Hoshizaki F-1500MA-C, Service Manual, Page: 3 / 70

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CONTENTS
I. Specifications .................................................................................................................... 5
1. Icemaker ....................................................................................................................... 5
F-1500MAH ................................................................................................................ 5
F-1500MAH-C ............................................................................................................ 6
F-1500MWH ............................................................................................................... 7
F-1500MWH-C ........................................................................................................... 8
F-1500MRH ............................................................................................................... 9
F-1500MRH-C .......................................................................................................... 10
2. Condenser Unit .......................................................................................................... 11
URC-12F .................................................................................................................. 11
II. General Information ........................................................................................................ 13
1. Construction ............................................................................................................... 13
F-1500MAH(-C)........................................................................................................ 13
F-1500MWH(-C) ....................................................................................................... 14
F-1500MRH(-C) ....................................................................................................... 15
2. Control Box Layout ..................................................................................................... 16
F-1500MAH(-C)........................................................................................................ 16
F-1500MWH(-C), F-1500MRH(-C) ........................................................................... 17
III. Technical Information ..................................................................................................... 18
1. Water Circuit and Refrigeration Circuit ........................................................................ 18
F-1500MAH(-C)........................................................................................................ 18
F-1500MWH(-C) ....................................................................................................... 19
F-1500MRH(-C) ....................................................................................................... 20
2. Wiring Diagrams ......................................................................................................... 21
F-1500MAH(-C)........................................................................................................ 21
F-1500MWH(-C) ....................................................................................................... 22
F-1500MRH(-C) ....................................................................................................... 23
3. Sequence of Electrical Circuit .................................................................................... 24
4. Timing Chart ............................................................................................................... 32
5. Performance Data ....................................................................................................... 37
F-1500MAH .............................................................................................................. 37
F-1500MAH-C .......................................................................................................... 38
F-1500MWH ............................................................................................................. 39
F-1500MWH-C ......................................................................................................... 40
F-1500MRH ............................................................................................................. 41
F-1500MRH-C .......................................................................................................... 42
IV. Adjustment of Components ............................................................................................ 43
1. Adjustment of Water Regulating Valve (water-cooled model only) .............................. 43
2. Adjustment of Flake Size ............................................................................................ 44
3. Adjustment of Cubelet Size ........................................................................................ 44
V. Service Diagnosis........................................................................................................... 45
1. No Ice Production ....................................................................................................... 45
2. Low Ice Production ..................................................................................................... 48
3. Other ........................................................................................................................... 49