Hoshizaki REFRIGERATED PREP TABLE WITH RAISED RAIL 73168 User Manual download pdf (Page 62)

VI. Technical Information

A. Refrigeration Circuit

1. HPR46A(-D), HPR72A(-D), HPR100A(-D)

Note: The number of rail fans varies between models.

Front

Cabinet

Expansion

Valve

Cabinet Fans

Rail Fans

Rail Evaporator

Cabinet

Evaporator

Cabinet

Liquid

Line

Valve

Rail Expansion Valve

Compressor

Compressor Access Valve

Cabinet

Condensate

Drain Pan

High Pressure

Switch

Drier

Condenser Fan

Condenser

Receiver

Tank

Receiver Service Valve

Rail Low-Side

Service Valve

Rail High-Side

Service Valve

Defrost

Thermistor

Defrost Thermostat

Cabinet Thermistor

Rail Thermistor

Control Box

Rail Low-Side

Access Valve

Rail High-Side

Access Valve

Rail Liquid

Line Valve

Rail

Disconnects

1 2 ... 57 58 59 60 61 62 63 64 65 66

Hoshizaki 1
IMPORTANT 2
CONTENTS 3
I. Specications 7
A. Nameplate Ratings 7
B. Dimensions 7
II. General Information 8
A. Construction 8
B. Sequence of Operation 9
1. Cabinet Cooling 12
2. Cabinet and Rail Cooling 13
4. Cabinet Defrost 14
(defrost terminated) 14
D. Control Board 15
2. Control Board Layout 16
WARNING 20
E. Thermistor Check 24
F. Perimeter Heater 24
G. Compressor Protector 24
III. Service Diagnosis 25
A. Alarm Signals 25
B. Service Chart 33
2. Cabinet Cooling 34
3. Rail Cooling 36
5. Other 38
Condenser Thermistor 54
(clogged lter) 54
Defrost Heater 54
Defrost Heater Bracket 54
CAUTION 55
Condenser Fan 56
Motor Bracket 56
Condenser Fan Motor 56
Condenser Fan Blade 56
Condenser 56
A. Cleaning 58
B. Maintenance 60
C. Shutdown and Long Storage 61
VI. Technical Information 62
A. Refrigeration Circuit 62
B. Wiring Diagrams 63
*High Pressure Switch 64
Cut-out 490±10 64
Cut-in 370±20 PSIG 64
AWAITING DATA 66

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