Hoshizaki KM-322MAK 489 lb/Day Air-Cooled Crescent Ice Machine
KM-322MAK
Product overview
The Hoshizaki KM-322MAK is an air-cooled modular ice-making head that produces individual crescent cubes for beverage service. Its stainless steel exterior and double-sided stainless steel evaporator support commercial ice production of up to 489 lb per 24 hours at 70°F air / 50°F water. A compatible storage bin or dispenser and any required top kit are sold separately; this head has no built-in ice storage.
CycleSaver operation, EverCheck alerts and removable air filters support operation and routine upkeep. Ultrasonic bin control monitors ice levels, while CleanAssist provides a simple one-hour cleaning process. Complete the prescribed sanitizing procedure as well.
- 489 lb per day: Rated at 70°F air / 50°F water.
- 115V single-phase: Hardwired supply; no cord or plug included.
- 22-inch nominal width: Ice-making head only; storage bin sold separately.
Specifications
| Model | KM-322MAK |
|---|---|
| Ice form | Individual crescent cubes |
| Cooling | Air-cooled |
| Production at 70°F air / 50°F water | 489 lb per 24 hours |
| Production at 90°F air / 70°F water | 400 lb per 24 hours |
| Electrical supply | 115V / 60Hz / single phase |
| Rated amperage | 9.7 A |
| Power connection | Hardwired on site; no cord or plug included |
| Nominal cabinet width | 22 inches; allow for panel and connection projections |
| Ice-making head height | 28 inches; bin and legs are additional |
| Exterior / evaporator | Stainless steel |
| Refrigerant | R-290, flammable |
| Heat rejection | 7,700 BTU/hr |
| Operating ambient | 45–100°F, indoors |
| Water temperature | 45–90°F |
| Water pressure | 10–113 PSIG |
| Bin control | Factory-installed ultrasonic sensor |
Production and utility use
At 90°F air / 70°F water, this model uses 4.9 kWh and 18 gallons of potable water per 100 lb of ice. Output varies with installation conditions, ambient temperature and incoming water temperature. Daily production does not describe storage capacity; select the bin for the amount of ice that needs to be held between busy periods.
Installation and storage assembly
Install indoors on a level, securely attached compatible bin or dispenser, away from ovens, grills and other heat-producing equipment. Allow at least 6 inches behind, beside and above the head for airflow and service. Check the full dimensional drawing, panel projections, ice-drop opening, bin height and leg height before preparing the site. The nominal width alone does not establish bin or dispenser compatibility.
Use a bin or dispenser without electrical components, or one designed for use with flammable refrigerants, in the size and configuration permitted by the installation manual. Confirm the exact top kit and ice-drop opening; keep the bin-control sensing area unobstructed.
Electrical and water connections
A licensed electrician must provide an independent, grounded 115V / 60Hz / single phase supply sized to the delivered unit’s electrical nameplate and installation instructions. Connect the neutral and grounding conductors as directed by the wiring diagram; a receptacle alone is not a complete installation.
If GFCI protection is required, use a GFCI breaker rather than a GFCI receptacle.
Provide a potable-water supply with an accessible shut-off valve and a separate gravity drain for the ice maker and storage bin. Drain piping must slope downward, remain vented as instructed and terminate with the required air gap. Follow the model’s connection drawing and local plumbing requirements; water treatment should match the site’s water quality.
R-290 installation safety
The 145 g R-290 charge requires a minimum room floor area of 6.9 m² (74.7 sq. ft.) for operation or storage. Do not install in a public corridor or lobby. Installation altitude must not exceed 7,000 m (22,965 ft.). Keep ventilation openings clear and have refrigerant-system work performed by personnel trained for flammable refrigerants.
Cleaning and maintenance
Clean the ice scoop daily, inspect the air filters every two weeks and wash dirty filters with warm water and a neutral cleaner. Wipe the exterior monthly. Have a qualified technician check external water filters and clean the underside, top kit and bin surfaces monthly and clean the bin-control lens as directed.
Have the ice maker and storage assembly cleaned and sanitized at least annually, with more frequent service when water quality or local sanitation requirements demand it. Follow the manual’s chemical concentrations, rinsing and sanitation sequence. Disconnect and lock out power before maintenance; switching the control off does not isolate every electrical load. Arrange draining and winterization before extended non-use or freezing conditions.
Have a qualified technician inspect and clean the condenser annually, inspect water hoses and clean or replace them as needed, and clean the inlet and cleaning-valve screens and clean and inspect the drain valve.
Warranty
Manufacturer coverage includes three years of parts and labor on the machine, five years of parts and labor on the evaporator, and five years of parts coverage on the compressor and air-cooled condenser. Register within 30 days of installation. Coverage is for the original owner/user in the United States, Canada, Puerto Rico and U.S. territories, subject to proper installation and maintenance and the written warranty terms and exclusions.
Compare K-generation crescent ice machines
22-inch nominal width, 115V: KM-322MAK · KM-522MAK · KM-622MAK
30-inch nominal width, 115V: KM-330MAK · KM-530MAK · KM-730MAK
30-inch nominal width, 208–230V: KM-830MAK2 · KM-1130MAK2
Compare production, electrical supply, refrigerant and installation clearances before selecting a model. Each ice-making head and its compatible storage assembly are purchased separately.
Product documents
Hoshizaki KM-322MAK 489 lb/Day Air-Cooled Crescent Ice Machine images
