Viking Quiet Cool VCRB5301 Service Manual Download | Manualshive

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Wiring Diagrams

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©2012 Viking Preferred Service

Wiring 30" All Refrigerator Page 1

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Summary of Contents for Quiet Cool VCRB5301

Page 1: ...al is to be used by qualified appliance technicians only Viking does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person This Base Manual covers general and specific information including but not limited to the following models ...

Page 2: ...t CRTD 24 Compressor low speed frequency 25 Adjust Cut In Hysteresis 25 Adjust Cut Out Hysteresis 26 Display Software Version 26 Exiting Mode A 27 Program Mode B 27 Adjust Refrigerator Temperature Offset 27 Adjust MAX REF duration 28 Adjust FAST COOL duration 28 Adjust Door Open Alarm delay 28 Adjust Compressor Dwell Time 28 Adjust FAST COOL duration 28 Adjust Door Open Alarm delay 29 Adjust Compr...

Page 3: ...will be preceded by the safety alert symbol and the word DANGER WARNING or CAUTION These words mean IMMEDIATE HAZARDS WHICH WILL RESULT IN SEVERE PERSONAL INJURY OR DEATH Hazards or unsafe practices which COULD result in severe personal injury or death Hazards or unsafe practices which COULD result in minor personal injury or product or property damage All safety messages will identify the hazard ...

Page 4: ...provided This appliance is equipped with a power supply cord having a 3 prong grounding plug To minimize possible shock hazard the cord must be plugged into a mating 3 prong grounding type wall receptacle DO NOT use an extension cord Tip Over Hazard Most of the unit s weight is at the top Extra care is needed when moving the unit to prevent tipping Keep doors closed until appliance is completely i...

Page 5: ... Viking Professional Series Commercial Freezer Built In Version 36 Wide Refresh Right Hinge Stainless Model Numbers Serial Numbers General Information 2012 Viking Preferred Service 5 Model Serial Number Matrix The serial number and model number for your appliance are located on the identiﬁcation plate mounted on the upper right of the interior compartment The serial number and model number for you...

Page 6: ...refrigerator to work properly it is important that you understand its various features controls and how to use them Power On Off Switch Power Interruption Switch The power on off switch is located behind your refrigerator s top grille It is used to turn the power OFF when cleaning the refrigerator or changing the light bulbs Your refrigerator arrives from the factory with the power interruption sw...

Page 7: ...ill flash 1 sec on and 1 sec off until cabinet temperature reaches set point temperature Fast Cool will terminate after the time duration has expired or if another mode is selected or if temperature is increased or decreased by pressing HIGHER or LOWER tabs Fast Cool can be cancelled by pressing FAST COOL again the Fast Cool will extinguish on the display MAX REF This set point temperature is not ...

Page 8: ...ell time and cause immediate compressor start up in the high speed mode 115HZ Forced pull down will terminate after both cut out temperatures are met or if a defrost or forced defrost is initiated or if an extended power loss occurs Forced Defrost Forced defrost will terminate when defrost terminator opens completion of cycle defrost or if forced pull down is initiated or if there is a long power ...

Page 9: ...h mode although they are recorded in memory and will be displayed upon exiting Sabbath mode The freezer refrigerator outputs compressor fans etc should not have an immediate reaction from a user action If the control calls for an action because the door was opened or closed the control shall delay its reaction randomly 15 25 seconds To exit SABBATH mode press and hold ACTIVATE CONTROLS and then DI...

Page 10: ...d FAST COOL will light up enabling the fast cool function which changes the freezer set point to max frz and the ref set point to max ref for a fac tory default of 2 hours Press FAST COOL pad A second press will disengage feature MAX REF Pad Sets refrigerator temperature to coldest setting 33o F Factory set ting is 4 hours Press MAX REF Pad to engage A second press will disengage feature ALARM OFF...

Page 11: ...tance levels of freezer or refrigerator thermistors Refrigerator Thermistor NTC As temperature decreases resistance increases As temperature increases resistance decreases Note Open thermistor or thermistor circuit or a shorted thermistor will result in refrigerator cross over fan continuing to cool with error code displayed The section will call for cooling 100 percent of time except during defro...

