Wells WV-FGRW Service Manual

WELLS BLOOMFIELD, LLC

2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439

telephone: 775-689-5707

fax: 775-689-5976

www .wellsbloomfield.com

SUPPLEMENTAL

SERVICE

INSTRUCTIONS

WV-FG

WV-FGRW

and

507

WV-FGRWT

ELECTRIC

FRYER/GRIDDLE

with

VENTLESS

HOOD

SYSTEM

IMPORT ANT: WELLS BLOOMFIELD, LLC PROPRIETARY INFORMATION.

DISSEMINATION OF THIS INFORMATION TO ANYONE OTHER THAN

WELLS AUTHORIZED SERVICE AGENTS IS STRICTLY PROHIBITED.

TECHNICAL CONTENT OF THIS MANUAL IS DESIGNED FOR

USE BY QUALIFIED PROFESSI O NAL TECHNICIANS ONLY.

PRINT ED IN UNIT ED STATES OF AMERICA

p/n SV507 Rev.(-) S507 080512 cps

PRECAUTIONS AND GENERAL INFORMATION

GENERAL

WARNING:

RISK OF INJURY

Installation procedures must be performed by a qualified technician with full knowledge of all applicable electrical and plumbing codes. Failure can result in personal injury and

property damage

WARNING:

ELECTRIC

All servicing requiring access to non-insulated electrical components must be performed by a qualified technician. Some procedures involve exposed live circuits. Use all due caution to avoid contact with live electric circuits. Failure to follow this warning can result in severe electrical shock.

SHOCK HAZARD

CAUTION:

RISK OF DAMAGE

DO NOT connect or energize this appliance until all installation instructions are

This appliance is intended for use in commercial establishments only.

This appliance is intended No other use is agents.

recommended or authorized by the manufacturer or its

to prepare food for human consumption.

Operators of this appliance must be familiar with the appliance use, limitations and associated restrictions. Operating instructions must be read and understood by all persons using or installing this appliance.

Cleanliness of this appliance is essential to good sanitation. Read and follow all included cleaning instructions and schedules to ensure the safety of the food product.

Disconnect this appliance from electrical power before performing any maintenance or servicing.

DO NOT splash or pour water on, in or over any controls, control panel or wiring.

The technical content of this manual, including any wiring diagrams, schematics, parts breakdown illustrations and/or adjustment procedures, is intended for use by qualified technical personnel.

Any procedure which requires the use of tools must be performed by a qualified technician. All service to the fire suppression system must be performed by an authorized Ansul® agency.

This appliance is made in the USA. Unless otherwise noted, this appliance has American sizes on all hardware.

IMPORTANT INSTALLATION NOTE:

6” clearance is required from back and sides of the appliance to any combustible or non-combustible surface.

This installation requires a minimum ceiling height of 96" in order to maintain adequate airflow.

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read and followed. Damage to the appliance will result if these instructions are not

followed

TABLE OF CONTENTS

GENERAL Precautions & General Information …………….………… xi

Specifications ..……………………………...................….. 1

Features & Operating Controls ……………………………. 2 VENTILATOR HOOD SECTION

Filter Arrangement .......................................................... 8

Service Indicator Lights .…….......................................… 9

Operational Notes ........................................................... 10

Filter System ................................................................... 12

Vacuum System .............................................................. 13

Ansul® System ............................................................... 14

Troubleshooting Suggestions ……………………………… 16 GRIDDLE SECTION

Operational Notes ............................................................. 18

Element Clamping Diagram ............................................. 19

Troubleshooting Suggestions ........................................... 19

FRYER SECTION

Operational Notes ........................................................... 20

Servicing Instructions ...................................................... 22

Troubleshooting Suggestions ......................................... 25

DRAWER WARMER SECTION

Operational Notes ............................................................. 26

RWT-Style Controller ....................................................... 27

Troubleshooting Suggestions ........................................... 28

EXPLODED VIEWS AND PARTS LISTS

Ansul® Components ........................................................ 29

Hood Section .................................................................... 30

Griddle Section ................................................................ 32

Drawer Warmer Section ................................................... 34

WIRING SCHEMATICS & DIAGRAMS OTHER DOCUMENTS

Material Safety Data Sheet—Ansulex Low pH ................. 42

Maintenance Logs ............................................................ 44

GENERAL

SPECIFICATIONS

3ø AMPS

1ø

AMPS

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MODEL

WV-FG NO

WVV-GRW

WV-FGRWT

DRAWER WARMER

YES

VOLTS

60Hz

208V 30 43 24 52 10,800 240V 26 40 24 49 11,700 208V 32 43 26 55 11,500 240V 28 40 27 53 12,600

L1 L2 L3

INTRODUCTION

This manual contains information needed to properly service and repair Wells Bloomfield free-standing electric fryer/griddle with ventless hood system.

