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KM-250BWF
Hoshizaki KM-250BWF User Manual
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1
HOSHIZAKI
CRESCENT CUBER
MODEL
SER
VICE MANU
AL
KM-250BAF
KM-250BWF
NO.:
ISSUED:
REVISED:
July 24, 2000
73094
December 22, 2004
2
Table of Contents
Table of Contents
3
Specifications
5
Km-250Baf
5
Km-250Bwf
6
General Information
7
Construction
7
[A] KM-250BAF
7
[B] KM-250BWF
8
Controller Board
9
[A] Solid-State Control
9
[B] Controller Board
9
[C] Sequence
13
[D] Controls and Adjustments
15
[E] Checking the Controller Board
18
Technical Information
20
Water Circuit and Refrigerant Circuit
20
[A] KM-250BAF
20
[B] KM-250BWF
21
Wiring Diagram
22
Km-250Baf, Km-250Bwf
22
Timing Chart
23
Performance Data
25
[A] KM-250BAF
25
[B] KM-250BWF
26
Service Diagnosis
27
No Ice Production
27
Evaporator Is Frozen up
30
Low Ice Production
31
Abnormal Ice
31
Other
31
Removal and Replacement of Components
32
Service for Refrigerant Lines
32
[A] Refrigerant Recovery
32
[B] Evacuation and Recharge [R-404A]
32
Brazing
33
Removal and Replacement of Compressor
34
Removal and Replacement of Drier
35
Removal and Replacement of Expansion Valve
36
Removal and Replacement of Hot Gas Valve
37
Removal and Replacement of Evaporator
38
Removal and Replacement of Water Regulating Valve - Water-Cooled Model Only
39
Adjustment of Water Regulating Valve - Water-Cooled Model Only
40
Removal and Replacement of Thermistor
41
Removal and Replacement of Fan Motor - Except Water-Cooled Model
42
Removal and Replacement of Water Valve
42
Removal and Replacement of Pump Motor
43
Removal and Replacement of Float Switch
44
Removal and Replacement of Spray Tubes
44
Cleaning and Maintenance
45
Preparing the Icemaker for Long Storage
45
Cleaning and Sanitizing Instructions
47
[A] Cleaning Solution
47
[B] Cleaning Procedure
47
[C] Sanitizing Solution
49
[D] Sanitizing Procedure
49
Maintenance
51
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Hoshizaki KM-250BWF Specifications
General
Condenser
Air-cooled
Refrigerant
R-404A
Voltage
115V
Production Capacity
250 lbs/day
Ice Type
Cube
Power Supply
115V/60Hz/1Ph
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