Hoshizaki American, Inc. F-500BAF-C User manual

SERVICE MANUAL

NO:

73074

F-500BAF/-C

HOSHIZAKI

SELF-CONTAINED FLAKER

MODEL

ISSUED:

MAR. 2, 1999

REVISED:

DEC. 26, 2003

2

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: (770) 487-3360

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

information:

• Model Number

• Serial Number

• Complete and detailed explanation of the problem

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.

3

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

F-500BAF............................................................................................................... 5

F-500BAF-C ........................................................................................................... 6

II. GENERAL INFORMATION ...................................................................................... 7

1. CONSTRUCTION................................................................................................... 7

F-500BAF, F-500BAF-C......................................................................................... 7

2. ICE MAKING UNIT ................................................................................................. 8

3. CONTROL BOX LAYOUT ...................................................................................... 9

F-500BAF, F-500BAF-C......................................................................................... 9

4. TIMER BOARD..................................................................................................... 10

[a] SOLID-STATE CONTROL .............................................................................. 10

[b] TIMER BOARD ............................................................................................... 10

[c] SEQUENCE .................................................................................................... 11

III. TECHNICAL INFORMATION................................................................................ 14

1. WATER CIRCUIT AND REFRIGERANT CIRCUIT .............................................. 14

F-500BAF, F-500BAF-C....................................................................................... 14

2. WIRING DIAGRAM .............................................................................................. 15

F-500BAF, F-500BAF-C....................................................................................... 15

3. SEQUENCE OF ELECTRICAL CIRCUIT............................................................. 16

F-500BAF, F-500BAF-C....................................................................................... 16

4. TIMING CHART.................................................................................................... 21

5. PERFORMANCE DATA ....................................................................................... 24

F-500BAF............................................................................................................. 24

F-500BAF-C ......................................................................................................... 25

IV. SERVICE DIAGNOSIS ......................................................................................... 26

1. NO ICE PRODUCTION ........................................................................................ 26

2. LOW ICE PRODUCTION ..................................................................................... 29

3. OTHERS............................................................................................................... 30

V. REMOVAL AND REPLACEMENT OF COMPONENTS ........................................ 31

1. SERVICE FOR REFRIGERANT LINES ............................................................... 31

[a] REFRIGERANT RECOVERY ......................................................................... 31

[b] EVACUATION AND RECHARGE ................................................................... 31

2. BRAZING.............................................................................................................. 32

3. REMOVAL AND REPLACEMENT OF COMPRESSOR....................................... 33

4

4. REMOVAL AND REPLACEMENT OF DRIER ..................................................... 34

5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE............................... 35

6. REMOVAL AND REPLACEMENT OF EVAPORATOR ASSEMBLY ................... 36

7. REMOVAL AND REPLACEMENT OF FAN MOTOR ........................................... 40

8. REMOVAL AND REPLACEMENT OF CONTROL WATER VALVE .................... 40

VI. MAINTENANCE AND CLEANING INSTRUCTIONS............................................ 41

1. PREPARING THE ICEMAKER FOR LONG STORAGE ...................................... 41

2. CLEANING INSTRUCTIONS ............................................................................... 42

3. MAINTENANCE ................................................................................................... 46

5

I. SPECIFICATIONS

F-500BAF

AC SUPPLY VOLTAGE 115/60/1

COMPRESSOR 120 V 7.9 RLA 51 LRA

GEAR MOTOR 120 V 1.6 FLA 1/6 HP

FAN MOTOR 120 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 WATER TEMP. (°F)

PER 24 HR. Temp.(°F)507090

lbs./day ( kg/day ) 70 * 478 (217) 458 (208) 438 (199)

Reference without *marks 80 419 (190) 400 (182) 383 (174)

90 366 (166) * 359 (163) 335 (152)

100 320 (145) 306 (139) * 287 (130)

SHAPE OF ICE Flake

ICE QUALITY Approx. 70%, Ice (90/70°F, Conductivity 200 µs/cm)

APPROXIMATE STORAGE CAPACITY 250 lbs.

ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F

ELECTRIC W (kWH/100 lbs.) 900 (6.0) 854 (4.3)

POTABLE WATER 43 (12) 57 (12)

gal./24HR (gal./100 lbs.)

EXTERIOR DIMENSIONS (WxDxH) 38" x 29" x 36" (965 x 735 x 915 mm)

EXTERIOR FINISH PVC Coated Galvanized Steel; Galvanized Steel (Rear);

Stainless Steel (Top)

WEIGHT Net 210 lbs. ( 95 kg ), Shipping 245 lbs. ( 111 kg )

CONNECTIONS - ELECTRIC Permanent Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Drain Pan 3/4" FPT

Bin Drain 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 RS43C1E-CAA

CONDENSER Air-cooled, Fin and tube type

EVAPORATOR Copper Tube on Cylinder

REFRIGERANT CONTROL Thermostatic Expansion Valve

REFRIGERANT CHARGE R-404A, 1 lb. (470 g)

DESIGN PRESSURE High 460 PSIG, Low 290 PSIG

P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay

COMPRESSOR PROTECTION Auto-reset Overload Protector

GEAR MOTOR PROTECTION Manual reset Circuit Breaker

REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

LOW WATER PROTECTION Float Switch and Timer

ACCESSORIES - SUPPLIED Ice Scoop, Spare Fuse

- REQUIRED Legs

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. (DIMENSIONS) 339850---

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

6

F-500BAF-C

AC SUPPLY VOLTAGE 115/60/1

COMPRESSOR 120 V 7.9 RLA 51 LRA

GEAR MOTOR 120 V 1.6 FLA 1/6 HP

FAN MOTOR 120 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 WATER TEMP. (°F)

PER 24 HR. Temp.(°F) 50 70 90

lbs./day ( kg/day ) 70 * 431 (196) 415 (188) 398 (181)

Reference without *marks 80 381 (173) 365 (166) 350 (159)

90 336 (152) * 333 (151) 308 (140)

100 295 (134) 283 (128) * 263 (119)

SHAPE OF ICE Cubelet

ICE QUALITY Approx. 80%, Ice (90/70°F, Conductivity 200 µs/cm)

APPROXIMATE STORAGE CAPACITY 250 lbs.

ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F

ELECTRIC W (kWH/100 lbs.) 903 (6.5) 864 (4.8)

POTABLE WATER 40 (12) 52 (12)

gal./24HR (gal./100 lbs.)

EXTERIOR DIMENSIONS (WxDxH) 38" x 29" x 36" (965 x 735 x 915 mm)

EXTERIOR FINISH PVC Coated Galvanized Steel; Galvanized Steel (Rear);

Stainless Steel (Top)

WEIGHT Net 210 lbs. ( 95 kg ), Shipping 245 lbs. ( 111 kg )

CONNECTIONS - ELECTRIC Permanent Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Drain Pan 3/4" FPT

Bin Drain 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 RS43C1E-CAA

CONDENSER Air-cooled, Fin and tube type

EVAPORATOR Copper Tube on Cylinder

REFRIGERANT CONTROL Thermostatic Expansion Valve

REFRIGERANT CHARGE R-404A, 1 lb. (470 g)