This manual applies to the following Wells Manufacturing models: WV-FG, WV-FGRW, WV-FGRWT

For installation, operation and maintenance instructions, refer to Operation Manual p/n 304446.

WATTS

FEATURES & OPERATING CONTROLS

PULL

HANDLE

TOACTIVATE

FIRE

SUPPRESSION SYSTEM

INCASE OF

FIRE

VENTILATOR POWER

CHECKFILTERS

REPLACE PREFILTER

REPLACE FILTER

PACK

SERVICE REQUIRED

VCS 2000

VENTLESSCOOKINGSYSTEM

COCKED

FIRED

GENERAL

VENTILATOR CONTROL PANEL

see pages4&5

VENTILATOR POWERON

COOKING CONTROLS

see pages 4 thru 7

REPLACE

FILTERPACK

VCS 2000

a15

a10

ANSUL

a11

a31

4243

OPTIONAL

DRAWER WARMERS

seepage6&7

Fig. 1 Ventilator Section Operating Features & Controls

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VENTILATOR SECTION

FEATURES & OPERATING CONTROLS (continued)

ITEM

5. a6.

a10.

a11.

12.

a15.

16.

18.

19.

22.

28.

a31.

38.

41.

42.

43.

44.

53.

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56.

57.

58.

DESCRIPTION

NAMEPLATE

APPLIANCE LIGHT FIRE SUPPRESSION

AGENT TANK (1.5 gal.) ADJUSTABLE (FRONT) LEG RIGID (REAR) CASTER

MANUAL PULL STATION

FUSIBLE LINKS

LOWER REAR ACCESS PANEL

DISCHARGE NOZZLE GREASE BAFFLE PRE-FILTER ASSEMBLY

HI-EFFICIENCY/CHARCOAL FILTER PACK

GREASE DRIP TRAY VENTILATOR EXHAUST

DUCT STATUS INDICATOR

POWER CORD POWER CONTACTOR

BUILDING FIRE ALARM RELAY

GROUND LUG INTERLOCK TERMINAL

FILTER INTERLOCK SWITCHES

VENTILATOR FAN HOOD SIDE SHIELD SIDE SPACERS

COMMENT

Gives manufacturer, make and model description. Also lists voltage and amperage data.

ON when hood power switch is ON. Illuminates cooktop. Container for Ansulex™ Low-pH liquid fire suppression liquid.

Allows the unit to be leveled. Allows the unit to be easily positioned by lifting the front of the unit

slightly. Provides a means of manual activation of the fire suppression system.

PULL ONLY IN CASE OF FIRE! Designed to break at rated temperature. Breaking (i.e. fire on the

cooktop) activates fire suppression system. Should be replaced at least once per year.

Allows access to Ansul® fire suppression agent tank (a6) and controls also access to main power contactor (41).

Fire suppression media discharges here (2 places). Extracts and drains most grease and moisture from the air flow. Comprises the PRE-FILTER FRAME and a replaceable

PRE-FILTER. Stops larger particles of grease from reaching the FILTER PACK for reduced maintenance costs.

Stops most grease and smoke particles. Also assists in some cooking odor removal.

Collects grease/moisture dripping from grease baffle(16). Exit point for ventilator airflow - on top left rear of unit.

DO NOT BLOCK

Displays status of fire suppression system (COCKED - FIRED) If FIRED, a buzzer will sound continuously.

6’ cord and cap. Plug for NEMA 15-60R (receptacle by user). Energizes cooking appliances only while ventilator section is sensed

as operational. Reports fire alarm condition to building fire management system.

Ground wire of power cord connects here. Provides connection for shut-down control by building fire management

system. Proper installation of grease baffle and filter pack close these switches

in ventilator sensor circuit. Provides air movement for ventilation. Required on left and right sides of hood. Factory installed. Required to maintain 6" spacing from combustibles. Field installed.

