Hoshizaki AMERICA 73183 User Manual

Hoshizaki “A Superior Degree of Reliability” www.hoshizaki.com ModelsReach-In B-Series Commercial SeriesRefrigerated Kitchen Equipment Hoshizaki Amer

10II. Sequence of Operation and Service DiagnosisA. Sequence of Operation Flow Charts1. Refrigerator3. Cool Down RestartRefrigerator Sequence Flow Cha

112. FreezerFreezer Sequence Flow Chart3. Cool Down RestartLegend:Comp-compressorConFM-condenser fan motorCTh-cabinet thermistorDH-defrost heaterDrH-d

12B. Service Diagnosis WARNING• The appliance should be diagnosed and repaired only by qualied service personnel to reduce the risk of death, electri

131. Factory Default Settings: a) Temperature Settings: Refrigerator: 36°F (2°C); Freezer: -4°F (-20°C).b) Temperature Display Scale: °F.For further d

141a. Refrigerator-Control Module with Remote Display Module7) Startup/Cool Down–EvapFM and MH energize. There is a slight delay, then Comp and ConFM

158) Cool Down Achieved–CTh cools to 3°F (1.7°C) below setpoint. EvapFM and MH continue. Comp and ConFM de-energize. Diagnosis: Conrm Comp and ConFM

161b. Refrigerator-Control Module with Integrated Display7) Startup/Cool Down–There is a slight delay, cabinet temperature appears on display. Comp, C

178) Cool Down Achieved–CTh cools to 3°F (1.7°C) below setpoint. EvapFM and MH continue. Comp and ConFM de-energize. Diagnosis: Conrm Comp and ConFM

182a. Freezer-Control Module with Remote Display Module7) Startup/Cool Down–MH and PH energize. There is a slight delay, then Comp, ConFM, and EvapFM

198) Cool Down Achieved–CTh cools to 3°F (1.7°C) below setpoint. EvapFM, MH, and PH continue. Comp and ConFM de-energize. Diagnosis: Conrm Comp and C

2 WARNINGOnly qualied service technicians should install and service the appliance. To obtain the name and phone number of your local Hoshizaki Certi

20Defrost Diagnosis: 1a) Temperature/Time-Initiated: Has DTh cooled to 32°F (0°C) or lower? Before proceeding, conrm DTh status. See "II.D. Ther

21(2) 8-min. EvapFM delay timer terminates: 5min. after Comp and ConFM energize, conrm EvapFM energizes. Ifnot, conrm doors are closed and DS enga

222b. Freezer-Control Module with Integrated Display7) Startup/Cool Down– MH and PH energize. There is a slight delay, then Comp, ConFM, and EvapFM en

238) Cool Down Achieved–CTh cools to 3°F (1.7°C) below setpoint. EvapFM, MH, and PH continue. Comp and ConFM de-energize. Diagnosis: Conrm Comp and C

24Defrost Diagnosis: 1a) Temperature/Time-Initiation: Has DTh cooled to 32°F (0°C) or lower? Before proceeding, conrm DTh status. See "II.D. The

25(2) 7-min. EvapFM delay timer terminates: (note that the 7-min. EvapFM delay time is a maximum; if the defrost thermistor cools to 25°F (-3.9°C) bef

26C. Control Module Check1. Control Module with Remote Display ModuleBefore replacing CM that does not show a visible defect and that you suspect is b

2710) Check that the components restart after defrost termination. Refrigerator: DTh reaches 40°F (4.4°C), Comp and ConFM (CM C1 (R)) energize. If no

2810) Check that the components restart after defrost termination. Refrigerator: DTh reaches 40°F (4.4°C), Comp and ConFM (CM C1 (R)) energize. If not

29E. Diagnostic TablesCheck for correct appliance installation per the instruction manual and proper voltage per appliance nameplate. 1. Not CoolingNo

3IMPORTANTThis manual should be read carefully before the appliance is serviced. Read the warnings and guidelines contained in this manual carefully a

302. Evaporator Frozen UpEvaporator Frozen Up - Possible Cause1.Evaporatora)Dirty.2.Evaporator Fan Motora)Fan blades binding.b)Defective.3.Defrost The

313b. Defrost: Control Module with Integrated DisplayRefrigerator Defrost Fails to Initiate - Possible Cause1. Defrost Thermistor (Conrm DTh status.

32III. Controls and AdjustmentsA. Control and Display ModulesWhen the power switch is moved to the "ON" position there is a slight delay, th

33b) Control Module with Remote Display Module Connections All models are pretested and factory set.NOTICE• The control module is fragile, handle very

34ECO°C°FSCVVUp ButtonDown ButtonFront PanelSC ButtonManual Defrost ButtonCompressor IconDefrost IconEvaporator Fan Motor IconAlarm Icon2. Control Mod

35Cabinet ThermistorDefrost ThermistorCabinet Thermistor Defrost ThermistorC1 Compressor (R)L2 Power Supply (BK)N3 Neutral (W)F5 Evaporator Fan Motor

36B. TemperatureThe temperature default scale is °F, but it can be changed to read °C. To change, see "III.B.3. Changing the Temperature Display

37b) Control Module with Integrated DisplayTo change the temperature display scale, follow the steps below.1) Press and hold both the up and down butt

38D. Alarm SafetiesAlarm signals are designed to protect the appliance and food product. These alarms give information or warnings in the event the ap

