Hoshizaki KM-2400SRH3, KM-2400SRF3 service manual Controller Board, SOLID-STATE Control

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2. CONTROLLER BOARD

[a] SOLID-STATE CONTROL

1)A HOSHIZAKI exclusive solid-state control is employed in KM-2400SRF3 and KM-2400SRH3 Stackable Crescent Cubers.

2)A Printed Circuit Board (hereafter called “Controller Board”) includes a stable and high quality control system.

3)All models are pretested and factory-adjusted.

[b] CONTROLLER BOARD

CAUTION

1.Fragile, handle very carefully.

2.A controller 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 board or the back of the board to prevent damage to the board.

4.Do not change wiring and connections. Do not misconnect K3, K4 and K5, because the same connector is used for the Thermistor and Float Switch. K4 is not connected.

5.Always replace the whole board assembly when it goes bad.

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

 

PART NUMBER

TYPE

KM-2400SRF3 uses

2A0836-01

HOSHIZAKI (Control Products - 8 Pin)

 

or 2A1410-01

HOS-001A (Control Products - 10 Pin)

KM-2400SRH3 uses

2A1410-01

HOS-001A (Control Products - 10 Pin)

Features of Control Products “E” Controller Board

1)Maximum Water Supply Period - 6 minutes

Water Solenoid Valve opening, in the Defrost (Harvest) Cycle, is limited by the defrost timer. The Water Valve cannot remain open longer than the maximum period. The Water Valve can close in less than six minutes if the defrost cycle is completed.

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Contents Stackable Crescent Cuber Hoshizaki AMERICA, INC Contents Maintenance Specifications Condensing UNIT, URC-24F Specifications Model URC-24F II. General Information Construction Controller Board Features of Control Products E Controller BoardSOLID-STATE Control Controller BoardPage Minute Fill Cycle Beep every 3 sec. = High Evaporator Temperature 127 FHarvest Cycle Freeze CycleControl Products HOSHIZAKI001 Board Control Products HOS-001A Board Sequence 1st Cycle Important Water Valve opening is limited to 6 minutes 2nd Cycle and after with pump drain2nd Cycle and after with no pump drain OFF Controls and AdjustmentsSetting Time Setting Frequency Checking the Controller Board Page III. Technical Information Wiring Diagram Timing Chart Page Performance Data Problem Possible Cause Remedy IV. Service Diagnosis No ICE ProductionController Board Problem Possible Cause Remedy Thermistor Evaporator is Frozen UPLOW ICE Production Abnormal ICEOthers Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-404ABrazing Removal and Replacement of Compressor Important Removal and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of HOT GAS Valve and Line Valve Removal and Replacement of Evaporator Important Page Removal and Replacement of Thermistor Caution Removal and Replacement of FAN Motor Removal and Replacement of Pump Motor Removal and Replacement of Water ValveRemoval and Replacement of Spray Tubes Preparing the Icemaker for Long Storage VI. Cleaning and Maintenance Instructions ImportantPage Cleaning Procedure Cleaning Procedure Page Sanitizing Procedure Following Cleaning Procedure Maintenance