATES @ NEGATIVE 2.50"WC
ACTIVATES @ NEGATIVE 1.55"WC
FROM HEPA
TO "HIGH" PORT
FROM HEPA TAP
TO PORT "A"
FROM PRE-FILTER TAP
TO PORT "A"
BLOWER MOTOR TAP
PRE-FILTER SWITCH (CHANGE PREFILTER LIGHT) OPERATS AT NEGATIVE 0.98"WC ACTIVATES AT NEGATIVE 1.55"WC
HEPA TAP
FROM HEPA TAP
TO "HIGH" PORT
FROM HEPA TAP
TO PORT "A"
FROM BLOWER TAP
TO "LOW" PORT
BLOWER MOTOR TAP
PRE-FILTER TAP
FROM PRE-FILTER TAP
TO PORT "B"
FROM PRE-FILTER TAP
TO PORT "A"
HEPA FILTER SWITCH
(CHANGE FILTER LIGHT)
OPERATES @ NEGATIVE 0.37"WC
ACTIVATES @ 1.55"WC
SHUT DOWN PRESSURE SWITCH
(SERVICE REQUIRED LIGHT)
OPERATES @ NEGATIVE 2.50"WC
ACTIVATES @ NEGATIVE 1.55"WC
NOTES:
UNLESS NOTED, HOLE DIAMETER TOLERANCE +/- 0.005
1.
DEBURR SHARP EDGES THAT USER MAY CONTACT
2.
DURING INSTALLATION, USE, CLEANING, OR MAINTENANCE. ALL DIMENSIONS TO THE OUTSIDE OF PART AS SHOWN
3.
UNLESS OTHERWISE SPECIFIED.
REV.
DATE/ECO
DESCRIPTION OF CHANGE
DR
-
2/3/2021
NEW RELEASE, ECO#
GGR
THIS DRAWING CONTAINS INFORMATION
CONFIDENTIAL TO STAR MFG. INT'L INC.
NO REPRODUCTION OR DISCLOSURE
OF ITS CONTENTS IS PERMITTED
WITHOUT
APPROVAL OF STAR MFG.
INT'L INC. ENGINEERING DEPARTMENT
T
OLERANCE: UNLESS NOTED: .x
.06 .xx
.03 .xxx ± .015
FLAT PATTERN .xxx
.005
ANGLES
1
PART NO.
MODEL NO.
DESCRIPTION
MATERIAL
FINISH
DR
:
CK.
DATE: 2-3-2021
5N-SK2988
WDDI HOSE ROUTING
GGR
SHEET 1OF1
STAR MANUFACTURING
INTERNATIONAL INC.
265 HOBSON STREET
SMITHVILLE, TN.37166, USA
Solidworks- File Location
XXX
HOSE ROUTING:

STAR MANUFACTURING INTERNATIONAL INC.
Star - Holman - Lang - Wells - Toastmaster
265 Hobson Street, Smithville, TN 37166 U.S.A
Telephone [phone] • Fax [phone]
www.wells-mfg.com