392. Control Module with Integrated Display Alarm SignalsAlarm Code Problem Corrective Action/Reset DetailsE01Cabinet Thermistor Malfunction Alarm Cab

4D. Alarm Safeties ... 381. Control Module w

40E. Safety Devices1. Compressor External or Internal ProtectorIf combined temperature/amperage value is above the limit specied by the compressor ma

41IV. Replacement of Components WARNING• The appliance should be diagnosed and repaired only by qualied service personnel to reduce the risk of death

422. Brazing WARNING• R-134a and R-404A themselves are not ammable at atmospheric pressure and temperatures up to 176°F (80°C). • R-134a and R-404A t

435) Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and pu

44B. Important Notes for Component ReplacementNOTICE• When replacing a component listed below, see the notes to help ensure proper operation.• When re

45V. Maintenance WARNING• Move the power switch to the "OFF" position and unplug the appliance before performing maintenance to prevent elec

46VI. Preparing the Appliance for Periods of Non-Use WARNING• When preparing the appliance for long storage, prevent the doors from closing to reduce

47VII. Disposal WARNINGWhen preparing the appliance for disposal, remove the door to reduce the risk of children getting trapped. Leave the shelves in

48VIII. Technical InformationA. Electrical and Refrigerant DataModelAC Supply Voltage AmperesDesign Pressure (PSIG) Refrigerant (oz.)HIGH LOW 134a 404

49* High-Pressure SwitchCut-out 270±10 PSIG Cut-in 190±20 PSIG*B. Wiring Diagrams1a. CR1B-FG Auxiliary Code A-5 to B-5(A) Control Module with Remote D

5Important Safety InformationThroughout this manual, notices appear to bring your attention to situations which could result in death, serious injury,

501b. CR1B-FG Auxiliary Code B-5(B) and Later* High-Pressure SwitchCut-out 300±10 PSIG Cut-in 190±20 PSIG*Control Module with Integrated Display

51* High-Pressure SwitchCut-out 270±10 PSIG Cut-in 190±20 PSIG*2a. CR1B-FS/HS, CR3B-FS/HS Auxiliary Code V-5 to B-5(A)Control Module with Remote Displ

522b. CR1B-FS/HS, CR3B-FS/HS Auxiliary Code B-5(B) and Later* High-Pressure SwitchCut-out 300±10 PSIG Cut-in 190±20 PSIG*Control Module with Integrate

53* High-Pressure SwitchCut-out 270±10 PSIG Cut-in 190±20 PSIG*3a. CR2B-FG Auxiliary Code A-5Control Module with Remote Display Module

543b. CR2B-FG Auxiliary Code B-6 and Later* High-Pressure SwitchCut-out 300±10 PSIG Cut-in 190±20 PSIG*Control Module with Integrated Display

55* High-Pressure SwitchCut-out 270±10 PSIG Cut-in 190±20 PSIG*4a. CR2B-FS and CR3B-FS Auxiliary Code V-5 to B-5(B)CR2B-HS Auxiliary Code A-5 to B-5(A

564b. CR2B-FS and CR3B-FS Auxiliary Code B-5(C) and Later, CR2B-HS Auxiliary Code A-5 to B-5(B) and Later, CR3B-HS Auxiliary Code B-5(D) and Later* Hi

57** Defrost Thermostat Cut-out120°F±5°F (49°C±3°C) Cut-in70°F±5°F (21°C±3°C)* High-Pressure SwitchCut-out 490±10 PSIG Cut-in 370±20 PSIG***5a. CF1B-F

58** Defrost Thermostat Cut-out120°F±5°F (49°C±3°C) Cut-in70°F±5°F (21°C±3°C)* High-Pressure SwitchCut-out 490±10 PSIG Cut-in 370±20 PSIG***5b. CF1B-F

59** Defrost Thermostat Cut-out120°F±5°F (49°C±3°C) Cut-in70°F±5°F (21°C±3°C)* High-Pressure SwitchCut-out 490±10 PSIG Cut-in 370±20 PSIG***A-5 (G) an

6 WARNING, continuedFor 208-230VAC Models• THE APPLIANCE MUST BE GROUNDED: The appliance is equipped with a NEMA L14-20 four-prong locking, grounding

606b. CF1B-FS and CF3B-FS (one section side) Auxiliary Code A-5 to B-5(B),CF1B-HS Auxiliary Code A-5 to B-5(A), CF3B-HS (one section side) Auxiliary C

61** Defrost Thermostat Cut-out120°F±5°F (49°C±3°C) Cut-in70°F±5°F (21°C±3°C)* High-Pressure SwitchCut-out 490±10 PSIG Cut-in 370±20 PSIG***A-5 (G) an

627b. CF2B-FS and CF3B-FS (two section side) Auxiliary Code B-5(B) and Later,CF2B-HS and CF3B-HS (two section side) Auxiliary Code B-6 and Later** Def

638. CR3B-FS/HS Receptacle Box Connection9. CF3B-FS/HS Receptacle Box ConnectionNote: Only the top receptacles have power.Note: Only the top receptacl

7 WARNING, continued• Do not place anything on top of the appliance. Foreign objects or moisture could enter the appliance and result in electric shoc

8I. General InformationA. ConstructionCondenser Fan MotorCondenserDisplay Module/Control Module with Integrated DisplayFront PanelDoor Door GasketCont

9B. Refrigeration Flow ChartEvaporator Fans(2 or 3 depending on model)EvaporatorThermostatic Expansion ValveCompressorLow-Side Access ValveCondensate