Table Of Contents - Hoshizaki REFRIGERATED PREP TABLE WITH RAISED RAIL 73168 Service Manual

This manual should be read carefully before the unit is serviced or
maintenance operations are performed. Only qualified service technicians
should install, service, and maintain the unit. Read the warnings contained
in this booklet carefully as they give important information regarding safety.
Please retain this booklet for any further reference that may be necessary.
Important Safety Information ................................................................................................. 6
I. Specifications ...................................................................................................................... 7
A. Nameplate Ratings ........................................................................................................ 7
B. Dimensions ................................................................................................................... 7
II. General Information .......................................................................................................... 8
A. Construction .................................................................................................................. 8
B. Sequence of Operation ................................................................................................. 9
1. Startup .................................................................................................................... 9
2. Cool Down .............................................................................................................. 9
3. Cool Down Achieved ............................................................................................... 9
4. Cool Down Restart ................................................................................................ 10
5. Cabinet Defrost ...................................................................................................... 10
6. Rail Defrost .............................................................................................................11
C. Sequence of Operation Charts ................................................................................... 12
1. Cabinet Cooling ...................................................................................................... 12
2. Cabinet and Rail Cooling ....................................................................................... 13
D. Control Board .............................................................................................................. 15
1. Control Board Location........................................................................................... 15
2. Control Board Layout ............................................................................................. 16
3. Features ................................................................................................................. 17
4. Controls and Adjustments ...................................................................................... 18
a) Switch Settings ................................................................................................ 18
b) Temperature Display ........................................................................................ 18
c) Temperature Setpoint ....................................................................................... 19
d) Cabinet Defrost ................................................................................................ 19
e) Energy Saving Mode ........................................................................................ 19
f) Temperature Correction Factor .......................................................................... 20
5. Service Menu ........................................................................................................ 21
a) Service Menu Access ...................................................................................... 21
b) Service Menu Chart ......................................................................................... 22
6. Alarm Signals ...................................................................................................... 23
7. Control Board Check Procedure ............................................................................. 23
8. Control Board Replacement .................................................................................. 23
E. Thermistor Check ........................................................................................................ 24
F. Perimeter Heater .......................................................................................................... 24
G. Compressor Protector ................................................................................................. 24
IMPORTANT
CONTENTS
3