Wells WV-4HF Supplemental Service Instructions
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Wells WV-4HF Supplemental Service Instructions

Electric 4-burner hotplate with ventless hood system
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504
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-4HF
WV-4HFRW
WV-4HS
WV-4HSRW
ELECTRIC 4-BURNER
HOTPLATE
with
VENTLESS
HOOD
SYSTEM
IMPORTANT: 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 PROFESSIONAL TECHNICIANS ONLY.
PRINTED IN UNITED STATES OF AMERICA
SV504
08
p/n
Rev.(-)
S504
0519 cps

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Summary of Contents for Wells WV-4HF

  • Page 1 SYSTEM IMPORTANT: 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 PROFESSIONAL TECHNICIANS ONLY. PRINTED IN UNITED STATES OF AMERICA SV504 Rev.(-)
  • Page 2 PRECAUTIONS AND GENERAL INFORMATION This appliance is intended for use in commercial establishments WARNING: only. RISK OF INJURY This appliance is intended to prepare food for human consumption. No other use is recommended or authorized by the manufacturer or its Installation procedures must agents.

  • Page 3: Table Of Contents

    WV-4HSRWT 240V 9,200 INTRODUCTION This manual contains information needed to properly service and repair Wells Bloomfield free-standing four-burner electric hotplate with ventless hood system. This manual applies to the following Wells Manufacturing models: WV-4HF, WV-4HFRW and WV-4HFRWT WV-4HS, WV-4HSRW and WV-4HSRWT...

  • Page 4: Features & Operating Controls

    FEATURES & OPERATING CONTROLS VENTILATOR CONTROL PANEL see pages 4 & 5 COOKTOP CONTROL PANEL see pages 4 & 5 WARMER CONTROLS see pages 4 & 5 Fig. 1 Ventilator Section Operating Features & Controls...

  • Page 5: Ventilator Hood Section

    FEATURES & OPERATING CONTROLS (continued) VENTILATOR SECTION ITEM DESCRIPTION COMMENT FIRE SUPPRESSION Container for Ansulex™ Low-pH liquid fire suppression liquid. AGENT TANK (1.5 gal.) ADJUSTABLE (FRONT) Allows the unit to be leveled. RIGID (REAR) CASTER Allows the unit to be easily positioned by lifting the front of the unit slightly.
  • Page 6 FEATURES & OPERATING CONTROLS (continued) Fig. 2 Ventilator Section Controls & Indicator Lights Fig. 3 Cooktop Section Controls & Indicator Lights HUMITROL RACK ELEMENT SUPPORT SPIRAL DRIP PAN HEATING DRAWER ELEMENT HEATING ELEMENT INSERT (ROTATED) SOLID PLATE HEATING RW-STYLE ELEMENT ROLL WARMER RWT-STYLE HOTPLAT E COOKTOP...
  • Page 7 FEATURES & OPERATING CONTROLS (continued) ITEM DESCRIPTION COMMENT VENTILATOR SECTION CONTROLS POWER SWITCH Energizes blower motor. If, after 10 seconds, proper conditions are met, cooktop is energized. POWER ON INDICATOR GREEN. Glows when POWER switch is ON. CHECK FILTERS ALARM AMBER.

  • Page 8: Filter Arrangement

    HOOD SECTION - FILTER ARRANGEMENT FILTER PA CK PO SITIO N SWITCH FILTER PA CK SE AL FILTER PACK FILTER PA CK HOL DE R CLIP H OLDER CLIP CLIPS ONTO GRE ASE B AFFLE LEDGE PO SITIO N SWITCH PRE -FILTER AS SEMB LY GRE ASE...

  • Page 9: Service Indicator Lights

    HOOD SECTION - SERVICE INDICATOR LIGHTS Energizes the ventilator section. When all three filters are sensed as being in their proper position, POWER SWITCH and sufficient airflow is proven, the cooking appliance contactor is energized. INDICATOR LIGHT When lit, indicates that electrical power is available, (GREEN) VENTILATOR and that the power switch (V.01) is turned ON.