Page 12: ...ver up and pull out 2 Using an 8 magnetic nut driver remove the two 1 4 screws 3 Remove grille assembly 4 Remove four side screws and remove unit top This step gives you the best access to the hinge bolts but is not absolutely required You can reach in where grille was removed with ratchet to get to hinge bolts 5 Loosen the four hinge bolts Adjust door 6 Reverse procedure for reinstallation ...

Page 13: ...plate screws using a Phillips screwdriver Remove kickplate assembly 3 Using a 5 16 head wrench turn the front F adjustment screws to raise or lower the front of the freezer Note DO NOT use an electric device Overtightening can cause damage 4 Using a 5 16 head wrench turn the rear R adjustment screws to raise or lower the rear of the refrigerator 5 Reinstall kickplate Note DO NOT use an electric de...

Page 14: ...res are connected before certifying unit as repaired and or operational WARNING ACTIVATE CONTROLS LOWER HIGHER FRZ TEMP FAST COOL MAX FRZ ALARM OFF DISPLAY OFF FREEZER SAB SHOW FAST COOL MAX FRZ MAX REF HIGH TEMP POWER DOOR OPEN REFRIGERATOR F O O c Disassembly 14 2012 Viking Preferred Service Upper Grille Assembly Control Panel Parts Location Control Panel Overlay Switch High Voltage Board Power ...

Page 15: ...e control assembly 1 To remove the upper grille assembly slide out the middle air louver Middle Air Louver 2 With the middle grille louver removed remove the 2 1 4 hex screws securing the grille assembly Remove 1 4 screw on each side 3 Remove the grille assembly The control panel has an overlay switch attached to it that allows user input to the control boards 1 To access the control panel remove ...

Page 16: ...from the back of the control panel 3 Disconnect the ribbon from the control board Take caution with the ribbon cable to prevent damage Release tab and pull connector out of socket 4 Remove the two strain relief screws 5 The control panel can now be removed and the high voltage and low voltage boards are accessible 6 Reverse procedure to reinstall Overlay Switch 1 The unit uses an overlay switch to...

Page 17: ...omponents 1 To access the high voltage board remove the upper air grill assembly and control panel see Air Grill and Control Panel Removal sections Page 15 2 Compress plastic standoffs securing the high voltage board and pull towards you HV Board High voltage board is now accessible To check high voltage board refer to chart on Page 37 3 Reverse procedure to reinstall Low Voltage Board The unit us...

Page 18: ...th circuit breaker box when removing switch Verify contacts 4 5 open when the switch is in the 0 position and contacts 4 5 close when in the position 120 VAC should be measured when in the 0 position and 0 VAC should be measured when in the position 2 Switch bracket is mounted on electronics box with two 1 4 hex head screws 3 Reverse procedure to reinstall The Compressor is operated by a Inverter ...

Page 19: ...e condenser fan assembly remove upper air grill assembly remove control panel assembly see Air Grill and Control Panel Removal sections Page 15 Condenser Fan The condenser fan is located in the upper machine compartment of the unit 120 VDC is supplied to the fan when the Compressor Condenser Fan relay closes to E4 on the High Voltage Board 2 Remove the control box in order to gain easy access to t...

Page 20: ...est procedures require power to be connected Discharge capacitor through a resistor before attempting to service Ensure all ground wires are connected before certifying unit as repaired and or operational WARNING Parts Location Refrigerator Compartment Disassembly 20 2012 Viking Preferred Service Plasma cluster ...

Page 21: ... voltage is supplied to the socket Upper Fresh Food Fan The all refrigerator unit uses two fans to circulate air through the refrigerator compartment 1 To access the upper fan open the refrigerator door remove the upper shelf Remove four screws securing the evaporator cover and remove evaporator cover 2 Remove four screws securing upper fresh food fan assembly disconnect wiring and remove upper fr...

