Related Manuals for Viking VCBB360R
Summary of Contents for Viking VCBB360R
- Page 1 SERVICE NOTEBOOK REFRIGERATOR VCBB360R / VCBB362R (Right) – VCBB360L / VCBB362L (Left) VIKING RANGE CORPORATION, P.O. DRAWER 956, GREENWOOD, MS. 38930 - USA...
-
Page 2: Table Of Contents
Table of Contents Technical Information........................Display Panel..........................Display Panel Operation....................... Electronic Functional Description....................Power Disconnect Switch Showroom Switch Alarms Temperature Control Operation....................Adaptive Defrost Operation......................Program Mode..........................Electronic Testing......................... Electronic Function Description....................Wiring Diagram..........................Wiring Schematic (Complete)......................15 Wiring Schematic (Freezer Compartment)..................16 Wiring Schematic (Refrigeration Compartment)................ -
Page 3: Technical Information
Technical Information – Refrigerator To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct earth ground and polarization. -
Page 4: Display Panel
Display Panel Display Panel Keyboard... -
Page 5: Display Panel Operation
Display Panel Operation Keyboard Tone Activates Maximum freezer mode setting freezer Entry Tone temperature to coldest setting for 24 hours or Indicates a pad was pressed, command read until Max Frz pad is pressed again. and accepted, Turn off entry tone by pressing Freezer indicator light will glow. -
Page 6: Electronic Functional Description
Electronic Functional Description High Temperature Alarm Power Disconnect Switch Alarm sounds and indicator light shows if Use power disconnect switch to disconnect freezer or refrigerator temperature has gone power without unplugging refrigerator. Power above critical level and remains warm for 2 disconnect switch is located behind air grille on hours. -
Page 7: Temperature Control Operation
Electronic Functional Description • Freezer temperature setting Temperature Control Operation thermistor value will determine if For any temperature setting, outputs will be compressor/condenser turned off/on based on cut-in, cut-out evaporator fan switches are open or temperatures determined by resistance levels of closed. -
Page 8: Adaptive Defrost Operation
Initial value at power up CRDT is 4 hours. Electronic Functional Description • Vacation Mode CRDT equals 96 Adaptive Defrost Operation hours. Vacation Mode CRDT is interrupted with door openings. Defrost occurs after predetermined length of Defrost interval will revert back to compressor run hours. -
Page 9: Program Mode
Program Mode Indicator lights 1 through 4 represent the ten’s digit with 1 being the most significant bit. Indicator lights Accessing Program Mode 5 through 8 represent one’s digit with 5 being the most significant bit. Positive and negative are shown Two programming modes are available. - Page 10 Program Mode • Max Frz Run Time Duration Setting Freezer Temperature Offset 1. Press Max Frz pad. Max Frz light will Press Freezer pad. Freezer temperature glow. One temperature indicator should indicator and one indicator will glow. glow indicating present Max Frz run time Press Warmer pad to move offset to the duration in 4 hour increments (indicator...
-
Page 11: Electronic Testing
Electronic Testing 1. Check for line voltage on terminal E7 on high voltage board. With refrigerator door open (refrigerator light ON) Electronic Testing Mode reading should be 120-VAC. With door closed (refrigerator light OFF) reading Forced Defrost Start 1. Press Display On pad to activate control should be approximately 0 VAC. -
Page 12: Electronic Function Description
Electronic Function Description WARNING: To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure earth ground and polarization. After servicing, reconnect power using power switch. - Page 13 Electronic Function Description WARNING To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct earth ground and polarization. After servicing, reconnect power using power switch Refrigeration and Defrost Component Checks Made at High Voltage Board Low voltage board input...
