Hoshizaki recommends external water filtration systems to pair with their ice and water dispensers.

Hoshizaki offers water filters which primarily serve the purpose of protecting the machine from scale and assuring good tasting ice cubes. Some recommended Hoshizaki water filters include:

1. H9320-51 Single Water Filter System
   Ideal for smaller dispensers (under 900 lbs/day ice). Reduces 97%+ chlorine, sediment, and scale; NSF/ANSI 42 certified for taste/odor. Perfect for basic setups like countertop models.
2. H9320-52 Twin Water Filter System
   For mid-sized dispensers (900–1,300 lbs/day ice). Dual 4HC-H cartridges (4 GPM flow, 42,000-gallon capacity). Provides enhanced filtration for higher volumes, filtering dirt, rust, and lime scale while maintaining bacteriostatic effects. Great for busy hospitality environments..
3. H9320-53 Triple Water Filter System
   For high-volume dispensers (over 1,300 lbs/day ice). Three 4HC-H cartridges (6 GPM flow, 63,000-gallon capacity). Multi-stage filtration for heavy sediment/scale areas, ensuring optimal performance and reduced maintenance. Suited for large healthcare or hotel setups.

For addressing other water quality concerns such as lead, PFAS, or microplastics, it's recommended to pair your Hoshizaki system with an external filter such as the Pentair Everpure brand.

Below are generally the requirements for Hoshizaki Ice and Water Dispensers. View the model's Spec Sheet and Owner's Manual for full requirements.

Space: Allow 6" clearance on all sides for ventilation and access. Place on a level surface, indoors (45–100°F), away from heat/sunlight. Optional stands available for freestanding setups.

Electrical: Dedicated 115V/60Hz/1-phase circuit (7–10A), NEMA 5-15R outlet, grounded. Voltage: 104–127V; no extension cords.

Water Supply: Potable water, 1/4" or 3/8" FPT inlet, 10–113 PSIG, 45–90°F. Use external filter (e.g., Hoshizaki H9320 series) for scale/chlorine; size for 12–20 gal/100 lbs ice.

Drainage: 3/4" FPT drain with 1" air gap to floor drain; slope 1/4" per foot.

Other: Ensure airflow for air-cooled units. Sanitize before use. Follow local codes; professional installation recommended for warranty (3-yr parts/labor, 5-yr compressor). Check model manual for specifics.

Hoshizaki recommends annual cleaning and sanitization, or more frequently in hard-water areas. Use approved cleaners like ScaleAway for the stainless steel evaporator; always empty the bin and sump first, following the Owner's Manual for steps like draining the reservoir.

Yes, Hoshizaki dispensers like the AM-50BAE can use RO water. Minerals can be re-added for taste if needed. For optimal performance, pair with a Hoshizaki filtration system like the H9320-51 to prevent issues like scale or evaporator damage.

Yes, models like the DCM-271BAH are designed for reliable performance in ambient temperatures up to 100°F, making them suitable for demanding environments like busy kitchens or outdoor-adjacent settings.