DESIGN PRESSURE High 460 PSIG, Low 290 PSIG

P.C. BOARD CIRCUIT PROTECTION High Voltage Cut-off Relay

COMPRESSOR PROTECTION Auto-reset Overload Protector

GEAR MOTOR PROTECTION Manual reset Circuit Breaker

REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

LOW WATER PROTECTION Float Switch and Timer

ACCESSORIES - SUPPLIED Ice Scoop, Spare Fuse

- REQUIRED Legs

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. (DIMENSIONS) 339850---

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

7

II. GENERAL INFORMATION

1. CONSTRUCTION

F-500BAF, F-500BAF-C

Top Panel

Side Panel

Sliding Door

Water Supply Inlet

Control Water Valve

Reservoir

Evaporator

Condenser

Condenser Fan

Spout

Gear Motor

Access Valve

Compressor

Control Box

Side Panel

Front Panel

8

2. ICE MAKING UNIT

9

CONTROL

TIMER

CONNECTOR

PRESSURE

SWITCH

TRANSFORMER

WATER CONTROL

RELAY

FLUSH

FLUSH SWITCH

ICE

FUSE

CIRCUIT

BREAKER

OFF

ON

POWER SWITCH

CIRCUIT PROTECT

RELAY

GEAR MOTOR

PROTECT RELAY

CAPACITOR FOR

GEAR MOTOR

CAPACITOR FOR

FAN MOTOR

START

CAPACITOR

RUN

CAPACITOR

STARTER

FLUSH VALVE

CONTROL RELAY

Note: The above component names are identical with the Wiring Label, but not with the Parts

List.

3. CONTROL BOX LAYOUT

F-500BAF, F-500BAF-C

10

4. TIMER BOARD

[a] SOLID-STATE CONTROL

1) A HOSHIZAKI exclusive solid-state control is employed in the self-contained flaker

icemakers.

2) A Printed Circuit Board (hereafter called “Timer Board”) includes a stable and high qual-

ity control system.

3) All models are pre-tested and factory adjusted.

[b] TIMER BOARD

CAUTION

1. Fragile, handle very carefully.

2. A timer board contains CMOS (Complementary Metal-Oxide Semiconduc-

tor) integrated circuits, which are susceptible to failure due to static dis-

charge. It is especially important to use an anti-static wrist strap when

handling or replacing the board.

3. Do not touch the electronic devices on the board or the back of the board to

prevent damage to the board.

4. Do not change wiring and connections. Especially, never misconnect

terminals.

5. Do not fix the electronic devices or parts on the board in the field. Always

replace the whole board assembly when it goes bad.

The icemaker is controlled by the Timer Board for the following purposes:

1) To prevent the Gear Motor and the Compressor from starting or stopping simulta-

neously.

2) To reduce remaining ice in the refrigeration casing.

3) To protect the unit in case of low water and low water pressure.

4) To protect the unit in case the Bin Control causes chattering.

11

Fig. 1

[C] SEQUENCE

Fig. 2

12

Fig. 3

EDOCTRAP10-503734

LEDOM10C441AA2H

GNITARzH06/05CAV42

1T.ces51±06

2T.ces22±09

3T.ces54±051

4Tsselro.ces1

5T%07±.ces7.6

6T%07±.ces7.6

13

Functions of Terminals

1) Terminals 1, 2

Power supply AC 24V.

2) Terminals 3, 4

Control X1 (GM) and X2 (CM) Relays.

When closed, energize X1 (GM) in 1 sec. and X2 (CM) in 60 sec.

When opened, de-energize X1 (GM) in 150 sec. and X2 (CM) in 90 sec.

3) Terminals 5, 6

Control X1 (GM) and X2 (CM) Relays.

When opened, de-energize X1 (GM) and X2 (CM) immediately.

When closed again, energize X1 (GM) in 1 sec. and X2 (CM) in 60 sec.

4) Terminals 7, 8, 9

X1 (GM) contacts.

8 is a movable contact, 7 is a make contact, and 9 is a break contact.

5) Terminals 10, 11

Control X2 (CM) Relays.

When opened, de-energize X2 (CM) immediately.

When closed, energize X2 (CM) immediately.

Note: 1. X2 Relay is a single pole, normally open relay, and its terminals are mounted

on the relay itself.