GENERAL

FEATURES & OPERATING CONTROLS (continued)

VENTILATOR POWER

CHECK FILTERS

REPLACE PREFILTER

REPLACE FILTER

PACK

SERVICE REQUIRED

VCS 2000

VENTLESS COOKING SYSTEM

GENERAL

VENTILATOR POWER ON

V.01 V.02 V.03 V.04 V.05 V.06

Fig. 2 Ventilator Section Controls & Indicator Lights

F.03

F.04

F.05

ELEMENT HEAD

(SHOWN LOWERED)

REPLACE FILTER PACK

VCS 2000

F.06

F.12

F. 11

F.10

F.01

F.02

Fig. 3 Griddle & Warmer Drawer Operating Features & Controls

F.07

F.08

F.09

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FRYER (ELEMENT HEAD SHOWN RAISED)

FEATURES & OPERATING CONTROLS (continued)

ITEM

VENTILATOR SECTION CONTROLS

V.01

V.02 V.03

V.04*

V.05*

V.06*

* See PRECAUTIONS & GENERAL INFORMATION, pages 10 for special procedures regarding prefilters and filter packs.

FRYER SECTION

F.01 F.02 F.03 F.04

F.05 F.06

F.07

F.08

F.09

F.10 F.11 F.12

DESCRIPTION

POWER SWITCH

POWER ON INDICATOR CHECK FILTERS ALARM

INDICATOR REPLACE PREFILTER ALARM

INDICATOR REPLACE FILTER PACK ALARM

INDICATOR SERVICE REQUIRED ALARM

INDICATOR

FRYER POWER SWITCH FRYER POWER INDICATOR TEMPERATURE CONTROL TEMP INDICATOR

HI-LIMIT INDICATOR HI-LIMIT SAFETY RESET

HEATING ELEMENT

BASKET RACK

ELEMENT HEAD SUPPORT ROD

FRYPOT FRYPOT HANDLES FRYER BASKET

COMMENT

Energizes BLOWER MOTOR. If, after 10 seconds, proper conditions are met, cooking appliances are energized. APPLIANCE LIGHT is ON when POWER SWITCH is ON.

GREEN. Glows when POWER switch is ON. AMBER. Glows if one or more filters are out of position. Check all filters and

baffles for proper installation. AMBER. Glows when PREFILTER is approaching the end of its service life and

must soon be replaced. AMBER. Glows when FILTER PACK is approaching the end of its service life

and must soon be replaced. RED. Glows when PREFILTER and/or FILTER PACK has reached the end of

its service life and is too loaded to allow sufficient air flow. Filter MUST be replaced. Appliance is SHUT DOWN until expended filters are replaced.

Energizes FRYER SECTION. Glows when FRYER POWER SWITCH is ON. Thermostatic control of cooking oil temperature. Glows when HEATING ELEMENT is energized. Goes out when oil is up to

temperature. Glows if HI-LIMIT SAFETY is TRIPPED. Interrupts power to HEATING ELEMENT (red button pops out) if oil exceeds

safe temperature. Press red button to reset after oil has cooled. Heating portion of ELEMENT HEAD. Includes heating element, temperature

control thermobulb and hi-limit safety thermobulb. Hang FRYER BASKET here to load or drain. Also used as a handle to raise or

lower the ELEMENT HEAD. Spring loaded to automatically support the ELEMENT HEAD in the raised

position. In order to lower the ELEMENT HEAD the SUPPORT ROD must be released by rotating forward.

Holds cooking oil. Removable for cleaning. Used to hold FRYPOT when installing or removing from appliance. Holds product for loading / frying / draining.

GENERAL

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FEATURES & OPERATING CONTROLS (continued)

GENERAL

G.04

G.05

G.06

G.07

G.01

G.02

G.03

Fig. 4 Griddle Operating Features 7 Controls

GRIDDLE SECTION

FRYER

D.04

HUMITROL RACK

DRAWER INSERT PAN

D.03

D.02

D.01

D.06

D.05

OPTIONAL

DRAWER WARMER

SECTION

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RW-STYLE

RWT-STYLE

Fig. 3 Drawer Warmer Operating Features & Controls

FEATURES & OPERATING CONTROLS (continued)

ITEM

GRIDDLE SECTION

G.01

G.02 G.03 G.04 G.05

G.06 G.07

OPTIONAL DRAWER WARMER SECTION (RW-STYLE)

D.01

D.02 D.03

D.04

OPTIONAL DRAWER WARMER SECTION (RWT-STYLE)

