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Summary of Contents for Hoshizaki HBB-2-59
- Page 1 Service Manual Back Bar Equipment Models HBB-2-59 (-S) HBB-2-69 (-S) HBB-3-80 (-S) HBB-4-95 (-S) HBB-2G-LD-59 (-S) HBB-2G-LD-69 (-S) HBB-3G-LD-80 (-S) HBB-4G-LD-95 (-S) Issued: 06-11-2018 hoshizakiamerica.com Revised:...
- Page 2 Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, send an e-mail message, or write to the Hoshizaki Technical Support Department for assistance. Phone: 1-800-233-1940; (770) 487-2331 Fax: 1-800-843-1056;...
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Page 3: Table Of Contents
IMPORTANT This manual should be read carefully before the appliance is serviced. Read the warnings and guidelines contained in this manual carefully as they provide essential information for the continued safe use, service, and maintenance of the appliance. Retain this manual for any further reference that may be necessary. CONTENTS Important Safety Information.................... -
Page 4: Important Safety Information
Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, damage to the appliance, or damage to property. WARNING ndicates a hazardous situation which could result in death or serious injury. - Page 5 WARNING, continued • Do not use an extension cord. • If the power cord is damaged, replace with factory-specified cord. • Do not use an appliance with a damaged power cord. The power cord should not be altered, jerked, bundled, weighed down, pinched, or tangled. Such actions could result in electric shock or fire.
- Page 6 WARNING, continued • Do not block air inlets or outlets, otherwise cooling performance may be reduced. • Do not tightly pack the cabinet. Allow some space between items to ensure good air flow. Also allow space between items and interior surfaces. •...
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Page 7: General Information
I. General Information A. Construction... -
Page 8: Refrigeration Flow Chart
B. Refrigeration Flow Chart... -
Page 9: Sequence Of Operation And Service Diagnosis
II. Sequence of Operation and Service Diagnosis A. Sequence of Operation Flow Charts 1. Refrigerator... -
Page 10: Service Diagnosis
B. Service Diagnosis WARNING The appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. Risk of electric shock. Use extreme caution and exercise safe electrical practices. - Page 11 1. Factory Default Setting: a) Temperature Settings: 32°F. b) Temperature Display Scale: °F. For further details, see "II.C.Controller Check" or "III.Controller and Adjustments." Note: • When exposed to high temperatures, a high-temperature alarm "Hi" may occur at startup. To silence the alarm, press and release the “SET” button. Alarm automatically resets when temperature drops to an acceptable range.
- Page 12 c) Comp and CondFM Diagnosis: Confirm Comp and CondFM energize after the 3-min. of delay at the power on. If not, check if the compressor icon appears in the remote display, if not check the set point and the temperature in the remote display, if the temperature is not in proper range check the CTh status.
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Page 13: Controller Check
C. Controller Check 1. Controller Before replacing Controller that does not show a visible defect and that you suspect is bad, conduct the following check procedure. This procedure will help you verify your diagnosis. Always choose a neutral to establish a good neutral connection when checking high voltages. -
Page 14: Thermistor Check
D. Thermistor Check The cabinet thermistor (NTC type) is used for cabinet temperature control; the thermistor resistance varies depending on temperature. The controller monitors the thermistors to control system operation. No adjustment is required; the controller has the adjustment from factory. -
Page 15: Diagnostic Tables
E. Diagnostic Tables Check for correct appliance installation per the instruction manual and proper voltage per appliance nameplate. 1. Not Cooling Not Cooling - Possible Cause 1. Power Supply a) Unplugged, off, blown fuse, tripped or defective circuit breaker. On three-section receptacle box, only top receptacles have power. - Page 16 2. Evaporator Frozen Up Evaporator Frozen Up - Possible Cause 1. Evaporator a) Dirty. 2. Evaporator Fan Motor a) Fan blades binding. b) Defective. 4. Controller a) Defective. 5. Compressor Relay a) Defective. 6. Refrigerant Charge/Refrigerant a) Low. Lines b) Component restriction (cap tube, drier). 3.