-
Page 14: Wiring Diagram
Wiring Diagram WARNING To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct earth ground and polarization. -
Page 15: Wiring Schematic (Complete)
Wiring Schematic To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct earth ground and polarization. After servicing, reconnect power using power switch... -
Page 16: Wiring Schematic (Freezer Compartment)
Electronic Function Description WARNING: To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct grounding and polarization. After servicing, reconnect power using power switch. -
Page 17: Wiring Schematic (Refrigeration Compartment)
Electronic Function Description WARNING: To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct grounding and polarization. After servicing, reconnect power using power switch. Refrigeration Compartment Theory of Operation As fresh food thermistor warms, resistance decreases allowing low voltage signal to be sent to the electronic control. -
Page 18: Wiring Schematic (Refrigerator And Freezer Compartment)
Electronic Function Description WARNING: To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct grounding and polarization. After servicing, reconnect power using power switch. Refrigerator and Freezer Compartment Theory of Operation If both freezer and fresh food thermistors are warm, their resistance drops (see table Refrigerator and Freezer Thermistor in Temperature Control Section) and the electronic signals for compressor / condenser... -
Page 19: Wiring Schematic (Adaptive Defrost)
Electronic Function Description WARNING: To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure correct grounding and polarization. After servicing, reconnect power using power switch. IMPORTANT: When showroom switch is OFF, the... -
Page 20: Component Specification
Component Specifications Component Description Test Procedures Bulb Volts 120VAC Watts 40 watts Capacitor, compressor run Volts 220VAC 15 µfc + 10% Capacitance - 5% Compressor Type Fan cooled, R134a refrigerant BTUH 970 BTUH Volts 120VAC 60Hz Watt 176 watts Current: Lock rotor 21.3 A Full load !.6 A... - Page 21 Component Specifications Motor, condenser PSC Volt 120 VAC Rotation (facing end opposite shaft) Clockwise 1300 RPM Watt 6.4 Watts Current 0.05 Amp 480 Ω Resistance Motor, ECM evaporator Volt 120VAC fan. Rotation (facing shaft) Counterclockwise 2150 RPM Watt 1.4 Watts Motor and blade, Volt 120VAC...
- Page 22 Component Specifications Switch, refrigerator light Type SPST, NC (Right opening door hinge) Volt 125 / 250 VAC Current 3 Amps Switch, power Type DPST Volt 125 / 250 VAC Current 15 Amps Switch, freezer light, sealed Type SPST, NC Volt 125 / 250 VAC Current 5.0 Amps.
-
Page 23: Component Testing
Component Testing Component Description Testing Capacitor Run capacitor connects to relay terminals 3 and L2 side of line. Disconnect power to refrigerator Remove captor cover and disconnect capacitor wires. Discharge capacitor be shorting across terminals with a resistor for 1 minute. Check resistance across capacitor terminals with ohmmeter set on “Rx1K “scale. - Page 24 Component Testing Component Description Test Procedures Compressor When compressor electrical circuit is Resistance test energized, the start winding current 1. Disconnect power to unit. causes relay to heat. After an amount 2. Discharge capacitor by shorting across terminals with a of starting time, start winding circuit resistor for 1 minute.
- Page 25 Component Testing Compressor Description Test Procedure Plug test cord into volt-watt meter to determine start and run wattage as well as check for low voltage which can also be a Source of trouble. 10. With power to voltmeter, press start cord switch and release. •...
- Page 26 Component Testing Compressor Description Test Procedure From condenser refrigerant flows into capillary and then to evaporator before returning to compressor through suction line. Drier Drier is placed at post Drier must be changed every time the system is opened for testing condenser loop outlet and or compressor replacement.
- Page 27 Component Testing Compressor Description Test Procedure Refrigerant gas is pulled through Separate evaporate from rest of refrigeration system and suction line by compressor to pressurize evaporator up to a maximum of 235 PSI with complete the refrigerant cycle. a refrigerant and dry nitrogen combination. Recheck for leaks.
- Page 28 Component Testing Compressor Description Test Procedure Motor, DC Refrigerator fan circulates See Refrigeration and Defrost Component Checks Made at High cold air into refrigerator Voltage Board. For DC fan voltage check procedures at High Voltage Board. Condensate evaporation fan Check for voltage across terminals. and out through toe grille to assure complete conden- sate evaporation.