D.04 D.05 D.06

DESCRIPTION

GRIDDLE TEMPERATURE CONTROL

GRIDDLE HEAT INDICATOR GREASE DRAWER COOKING SURFACE SPLATTER SHIELD

WASTE TROUGH WASTE CHUTE

TEMPERATURE CONTROL

POWER INDICATOR THERMOMETER

HUMIDITY CONTROL

HUMIDITY CONTROL CONTROL MODULE WARMER POWER SWITCH

COMMENT

Thermostatic control of griddle temperature

Glows when heating elements are energized. Collects cooking waste from GRIDDLE. Removable for cleaning. Heated portion for cooking food. Helps control grease splatter and contamination between the GRIDDLE and

FRYER sections. Scrape cooking waste to this area. Cooking waste moved into GREASE DRAWER thru this opening.

Thermostatic control of warmer cavity temperature. Each drawer is individually controlled.

Glows anytime the TEMPERATURE CONTROL calls for heat. Indicates temperature inside the warmer cavity

(Note: THERMOMETER must be ordered at time of original build.) Slide control of vents. OPEN for dry operation or CLOSE for humid operation.

Slide control of vents. OPEN for dry operation or CLOSE Adjust setpoint, view setpoint and actual temperatures. Energize individual drawer warmer.

GENERAL

for humid operation.

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HOOD OPERATION - FILTER ARRANGEMENT

VENTILATOR HOOD

FAN FILTER PACK

POSITION SWITCH

FILTER PACK SEAL

FILTER PACK

HOLD ER CLIP GREASE BAFFLE

AIR FLOW

POSITION SWITCH

HOLDER CLIP

CLIPS ONTO

LEDGE

WALL OF UNIT

PRE-FILTER ASSEMBLY

GREASE BAFFLE

GREASE TROUGH

PRE-FILTER NOTE : AIR FLOW AR ROW POINTS AWAY FROM IN STAL LER WH EN PROPERLY INSTALLED

FILTER HOOK

FILTER

E-FILTER

HOOK

FILTER RAIL

FILTER HANDLE

FILTER FRAME

NOTE: P RE-FILTER IS SENSED AS BEI NG IN POS ITI ON BY T H E PRESSUR E D R OP AC RO SS IT.

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HOOD OPERATION - SERVICE INDICATOR LIGHTS

Energizes the ventilator section. When all three

POWER SWITCH

filters are sensed as being in their proper position, and sufficient airflow is proven, the cooking appliance contactor is energized.

INDICATOR LIGHT (GREEN) VENTILATOR POWER ON

When lit, indicates that electrical power is available, and that the power switch (V.01) is turned ON.

VENTILATOR HOOD

When lit, indicates that the BAFFLE, PRE-FILTER

INDICATOR LIGHT (AMBER) CHECK FILTERS (POSITION)

and/or FILTER PACK is not in its proper position, or that an interlock switch is out of adjustment. Controlled by: Plunger switches position monitors for Filter Pack and Grease Baffle; and, vacuum switch S3 for Pre-Filter.

When lit, indicates that the pre-filter is approaching INDICATOR LIGHT (AMBER) REPLACE PREFILTER

the end of its service life.

ALWAYS HAVE A SPARE PRE-FILTER ON

HAND FOR QUICK REPLACEMENT.

Controlled by vacuum switch S1.

INDICATOR LIGHT (AMBER) REPLACE FILTER PACK

When lit, indicates that the filter pack is approaching

the end of its service life.

REPLACE FILTER PACK PROMPTLY!

Controlled by vacuum switch S2.

Indicates that either the pre-filter or the filter pack is

individually clogged (the individual indicator light

may be lit), or that the the airflow drop across both

filters is critical. As a cost saving measure, always

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INDICATOR LIGHT (RED) SERVICE

REQUIRED

change a dirty pre-filter first (when lights V.04 &

V.05 are not lit, and red light V.06 is on).

Note: Power to the cooking appliance will be

de-energized whenever this RED “SERVICE

REQUIRED” indicator light is lit. When lit, the air

flow is insufficient to meet appliance vapor capture

levels requirements.

Controlled by vacuum switch S4.

HOOD OPERATION - OPERATIONAL NOTES

WARNING:

FIRE AND HEALTH

DO NOT bypass or attempt to bypass the filter placement interlocks. Operating the

VENTILATOR HOOD

appliance without filters properly in place will compromise the fire protection and air filtration capabilities of this unit. Serious personal injury and/or substantial property damage may result.

