Viking VCWB300 Service Notebook

Viking VCWB300 Service Notebook

Built-in full height wine cooler
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SERVICE NOTEBOOK
VCWB300 PROFESSONAL MODEL
BUILT-IN FULL HEIGHT WINE COOLER

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Summary of Contents for Viking VCWB300

  • Page 1 SERVICE NOTEBOOK VCWB300 PROFESSONAL MODEL BUILT-IN FULL HEIGHT WINE COOLER...
  • Page 2: Table Of Contents

    Technical Information--------------------------------------------------------------------- Sealed System------------------------------------------------------------------------------ Control Panel Assembly------------------------------------------------------------------- 6 Mode of Operation------------------------------------------------------------------------ 6 Temperature Readout and Setting----------------------------------------------- 7 Display Off------------------------------------------------------------------------- 7 Compressor Protection------------------------------------------------------------ 7 Fan Operation---------------------------------------------------------------------- 7 Alarm Security--------------------------------------------------------------------- 8 Holiday Mode---------------------------------------------------------------------- 8 Service Mode----------------------------------------------------------------------- 8 Display Interface Board----------------------------------------------------------- 8 Glass Mullion Shelf---------------------------------------------------------------- 9 Electronic Function Description-------------------------------------------------------- 10 Display Panel Keyboard---------------------------------------------------------- 10 Power Disconnect Switch--------------------------------------------------------- 10...
  • Page 3: Technical Information

    CONTACT AN AUTHORIZED TECHNICIAN FOR SERVICING OR REPAIR OF THIS WINE COOLER. The Viking Built-in Full Height 30” W. wine cooler (VCWB series) is designed to meet the needs of the upscale wine connoisseur while also meeting Viking Range Corporation’s stringent product standards. The product is 30” (76.2cm) wide and 84”...
  • Page 4: Sealed System

    The sealed system consists of the following components (listed in order of refrigerant flow): 1 condenser coil 1 dryer assembly 3 solenoid valves 3 heat exchangers 3 evaporators 1 compressor 1 discharge tube 1 drain pan heater 1 pre-condenser loop Refrigerant Type –...
  • Page 5: Control Panel Assembly

    CONTROL PANEL ASSEMBLY The wine cooler is equipped with control panel conveniently located in the top front of the top compartment of the wine cooler. From this point the user can operate all functions of the wine cooler’s temperature management and various electronic features.
  • Page 6: Temperature Readout And Setting

    and appropriate zone valve based upon the temperature at the evaporator thermistor and will turn off the zone valve based upon the temperature at the chamber thermistor. Temperature readout and setting: Pressing the zone button will change which chamber is selected for adjustments. The selected chamber will have a bar displayed over the temperature reading on the VFD.
  • Page 7: Holiday Mode

    Showroom mode: This mode, selected by closing the showroom switch is intended to simulate normal operation in all ways except the cooling and temperature alarm functions. Closure of this switch will over-ride normal cooling. Temperature displayed for the chambers will be the last temperatures stored in memory, or the factory defaults setting if they have not been changed.
  • Page 8: Glass Mullion Shelf

    GLASS MULLION SHELF Each compartment is separated be a fixed glass shelf (“Mullion” – two per wine cooler). These glass shelves are uniquely designed such that they act not only as an insulated divider wall, but also provides a means of draining the condensate water from the top and middle compartments and as a means of attaching and supporting the light tubes for the middle compartment.
  • Page 9: Electronic Function Description

    DISPLAY PANEL KEYBOARD ELECTRONIC FUNCTION DESCRIPTION Power Disconnect Switch: The power on/off switch is used to turn the power off to the wine cooler when cleaning it or changing the light tubes. The wine cooler is shipped with the power on/off switch in the on position.
  • Page 10: Display Panel Operation

    DISPLAY PANEL OPERATION Keyboard Entry Tone Indicates a pad was pressed, command read and accept. Zone Pad 1. Toggle between zones for set point temperature adjustment. Pressing immediately toggles from Top to mid to bottom, respectively that order. Entry tone will sound at each depression of pad.
  • Page 11: Display Pad

    Display Pad 1. Activates control panel. 2. Activates Holiday Mode. Pressing button for 15 seconds 3. Used in conjunction with “alarm” pad to toggle between 4. Used in conjunction with “Alarm” button, temperature can Alarm Toggles between alarm on and off. By pressing the alarm pad for 2 seconds.
  • Page 12: Door Stop Adjustment