2. The above operation times are median. See Fig. 3 for details.

14

1. WATER CIRCUIT AND REFRIGERANT CIRCUIT

F-500BAF, F-500BAF-C

SPOUT

CONTROL

WATER

VALVE

FLOAT

SWITCH

RESERVOIR

OVERFLOW

GEAR

MOTOR

WATER LEVEL

EVAPORATOR

WATER

INLET

DRIER

CONDENSER

FAN MOTOR

PRESSURE

SWITCH

COMPRESSOR

WATER CIRCUIT

REFRIGERANT CIRCUIT

ACCESS

VALVE

DRAIN

OUTLET

DRAIN PAN

FLUSH

WATER

VALVE

ACCESS

VALVE

EXPANSION

VALVE

15

2. WIRING DIAGRAM

F-500BAF, F-500BAF-C

16

MOT.

PROTECTOR

115-120/60/1

L

N

8

7

5

3

1

CIRCUIT

PROTECT

RELAY (X5)

CONTROL

SWITCH

K

1

C

BR

W

START CAP.

270-324MFD

1

5

2

COMP.

31

R

BK

C

R

S

V

1

3

5

7

2

4

6

8

GEAR MOTOR

PROTECT RELAY

(X4)

K

5

A

K

6

A

GEAR

MOTOR

CAP.

10MFD

K

8

A

K

6

C

K

3

C

K

4

C

K

3

A

K

1

A

K

9

A

K

7

A

V

THERMAL

PROTECTOR

CIRCUIT

SWITCH

GY

BK

(O)

(Y)

(DBU)

CAP.

2.5MFD

(BR)

P

LBU

(BR)

(BK)

K

6

B

K

4

A

CONDENSER FAN MOTOR

K

2

A

(W)

DBU

PRESSURE

SWITCH

8

123

45

610

11

7

4

3

O

9

W

BR

R

O

GY

P

VBK

R

LBU

CONTROL

TIMER

TRANS.

O

(O)

CONTROL

WATER VALVE

BR

DBU

O

BK

(BU)

(BK)

FLOAT SWITCH

1

3

2

4

6

8

5

7

K

1

D

K

4

B

K

3

B

K

5

B

WATER CONTROL RELAY

(X3)

K

2

D

BK

24V

(BK)

FLUSH WATER

VALVE

FUSE (1A)

R

K

2

B

LBU

5

4

3

2

1

K

1

B

FLUSH RELAY (X6)

K

3

D

K

4

D

BIN CONTROL SWITCH

P

FLUSH

SWITCH

LBU

(O)

RUN CAP.

15MFD

O

DBU

STARTER

R

P

O

BR

W

BK

R

O

GY

P

DBU

V

Y

LBU

BU

BROWN

WHITE

BLACK

RED

ORANGE

GRAY

PINK

DARK BLUE

VIOLET

YELLOW

LIGHT BLUE

BLUE

WIRE COLOR CODE

(F-500BAF(-C))

3. SEQUENCE OF ELECTRICAL CIRCUIT

F-500BAF/-C

[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 up, Gear Motor starts immediately.

MOT.

PROTECTOR

115-120/60/1

L

N

8

7

5

3

1

CIRCUIT

PROTECT

RELAY (X5)

CONTROL

SWITCH

K

1

C

BR

W

START CAP.

270-324MFD

1

5

2

COMP.

31

R

BK

C

R

S

V

1

3

5

7

2

4

6

8

GEAR MOTOR

PROTECT RELAY

(X4)

K

5

A

K

6

A

GEAR

MOTOR

CAP.

10MFD

K

8

A

K

6

C

K

3

C

K

4

C

K

3

A

K

1

A

K

9

A

K

7

A

V

THERMAL

PROTECTOR

CIRCUIT

SWITCH

GY

BK

(O)

(Y)

(DBU)

CAP.

2.5MFD

(BR)

P

LBU

(BR)

(BK)

K

6

B

K

4

A

CONDENSER FAN MOTOR

K

2

A

(W)

DBU

PRESSURE

SWITCH

8

123

45

610

11

7

4

3

O

9

W

BR

R

O

GY

P

VBK

R

LBU

CONTROL

TIMER

TRANS.

