Hoshizaki F-330BAH User manual

Hoshizaki

“A Superior Degree

of Reliability”

www.hoshizaki.com

Model

F-330BAH(-C)

Self-Contained Flaker

Hoshizaki America, Inc.

Number:

Issued: 8-2-2007

SERVICE MANUAL

73151

®

2

IMPORTANT

Only qualiﬁed service technicians should attempt to service or maintain this

unit. No such 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 unit.

Should the reader have any questions or concerns which have not been satisfactorily

addressed, please call, write or send an e-mail message 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

E-mail: techsuppor[email protected]

Web Site: www.hoshizaki.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

Please review this manual. It should be read carefully before the unit is serviced or

maintenance operations are performed. Only qualiﬁed service technicians should service

and maintain the unit. This manual should be made available to the technician prior to

service or maintenance.

CONTENTS

I. Speciﬁcations ...................................................................................................................... 5

A. Icemaker ....................................................................................................................... 5

1. F-330BAH ................................................................................................................ 5

2. F-330BAH-C ............................................................................................................ 6

II. General Information ........................................................................................................... 7

A. Construction .................................................................................................................. 7

B. Ice Making Unit ............................................................................................................. 8

C. Control Box Layout ........................................................................................................ 9

1. Control Timer Board ................................................................................................ 9

D. Sequence of Operation ............................................................................................... 10

1. Startup ................................................................................................................... 10

2. Fill Cycle ................................................................................................................

10

3. Ice Purge Cycle (60 seconds) ............................................................................... 10

4. Freeze Cycle .......................................................................................................... 10

5. Shutdown ............................................................................................................... 10

III. Technical Information ...................................................................................................... 12

A. Water Circuit and Refrigeration Circuit ........................................................................ 12

B. Wiring Diagram ............................................................................................................ 13

C. Sequence of Electrical Circuit ..................................................................................... 14

1. Fill Cycle ............................................................................................................... 14

2. Ice Purge Cycle ....................................................................................................

15

3. Freeze Cycle ......................................................................................................... 16

4. Shutdown .............................................................................................................. 17

5. Cleaning - Flush Switch ......................................................................................... 18

6. Low Water Safety .................................................................................................. 19

7. Spout Safety Switch ............................................................................................. 20

8. High Pressure Switch ........................................................................................... 21

D. Performance Data ....................................................................................................... 22

1. F-330BAH .............................................................................................................. 22

2. F-330BAH-C .......................................................................................................... 23

IV. Service Diagnosis ........................................................................................................... 24

A. Diagnostic Procedure .................................................................................................. 24

B. Ice Production Check .................................................................................................. 25

C. Diagnostic Charts ....................................................................................................... 26

1. No Ice Production .................................................................................................. 26

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

28

3. Other ...................................................................................................................... 29

V. Removal and Replacement of Components .................................................................... 30

A. Service for Refrigerant Lines ...................................................................................... 30

1. Refrigerant Recovery ............................................................................................. 30

2. Brazing ..................................................................................................................

30

3. Evacuation and Recharge (R-404A) ...................................................................... 31

4

B. Removal and Replacement of Compressor ................................................................ 32

C. Removal and Replacement of Evaporator Assembly Components ............................ 33

1. Upper Bearing Wear Check ..................................................................... 34

2. Removal and Replacement of Cutter..................................................................... 34

3. Removal and Replacement of Extruding Head ..................................................... 35

4. Removal and Replacement of Evaporator Heater ................................................. 35

5. Removal and Replacement of Auger ..................................................................... 35

6. Removal and Replacement of Evaporator ............................................................. 36

7. Removal and Replacement of Mechanical Seal and Lower Housing ................... 37

8. Removal and Replacement of Gear Motor ............................................................ 38

D. Removal and Replacement of Fan Motor .................................................................... 38

E. Removal and Replacement of Control Water Valve .................................................... 39

F. Removal and Replacement of Flush Water Valve ........................................................ 39

G. Removal of Bin Assembly ........................................................................................... 40

