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FM-251AFE
Hoshizaki FM-251AFE Service Manual
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NO.
E2BB-695
ISSUED:
JAN.24,2006
REVISED:
APR.18,201
1
SER
VICE MANUAL
HOSHIZAKI
MODULAR ICE MAKER
MODEL
FM-251AFE(-N)
FM-251AWFE(-N)
FM-481AGE(-N)
FM-481AWGE(-N)
2
Table of Contents
Table of Contents
2
Specifications
5
Features
5
[A] Low Voltage
5
[B] Overload Protection
5
[C] Overload Error
5
[D] User Reset
5
[E] Error Codes And Records
5
[F] Other Information
6
[G] Change Of Ice Type
6
Dimensions/Specifications
7
[A] Fm-251AFE
7
[B] Fm-251AFE
8
[C] Fm-251AWFE
9
[D] Fm-251AWFE
10
[E] Fm-481AGE
11
[F] Fm-481AGE
12
[G] Fm-481AWGE
13
[H] Fm-481AWGE-N
14
[I] With Storage Bin (B-300_F)
15
Construction
16
[A] Fm-251AFE/AWFE(-N)
16
[B] Fm-481AGE/AWGE(-N)
17
Maintenance And Cleaning Instructions
18
Extruding Head (Upper Bearing), Housing (Lower Bearing)
18
Mechanical Seal
18
Gear Motor
19
Condenser
19
Air Filter (Air-Cooled Model Only)
19
Water Valve
20
Cleaning Of Water System
21
Periodical Cleaning
23
Technical Information
24
Water Circuit And Refrigerant Circuit
24
[A] Fm-251AFE(-N)
24
[B] Fm-251AWFE(-N)
25
[C] Fm-481AGE(-N)
26
[D] Fm-481AWGE(-N)
27
Wiring Diagram
28
[A] Wiring Diagram
28
[B] Control Box Layout
31
Icemaking Mechanism
34
[A] Evaporator (Casing)
34
[B] Auger
34
[C] Extruding Head (Bearing)
35
[D] Housing
35
[E] Mechanical Seal
35
[F] Coupling (Spline Joint)
35
[G] Gear Motor
35
[H] Belt Heater
35
[I] Removable Flange
35
[J] Sealing Bolt
36
Water Circuit
36
[A] Reservoir (Water Tank)
36
[B] Float Switch
36
[C] Control Water Valve
36
[D] Flush Water Valve
37
[E] Water Regulator
37
[F] Draining Icemaker In Subfreezing Conditions
37
Refrigeration Circuit
38
[A] Applicable Parts
38
[B] Service Instructions
38
[C] Refrigerant
39
[D] Compressor
39
[E] Evaporator Casing
39
[F] Condenser
39
[G] Condenser Cooling Fan Motor
40
[H] Water Regulator
41
[I] Drier
41
[J] Thermostatic Expansion Valve
41
Electric Circuit
42
[A] Basic Operation
42
[B] Timing Chart
42
[C] Sequence
44
[D] Operation Board
62
[E] Controller Board
62
[F] Surge Absorber
63
[G] Capacitor - XY FILTER
63
[H] Bin Control Switch
63
[I] Chute Switch
64
[J] Deicing Heater (Belt Heater)
64
Operation Board
65
[A] User Operation
65
[B] Service Operation
65
Protectors
69
[A] Indication
69
[B] Protectors
69
Interlock Errors
72
Error Codes
72
Performance Data
74
[A] Fm-251AFE
74
[B] Fm-251AFE-N
75
[C] Fm-251AWFE
76
[D] Fm-251AWFE-N
77
[E] Fm-481AGE
78
[F] Fm-481AGE-N
79
[G] Fm-481AWGE
80
[H] Fm-481AWGE-N
81
Service Diagnosis
82
No Ice Production
82
Low Ice Production
84
Others
84
Removal And Replacement Of Components
86
Service For Refrigerant Lines
86
[A] Service Information
86
[B] Refrigerant Recovery
87
[C] Evacuation And Recharge
87
Brazing
88
Compressor
89
Drier
90
Expansion Valve
91
Water Regulating Valve - Water-Cooled Model Only
92
Evaporator Assembly
93
Control Water Valve
97
Flush Water Valve
98
Controller Board
99
[A] Modification
99
[B] Replacement
99
Other manuals for Hoshizaki FM-251AFE
Instruction Manual
37 pages
Installation Manual
27 pages
4
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Hoshizaki FM-251AFE Specifications
General
Type
Air-cooled
Condenser
Air-cooled
Ice Thickness
Adjustable
Refrigerant
R404A
Ice Type
Flake
Power Supply
115V/60Hz/1Ph
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