Hoshizaki F-300BAF service manual Contents

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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

II. General Information

6

A. Construction

6

B. Ice Making Unit

7

C. Control Box Layout

8

a) Auxiliary Code K-1 and Earlier

8

b) Auxiliary Code K-2 and L-0

8

c) Auxiliary Code L-1 and M-0

9

d) Auxiliary Code M-1 and Later

9

D. Timer Board

10

1. Solid-State Timer Board Control

10

E. Sequence of Operation

11

1. Startup

11

2. Fill Cycle

11

3. Ice Purge Cycle (60 seconds)

11

4. Freeze Cycle (Ice Making Process)

11

5. Shutdown:

11

F. Ice Production Check

11

III. Technical Information

13

A. Water Circuit and Refrigeration Circuit

13

B. Wiring Diagram

14

1. Auxiliary Code K-1 and Earlier

14

2. Auxiliary Code K-2 and L-0

15

3. Auxiliary Code L-1 and M-0

16

4. Auxiliary Code M-1 and Later

17

C. Sequence of Electrical Circuit

18

1. Fill Cycle

18

2. Ice Purge Cycle

19

3. Freeze Cycle

20

4. Shutdown

21

5. Cleaning - Flush Switch

22

6. Low Water Safety

23

7. Spout Safety Switch

24

8. High Pressure Switch

25

D. Performance Data

26

IV. Service Diagnosis

27

A. Diagnostic Procedure

27

B. Diagnostic Charts

29

1. No Ice Production

29

2. Low Ice Production

31

3. Other

32

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Contents Self-Contained Flaker Model 300BAF Hoshizaki AMERICA, INC Contents Upper Bearing Wear Check 300BAF Specifications IcemakerII. General Information Construction Ice Making Unit Auxiliary Code K-2 and L-0 Control Box LayoutAuxiliary Code M-1 and Later Auxiliary Code L-1 and M-0Solid-State Timer Board Control Timer BoardIce Production Check Sequence of Operation300BAF, F-500BAF Sequence Flow Chart and Component Operation 300BAF Auxiliary Code K-1 and Earlier Wiring DiagramAuxiliary Code K-2 and L-0 Auxiliary Code L-1 and M-0 Auxiliary Code M-1 and Later Sequence of Electrical Circuit Ice Purge Cycle Freeze Cycle Shutdown Cleaning Flush Switch Low Water Safety Spout Safety Switch High Pressure Switch ICE Production Performance DataIV. Service Diagnosis Diagnostic Procedure Page No Ice Production Diagnostic ChartsProblem Possible Cause Remedy Low Ice Production Other Evacuation and Recharge R-404A Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryBrazing Removal and Replacement of Compressor Removal and Replacement of Expansion Valve Removal and Replacement of DrierPage Removal and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of CutterRemoval and Replacement of Extruding Head Removal and Replacement of AugerRemoval and Replacement of Evaporator Page Removal and Replacement of Gear Motor 6b. Lower HousingRemoval and Replacement of Fan Motor Removal and Replacement of Inlet Water ValveRemoval and Replacement of Flush Water Valve Page Cleaning Procedure VI. Cleaning and MaintenanceCleaning and Sanitizing Instructions Cleaning SolutionSanitizing Solution Sanitizing Procedure Final Sanitizing Procedure InitialPage Air Filter MaintenanceStainless Steel Exterior Storage Bin and ScoopPreparing the Icemaker for Long Storage