Hoshizaki F-800MAF Manuel de service

NO:
ISSUED:
REVISED:

73080

JAN. 20, 1999

DEC. 17, 2003

HOSHIZAKI

MODULAR FLAKER

MODEL

F-800MAF/-C
F-800MWF/-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 T echnical Support Department

Phone: [phone] T echnical Service

[phone]

Fax: [phone]

NOTE: T o 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

PAGE

I. SPECIFICATIONS .................................................................................................... 5

1. ICEMAKER............................................................................................................. 5

F-800MAF .............................................................................................................. 5

F-800MWF ............................................................................................................. 6

F-800MAF-C........................................................................................................... 7

F-800MWF-C.......................................................................................................... 8

2. CONDENSER UNIT ............................................................................................... 9

URC-6F .................................................................................................................. 9

II. GENERAL INFORMATION .................................................................................... 11

1. CONSTRUCTION................................................................................................. 11

F-800MAF/-C........................................................................................................ 11

F-800MWF/-C....................................................................................................... 12

2. CONTROL BOX LAYOUT .................................................................................... 13

F-800MAF/-C........................................................................................................ 13

F-800MWF/-C....................................................................................................... 14

III. TECHNICAL INFORMATION................................................................................ 15

1. WATER CIRCUIT AND REFRIGERANT CIRCUIT .............................................. 15

F-800MAF/-C........................................................................................................ 15

F-800MWF/-C....................................................................................................... 16

2. WIRING DIAGRAM .............................................................................................. 1 7

F-800MAF/-C, F-800MWF/-C ............................................................................... 17

3. SEQUENCE OF ELECTRICAL CIRCUIT............................................................. 18

4. TIMING CHART.................................................................................................... 28

5. PERFORMANCE DATA ....................................................................................... 31

F-800MAF ............................................................................................................ 31

F-800MWF ........................................................................................................... 32

F-800MAF-C......................................................................................................... 33

F-800MWF-C........................................................................................................ 34

IV. ADJUSTMENT OF COMPONENTS ..................................................................... 35

1. ADJUSTMENT OF WATER REGULATING VALVE

- WATER-COOLED MODEL ONLY ..................................................................... 35

2. ADJUSTMENT OF FLAKE SIZE.......................................................................... 36

3

V. SERVICE DIAGNOSIS .......................................................................................... 37

1. NO ICE PRODUCTION ........................................................................................ 37

2. LOW ICE PRODUCTION ..................................................................................... 39

3. OTHERS............................................................................................................... 40

VI. REMOVAL AND REPLACEMENT OF COMPONENTS ....................................... 41

1. SERVICE FOR REFRIGERANT LINES ............................................................... 41

[a] REFRIGERANT RECOVERY ......................................................................... 4 1

[b] EVACUATION AND RECHARGE ................................................................... 41

2. BRAZING.............................................................................................................. 42

3. REMOVAL AND REPLACEMENT OF COMPRESSOR....................................... 43

4. REMOVAL AND REPLACEMENT OF DRIER ..................................................... 44

5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE............................... 45

6. REMOVAL AND REPLACEMENT OF WATER REGULATING VALVE

- WATER-COOLED MODEL ONLY ..................................................................... 46

7. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE

REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLY....................... 47

8. REMOVAL AND REPLACEMENT OF EVAPORATOR ASSEMBLY ................... 48

9. REMOVAL AND REPLACEMENT OF FAN MOTOR ........................................... 5 2

10. REMOVAL AND REPLACEMENT OF CONTROL WATER VALVE .................... 52

11. REMOVAL AND REPLACEMENT OF FLUSH WATER VALVE.......................... 53

VII. MAINTENANCE AND CLEANING INSTRUCTIONS........................................... 54

1. PREPARING THE ICEMAKER FOR LONG STORAGE ...................................... 54

2. CLEANING INSTRUCTIONS ............................................................................... 56

3. MAINTENANCE ................................................................................................... 60

4

I. SPECIFICATION

1. ICEMAKER

F-800MAF

AC SUPPLY VOLTAGE 115-120/60/1
COMPRESSOR 120 V 9.2 RLA 60 LRA
GEAR MOTOR 120 V 1.6 FLA 1/6 HP
FAN MOTOR 115 V 0.85FLA 1/15 HP
OTHER 120 V 0.03A
MAXIMUM FU SE SIZE 20 A
MAX. HACR BREAKER (USA ONL Y) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
APPROXIMATE ICE PRODUCTION Ambient WAT ER TEMP. (°F)
PER 24 HR. Temp.(°F)507090
lbs./day ( kg/day ) 70 *800 (363) 765 (347) 735 (334)
Reference without *marks 80 710 (321) 680 (309) 655 (297)