VI. Cleaning and Maintenance ............................................................................................. 42

A. Cleaning and Sanitizing Instructions ........................................................................... 42

1. Cleaning Solution .................................................................................................. 42

2. Cleaning Procedure ............................................................................................... 42

3. Sanitizing Solution ................................................................................................. 44

4. Sanitizing Procedure - Initial .................................................................................. 44

5. Sanitizing Procedure - Final .................................................................................. 44

B. Maintenance ............................................................................................................... 46

5

I. Speciﬁcations

A. Icemaker

1. F-330BAH

Note: We reserve the right to make changes in speciﬁcations and design without prior

notice.

AC SUPPLY VOLTAGE 115/60/1

AMPERAGE 6.7A ( AT 104°F/ WT 80°F )

MINIMUM CIRCUIT AMPACITY N/A

MAXIMUM FUSE SIZE N/A

APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F)

PER 24 HR. Temp.(°F) 50 70 90

lbs./day ( kg/day ) 70 * 330(150) 315(143) 300(136)

Reference without *marks 80 290(132) 280(127) 270(123)

90 255(116) * 250(114) 235(107)

100 230(104) 220(100) *205(93)

SHAPE OF ICE Flake

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

APPROXIMATE STORAGE CAPACITY 80 lbs.

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

ELECTRIC W (kWH/100 lbs.) 606(5.8) 562(4.1)

POTABLE WATER 30(12) 38(12)

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

EXTERIOR DIMENSIONS (WxDxH) 24" x 26" x 33" (610 x 660 x 838 mm)

EXTERIOR FINISH Galvanized Steel (Rear,Bottom)

Stainless Steel (Top,Front,Side)

WEIGHT Net 147 lbs. ( 67 kg ), Shipping 178 lbs. ( 81 kg )

CONNECTIONS - ELECTRIC Cord Connection

- WATER SUPPLY Inlet 1/2" FPT

- DRAIN Drain 3/4" FPT

ICE MAKING SYSTEM Auger type

HARVESTING SYSTEM Direct Driven Auger ( 80W Gear Motor )

ICE MAKING WATER CONTROL Float Switch

COOLING WATER CONTROL N/A

BIN CONTROL SYSTEM Mechanical Bin Control ( Proximity Sw. )

COMPRESSOR Hermetic, Model NF7CLX

CONDENSER Air-cooled, Fin and tube type

EVAPORATOR Copper Tube on Cylinder

REFRIGERANT CONTROL Capillary Tube

REFRIGERANT CHARGE R-404A, 7.1 oz. (200 g)

DESIGN PRESSURE High 470 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

REFRIGERANT CIRCUIT PROTECTION Auto-reset High Pressure Control Switch

LOW WATER PROTECTION Float Switch and Timer

ACCESSORIES - SUPPLIED Ice Scoop, Legs, Spare Fuse

OPERATING CONDITIONS VOLTAGE RANGE 104 - 127 V

AMBIENT TEMP. 45 - 100° F

WATER SUPPLY TEMP. 45 - 90° F

WATER SUPPLY PRESSURE 10 - 113 PSIG

ENG F-013.0.1196

6

2. F-330BAH-C

Note: We reserve the right to make changes in speciﬁcations and design without prior

notice.

Intentionally Left Blank

7

II. General Information

A. Construction

F-330BAH(-C)

Ice Storage Bin

Control Water Valve

Reservoir

Control Box

Bin Control

The switch actuator

is located in the ice

storage bin.

