Hoshizaki rh1-aac 補足マニュアル

3

CONTENTS

I. Specifications ...................................................................................................................... 5

A. Nameplate Ratings........................................................................................................ 5
B. Dimensions ................................................................................................................... 5

1. Notes for All Units .................................................................................................... 5
. RH1-AAC(-HD), FH1-AAC(-HD) .............................................................................. 6
3. RH-AAC(-HD), FH-AAC(-HD) .............................................................................. 7
4. RH3-AAC(-HD) ........................................................................................................ 8

II. General Information ........................................................................................................... 9

A. Sequence of Operation and Timing Charts ................................................................... 9

1. Refrigerator ............................................................................................................. 9
. Freezer .................................................................................................................. 11

B. Control Module ............................................................................................................ 13

1. Settings and Adjustments. ..................................................................................... 13
. Service Menu ........................................................................................................ 14

C. Thermistors ................................................................................................................. 16

1. Cabinet Thermistor (SEN1: white and black leads) ............................................... 16
. Defrost Thermistor (SEN: black and red leads) .................................................. 16
3. Thermistor Check Procedure ................................................................................. 16

D. Compressor Protector ................................................................................................. 17
E. Safety Devices ............................................................................................................ 17

1. Pressure Switch ..................................................................................................... 17
. Defrost Protection .................................................................................................. 17

F. Perimeter Frame Heater .............................................................................................. 17

III. Service Diagnosis ........................................................................................................... 18

A. Diagnosis Chart .......................................................................................................... 18

IV. Removal and Replacement of Components ................................................................... 1

A. Service for Refrigerant Lines ...................................................................................... 1

1. Refrigerant Recovery ............................................................................................. 1
. Brazing .................................................................................................................. 1
3. Evacuation and Recharge [R-134a, R-404A] ........................................................

B. Removal and Replacement of Compressor ................................................................ 3
C. Removal and Replacement of Expansion Valve ......................................................... 4
D. Removal and Replacement of Evaporator .................................................................. 5
E. Removal and Replacement of Door Gasket ................................................................ 5
F. Removal and Replacement of Door Closure Spring .................................................... 6
G. Door Re-Hinging ......................................................................................................... 7
H. Removal and Replacement of Control Module ........................................................... 8
I. Removal and Replacement of Thermistors .................................................................. 9

Please review this manual. It should be read carefully before the unit is serviced or
maintenance operations are performed. Only qualified service technicians should service
and maintain the unit. This manual should be made available to the technician prior to
service or maintenance.