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Page 17: Controller And Adjustments
III. Controller and adjustments A. Controller with Integrated Display 1. Controller with Integrated Display All models are pretested and factory set. NOTICE • The controller is fragile, handle very carefully. • Do not change wiring and connections. Never misconnect terminals. •... -
Page 18: B) Controller Location And Layout
b) Controller Location and Layout Door to access condensing unit and control box. Controller Controller Lamp Switch Turn On/Off The Lamp Power Switch Turn On/Off Appliance... -
Page 19: C) Controller Connections
In setpoint mode press to raise temperature, Cabinet Temperature otherwise press and hold to turn compressor on or off without unplugging or using power switch. Compressor Icon Press to change the temperature setpoint. In setpoint mode press to lower temperature, otherwise press and hold to initiate manual defrost. -
Page 20: Temperature
B. Temperature The temperature default scale is °F, but it can be changed to read °C. To change, see "III.B.3. Changing the Temperature Display Scale (°F or °C)". 1. Default Settings a) Temperature Setting: 32°F. b) Temperature Display Scale: °F. c) Differential temperature: 6°F (3.3°C) to turn ON the Comp and CondFM. -
Page 21: Changing The Temperature Display Scale (°F Or °C)
3. Changing the Temperature Display Scale (°F or °C) To change from °F to °C, access the controller program mode. Press and hold the "SET" button for 5 sec. "PS" appears in the display. Release the "SET" button. Press the "SET" button again, "0"... -
Page 22: Alarm Safeties
D. Alarms Safeties Alarm signals are designed to protect the appliance and the beverage product. These alarms give information or warnings in the event the appliance is operating out of acceptable parameters. Should one of the alarms occur, follow the instructions in the table below to address the alarm. -
Page 23: Replacement Of Components
IV. Replace of Components WARNING • The appliance should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fire. • Move the power switch to the "OFF" position then unplug the appliance from the electrical outlet before servicing. - Page 24 1. Refrigerant Recovery The appliance is provided with refrigerant access valves. Using proper refrigerant practices recover the refrigerant from the access valves and store it in an approved container. Do not discharge the refrigerant into the atmosphere. 2. Brazing WARNING •...
- Page 25 Remember to loosen the connection and purge the air from the hose. See the nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 (latest edition) be used.
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Page 26: Important Notes For Component Replacement
B. Important Notes for Component Replacement WARNING • When replacing a component listed below, see the notes to help ensure proper operation. Components Notes Compressor Install a new start relay, start capacitor, and compressor protector (compressor protector is integrated with the start relay). Compressor, WARNING! To reduce the risk of electric shock, be sure to Evaporator... -
Page 27: Preparing The Appliance For Periods Of Non-Use
VI. Preparing the Appliance for Periods of Non-Use WARNING • When preparing the appliance for long storage, prevent the doors from closing to reduce the risk of children getting trapped. • To reduce the risk of electric shock, do not touch the attachment plug or power witch with damp hands. -
Page 28: Technical Information
Cut In (Solid Doors) Amps Voltage Plug Amount Ref. Type Suction Line * Size (+/-2°F) (+/-2°F) HBB-2-59 (-S) 1/3 115 / 60 / 1 5-15P 15 amp 9.9 oz 134a 32°F 38°F 16-18 PSIG HBB-3-69 (-S) 1/3 115 / 60 / 1... -
Page 29: Wiring Diagrams
B. Wiring Diagram For models: HBB-2-59 (-S) HBB-2G-LD-59 (-S) HBB-3-69 (-S) HBB-3G-LD-69 (-S) HBB-3-80 (-S) HBB-3G-LD-80 (-S) HBB-4-95 (-S) HBB-4G-LD-95 (-S)
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