Hoshizaki F-801MAH-C User manual

SERVICE MANUAL

June 7, 2004

MODEL

HOSHIZAKI

MODULAR FLAKER

F-801MAH/-C

F-801MWH/-C

73113

June 15, 2005

ISSUED:

NO:

REVISED:

2

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: 1-800-233-1940 Technical Service

(770) 487-2331

Fax: 1-800-843-1056

(770) 487-3360

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

3

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

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.

4

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

5

I. Specification

1. Icemaker

F-801MAH

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

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

T

- DRAIN Outlet 3/4" FPT

ICE MAKING SYSTEM Auger type

HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )

ICE MAKING WATER 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

r

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 Pressure 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

50

WATER TEMP. (°F)

70 90

6

F-801MWH

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

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/cm)

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

T

Cond. Outlet 3/8" FPT

ICE MAKING SYSTEM Auger type

HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )

ICE MAKING WATER 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

r

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 Protecto

r

GEAR MOTOR PROTECTION Fuse (3A)

REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

LOW W ATE R PROTECTION Float Switc h and Time

r

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

50

WATER TEMP. (°F)

70 90

7

F-801MAH-C

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

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/cm)

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

T

ICE MAKING SYSTEM Auger type

HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )

ICE MAKING WATER 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

r

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 Protecto

r

GEAR MOTOR PROTECTION Fuse (3A)

REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

LOW W ATE R PROTECTION Float Switc h and Time

r

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

50

WATER TEMP. (°F)

70 90

1lb 12oz

8

F-801MWH-C

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

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

T

Cond. Inlet 1/2" FP

T

- DRAIN Outlet 3/4" FPT Cond. Outlet 3/8" FP

T

ICE MAKING SYSTEM Auger type

HARVESTING SYSTEM Direct Driven Auger ( 1/4HP Gear Motor )

ICE MAKING WATER 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

r

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 Pressure 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 1oz

50

WATER TEMP. (°F)

70 90

9

II. General Information

1. Construction

F-801MAH/-C

Water Supply

Inlet

Junction Box

Condenser

Fan Motor

Compressor

Drier

Control Water Valve

Bin Control

Ice Chute

Evaporator

Expansion

Valve

Flush Water

Valve

Control Box

Gear Motor

10

F-801MWH/-C

Water Supply

Inlet

Junction Box

Water

Regulator

Compressor

Drier

Control Water Valve

Bin Control

Ice Chute

Evaporator

Expansion

Valve

Flush Water

Valve

Control Box

Gear Motor

11

2. Control Box Layout

F-801MAH/-C

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

the parts list.

PRESSURE

SWITCH

CONNECTOR

START

CAPACITOR

RUN

CAPACITOR

WATER CONTROL

RELAY

FLUSH

TIMER

TRANSFORMER

GEAR

MOTOR

RELAY

GEAR

MOTOR

CAP.

FLUSH

ICE

FAN

MOTOR

CAP

GEAR MOTOR

PROTECT RELAY

STARTER

CONTROL

TIMER

FUSE

(GEAR MOTOR

)

FUSE

POWER

SWITCH

FLUSH

SWITCH

CIRCUIT PROTECT

RELAY

12

F-801MWH/-C

PRESSURE

SWITCH

CONNECTOR

START

CAPACITOR

RUN

CAPACITOR

WATER CONTROL

RELAY

TRANSFORMER

GEAR

MOTOR

RELAY

FLUSH

ICE

GEAR MOTOR

PROTECT RELAY

STARTER

CONTROL

TIMER

FLUSH

SWITCH

POWER

SWITCH

FUSE

(GEAR MOTOR)

FLUSH

TIMER

CIRCUIT PROTECT

RELAY

GEAR

MOTOR

CAP.

13

III. Technical Information

1. Water Circuit and Refrigeration Circuit

F-801MAH/-C

14

F-801MWH/-C

15

2. Wiring Diagrams

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

16

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.

17

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

18

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

19

[d] Bin control operates, and about 6 sec. later, compressor and gear motor stop

simultaneously.

20

[e] Low water (except water-cooled model).

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