KM1301SAH-E Service Manual - Hoshizaki

IMPORTANT
This manual should be read carefully before the icemaker is serviced or
maintenance operations are performed. Only qualified service technicians
should install, service, and maintain the icemaker. 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.
CONTENTS
Important Safety Information.................................................................................................. 5
I. Specifications....................................................................................................................... 6
A. Icemaker........................................................................................................................ 6
1. KM-1301SAH-E (air-cooled)...................................................................................... 6
2. KM-1301SWH-E (water-cooled)................................................................................ 7
3. KM-1301SRH-E (remote air-cooled)......................................................................... 8
B. Condenser Unit.............................................................................................................. 9
II. General Information...........................................................................................................11
A. Construction..................................................................................................................11
1. KM-1301SAH-E (air-cooled).....................................................................................11
2. KM-1301SWH-E (water-cooled).............................................................................. 12
3. KM-1301SRH-E (remote air-cooled)....................................................................... 13
B. Sequence of Operation................................................................................................ 14
1. Sequence Cycles and Shutdown............................................................................ 14
a) 1-Minute Fill Cycle............................................................................................. 14
b) Initial Harvest Cycle ......................................................................................... 14
c) Freeze Cycle..................................................................................................... 15
d) Pump-Out Cycle................................................................................................ 15
e) Harvest Cycle.................................................................................................... 15
f) Shutdown........................................................................................................... 15
2. Sequence Flow Chart............................................................................................. 17
C. Control Board............................................................................................................... 18
1. Control Board Layout.............................................................................................. 19
a) LED Lights and Audible Alarm Safeties............................................................ 20
2. Controls and Adjustments....................................................................................... 21
a) Default Dip Switch Settings............................................................................... 21
b) Harvest Timer (S4 dip switch 1 & 2).................................................................. 21
c) Pump-Out Timer (S4 dip switch 3 & 4).............................................................. 22
d) Pump-Out Frequency Control (S4 dip switch 5 & 6)......................................... 22
e) Harvest Pump Timer (S4 dip switch 7).............................................................. 23
f) Factory Use (S4 dip switch 8)............................................................................ 23
g) Freeze Timer (S4 dip switch 9 & 10)................................................................. 23
h) Float Switch Control (S5 dip switch 1)............................................................. 24
i) Refill Counter (S5 dip switch 2 through 5).......................................................... 24
D. Control Switch.............................................................................................................. 24
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