Page 22: ...of the thermistor equates to a resistance that is fed back to the low voltage control board Refer to resistance vs temperature chart on page 11 and Cut in and Cutout temperature chart on page 35 To access the thermistor open the refrigerator door remove the upper shelf remove the screws securing it and disconnect the wiring In order to check the thermistor refer to All Refrigerator Programing on p...

Page 23: ...tion the switch reads open and when the switch is in the up position it reads continuity To access the ﬂoat switch remove the lower access panel and the switch is accessible on the left hand side Loosen the securing nut disconnect wiring and repair replace as necessary Drain Pan Heater The unit uses a drain pan heater to vaporize condensate created by the refrigerator cooling process The pan heate...

Page 24: ...ss and release FAST COOL once and within five seconds press and release the following pads in sequence HIGHER LOWER HIGHER LOWER You will hear an audible three beeps and the numeric display will change to PrA see illustration below Program Modes Program Mode A Display REF Temperature Defrost mode selection At this point pressing and releasing the FAST COOL pad will toggle between adaptive and conv...

Page 25: ...lding the key down changes in increments of 5 HZ Pressing the HIGHER or LOWER pads will result in number of hours being displayed and can be adjusted in one hour increments from 4 hours to 24 hours CRTD interval To exit this time period adjustment press and release ACTIVATE CONTROLS one time which will result in PrA being displayed You are now back in Mode A Press and hold the ALARM OFF pad for th...

Page 26: ...jor version B the minor version C the build number Press and release REF TEMP this will result in REFRIGERATOR illuminating on display The freezer section should be set to appropriate value in table below While still in Mode A press and hold ALARM OFF and LOWER pads at the same time for three seconds the display will change to COH To exit the cut in adjustment press and release ACTIVATE CONTROLS o...

Page 27: ...ACTIVATE CONTROLS FRZ TEMP LOWER Refrigerator Offset Model Value 5301 6 5361 5 HIGHER This value should be set to appropriate value in table below ACTIVATE CONTROLS To exit Mode A and retain any changes made in system up to this point you must press and hold ACTIVATE CONTROLS for three seconds until you hear three audible beeps This signifies that the changes were written to the eeprom and that th...

Page 28: ...justed using the HIGHER and LOWER pads Adjust FAST COOL duration Adjust Door Open Alarm delay Adjust Compressor Dwell Time This adjustment is not a field adjustment and should not be performed by technicians This is a factory only adjustment If you see Cdt in the display immediately exit Mode B by holding ACTIVATE CONTROLS for three seconds until you get three audible beeps Return to your previous...

Page 29: ...ons Adjust Compressor High Frequency This adjustment is not a field adjustment and should not be performed by technicians This is a factory only adjustment If you see CHF in the display immediately exit Mode B by holding ACTIVATE CONTROLS for three seconds until you get three audible beeps Return to your previous actions Adjust DC Fan Cycling On Time Adjust DC Fan Cycling Off Time This adjustment ...

Page 30: ...uration example code 436 will only illuminate the REFRIGERATOR indicator because it is an All Refrigerator Setting the model code is required whenever the low voltage board is replaced this will update all of the settings indicated in Table 1 on Page 35 for the model you select With this setting you can program all necessary settings with one input for the appliance ALARM OFF Exiting Mode B Progra...

Page 31: ...ut adder This adjustment is not a field adjustment and should not be performed by technicians This is a factory only adjustment If you see dLA in the display immediately exit Mode C by holding ACTIVATE CONTROLS for three seconds until you get three audible beeps Return to your previous actions Defrost start delay This adjustment is not a field adjustment and should not be performed by technicians ...

Page 32: ...ime out after 10 minutes and any changes will be lost Constant Evaporator fan mode This mode only applies to All Refrigerator units and is ignored by any other unit configuration Plant mode This adjustment is not a field adjustment and should not be performed by technicians This is a factory only adjustment If you see Pt in the display immediately turn power switch to OFF Turn power back on and st...

Page 33: ...zone light REFRIGERATOR the temperature must be brought down below the limit temperature as described in the appropriate zone above Then pressing and releasing ALARM OFF once will clear the HIGH TEMP off the screen and the zone indicator will stop flashing 2 Open Thermistor Alarm Thecontrollerwillsenseanopenthermistorcondition within 15 seconds of power on Open Refrigerator Thermistor Alarm When t...