90 630 (286) *615 (279) 585 (264)

100 560 (254) 540 (245) *505 (229)
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.) 1205 (4.7) 1175 (3.5)
POTABLE WATER 74 (12) 96 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic, Model RS55-C1E-PAA
CONDENSER Air-cooled, Fin and tube type
EVAPORATOR Copper Tube on Cylinder
REFRIGERANT CONTROL Thermostatic Expansion Valve
REFRIGERANT CHARGE R-404A, 1 lb.10oz. (750g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protector
GEAR MOTOR PROTECTION Manual reset Circuit Breaker or Fuse
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

DRAWING NO. (DIMENSION) 3A0985

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

5

F-800MWF

AC SUPPLY VOLTAGE 115-120/60/1
COMPRESSOR 120 V 9.2 RLA 60 LRA
GEAR MOTOR 120 V 1.6 FLA 1/6 HP
OTHER 120 V 0.03A
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 WATER TEMP. (°F)
PER 24 HR. Temp.(°F) 50 70 90
lbs./day ( kg/day ) 70 *720 (327) 695 (314) 680 (309)
Reference without *marks 80 670 (304) 660 (299) 650 (294)

90 640 (290) *625 (284) 620 (280)

100 605 (276) 595 (271) *555 (252)
SHAPE OF ICE Flake
ICE QUALITY Approx. 70%, Ice (90/70°F, Conductivity 200 µs/cm)
APPROXIMATE STORAGE CAPACITY N/A
ELECTRIC & WAT ER C ON SUMPTION 90/70°F 70/50°F
ELECTRIC W (kWH/100 lbs.) 1100 (4.2) 1090 (3.6)
POTABLE WATER 75 (12) 86 (12)
WATER-COOLED CONDENSER 539 (86) 318 (44)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTR IC Permanent - Connection

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

- DRAIN Outlet 3/4" FPT Cond. Outlet 3/8" - 18 NPT
ICE MAKIN G SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING W ATER CONTROL Float Switch
COOLING WATER CONTROL Automatic Water Regulator
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic, Model RS55-C1E-PAA
CONDENSER Water-cooled, Tube in tube type
EVAPORATOR Copper Tube on Cylinder
REFRIGERANT CONTROL Thermostatic Expansion Valve
REFRIGERANT CHARGE R-404A, 13oz. (365g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protector
GEAR MOTOR PROTECTION Manual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch
LOW WATER PROTEC TION 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
WAT ER SUPPLY PRESSURE 10 - 113 PSIG

DRAW ING NO . (DIMENSION) 3A0982

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

6

F-800MAF-C

AC SUPPLY VOLTAGE 115-120/60/ 1
COMPRESSOR 120 V 9.2 RLA 60 LRA
GEAR MOTOR 120 V 1.6 FLA 1/6 HP
FAN MOTOR 115 V 0.85FLA 1/15 HP
OTHER 120 V 0.03A
MAXIMUM FUSE SIZE 20 A
MAX. HACR BREAKER (U SA ONLY) 20 A
MAX. CIRC. BREAKER (CANADA ONLY) 20 A
MINIMUM CIRCUIT AMPACITY 20 A
APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F)
PER 24 HR. Temp.(°F) 50 70 90
lbs./day ( kg/day ) 70 *760 (345) 730 (331) 700 (316)
Reference without *marks 80 665 (303) 640 (289) 610 (277)

90 585 (265) *575 (261) 535 (242)