O

(O)

CONTROL

WATER VALVE

BR

DBU

O

BK

(BU)

(BK)

FLOAT SWITCH

1

3

2

4

6

8

5

7

K

1

D

K

4

B

K

3

B

K

5

B

WATER CONTROL RELAY

(X3)

K

2

D

BK

24V

(BK)

FLUSH WATER

VALVE

FUSE (1A)

R

K

2

B

LBU

5

4

3

2

1

K

1

B

FLUSH RELAY (X6)

K

3

D

K

4

D

BIN CONTROL SWITCH

P

FLUSH

SWITCH

LBU

(O)

RUN CAP.

15MFD

O

DBU

STARTER

R

P

O

BR

W

BK

R

O

GY

P

DBU

V

Y

LBU

BU

BROWN

WHITE

BLACK

RED

ORANGE

GRAY

PINK

DARK BLUE

VIOLET

YELLOW

LIGHT BLUE

BLUE

WIRE COLOR CODE

(F-500BAF(-C))

18

[c] Compressor starts about 60 sec. after Gear Motor starts.

MOT.

PROTECTOR

115-120/60/1

L

N

8

7

5

3

1

CIRCUIT

PROTECT

RELAY (X5)

CONTROL

SWITCH

K

1

C

BR

W

START CAP.

270-324MFD

1

5

2

COMP.

31

R

BK

C

R

S

V

1

3

5

7

2

4

6

8

GEAR MOTOR

PROTECT RELAY

(X4)

K

5

A

K

6

A

GEAR

MOTOR

CAP.

10MFD

K

8

A

K

6

C

K

3

C

K

4

C

K

3

A

K

1

A

K

9

A

K

7

A

V

THERMAL

PROTECTOR

CIRCUIT

SWITCH

GY

BK

(O)

(Y)

(DBU)

CAP.

2.5MFD

(BR)

P

LBU

(BR)

(BK)

K

6

B

K

4

A

CONDENSER FAN MOTOR

K

2

A

(W)

DBU

PRESSURE

SWITCH

8

123

45

610

11

7

4

3

O

9

W

BR

R

O

GY

P

VBK

R

LBU

CONTROL

TIMER

TRANS.

O

(O)

CONTROL

WATER VALVE

BR

DBU

O

BK

(BU)

(BK)

FLOAT SWITCH

1

3

2

4

6

8

5

7

K

1

D

K

4

B

K

3

B

K

5

B

WATER CONTROL RELAY

(X3)

K

2

D

BK

24V

(BK)

FLUSH WATER

VALVE

FUSE (1A)

R

K

2

B

LBU

5

4

3

2

1

K

1

B

FLUSH RELAY (X6)

K

3

D

K

4

D

BIN CONTROL SWITCH

P

FLUSH

SWITCH

LBU

(O)

RUN CAP.

15MFD

O

DBU

STARTER

R

P

O

BR

W

BK

R

O

GY

P

DBU

V

Y

LBU

BU

BROWN

WHITE

BLACK

RED

ORANGE

GRAY

PINK

DARK BLUE

VIOLET

YELLOW

LIGHT BLUE

BLUE

WIRE COLOR CODE

(F-500BAF(-C))

19

[d] Compressor stops about 90 sec. after Bin Control operates. Gear Motor stops about

60 sec. later, and water is drained from the water circuit. Water can be also drained

by moving Flush Switch to "FLUSH" position.

MOT.

PROTECTOR

115-120/60/1

L

N

8

7

5

3

1

CIRCUIT

PROTECT

RELAY (X5)

CONTROL

SWITCH

K

1

C

BR

W

START CAP.

270-324MFD

1

5

2

COMP.

31

R

BK

C

R

S

V

1

3

5

7

2

4

6

8

GEAR MOTOR

PROTECT RELAY

(X4)

K

5

A

K

6

A

GEAR

MOTOR

CAP.