    DOOR STOP ADJUSTMENT Using a 3/16” allen wrench, remove door stop pin located in bottom hinge. The pin is factory set 110°. For 120° swing, move the pin to the utmost forward stop hole. For 90° swing, move the pin to the utmost rear stop hole. HINGE ADJUSTMENT LEVELING ADJUSTMENTS Using 3/16”...
  • Page 13: Diagnostic Check Points

    DIAGNOSTIC CHECK POINTS (Rfer to Wiring Schematic on Page 19) Number DescriptionA Display Board Send +5Vdc data signals ground Touch switch inputs (with switches connected), typical +5VDC Ground Common for measurements on E2 Not connected When button is touched +4Vdc to +5Vdc, otherwise less than +1Vdc. When button is touched +4Vdc to +5Vdc, otherwise less than +1Vdc.
  • Page 14: E4 - Thermistor Inputs

    DIAGNOSTIC CHECK POINTS (con’t) Thermister inputs (measured with thermisters disconnected). 1 to 8 3 to 4.5 VDC – TE2 (Evaporator Thermister #2) 2 to 9 3 to 4.5 VDC – TC1 (Compartment Thermister #1) 3 to 10 3 to 4.5 VDC – TE1 (Evaporator Thermister #1) 4 to 11 3 to 4.5 VDC –...
  • Page 15: Compressor (General Information)

    General Information: Approved Board Certification Suction Discharge Process Mechanical Data: Low Starting Torque (LST) Lubricant Charge Lubricant type Lubricant Viscosity @ 40° C Weight (with Oil Charge) Nitrogen Charge Application: Evaporating Temperature range Refrigerant Refrigerant Charge Expanding Device Compressor Cooling LBP 32°...
  • Page 16: Thermister Resistance Reading

    THERMISTER RESISTANCE READING Using a Cup of Water (full of ice) at 32°F , place the Thermister in the water and you should read approximately 7353 Ω’s. DEG. F RESISTANCE 8989 8732 8483 8242 8009 7783 7556 7353 7148 6949 6756 6570 6389...
  • Page 17: Solenoid Valve / Evaporator Fan

    Solenoid Valve / Evaporator Fan FEATURES: Direct acting solenoid valve, designed to shut off refrigerating media. MOUNTING: Vertical with coil upwards preferred. During welding the central part of the body must not exceed 100° C. VALVE: Medium temperature from 10° C to + 90° C. Opening time 20 ms – closing time 20ms.
  • Page 18: Wiring Schematic

    VCWB300 WIRING SCHEMATIC...
  • Page 19: Wiring Diagram

    VCWB300 WIRING DIAGRAM...
  • Page 20 PROBLEM A. Warm temperature 1. Control set too warm in all Wine storage compartments. 2. Unit in Showroom Mode 3. Unit Recently Energized Allow 24 hours for unit to 4. Unit Recently Stocked 5. High Room Ambient 6. Door Ajar a.
  • Page 21 PROBLEM A. Warm temperature In all Wine Storage Compartments. 8. Condenser Air / Flow Condenser Fan Fault a. Dirty condenser b. Condenser fan blade loose or obstructed. c. Fan motor disconnected or malfunctioning. 9. Compressor Fault a. Compressor electrical components disconnected or malfunctioning.
  • Page 22 TROUBLESHOOTING GUIDE (con’t) PROBLEM 5. Door Ajar 6. Evaporator Thermistor Fault. 7. Condenser Air / Con- denser Fan Fault. 8. Check Thermistors 9. Refrigerant Valve Solenoid Fault a. Solenoid disconnected or malfunctioning. 10. Sealed System leak or Restriction C. Product Temper- 1.
  • Page 23 TROUBLESHOOTING GUIDE (con’t) PROBLEM 2. Refrigerant Valve Solenoid Fault, Stuck Open 3. Room Temperature Below Set-Point F. 1. “Extremely” 1. Control Set to Display Cold Temperatures Celsius but Customer ° ° Displayed (3 to 18 Thought it was 2. If outside US – Fahrenheit.
  • Page 24 TROUBLESHOOTING GUIDE (con’t) PROBLEM 4. No Power from Control Board Control Panel 1. Control Panel Ribbon Keys Inoperative or Cable Plugged in Malfunctioning Wrong 2. Control Panel or Ribbon 2. Check E2 test points page 14. Cable Defective (Or) No Signal Read at Control Board.

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