- Page 29 Component Testing Compressor Description Test Procedure Switch, keyboard Semiconductor Switch for control panel keyboard Electronic control is not repairable. If any component is faulty, entire control must be replaced. NOTE: Repair or replaced line voltage components before testing or replacing electronic control.
- Page 30 Component Testing Compressor Description Test Procedure Switch, showroom ON position completes circuit to Check resistance at test points. SPDT lights and display only Showroom operation –E3 at high voltage board to pin 3 (blue/white wire) at high voltage wire harness. OFF position completers circuit for normal operation.
-
Page 31: Troubleshooting Charts
Troubleshooting Guide Symptom Possible Causes Corrective Acton Unit does not run No power to unit Check for power at outlet. Check fuse box / circuit breaker for blown fuse or tripped breaker. Replace or reset. Faulty service cord Check with test light at unit, if no circuit and current is indicated at outlet, replace or repair. - Page 32 Symptom Possible Causes Corrective Action Air in system Check for low side leak. Repair, evacuate and recharge system. Unit runs Ice on evaporator See “Ice on evaporator.” continuously. Temperature normal Noisy operation Loose flooring or floor not firm Repair floor or brace floor. Cabinet not level Level cabinet.
-
Page 33: System Diagnosis
System Diagnosis Pressure and Temperature Relationship Chart (See Service Procedures for additional information about items in this chart.) Condition Suction Head T1 Inlet T2 Outlet T3 Suction Wattage Pressure Pressure Temperature Temperature Temperature Variation Variation Variation Variation Variation Variation from Normal from Normal from Normal from Normal... -
Page 34: Service Procedures
Service Procedures To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit and discharge capacitor through resistor before attempting to service, unless test procedures require power to be connected. Ensure all ground wires are connected before certifying u nit as repaired and / or operational Service Equipment Refrigerant Precautions Listed below is equipment needed for proper... - Page 35 Service Procedures To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit and discharge capacitor through resistor before attempting to service, unless test procedures require power to be connected. Ensure all ground wires are connected before certifying u nit as repaired and / or operational Dehydrating Sealed Refrigeration System If leak is detected in tubing, replace tubing.
- Page 36 Remove and replace restricted device. Evacuate sealed system. 9. Charge system to specification. NOTE: Do not use captured or recycled refrigerant in Viking units. Captured or recycled refrigerant voids Viking compressor manufacturer’s warranty NOTE: Charge system with exact amount of refrigerant.
- Page 37 Charging refrigerants such as CFC12, etc. will lead to NOTE: Do not use captured or recycled refrigerant capillary tube plugging. in Viking units. Captured or recycled • Ester oil is used in HFC134a systems. Do not refrigerant void any warranty.
- Page 38 Service Procedures Health, Safety, and Handling CFC12 HFC134a HFC134a service Information (continued) Allowable overall exposure limit 1,000ppm Same • Care must be taken to minimize moisture from Vapor exposure to skin No effect Same entering HFC134a system. Do not leave Liquid exposure to skin Can cause frostbite Same...
- Page 39 Service Procedures 3. Attach ohmmeter to element leads. Check for continuity (see tech sheet for unit under test). Replacement Service Compressor (continued) If element reads open (infinite or very high • Thermocouple tips should be attached securely resistance): replace element. Check disc type thermostat for continuity (see to specific locations.
-
Page 44: Disassembly Procedures
Disassembly Procedures Refrigerator Light Switch An offset or ratchet #1 point Phillips driver is Door Components required Air Discharge Grille Remove air discharge grille. Remove center vane. Remove 2 Phillips screws securing switch to top NOTE: During reassembly replace vane with door hinge. - Page 45 Disassembly Procedures Evaporator Water Valve Reclaim refrigerant before proceeding with Remove toe grille. evaporator removal. To avoid refrigeration system Disconnect water supply. contamination, do not leave refrigeration system or Disconnect and remove outlet waterline. compressor open for more than 10 minutes. Remove two ¼”...
