Hoshizaki KM-630MWH, KM-630MRH, KM-630MAH service manual Contents

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

CONTENTS
I. SPECIFICATIONS	5
1. KM-630MAH	5
2a. KM-630MWH Serial #L00001D - M20270B	6
2b. KM-630MWH Serial #M20301E -	7
3. KM-630MRH	8
4. CONDENSER UNIT	9
URC-6F	9
II. GENERAL INFORMATION	11
1. CONSTRUCTION	11
[a] KM-630MAH	11
[b] KM-630MWH	12
[c] KM-630MRH	13
2. CONTROLLER BOARD	14
[a] SOLID-STATE CONTROL	14
[b] CONTROLLER BOARD	14
[c] SEQUENCE	18
[d] CONTROLS AND ADJUSTMENTS	21
[e] CHECKING THE CONTROLLER BOARD	25
3. MECHANICAL BIN CONTROL	26
[a] PROXIMITY SWITCH	26
[b] EXPLANATION OF OPERATION	26
[c] TROUBLESHOOTING (MECHANICAL BIN CONTROL ONLY)	27
III. TECHNICAL INFORMATION	28
1. WATER CIRCUIT AND REFRIGERANT CIRCUIT	28
[a] KM-630MAH	28
[b] KM-630MWH	29
[c] KM-630MRH	30
2. WIRING DIAGRAMS	31
[a1] KM-630MAH (with auxiliary codes L-0, M-0, and M-1) and KM-630MWH
(with auxiliary codes L-0,M-0,M-1, and M-2)	31
[a2] KM-630MAH (with auxiliary codes M-2 and after) and KM-630MWH
(with auxiliary codes M-3 and after)	32
[b1] KM-630MRH (with auxiliary codes L-0,M-0,M-1)	33
[b2] KM-630MRH (with auxiliary codes M-2 and after)	34
3. TIMING CHART	35
4. PERFORMANCE DATA	37
[a] KM-630MAH	37
[b1] KM-630MWH Serial #L00001D - M20270B	38
[b2] KM-630MWH Serial #M20301E -	39
[c] KM-630MRH	40

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