F. Water Supply and Drain Connections
See Fig. 4
WARNING
Water supply and drain connections must be installed in accordance with applicable
national, state, and local regulations.
NOTICE
• Normal operating water temperature should be within 45°F to 90°F (7°C to
32°C). Operation of the appliance, for extended periods, outside of this normal
temperature range may affect appliance performance.
• Water supply pressure must be a minimum of 10 PSIG and a maximum of
113 PSIG. If the pressure exceeds 113 PSIG, the use of a pressure reducing valve
is required.
• To prevent damage to the appliance, do not operate the appliance when the water
supply is off, or if the pressure is below 10 PSIG. Do not run the appliance until
the proper water pressure is reached.
• External filters, strainers, or softeners may be required depending on water quality.
Contact your local Hoshizaki Certified Service Representative or local Hoshizaki
distributor for recommendations.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• Water supply inlet is 1/2” female pipe thread (FPT).
• A minimum of 1/4” nominal ID copper water tubing or equivalent is required for the
icemaker water supply line. An icemaker water supply line shut-off valve and drain valve
must be installed. Be sure there is sufficient extra water supply line for the unit to be pulled
out for service.
• Water supply pressure should be a minimum of 10 PSIG and a maximum of 113 PSIG.
If the pressure exceeds 113 PSIG, the use of a pressure reducing valve is required.
• Icemaker drain outlet is 3/4” FPT. A minimum of 3/4” nominal ID hard pipe or equivalent is
required for the icemaker drain line. Be sure there is sufficient extra drain line for the unit
to be pulled out for service.
• The icemaker drain line and ice storage bin drain line, must be run separately.
• Drain lines must have 1/4” fall per foot (2-cm per 1 m) on horizontal runs to get a good
flow. A vented tee connection is also required for proper flow.
• External filters, strainers, or softeners may be required depending on water quality. Contact
your local Hoshizaki Certified Service Representative for recommendations.
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of
2 vertical inches (5-cm) should be between the end of the drain pipes from the icemaker,
dispenser unit/ice storage bin, and water-cooled condenser (if applicable) and the floor
drain.
12
