Hoshizaki F-801MWH-C, F-801MAH-C User Manual

NO:

ISSUED:

REVISED:

73113

June 7, 2004

June 15, 2005

HOSHIZAKI

MODULAR FLAKER

MODEL

F-801MAH/-C
F-801MWH/-C

SERVICE MANUAL

IMPORTANT

Only qualified service technicians should attempt to service or maintain this
icemaker. No service or maintenance should be undertaken until the technician
has thoroughly read this Service Manual.

HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
service and maintenance of the icemaker.

Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call or write to the HOSHIZAKI Technical Support Department for
assistance.

HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269

Attn: HOSHIZAKI Technical Support Department

Phone: [phone] Technical Service

[phone]

Fax: [phone]

[phone]

Web Site: www.hoshizakiamerica.com

Note: To expedite assistance, all correspondence/communication MUST include the

following information:

• Model Number

• Serial Number

• Complete and detailed explanation of the problem

2

Please review this manual. It should be read carefully before the icemaker is serviced or
maintenance operations are 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. Specification ...................................................................................................................... 5

1. Icemaker ....................................................................................................................... 5

F-801MAH.................................................................................................................. 5

F-801MWH ................................................................................................................. 6

F-801MAH-C .............................................................................................................. 7

F-801MWH-C ............................................................................................................. 8

II. General Information .......................................................................................................... 9

1. Construction .................................................................................................................9

F-801MAH/-C ............................................................................................................. 9

F-801MWH/-C .......................................................................................................... 10

2. Control Box Layout ..................................................................................................... 11

F-801MAH/-C ........................................................................................................... 11

F-801MWH/-C .......................................................................................................... 12

III. Technical Information ..................................................................................................... 13

1. Water Circuit and Refrigeration Circuit........................................................................ 13

F-801MAH/-C ........................................................................................................... 13

F-801MWH/-C .......................................................................................................... 14

2. Wiring Diagrams ......................................................................................................... 15

F-801MAH/-C, F-801MWH/-C .................................................................................. 15

3. Sequence of Electrical Circuit .................................................................................... 16

4. Timing Chart ............................................................................................................... 26

5. Performance Data ....................................................................................................... 29

F-801MAH................................................................................................................ 29

F-801MWH ............................................................................................................... 30

F-801MAH-C ............................................................................................................ 31

F-801MWH-C ........................................................................................................... 32

IV. Adjustment of Components ............................................................................................ 33

1. Adjustment of Water Regulating Valve (water-cooled model only) .............................. 33

2. Adjustment of Flake Size ............................................................................................ 34

V. Service Diagnosis ........................................................................................................... 35

1. No Ice Production ....................................................................................................... 35

2. Low Ice Production ..................................................................................................... 37

3. Other ........................................................................................................................... 38

VI. Removal and Replacement of Components .................................................................. 39

1. Service for Refrigerant Lines ...................................................................................... 39

[a] Refrigerant Recovery........................................................................................... 39

[b] Evacuation and Recharge [R-404A] .................................................................... 39

2. Brazing ....................................................................................................................... 40

3. Removal and Replacement of Compressor ................................................................ 41

4. Removal and Replacement of Drier ........................................................................... 42

3

5. Removal and Replacement of Expansion Valve......................................................... 43

6. Removal and Replacement of Water Regulating Valve (water-cooled model only) .... 44

7. Removal and Replacement of Evaporator Assembly ................................................. 45

8. Removal and Replacement of Fan Motor ................................................................... 49

9. Removal and Replacement of Control Water Valve .................................................... 49

10. Removal and Replacement of Flush Water Valve ..................................................... 50

VII. Cleaning and Maintenance .......................................................................................... 51

1. Preparing the Icemaker for Long Storage ................................................................... 51

2. Cleaning and Sanitizing Instructions .......................................................................... 52

[a] Cleaning Solution ................................................................................................ 52

