Hoshizaki KM-520MAJ 556 lb/Day Air-Cooled Modular Crescent Ice Machine

Product overview

The Hoshizaki KM-520MAJ is an air-cooled modular crescent ice maker with a stainless steel double-sided evaporator, CycleSaver design and EverCheck alert system. It produces up to 556 lb per 24 hours at 70°F air / 50°F water, with 480 lb per 24 hours at 90°F air / 70°F water. A factory-installed ultrasonic bin control can be adjusted on site. The ice-making head requires a compatible storage bin or dispenser, sold separately.

Removable air filters and snap-fit components provide access for routine cleaning. Maintain the required clearances so the condenser can move air freely.

• ❄ Individual crescent cubes: Modular head; compatible bin or dispenser sold separately.
• ↔ 22-inch cabinet width: 27⅜-inch depth and 28-inch height.
• ⚡ Air-cooled: Removable air filters for routine maintenance.

Specifications

Bin selection and installation

Select a compatible bin or dispenser and the required top kit for the exact ice-machine model. Cabinet width alone does not establish compatibility. The bin or dispenser is a separate purchase; include its capacity, finished height, door access and utility needs in the installation plan.

Have qualified personnel install the head on a level, securely supported bin or dispenser, indoors and away from heat-producing equipment. Leave at least 6 inches at the rear, sides and top for ventilation and service. Keep the bin opening and ice-drop path clear, and follow the mounting and sealing instructions for the complete assembly. Ice output depends on incoming-water temperature, ambient conditions and installation.

Electrical connection

Have a qualified electrician provide an independent grounded 115V / 60Hz single-phase circuit matched to the nameplate. This head must be hardwired at the installation site; no power cord or plug is included. Complete all connections in accordance with local requirements and the model’s instruction manual.

Water supply and drainage

Connect potable water to the ½-inch FPT inlet through at least ¼-inch nominal-ID copper tubing or equivalent. Connect the ¾-inch FPT ice-maker drain to at least ¾-inch nominal-ID hard pipe or equivalent. Provide shut-off and drain valves and enough access for service.

Route the ice-maker drain and the separate bin or dispenser drain independently. Use a vented tee and at least ¼ inch of fall per horizontal foot, with a minimum 2-inch vertical air gap above the floor drain. The condensation drain may join the ice-maker drain or run separately. Select external water treatment for local water quality with a qualified installer; do not run the machine without the required water supply.

Cleaning and maintenance

Clean and rinse the ice scoop daily, and wipe the exterior monthly with a soft cloth and neutral cleaner. Inspect air filters every two weeks and wash them when dirty. Clean and sanitize the ice maker and the separate bin or dispenser at least yearly, with more frequent service when water quality, operating conditions or sanitation rules require it. Have the condenser and water-inlet screen inspected and cleaned on the maintenance schedule.

Follow the complete cleaning and sanitizing sequence, including power isolation and rinse cycles. Do not use ammonia cleaners, leave cleaning solution on ice-contact parts or serve ice made with cleaning or sanitizing solution. Wear the protective equipment specified for the chemicals. For extended non-use or freezing conditions, follow the shutdown and drainage procedure for the head and its related equipment.

Warranty

Limited coverage includes three years of parts and labor on the machine, five years of parts and labor on the evaporator and five years of compressor parts and air-cooled condenser parts. Coverage applies to the original owner/user, subject to proper installation, operation, maintenance and written terms. Register within 30 days of installation. Standard coverage applies in the United States, Canada, Puerto Rico and U.S. territories. Travel, mileage, premium labor and failures caused by external utilities or inadequate maintenance are excluded; review the complete warranty.

Compare 22-inch modular crescent ice makers

Match the cooling system and electrical frequency to your installation. Each head, storage bin or dispenser, and any remote condenser is sold separately.

• KM-520MAJ — air-cooled
• KM-520MRJZ — remote air-cooled
• KM-660MAJ — air-cooled
• KM-660MWJ — water-cooled
• KM-660MRJZ — remote air-cooled
• KM-520MAJ-E — 50 Hz air-cooled
• KM-660MAJ-E — 50 Hz air-cooled
• KM-520MWJ — water-cooled
• KM-350MWJ — water-cooled

Product documents

• KM-520MAJ Specification Sheet
• Installation and Operation Manual
• KM Series Limited Warranty