  • Page 10: Operational Notes

    HOOD SECTION - OPERATIONAL NOTES WARNING: REPLACE PREFILTER and REPLACE FILTER PACK indicator lights provide a timely warning that a system shut-down is imminent. The FIRE AND HEALTH actual time between the indicator light coming on and the loss of HAZARDS cooking appliance power will depend upon the cooking conditions.
  • Page 11 HOOD SECTION - OPERATIONAL NOTES (continued) ACCESS DOOR THIS SIDE THIS SIDE UP FOR HORIZONTAL MOUNTING FIRE DAMPER LABEL SHUTTER DAMPER SUPPORT FUSIBLE LINK 280ºF FIRE DAMPER INSTRUCTIONS 1. The FIRE DAMPER is accessible by removing the TOP PANEL IMPORTANT: The FIRE DAMPER sets in the DAMPER SUPPORT and may be Replace the entire fire damper assembly if the link trips, or if the...

  • Page 12: Filter System

    HOOD SECTION - FILTER SYSTEM HOOD ASSEMBLY (LOOKING UP) FILTER PACK POSITION MONITOR GREASE BAFFLE POSITION MONITOR PRE-FILTER NOTE AIR FLOW ARROWS ON ASSEMBLY GREASE BAFFLE, PRE-FILTER AND FILTER PACK. INSTALL THESE COMPONENTS SUCH THAT ARROWS POINT TOWARD FAN FILTER GREASE PACK BAFFLE...

  • Page 13: Vacuum System

    HOOD SECTION - VACUUM SYSTEM PORT A PORT A PORT B PORT C PORT C PORT C PORT B PLENUM PORT (AFTER FILTER PACK) CABINET PORT (BEFORE FILTER PACK) SWITCH FUNCTION PRE-FILTER POSITION MONITOR Unit will not function unless a pre-filter is properly installed, as sensed by the pressure drop across it.
  • Page 14 HOOD SECTION - ANSUL® FIRE DETECTION SYSTEM HOOD ASSE MBLY VIEWED FROM REAR DETECTOR IN PLENUM 212ºF 212ºF MANUAL PULL STATION CABLE SITS IN GROOVE IN PULLEY PULLEY ELBOW MICR OSWITC H IMPORTANT: 1. Cooking appliance protected by two 212ºF fusible links connected All servicing of the fire in series.
  • Page 15 HOOD SECTION - ANSUL® FIRE SUPPRESSION SYSTEM HOOD ASSEMBLY VIEWED FROM REAR FLEX HOSE UNDER-HOOD MANIFOLD APPLY SEALANT TAPE PLENUM NOZZLE ASSY NOZZLE 290 NOZZLE 1W APPLY SEALANT TAPE SEAL WITH TEFLON TAPE FIBER WASHER IS ALWAYS ON THE INSIDE CABINET WALL SEAL WITH TEFLON TAPE...
  • Page 16 HOOD SECTION - TROUBLESHOOTING SUGGESTIONS SYMPTOM POSSIBLE CAUSE SUGGESTED REMEDY Unit unplugged. Plug power cord into receptacle Circuit breaker off or tripped Reset circuit breaker Damaged power cord Replace power cord Damaged power switch Check switch. Replace as req’d. Entire unit inoperative No lights glow External interlock jumper loose or Check jumper.

  • Page 17: Ansul® System

    HOOD SECTION - TROUBLESHOOTING SUGGESTIONS (continued) SYMPTOM POSSIBLE CAUSE SUGGESTED REMEDY Prefilter is at end of service life Replace prefilter Vent fan working OK, but amber “REPLACE PREFILTER” light ON. Vacuum Switch VS3 damaged Replace vacuum switch VS3 Pre-filter frame not hooked in Hook metal pre-filterframe at top position at top to prevent air blowing around filter...