[b] Cleaning Procedure ............................................................................................ 53

[c] Sanitizing Solution............................................................................................... 54

[d] Sanitizing Procedure - Initial................................................................................ 54

[e] Sanitizing Procedure - Final ................................................................................ 55

3. Maintenance ............................................................................................................... 57

4

I. Specification

T

r

1. Icemaker

F-801MAH

AC SUPPLY VOLTAGE 115/60/1
COMPRESSOR 120 V 9.4 RLA 51 LRA
GEAR MOTOR 120 V 3 FLA 1/4 HP
FAN MOTOR 115 V 0.85 FLA 1/15 HP
OTHER 120 V 0.03 A
MAXIMUM FUSE SIZE 20 A
MAX. HACR BREAKER (USA ONLY) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
APPROXIMATE ICE PRODUCTION Ambient
PER 24 HR. Temp.(°F)
lbs./day ( kg/day ) 70 * 823 (373) 786 (357) 748 (339)
Reference without *marks 80 711 (323) 677 (307) 644 (292)

90 613 (278) * 599 (272) 555 (252)

100 528 (239) 502 (228) * 471 (214)
SHAPE OF ICE Flake
ICE QUALITY Approx. 70%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITY N/A
ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F
ELECTRIC W (kWH/100 lbs.) 1131 (4.5) 1089 (3.2)
POTABLE WATER 72 (12) 99 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-15/16" (560 x 695 x 658mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 176 lbs. ( 80 kg ), Shipping 207 lbs. ( 94 kg )
CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FP

- DRAIN Outlet 3/4" FPT
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )
ICE MAKING W ATER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic , Model RS43-C2E-CAA
CONDENSER Air-cooled, Fin and Tube Type
EVAPORATOR Copper Tube on Cylinde
REFRIGERANT CONTROL Thermostatic Expansion Valve
REFRIGERANT CHARGE R-404A, (800 g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
PC BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protector
GEAR MOTOR PROTECTION Fuse (3A)
REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pres sure Control Switch
LOW WATER PROTECTION Float Switch and Timer
ACCESSORIES - SUPPLIED Spare Fuse

- REQUIRED Ice Storage Bin
OPERATING CONDITIONS VOLTAGE RANGE 104 - 127 V

AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESSURE 10 - 113 PSIG

1lb 12oz

WATER TEMP. (°F)

50

70 90

We reserve the right to make changes in specifications and design without prior notice.

5

F-801MWH

T

r

r

r

AC SUPPLY VOLTAGE 115/60/1
COMPRESSOR 120 V 8.5 RLA 51 LRA
GEAR MOTOR 120 V 3 FLA 1/4 HP
OTHER 120 V 0.03 A
MAXIMUM FUSE SIZE 20 A
MAX. HACR BREAKER (USA ONLY) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
APPROXIMATE ICE PRODUCTION Ambient
PER 24 HR. Temp.(°F)
lbs./day ( kg/day ) 70 * 720 (327) 693 (315) 677 (307)
Reference without *marks 80 661 (300) 646 (293) 630 (286)

90 616 (279) * 605 (274) 587 (266)

100 573 (260) 560 (254) * 520 (236)
SHAPE OF ICE Flake
ICE QUALITY Approx. 70%, Ice (90/70°F, Conductivity 200 µs/c m)
APPROXIMATE STORAGE CAPACITY N/A
ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F
ELECTRIC W (kWH/100 lbs.) 1078 (4.3) 1076 (3.6)
POTABLE WATER 72 (12) 86 (12)
WATER-COOLED CONDENSER 360 (60) 219 (31)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-15/16" (560 x 695 x 658mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 176 lbs. ( 80 kg ), Shipping 207 lbs. ( 94 kg )
CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FPT Cond. Inlet 1/2" FPT

