Hoshizaki KM-1300SAH3, KM-1300SWH3, KM-1300SRH3 service manual

Page 27

(ii)After the above step (i), disconnect the float switch leads from the controller board within the first 5 minutes of the freeze cycle.

The unit should go into the defrost cycle after the first 5 minutes ± 20 seconds of the freeze cycle.

(iii)Reconnect the float switch connector to the controller board. After the first 5 minutes of the freeze cycle, disconnect the float switch leads from the controller board.

At this point, the unit should start the defrost cycle.

(iv)After step (iii), de-energize the unit and confirm that the defrost timer is in the minimum position. Disconnect the resistor from the controller board, and energize the unit.

After the 1 minute water supply cycle, the defrost cycle starts.

Re-connect a 1.5 k- 3.5 kresistor to the connector K3 (pins #1 and #2) after the first 2 minutes of the defrost cycle. The unit should start the freeze cycle after 1 minute ± 5 seconds from the resistor connection.

3)Check the controller board using the controller board’s test program.

The output test switch “S3” provides a relay sequence test. With power OFF, place S3 on and switch power to ICE. The correct lighting sequence should be none, 2, 3, 4, 1, and 4, normal sequence every 5 seconds. S3 should remain in the “OFF” position for normal operation.

27

Image 27
Contents Hoshizaki Stackable Crescent Cuber Hoshizaki AMERICA, INC Contents Page KM-1300SAH Specifications IcemakerWater Cooled Condenser KM-1300SWHKM-1300SRH KM-1300SAH3 KM-1300SWH3 KM-1300SRH3 URC-12F Condensing UnitSpecifications Model URC-12F KM-1300SAH, KM-1300SAH3 II. General Information ConstructionKM-1300SWH, KM-1300SWH3 KM-1300SRH, KM-1300SRH3 Controller Board Features of Control Products E Controller BoardController Board Solid-State ControlPage Cycle Beep every 3 sec. = High Evaporator Temperature 127 FMinute Fill Cycle Harvest CycleControl 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 Dip switch is factory-adjusted to the following positions Controls and AdjustmentsSetting Time Setting Frequency Checking the Controller Board Page KM-1300SAH, KM-1300SAH3 KM-1300SWH, KM-1300SWH3 KM-1300SRH, KM-1300SRH3 KM-1300SAH, KM-1300SWH Wiring DiagramsPsig KM-1300SAH3, KM-1300SWH3 Cut-out 412 0 +21.3 Psig Cut-in 327 ± 21.3 Psig Timing Chart Page 327 Performance Data1284 1296 1320 1254 1308 Problem Possible Cause Remedy IV. Service Diagnosis No Ice ProductionProblem Possible Cause Remedy Water Regulator Water Problem Possible Cause Remedy Evaporator is Frozen Up Low Ice Production Abnormal IceOther Evacuation and Recharge R-404A Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant RecoveryBrazing Removal and Replacement of Compressor 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 Page Adjustment of Water Regulating Valve Water-Cooled Model Only Page Removal and Replacement of Thermistor 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. Maintenance and Cleaning InstructionsPage Cleaning and Sanitizing Procedures Cleaning Procedure Page Sanitizing Procedure Following Cleaning Procedure Maintenance

KM-1300SRH3, KM-1300SWH, KM-1300SRH, KM-1300SAH, KM-1300SWH3 specifications

The Hoshizaki KM-1300 series ice makers are designed to meet the demands of high-volume establishments requiring consistent, high-quality ice production. Among the models in this series are the KM-1300SAH3, KM-1300SWH, KM-1300SRH3, KM-1300SWH3, and KM-1300SAH, each boasting a variety of features and technologies to enhance efficiency and reliability.

One of the standout features of the KM-1300 series is its impressive ice production capacity. Each model is capable of producing up to 1,300 pounds of ice in a 24-hour period, making them ideal for busy restaurants, hotels, or bars that serve a high volume of customers. The machines are designed to create crescent ice, known for its pellet-like texture that is perfect for drink service and food display.

Energy efficiency is another key characteristic of the Hoshizaki KM-1300 models. They are equipped with a highly efficient refrigeration system that minimizes energy consumption while maximizing output. Many of the models in this series are certified by Energy Star, helping operators reduce their environmental footprint and lower operational costs.

Durability and ease of maintenance are also prominent features of the KM-1300 series. Constructed with stainless steel exteriors, these ice makers are built to withstand the rigors of a busy kitchen environment. Additionally, Hoshizaki has incorporated a unique air-cooled condenser design, which reduces the need for frequent servicing and minimizes downtime.

The KM-1300SAH3 and KM-1300SAH models come with advanced touch controls and a user-friendly interface, allowing operators to monitor and adjust settings with ease. The built-in self-diagnostic system alerts users to potential issues before they escalate, improving reliability and ensuring consistent ice production.

For those seeking flexibility, the KM-1300 series also offers modular designs, enabling operators to stack units or configure them in various layouts to optimize space. This adaptability makes these ice makers a smart choice for establishments with limited room or specific design requirements.

In summary, the Hoshizaki KM-1300 series ice makers combine efficiency, durability, and high production rates with advanced technology and user-friendly features. Ideal for high-demand environments, these machines deliver reliable performance and consistent ice quality, making them a valuable asset for any food service operation.