  • Page 18: Troubleshooting Suggestions

    SPIRAL HEATING EL:EMENT REPLACE MENT CAUTION: BURN HAZARD Applicable to Wells WV-4HS-series ventless appliances. Wells part number 50293: Revised to the latest UL requirements, Hotplate burner surfaces are very new replacement elements may connect differently than previously hot during operation. Allow unit to available replacement elements.
  • Page 19 SOLID (FRENCH PLATE) ELEMENT REPLACEMENT BURN HAZARD Applicable to Wells WV-4HF-series ventless appliances. Wells has introduced an upgraded element terminal lug for solid Hotplate burner surfaces are very (French plate) element cooktops. Units built prior to June 1, 2001 hot during operation. Allow unit to will require this upgrade when replacing elements.

  • Page 20: Drawer Warmer Section Operational Notes

    P R O C E S S INDICATOR INCREMENT AND DECREMENT KEYS 1. The optional drawer warmer unit is a Wells RW-26HD or CAUTION: RWT-26HD two-drawer roll warmer unit. BURN HAZARD 2. The drawer warmer has two individually controllable sections.
  • Page 21 DRAWER WARMER SECTION - CONTROL MODULE for RWT- STYLE UNITS CONTROL MODULE ITEM DESCRIPTION PROCESS Key: ºF Press to view actual temperature of cavity. ºC 4 Character LED Display: LOAD Normally shows SETPOINT temperature. ºF or ºC Indicator: Glows to indicate if unit is configured for PROCESS degrees Fahrenheit or degrees Celsius.
  • Page 22 DRAWER WARMER TROUBLESHOOTING SUGGESTIONS SYMPTOM POSSIBLE CAUSE SUGGESTED REMEDY Press power switch to "ON" NOTE: Drawer warmer is No lights or heat energized any time hood power Hood power switch not "ON" (both drawers) switch is "ON" and Ansul® system is ready.

  • Page 23: Ansul® Components

    PARTS BREAKDOWN for ANSUL® COMPONENTS FOR USE ONLY BY AUTHORIZED ANSUL© SERVICE PERSONNEL Refer to Ansul© part no. 418078-05 ref. NOZZLE 290 R-102 Restaurant Fire Suppression ANSUL© p/n 419342 System Design, Installation, Recharge and Maintenance ref. ADAPTER, QUICK-SEAL 3/8” ANSUL© p/n 77284 ref.
  • Page 24 CABINET COMPONENTS INTERNAL BRACKETS FIRE DAMPER ASSY 280ºF (ref. 301187) LABEL, CONTROL PANEL 502782 GASKET, SILICONE 15-1/4” 502772 (2 pl) GASKET, SILICONE 18-1/2” 502773 (2 pl) ASSY, FILTER PACK 22619 PREFILTER HOUSING, LIGHT 22618 SOCKET 505098 CAGE, BULB, APPLIANCE PRE-FILTER 100W 505100 22683...
  • Page 25 HOOD ELECTRICAL & VACUUM COMPONENTS FITTING, 1/2” CONDUIT ASSY, BLOWER STRAIGHT 57748 240V 502584 VACUUM SWITCH 502593 VACUUM SWITCH 502590 VACUUM SWITCH 502592 ASSY, VAC TUBE MANIFOLD 502588 VACUUM SWITCH 502591 ref Ansul® 77284 ref Ansul® 77284 SWITCH, POWER 8528-40 BUZZER, 240V SWITCH, FILTER LIGHT, INDICATOR...
  • Page 26 COOKTOP HEATING ELEMENT, SOLID 240V 2000W 503973 50293 COMPLETE SCREW 8-32 x 3/8 ASSEMBLY (pk 100) 53977 BRACKET, HOLD-DOWN SOLID ELEMENT 501451 NUT, 8-32 KEPS Ni 51053 (pk 100) FAN, COOLING 503655 INFINITE SWITCH 240V A CAM 50562 LIGHT, SIGNAL AMBER 50516 KNOB, HOTPLATE KNOB, HOTPLATE...
  • Page 27 18-302 (typ.) 55677 55683 50482 (240V) 50519 (120V) 65923 (set - includes left 65351 (CAVITY ASSEMBLY) and right) 50483 (pk 6) 63271 51808 (pk 10) 51801(UPPER) 55687 53565 (LOWER) -RWT ELECTRONIC CONTROL OPTION (PART NO. PENDING) 50372 WELLS 58936...