Page 34: ... condition and power is restored the Power Loss alarm is displayed This consists of the POWER indicator beingflashedonandoffalongwiththetemperature digits flashing on and off All other indicators will be off and only ACTIVATE CONTROLS and ALARM OFF keys are active on the control panel There is no audible alarm indication associated with the power loss alarm Pressing and releasing the ALARM OFF pad...

Page 35: ...out o F FRZ Cut In o F FRZ Cut out o F REF user default temp REF user default temp BM36 136 65 9 0 6 6 7 8 38 0 SxS42 342 75 6 2 6 6 7 7 38 0 SxS42D 242 75 8 4 6 6 7 7 38 0 SxS48 348 75 4 5 6 6 7 7 38 0 SxS48D 248 75 8 1 6 6 7 7 38 0 AF30 530 75 2 7 8 38 0 AF36 536 75 1 6 6 38 0 AR30 430 75 6 6 6 38 0 AR36 436 65 5 6 6 38 0 TABLE 1 Model types ...

Page 36: ... circuit 2 Compressor winding open circuit Check compressor inverter cable connection Check compressor winding resistances among the 3 terminal hermetic pins If resistances are within specifications and compressor inverter cable is OK replace inverter 4 Flashes every 5 sec onds OFF 1 Compressor damaged system damaged Check compressor input power Check compressor winding resistances Check leakage c...

Page 37: ...15 VAC Compressor Con denser Fan E4 E11 115 VAC Defrost Terminator closed E5 E11 0 VAC Defrost Terminator open E5 E11 115 VAC Defrost Heater E6 E11 115 VAC Ref door switch top right light E7 E11 115 VAC Freezer door switch left light E8 E11 115 VAC Neutral In E9 E11 N A Line In E10 E11 115 VAC Ground E11 N A Neutral In lights E12 E11 N A Neutral Out lights E13 E11 115 VAC Aux Heater Dis penser uni...

Page 38: ... 26 V p p to 34V p p ref P4 12 See Note 1 below P4 5 DC Fan enable 17 8 vdc 38 vdc ref to chassis grnd DC P4 6 Defrost termination 17 8 vdc 38 vdc ref to chassis grnd See Note 2 below P4 7 Evaporator fan enable 17 8 vdc 38 vdc ref to chas sis ground See Note 2 below P4 8 Compressor enable 17 8 vdc 38 vdc ref to chas sis ground See Note 2 below P4 9 Defrost termina tion signal 25 8 vdc 38 vdc ref t...

Page 39: ... Pan heater Ensure unit is level Verify operation of ﬂoat switch Verify heater is working Refrigerator too warm AR Model Control setting Door seal Dirty condenser Defective thermistor Control board Move control to medium setting Verify closure replace if needed Clean condenser coil Replace thermistor Verify operation AR Model Temperature setting Defective thermistor Control board Move to medium se...

Page 40: ...Schematic 40 2012 Viking Preferred Service 30 All Refrigerator Schematic Upper Section ...

Page 41: ...Schematic 2012 Viking Preferred Service 41 30 All Refrigerator Schematic Lower Section ...

Page 42: ...Schematic 42 2012 Viking Preferred Service 36 All Refrigerator Schematic Upper Section ...

Page 43: ...Schematic 2012 Viking Preferred Service 43 36 All Refrigerator Schematic Lower Section ...

Page 44: ...Wiring Diagrams 44 2012 Viking Preferred Service Wiring 30 All Refrigerator Page 1 ...

Page 45: ...Wiring Diagrams 2012 Viking Preferred Service 45 Wiring 30 All Refrigerator Page 2 ...

Page 46: ...Wiring Diagrams 46 2012 Viking Preferred Service Wiring 36 All Refrigerator Page 1 ...

Page 47: ...Wiring Diagrams 2012 Viking Preferred Service 47 Wiring 36 All Refrigerator Page 2 ...

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