Spout

Evaporator

Gear Motor

Compressor

Front

Rear

Flush Water Valve

Spout Safety Switch

Condenser Bracket

Air-Cooled Condenser &

Condenser Fan Motor

8

B. Ice Making Unit

1. F-330BAH(-C)

Heater (-C model only)

Allen Head Cap Screw

M8×14

Gear Motor

Coupling Spline

Housing-Lower Bearing

O-Ring

Mechanical-Seal

Cylinder

Auger

Extruding Head

Upper Bearing

Cutter

Insulation

Allen Head Cap Screw

M6×10

Hexagon Head Bolt

M6×20

9

1. Control Timer Board

• A HOSHIZAKI exclusive solid-state control timer board is employed in Hoshizaki ﬂaker

icemakers.

• All models are pre-tested and factory-adjusted.

CAUTION

1. Fragile, handle very carefully.

2. The control timer board contains integrated circuits, which are susceptible

to failure due to static discharge. It is especially important to touch the metal

part of the unit when handling or replacing the board.

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

the control timer board to prevent damage to the control timer board.

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

terminals.

5. Do not short out power supply to test for voltage

6. Do not attempt to ﬁx the electronic devices or parts on the control timer

board in the ﬁeld. Always replace the whole control timer board if it goes bad.

The control timer board provides the following safeguards:

• Provides component protection during low water supply.

• Purges remaining ice in the evaporator.

• Provides short cycle protection for the compressor.

Flush Switch

Power Switch

Transformer

Capacitor - Gear Motor

Flush Relay (X5)

Water Control Relay (X4)

Gear Motor Protect Relay (X3)

Control Timer Board

Safety Relay (X6)

Lamp

Overload Protector

Fuse Holder

Gear Motor Relay

(Permanently attached to

control timer board)

Compressor Relay

(Permanently attached to

control timer board)

C. Control Box Layout

10

D. Sequence of Operation

Hoshizaki utilizes a solid state control timer board to switch the components on and off

as needed. The sequence is as follows:

1. Startup

Flush switch in "ICE" position, power switch in "ON" position. FR energizes.

2. Fill Cycle

CWV opens and the reservoir ﬁlls with water until UF/S closes. Note: GM will not start

unless UF/S is closed. For details, see "IV. Service Diagnosis".

3. Ice Purge Cycle (60 seconds)

WCR energizes, closing the low water safety circuit and de-energizing CWV. GMR

energizes (clear relay located on CT). GM starts and GMPR energizes. GM runs for

60 seconds to clear any ice from the evaporator.

Note: Low water safety circuit is terminals 3 and 4 on CT.

4. Freeze Cycle

CR energizes (black relay located on CT). Comp and FMS energize. As the water in the

evaporator cools, ice starts forming within 4 to 6 minutes. This time frame depends on

the inlet water and ambient temperature conditions.

UF/S and LF/S operate CWV as needed to continue the ice making process. This

continues until BC shuts the ice maker down or power is turned off to the unit.

5. Shutdown

BC activates (opens). FR de-energizes, FWV energizes. Approximately 90 seconds after

BC activates, Comp and FMS de-energize, one minute later GMPR de-energizes and

GM stops.

Legend: BC–bin control; Comp–compressor; CR–compressor relay; CT–control timer

board; CWV–control water valve; FMS–self-contained fan motor; FR–ﬂush relay;

FWV–ﬂush water valve; GM–gear motor; GMPR–gear motor protect relay;

GMR–gear motor relay; LF/S–lower ﬂoat switch; UF/S–upper ﬂoat switch;

WCR–water control relay.

11

UF/S open

LF/S open

90 sec. CT started

WCR de-energized

CWV energized

Comp continues

GM continues

FMS continues

GMPR continues

FR continues

60 seconds

F-330BAH(-C) Sequence Flow Chart and Component Operation

Bin control operation

1. Startup

2. Ice Purge Cycle

FR energized

WCR de-energized

CWV energized

LF/S closed

UF/S closed

WCR energized

CWV de-energized

GM energized

GMPR energized

FR continues

Comp energized

FMS energized

WCR continues

GM continues

GMPR continues

FR continues

Flush switch in "ICE"

Power switch "ON"

2. Shutdown & Restart

90 seconds

1. Bin control proximity switch

opens to stop ice production.