- DRAIN Outlet 3/4" FP
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )
ICE MAKING WA TER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic, Model RS43-C2E-CAA
CONDENSER Water-cooled, tube in tube type
EVAPORATOR Copper Tube on Cylinde
REFRIGERANT CONTROL Thermostatic Ex pansion Valve
REFRIGERANT CHARGE R-404A, (470 g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
PC BOARD CIRCUIT P ROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protecto
GEAR MOTOR PROTECTION Fuse (3A)
REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch
LO W W A TER P RO TECTIO N Float S wi tch and Tim e
ACCESSORIES - SUPPLIED Spare Fuse

- REQUIRED Ice Storage Bin
OPERATING CONDITIONS VOLTAGE RANGE 104 - 127 V

AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESSURE 10 - 113 PSIG

1lb 1oz

WATER TEMP. (°F)

50

70 90

Cond. Outlet 3/8" FPT

We reserve the right to make changes in specifications and design without prior notice.

6

F-801MAH-C

T

r

r

r

AC SUPPLY VOLTAGE 115/60/1
COMPRESSOR 120 V 9.4 RLA 51 LRA
GEAR MOTOR 120 V 3 FLA 1/4 HP
FAN MOTOR 115 V 0.85 FLA 1/15 HP
OTHER 120 V 0.03 A
MAXIMUM FUSE SIZE 20 A
MAX. HACR BREAKER (USA ONLY) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
APPROXIMATE ICE PRODUCTION Ambient
PER 24 HR. Temp.(°F)
lbs./day ( kg/day ) 70 * 752 (341) 728 (330) 688 (312)
Reference without *marks 80 650 (295) 614 (279) 580 (263)

90 548 (249) * 552 (250) 490 (222)

100 463 (210) 437 (198) * 405 (184)
SHAPE OF ICE Cubelet
ICE QUALITY Approx. 80%, Ice (90/70°F, Conductivity 200 µs/c m)
APPROXIMATE STORAGE CAPACITY N/A
ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F
ELECTRIC W (kWH/100 lbs.) 1169 (5.1) 1110 (3.5)
POTABLE WATER 66 (12) 90 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-15/16" (560 x 695 x 658mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 176 lbs. ( 80 kg ), Shipping 207 lbs. ( 94 kg )
CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FP
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )
ICE MAKING WA TER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic, Model RS43-C2E-CAA
CONDENSER Air-cooled, Fin and Tube Type
EVAPORATOR Copper Tube on Cylinde
REFRIGERANT CONTROL Thermostatic Ex pansion Valve
REFRIGERANT CHARGE R-404A, (800 g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
PC BOARD CIRCUIT P ROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protecto
GEAR MOTOR PROTECTION Fuse (3A)
REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch
LO W W A TER P RO TECTIO N Float S wi tch and Tim e
ACCESSORIES - SUPPLIED Spare Fuse

- REQUIRED Ice Storage Bin
OPERATING CONDITIONS VOLTAGE RANGE 104 - 127 V

AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESSURE 10 - 113 PSIG

1lb 12oz

WATER TEMP. (°F)

50

70 90

We reserve the right to make changes in specifications and design without prior notice.

7

F-801MWH-C

T

T

T

r

AC SUPPLY VOLTAGE 115/60/1
COMPRESSOR 120 V 8.5 RLA 51 LRA
GEAR MOTOR 120 V 3 FLA 1/4 HP
OTHER 120 V 0.03 A
MAXIMUM FUSE SIZE 20 A
MAX. HACR BREAKER (USA ONLY) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
APPROXIMATE ICE PRODUCTION Ambient
PER 24 HR. Temp.(°F)
lbs./day ( kg/day ) 70 * 645 (293) 620 (281) 608 (276)
Reference without *marks 80 596 (270) 585 (265) 574 (260)

90 563 (255) * 550 (249) 541 (246)