  • Page 28: Hood Section

    WIRING SCHEMATIC HOOD SECTION L2 L3 CAC-1 CAC-2 CAC-3 SERVICE REQUIRED CHECK FILTER INDICATOR INDICATOR PS1-1 FS1(NC) ATS1 PS1-2 COIL COOKING APPLIANCE CONTACTOR JUMPER BLOWER MOTOR POWER ON INDICATOR REPLACE PREFILTER INDICATOR REPLACE FILTER PACK INDICATOR COIL DRAWER WARMER RELAY FS1(NO) ANSUL®...
  • Page 29 WIRING DIAGRAM HOOD SECTION CHECK REPLACE REPLACE SERVICE FILTER PREFILTER FILTER PACK REQUIRED POWER ON EXTERNAL INDICATOR INDICATOR INDICATOR INDICATOR INDICATOR CONTROL TERMINAL BLOCK EXTERNAL VENTILATOR SHUTDOWN POWER SWITCH CONTROL JUMPER VACUUM SWITCH POWER HOOD VS4 (AIRFLOW) CORD LIGHT BLACK WHITE GREASE BAFFLE POSITION SW...

  • Page 30: Wiring Schematic

    WIRING SCHEMATIC HOTPLATE COOKTOP SECTION FROM COOKING APPLIANCE CONTACTOR TO VS 4 L1 L2 L3 ATS-1 INF SW 1-1 INF SW 1-2 HEATING ELEMENT (LEFT FRONT) HEATING INDICATOR INF SW 2-1 INF SW 2-2 HEATING ELEMENT (LEFT REAR) HEATING INDICATOR INF SW 3-1 INF SW 3-2 HEATING ELEMENT (RIGHT REAR)
  • Page 31 WIRING DIAGRAM HOTPLATE COOKTOP SECTION LEFT REAR RIGHT REAR HEATING ELEMENT HEATING ELEMENT LEFT FRONT RIGHT FRONT HEATING ELEMENT HEATING ELEMENT TO AIRFLOW VAC SW. 4 AMBIENT TEMP SW FROM COOKING APPLIANCE CONTACTOR HEATING HEATING HEATING HEATING INDICATOR INDICATOR INDICATOR INDICATOR GROUND COOLING...

  • Page 32: Drawer Warmer Section

    WIRING SCHEMATIC DRAWER WARMER SECTION (RW-STYLE) DRAWER WARMER ELEMENT (UPPER) HEATING INDICATOR DRAWER WARMER ELEMENT (LOWER) HEATING INDICATOR WV-4HRW DRAWER WARMER SECTION WIRING SCHEMATIC LEGEND T3, T4 = DRAWER WARMER THERMOSTAT DRAWER WARMER SECTION (RWT-STYLE) DRAWER WARMER ELEMENT (UPPER) CONTROLLER DRAWER WARMER ELEMENT (LOWER) CONTROLLER WV-4HRWT DRAWER WARMER SECTION...
  • Page 33 WIRING DIAGRAM DRAWER WARMER SECTION (RW-STYLE) WIRING DIAGRAM RW-26 from p/n 300959 issue A INDICATOR INDICATOR LIGHT LIGHT WIRE WIRE UPPER LOWER WIRE HEATING HEATING FROM WIRE ELEMENT ELEMENT DRAWER 240VAC 240VAC WARMER 900WATTS 900WATTS RELAY THERMOSTAT THERMOSTAT DRAWER WARMER SECTION (RWT-STYLE) UPPER UPPER HEATING...
  • Page 34 MSDS - ANSULEX™ Low pH FIRE SUPPRESSION MEDIA...
  • Page 35 MSDS - ANSULEX™ Low pH FIRE SUPPRESSION MEDIA...
  • Page 38 IMPORTANT: 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 PROFESSIONAL TECHNICIANS ONLY. Wells Bloomfield proudly supports CFESA...

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