NOTICE:

Operating without all filters properly in place, and/or operating with filter placement interlocks defeated will void the manufacturer’s warranty.

IMPORTANT: NEVER wash the PREFILTER or FILTER PACK.This will shut down the cooking appliance. (Red “SERVICE REQUIRED” light will turn ON).

HAZARDS

REPLACE PREFILTER and REPLACE FILTER PACK indicator lights provide a timely warning that a system shut-down is imminent. The actual time between the indicator light coming on and the loss of cooking appliance power will depend upon the cooking conditions.

Anytime a dirty PRE-FILTER is replaced, the system airflow will increase. If the condition of the FILTER PACK is marginal, the REPLACE FILTER PACK light could then come on. If this happens, a fresh FILTER PACK must be installed within a reasonably short time. Loss of airflow through the old filter pack will soon cause a system shut-down when the airflow falls below minimum vapor capture levels.

KEEP SPARE FILTER PACKS ON HAND. IMPORTANT: If you decide to “get the most” out of the old filter pack,

and continue to use it until a system shut-down happens, it is advisable to have a fresh filter pack readily at hand, and have someone available who is capable of replacing it. Otherwise, you may experience an extended down time, with consequent associated loss of business.

The manufacturer assumes no liability for loss of business due to a system shutdown caused by a dirty pre-filter and/or filter pack (i.e. red SERVICE REQUIRED light is on), when the user fails to have the proper replacement pre-filter and/or filter pack on hand.

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HOOD SECTION - OPERATIONAL NOTES (continued)

FOR VERTICAL

MOUNTING

THIS

SIDE UP

FIRE DAMPER

DAMPER SUPPORT

AIR FLOW

¬ ®

SHUTTER

FUSIBLE LINK 280ºF

ACCESS DOOR

THIS SIDE

THIS SIDE UP FOR HORIZONTAL MOUNTING

LABEL

VENTILATOR HOOD

FIRE DAMPER INSTRUCTIONS

1. The FIRE DAMPER is accessible by removing the TOP PANEL The FIRE DAMPER sets in the DAMPER SUPPORT and may be removed by lifting straight up.

2. The FIRE DAMPER normally needs no maintenance. If it becomes heavily contaminated with dust and/or grease, it must be replaced.

3. If the FIRE DAMPER malfunctions or if the fusible link releases, the manufacturer recommends that the entire FIRE DAMPER ASSEMBLY be replaced.

4. Reinstall the FIRE DAMPER with the “THIS SIDE UP FOR HORIZONTAL MOUNTING” arrow pointing away from the BLOWER.

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IMPORTANT:

Replace the entire fire damper assembly if the link trips, or if the damper mechanism becomes heavily contaminated with dust and/or grease.

While the fusible link alone may be replaced, once the damper has tripped it may no longer function reliably.

Contact factory for pricing and availability.

HOOD SECTION - FILTER SYSTEM

HOOD ASSEMBLY

(LOOKING UP)

VENTILATOR HOOD

FILTER PACK POSITION MONITOR

GREASE BAFFLE POSITION MONITOR

NOTE AIR FLOW ARROWS ON GREASE BAFFLE, PRE-FILTER AND FILTER PACK. INSTALL THESE COMPONENTS SUCH THAT ARROWS POINT TOWARD FAN

NOTE:

Change the pre-filter as soon as the "REPLACE PRE-FILTER" indicator glows in order to extend the service life of the filter pack.

NOTE:

The charcoal portion of the filter pack is an aid in controlling cooking odors only. It will not completely eliminate such odors.

PRE-FILTER ASSEMBLY

FILTER PACK

GREASE BAFFLE

1. The GREASE BAFFLE separates grease particles and water vapor from the air stream by the centrifugal force of the air moving through its inter-leaved baffle plates. Ejecta is collected in the GREASE CUP through drain holes in the baffle frame and cabinet. The GREASE BAFFLE POSITION MONITOR plunger switch controls electric power to the ventilator fan.

2. The PRE-FILTER is composed of a replaceable media filter and a filter-retaining gage. The pre-filter captures the bulk of grease vapors. Pre-filter position is monitored by a vacuum switch, which is in the control circuit of the cooking appliance contactor.

3. The FILTER PACK is composed of a high-efficiency filter to capture grease vapors down to a very small particle size; and, an activated charcoal filter to help control cooking odors. The FILTER PACK POSITION MONITOR plunger switch is in the control circuit of the cooking appliance contactor.

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