100 531 (241) 521 (236) * 485 (220)
SHAPE OF ICE Cubelet
ICE QUALITY Approx. 80%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITY N/A
ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F
ELECTRIC W (kWH/100 lbs.) 1075 (4.7) 1083 (4.1)
POTABLE WATER 66 (12) 77 (12)
WATER-COOLED CONDENSER 302 (55) 199 (31)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-15/16" (560 x 695 x 658mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 176 lbs. ( 80 kg ), Shipping 207 lbs. ( 94 kg )
CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FP

- DRAIN Outlet 3/4" FPT Cond. Outlet 3/8" FP
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )
ICE MAKING W ATER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRES SOR Hermetic , Model RS43-C2E-CAA
CONDENSER Water-cooled, tube in tube type
EVAPORATOR Copper Tube on Cylinde
REFRIGERANT CONTROL Thermostatic Expansion Valve
REFRIGERANT CHARGE R-404A, (470 g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
PC BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protector
GEAR MOTOR PROTECTION Fuse (3A)
REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pres sure Control Switch
LOW WATER PROTECTION Float Switch and Timer
ACCESSORIES - SUPPLIED Spare Fuse

- REQUIRED Ice Storage Bin
OPERATING CONDITIONS VOLTAGE RANGE 104 - 127 V

AMBIENT TEMP. 45 - 100° F
WATER SUPPLY TEMP. 45 - 90° F
WATER SUPPLY PRESSURE 10 - 113 PSIG

We reserve the right to make changes in specifications and design without prior notice.

1lb 1oz

WATER TEMP. (°F)

50

70 90

Cond. Inlet 1/2" FP

8

II. General Information

1. Construction

F-801MAH/-C

Control Water Valve

Water Supply
Inlet

Bin Control

Ice Chute

Evaporator

Expansion
Valve

Flush Water
Valve

Control Box

Gear Motor

Junction Box

Condenser

Fan Motor

Compressor

Drier

9

F-801MWH/-C

Control Water Valve

Water Supply
Inlet

Bin Control

Ice Chute

Evaporator

Expansion
Valve

Flush Water
Valve

Control Box

Gear Motor

Junction Box

Water
Regulator

Compressor

Drier

10

2. Control Box Layout

)

F-801MAH/-C

CONNECTOR

PRESSURE
SWITCH

FLUSH
TIMER

GEAR
MOTOR
RELAY

CIRCUIT PROTECT
RELAY

GEAR MOTOR
PROTECT RELAY

WATER CONTROL
RELAY

FAN
MOTOR
CAP

STARTER

TRANSFORMER

FLUSH

GEAR
MOTOR
CAP.

FLUSH
SWITCH

ICE

POWER
SWITCH

START
CAPACITOR

RUN
CAPACITOR

CONTROL
TIMER

Note: The above component names are identical with the wiring label, but not with

the parts list.

FUSE

FUSE
(GEAR MOTOR

11

F-801MWH/-C

CONNECTOR

PRESSURE
SWITCH

FLUSH
TIMER

GEAR
MOTOR
RELAY

CIRCUIT PROTECT
RELAY

GEAR MOTOR
PROTECT RELAY

WATER CONTROL
RELAY

STARTER

TRANSFORMER

GEAR
MOTOR
CAP.

FLUSH

ICE

FLUSH
SWITCH

POWER
SWITCH

START
CAPACITOR

RUN
CAPACITOR

CONTROL
TIMER

FUSE

FUSE
(GEAR MOTOR)

12

III. Technical Information

1. Water Circuit and Refrigeration Circuit

F-801MAH/-C

13

F-801MWH/-C

14

2. Wiring Diagrams

F-801MAH/-C, F-801MWH/-C

15

3. Sequence of Electrical Circuit

[a] When power switch is moved to “ON” position and flush switch to “ICE” position,
water starts to be supplied to reservoir.

16

[b] When reservoir has been filled, gear motor starts immediately.

17

[c] Compressor starts about 60 sec. after gear motor starts.

18