This document is an instruction manual for Hoshizaki Self-Contained Crescent Cubers, specifically models KM-80BAJ, KM-115BAJ, KM-160BAJ, and KM-160BWJ. It provides comprehensive information for installation, operation, maintenance, and disposal of these ice machines.
Function Description:
The Hoshizaki Self-Contained Crescent Cuber is an appliance designed to produce crescent-shaped ice. It includes an integrated ice storage bin. The manual covers the necessary steps for setting up the unit, operating it, and performing routine cleaning and sanitization to ensure proper function and hygiene. It also details procedures for preparing the appliance for periods of non-use and proper disposal.
Important Technical Specifications:
- Models Covered: KM-80BAJ, KM-115BAJ, KM-160BAJ, KM-160BWJ.
- AC Supply Voltage: All models operate on 115/60/1.
- Amperes:
- KM-80BAJ: 3.5 AMPS
- KM-115BAJ: 5.5 AMPS
- KM-160BAJ: 7.1 AMPS
- KM-160BWJ: 6.4 AMPS
- Design Pressure (HI/LO): All models have HI-290PSI and LO-130PSI.
- Refrigerant: All models use 134a.
- KM-80BAJ: 7.1 oz.
- KM-115BAJ: 7.8 oz.
- KM-160BAJ: 7.4 oz.
- KM-160BWJ: 10.6 oz.
- Operating Ambient Temperature: Normal operating range is 45°F to 100°F (7°C to 38°C).
- Operating Water Temperature: Normal operating range is 45°F to 90°F (7°C to 32°C).
- Water Supply Pressure: Minimum 10 PSIG, maximum 113 PSIG. A pressure reducing valve is required if pressure exceeds 113 PSIG.
- Icemaker Water Supply Inlet: 1/2" Female Pipe Thread (FPT).
- Minimum Icemaker Water Supply Line Size: 1/4" Nominal ID Copper Water Tubing or Equivalent.
- Icemaker Drain Outlet: 3/4" Female Pipe Thread (FPT).
- Minimum Icemaker Drain Line Size: 3/4" Nominal ID Hard Pipe or Equivalent.
- Water-Cooled Condenser (KM-160BWJ only):
- Supply Inlet: 1/2" Female Pipe Thread (FPT).
- Minimum Supply Line Size: 1/4" Nominal ID Copper Water Tubing or Equivalent.
- Drain Outlet: 1/2" Female Pipe Thread (FPT).
- Minimum Drain Line Size: 1/4" Nominal ID Hard Pipe or Equivalent.
- Minimum water flow to condenser: 4 GPM.
- Condenser water supply inlet temperature should not drop below 45°F (7°C).
- Condenser drain outlet temperature must be in the 104°F to 115°F (40°C to 46°C) range.
- Pressure differential between condenser water supply inlet and return outlet must be no less than 10 PSIG.
- Glycol blend solution mixture (if used) should be less than 30% glycol.
- Clearances: No clearance required at either side. At least 12" (30 cm) at the rear for water supply and drain connections, 12" (30 cm) at the front, and 5/8" (15 mm) at the top for maintenance.
- Maximum Top Panel Load: 33 lb. (15 kg).
- Drain Line Fall: 1/4" fall per foot (2 cm per 1 m) on horizontal runs.
- Air Gap for Drains: Minimum 2 vertical inches (5 cm) between drain pipe ends and floor drain.
- Adjustable Legs: 6” (15.2 cm) to 7” (17.8 cm).
Usage Features:
- Control Switch: Features "OFF," "ICE," and "WASH" positions for operation and maintenance.
- Built-in Design: Can be mounted flat to a counter with perimeter sealed by caulk.
- Panel Removal: Instructions provided for removing Louver, Top Panel, and Rear Cover for installation and maintenance.
- Water Tank: Removable for cleaning.
- Cube Guides: Quantity varies by model (KM-80BAJ: 2 pcs, KM-115BAJ: 3 pcs, KM-160BAJ: 3 pcs, KM-160BWJ: 3 pcs).
- Bin Control Switch: Accessible by removing the water tank for easy maintenance.
- Startup Procedure: Includes steps for opening water supply, removing air filter, setting control switch to "ICE" and "WASH" for initial operation and draining, and then returning to "ICE" for ice production.
- Non-Use Preparation: Detailed steps for draining water from the icemaker supply line and water tank, and for water-cooled models, draining the condenser, to prevent damage during extended periods of non-use or sub-freezing temperatures.
Maintenance Features:
- Maintenance Schedule: Provides a guideline for daily, bi-weekly, monthly, and yearly tasks.
- Daily: Clean ice scoop.
- Bi-Weekly: Inspect and wash air filters.
- Monthly: Wipe down icemaker exterior, clean and sanitize icemaker and ice storage bin liner.
- Yearly: Clean water supply inlet screen, inspect and clean condenser, inspect and clean/replace water hoses.
- Cleaning Procedure:
- Requires Hoshizaki “Scale Away” cleaner diluted with water.
- Involves removing ice, draining water, circulating cleaning solution using the "WASH" cycle, rinsing, and then manually cleaning removed parts (bin control switch, water tank, float switch, cube guide, silicone hose, overflow pipe, bin liner, and brackets).
- Sanitizing Procedure:
- Follows the cleaning procedure.
- Requires an 8.25% sodium hypochlorite solution (chlorine bleach) diluted with warm water to achieve approximately 200 ppm.
- Involves soaking and washing removed parts with sanitizing solution, then rinsing.
- Circulating sanitizing solution through the water tank using the "WASH" cycle, followed by rinsing.
- Safety Precautions: Emphasizes using only qualified service technicians, following national/state/local codes, proper grounding, avoiding extension cords, not touching controls with damp hands, and not altering the appliance. Warns against using ammonia-type cleaners and stresses wearing liquid-proof gloves and goggles during cleaning/sanitizing.
- Choking Hazard Warning: Reminds users to ensure all components, fasteners, and thumbscrews are securely in place after installation or maintenance to prevent them from falling into the ice storage bin.
- Water Pump Protection: Advises against leaving the control switch in the "WASH" position for extended periods when the water tank is empty to prevent damage to the water pump.
- Refrigerant Disposal: States that the appliance contains refrigerant and must be disposed of in accordance with applicable codes, with refrigerant recovered by certified service personnel. Notes that the insulation foaming agent contains flammable gas cyclopentane.
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