Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
- A. Electrical and Refrigerant Data
- B. Wiring Diagrams
- 1a. Refrigerator: Undercounter and Worktop Auxiliary Code C-5(D) and Earlier
- 1b. Refrigerator: Undercounter and Worktop Auxiliary Code C-5(E) and Later
- 2a. Refrigerator: Prep Table Auxiliary Code C-5(D) and Earlier
- 2b. Refrigerator: Prep Table Auxiliary Code C-5(E) and Later
- 3a. Freezer: All Auxiliary Code C-5(D) and Earlier
- 3b. Freezer: All Auxiliary Code C-5(E) and Later
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C. Safety Devices
1. Compressor External or Internal Protector (All Models)
If combined temperature/amperage value is above the limit specied by the
compressor manufacturer, the compressor protector operates independently to turn
off the compressor. The compressor protector de-energizes the compressor until the
temperature/amperage value returns to an acceptable level.
2. High-Pressure Switch (CRMR60 and CRMR72 Prep Table, CRMF48(-01)(-W)(-W01),
and CRMF60(-W))
If pressure on the high-side of the appliance exceeds Hoshizaki specications, the
high-pressure switch activates and interrupts the compressor circuit, de-energizing the
compressor until the pressure returns to an acceptable level.
If the condenser fan motor is operating and the compressor is off, it is most likely that the
compressor protector opened. If both the compressor and condenser fan motor are off, it
is most likely the appliance is off or the high-pressure switch has opened.
D. Perimeter/Mullion Heater
Freezers are equipped with perimeter and mullion heaters.