100 510 (231) 490 (221) *455 (206)
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.) 1240 (5.2) 1195 (3.8)
POTABLE WATER 69 (12) 91 (12)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (WxDxH) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRIC Permanent - Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Outlet 3/4" FPT
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROL Float Switch
COOLING WATER CONTROL N/A
BIN CONTR OL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic, Model RS55-C1E-PAA
CONDENSER Air-cooled, Fin and tube type
EVAPORATOR Copper Tube on Cylinder
REFRIGERANT CONTROL Thermostatic Expansion Valve
REFRIGERANT CHARGE R-404A, 1 lb.10oz. (750g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protector
GEAR MOTOR PROTECTION Manual reset Circuit Breaker or Fuse
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

DRAWING NO. (DIMENSION) 3A0985

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

7

F-800MWF-C

AC SUPPLY VOLTAGE 115-120/60/1
COMPRESSOR 120 V 9.2 RLA 60 LRA
GEAR MOTOR 120 V 1.6 FLA 1/6 HP
OTHER 120 V 0.03A
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 WATER TEMP. (°F)
PER 24 HR. Temp.(°F) 50 70 90
lbs./day ( kg/day ) 70 *670 (304) 650 (295) 640 (290)
Reference without *marks 80 625 (284) 615 (279) 605 (274)

90 590 (268) *590 (268) 570 (258)

100 560 (253) 550 (249) *505 (229)
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.) 1155 (4.7) 1140 (4.1)
POTABLE WATER 71 (12) 81 (12)
WATER-COOLED CONDENSER 553 (94) 318 (47)
gal./24HR (gal./100 lbs.)
EXTERIOR DIMENSIONS (Wx DxH ) 22" x 27-3/8" x 25-1/4" (560 x 695 x 642mm)
EXTERIOR FINISH Stainless Steel, Galvanized Steel (Rear)
WEIGHT Net 172 lbs. ( 78 kg ), Shipping 198 lbs. ( 90 kg )
CONNECTIONS - ELECTRIC Perm anent - Connection

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

- DRAIN Outlet 3/4" FPT Cond. Outlet 3/8"-18 NPT
ICE MAKING SYSTEM Auger type
HARVESTING SYSTEM Direct Driven Auger ( 1/6 HP Gear Motor )
ICE MAKING WATER CONTROL Float Switch
COOLING WATER CONTROL Automatic Water Regulator
BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )
COMPRESSOR Hermetic, Model RS55-C1E-PAA
CONDENSER Water-cooled, Tube in tube type
EVAPORATOR Copper Tube on Cylinder
REFRIGERANT CONTROL Thermostatic Expansion Valve
REFRIGERANT CHARGE R-404A, 13oz. (365g)
DESIGN PRESSURE High 427 PSIG, Low 230 PSIG
P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay
COMPRESSOR PROTECTION Auto-reset Overload Protector
GEAR MOTOR PROTECTION Manual reset Circuit Breaker or Fuse
REFRIGERANT CIRCUIT PROT ECTION 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

DRAWING NO. (DIMENSION) 3A0982

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

8

2. CONDENSER UNIT

URC-6F

9

SPECIFICATIONS
MODEL: URC-6F
EXTERIOR Galvanized Steel
DIMENSIONS (W x D x H) 21-15/16" x 15-11/16" x 17-7/8"

(557 x 398 x 454 mm)

REFRIGERANT CHARGE R404A 1 lb. 14 oz. (850 g)

WEIGHT Net 61 lbs. (28 kg)

Shipping 68 lbs. (31 kg)

CONNECTIONS

REFRIGERANT One Shot Couplings (Aeroquip)

ELECTRICAL Permanent Connection
CONDENSER Air-cooled
HEAD PRESSURE CONTROL Condensing Pressure Regulator
AMBIENT CONDITION Min. -20°F - Max. +122°F

(-29°C to +50°C)
Outdoor use

10

II. GENERAL INFORMATION

1. CONSTRUCTION

F-800MAF/-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

11

F-800MWF/-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

12

2. CONTROL BOX LAYOUT

F-800MAF/-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)

13

F-800MWF/-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)

14

III. TECHNICAL INFORMATION

1. WATER CIRCUIT AND REFRIGERATION CIRCUIT

F-800MAF/-C

15

F-800MWF/-C

16

2. WIRING DIAGRAMS

F-800MAF/-C, F-800MWF/-C

17

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.

18

[b] When Reservoir has been filled, Gear Motor starts immediately.

19