Comp de-energized

FMS de-energized

GM continues

GMPR continues

FWV continues

GM de-energized

GMPR de-energized

FWV continues

3. Gear motor de-energizes

and unit is off.

6.7 sec.

60 seconds

1. Fill Cycle

3. Freeze Cycle

Reﬁll Cycle

LF/S closed

UF/S closed

90 sec. CT ended

WCR energized

CWV de-energized

Comp continues

GM continues

FMS continues

GMPR continues

FR continues

4. Low Water Safety

UF/S open

90 sec. CT exceeded

WCR de-energized

CWV continues

Comp continues

GM continues

FMS continues

GMPR continues

FR continues

Comp de-energized

FMS de-energized

CWV continues

GM continues

GMPR continues

FR continues

GM de-energized

GMPR de-energized

CWV continues

FR continues

90 sec. timer

60 sec. timer

If reﬁll > 90 sec. CT

60 sec. timer

BC open

FR de-energized

WCR de-energized

FWV energized

Comp continues

FMS continues

GM continues

GMPR continues

2. Compressor and fan motor

de-energize, gear motor

continues running.

4. Bin control proximity switch

closes. Reservoir ﬁlls. LF/S

and UF/S close. Gear motor

starts 6.7 seconds later.

LF/S and UF/S close

WCR energized

CWV de-energized

GM energized

GMPR energized

FR continues

BC closed

FR energized

CWV energized

FWV de-energized

Comp energized

FMS energized

GM continues

GMPR continues

WCR continues

FR continues

5. Compressor and fan

motor energize. Ice

production begins in

4 to 6 minutes.

UF/S closes terminating

90 sec. CT.

LF/S opens

initiating reﬁll

and 90 sec. CT

Low water safety circuit

closed. (Terminals 3

and 4 on control timer

board)

If reﬁll achieved, icemaking

cycle starts and timers

are reset.

Legend:

BC - bin control; Comp - compressor; CT - control timer board; CWV - control water valve; FMS - self-contained fan motor;

FR - ﬂush relay; FWV - ﬂush water valve; GM - gear motor; GMPR - gear motor protect relay; LF/S - lower ﬂoat switch;

UF/S - upper ﬂoat switch; WCR - water control relay

Components Energized when the Flush Switch is in the "FLUSH" Position

The "FLUSH" position is used when cleaning and sanitizing the machine. When in the "FLUSH" position,

power is supplied to the ﬂush valve. This allows cleaner and sanitizer to drain from the evaporator assembly.

12

III. Technical Information

A. Water Circuit and Refrigeration Circuit

F-330BAH(-C)

13

B. Wiring Diagram

F-330BAH(-C)

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1. Fill Cycle

When power switch is moved to "ON" position, water is supplied to reservoir.

F-330BAH(-C)

15

2. Ice Purge Cycle

When reservoir has ﬁlled, gear motor starts.

F-330BAH(-C)

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16

3. Freeze Cycle

Compressor and condenser fan motor start about 60 sec. after gear motor starts.

F-330BAH(-C)

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17

4. Shutdown

Compressor and condenser fan motor stop about 90 sec. after bin control operates, gear

motor stops about 60 sec. later. Flush water valve then operates.

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18

5. Cleaning - Flush Switch

Compressor and condenser fan motor stop about 90 sec. after manually moving ﬂush

switch to "FLUSH" position. Gear motor stops about 60 sec. later. Flush water valve then

operates.

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19

6. Low Water Safety

If upper ﬂoat switch fails to close, water valve remains open until upper ﬂoat switch

closes and water control relay energizes.

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20

7. Spout Safety Switch

When safety switch is activated, the safety relay operates, and the icemaker does not

run.

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Hoshizaki F-330BAH User manual

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Hoshizaki F-330BAH User manual

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