- Page 46 Disassembly Procedures High Voltage Board See Low and High Voltage Board and Access mounting screws by rotating shroud front Showroom Switch Access. to right. Remove board by squeezing clip tips. Remove three ¼” hex head screws. Mark location of wiring to showroom switch at Unplug 2 pin wire harness.
-
Page 47: Icemaker
ICEMAKER Specifications Mold Heater 185 watts, 264 ohms Close 17° ± 3°F (-8° ± 1°C) Thermostat Open 32° ± 3°F (0° ± 1°C) (Bimetal) Water Fill 140cc, 7.5 seconds Motor Cycle Stamped in circuit. Plug in connectors One revolution of blades takes 3 minutes plug stall time on ice (eject and water fill). - Page 48 ICEMAKER Module, Motor, and Support Assembly Loosen both screws in module access ports. Disconnect shut-off arm. Pull mold from support assembly. Remove module only by removing 3 screws and pulling module out of housing. Shut-Off Arm Pull shut-off arm out from white bushing. Replace by pushing completely in.
- Page 49 ICEMAKER Ejector Blades or Stripper Remove module and support assembly Install ejector blades, realigning “D” coupling with module cam. Accessing Control Box Remove motor and contact assembly from control box by removing 3 screws. Remove shut-off arm Pull free. Water Fill Adjustment Turning water level adjustment screw will move contact in relationship with contact ring segment.
- Page 50 ICEMAKER Replacement mold assembly comes with new mold heater installed. Caution To avoid module damage do not rotate Thermostat water adjustment screw more than one Remove control box from mold by removing full turn in either direction. screws. If water valve adjustment screw fall out, put screw in hole and align as shown below.
- Page 51 ICEMAKER To avoid property damage, test for water leaks after repair or replacement of water valve. Do not over tighten connection to household water supply. Water Valve Water valve has 1 solenoid. Valve has 80 mesh screen water strainer. When tan encapsulated solenoid is energized, the amount of water entering icemaker mold is directly proportional to length of time water valve switch is held closed by timing cam.
-
Page 52: Ice Maker Troubleshooting Chart
Ice Maker Troubleshooting Chart No or Low Ice Production Problem Action Warm freezer Adjust freezer control or repair refrigerator Broken locking tab on vertical cam Replace module Shorted and burned module shut-off Replace module switch and contacts Stalled or stripped motor Replace module 2:30 Ejector Position Contaminated module. - Page 53 Ice Maker Troubleshooting Chart Incorrect heater temperature Replace mold and heater assembly Apply alumilastic Broken shut-off lever or Replace module mislocated shut-off switch 3:00 Ejector Position Contaminated Replace module Jammed cubes Un-jam cubes Notice size and density of cubes Refrigerator or ice maker not level Level refrigerator or ice maker No power to ice maker Determine discontinuity by tracing power...
- Page 54 Ice Maker Troubleshooting Chart Excessive Ice Production Problem Action Shut-off arm not in actuator Replace shut-off arm in actuator Deformed Shut-off arm Replace shut-off arm Broken shut-off lever or Replace module lever bypassing vertical cam Broken module actuator Replace module Hollow Ice Cubes Low water fill volume Adjust module screw, clear water path,...
- Page 56 Filename: VCBB36055.doc Directory: D:\VBCODE\IPLUTILS\PDFGenerator\InputData\F90558 VCBB 360-362 Template: C:\Documents and Settings\tomw.EYECOM\Application Data\Microsoft\Templates\Normal.dot Title: Subject: Author: Viking Range Keywords: Comments: Creation Date: 10/24/2001 2:09 PM Change Number: Last Saved On: 3/28/2003 3:54 PM Last Saved By: Ken Sievert Total Editing Time: 3 Minutes...