10MFD

K

8

A

K

6

C

K

3

C

K

4

C

K

3

A

K

1

A

K

9

A

K

7

A

V

THERMAL

PROTECTOR

CIRCUIT

SWITCH

GY

BK

(O)

(Y)

(DBU)

CAP.

2.5MFD

(BR)

P

LBU

(BR)

(BK)

K

6

B

K

4

A

CONDENSER FAN MOTOR

K

2

A

(W)

DBU

PRESSURE

SWITCH

8

123

45

610

11

7

4

3

O

9

W

BR

R

O

GY

P

VBK

R

LBU

CONTROL

TIMER

TRANS.

O

(O)

CONTROL

WATER VALVE

BR

DBU

O

BK

(BU)

(BK)

FLOAT SWITCH

1

3

2

4

6

8

5

7

K

1

D

K

4

B

K

3

B

K

5

B

WATER CONTROL RELAY

(X3)

K

2

D

BK

24V

(BK)

FLUSH WATER

VALVE

FUSE (1A)

R

K

2

B

LBU

5

4

3

2

1

K

1

B

FLUSH RELAY (X6)

K

3

D

K

4

D

BIN CONTROL SWITCH

P

FLUSH

SWITCH

LBU

(O)

RUN CAP.

15MFD

O

DBU

STARTER

R

P

O

BR

W

BK

R

O

GY

P

DBU

V

Y

LBU

BU

BROWN

WHITE

BLACK

RED

ORANGE

GRAY

PINK

DARK BLUE

VIOLET

YELLOW

LIGHT BLUE

BLUE

WIRE COLOR CODE

(F-500BAF(-C))

20

[e] When 208 - 230V are supplied to the power supply due to miswiring, Circuit Protect

Relay operates, and the icemaker does not run.

MOT.

PROTECTOR

115-120/60/1

L

N

8

7

5

3

1

CIRCUIT

PROTECT

RELAY (X5)

CONTROL

SWITCH

K

1

C

BR

W

START CAP.

270-324MFD

1

5

2

COMP.

31

R

BK

C

R

S

V

1

3

5

7

2

4

6

8

GEAR MOTOR

PROTECT RELAY

(X4)

K

5

A

K

6

A

GEAR

MOTOR

CAP.

10MFD

K

8

A

K

6

C

K

3

C

K

4

C

K

3

A

K

1

A

K

9

A

K

7

A

V

THERMAL

PROTECTOR

CIRCUIT

SWITCH

GY

BK

(O)

(Y)

(DBU)

CAP.

2.5MFD

(BR)

P

LBU

(BR)

(BK)

K

6

B

K

4

A

CONDENSER FAN MOTOR

K

2

A

(W)

DBU

PRESSURE

SWITCH

8

123

45

610

11

7

4

3

O

9

W

BR

R

O

GY

P

VBK

R

LBU

CONTROL

TIMER

TRANS.

O

(O)

CONTROL

WATER VALVE

BR

DBU

O

BK

(BU)

(BK)

FLOAT SWITCH

1

3

2

4

6

8

5

7

K

1

D

K

4

B

K

3

B

K

5

B

WATER CONTROL RELAY

(X3)

K

2

D

BK

24V

(BK)

FLUSH WATER

VALVE

FUSE (1A)

R

K

2

B

LBU

5

4

3

2

1

K

1

B

FLUSH RELAY (X6)

K

3

D

K

4

D

BIN CONTROL SWITCH

P

FLUSH

SWITCH

LBU

(O)

RUN CAP.

15MFD

O

DBU

STARTER

R

P

O

BR

W

BK

R

O

GY

P

DBU

V

Y

LBU

BU

BROWN

WHITE

BLACK

RED

ORANGE

GRAY

PINK

DARK BLUE

VIOLET

YELLOW

LIGHT BLUE

BLUE

WIRE COLOR CODE

(F-500BAF(-C))

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Hoshizaki American, Inc. F-500BAF-C User manual

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