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14
G. Water Supply and Drain Connections
See Fig. 9 or 10
WARNING
1. Water supply and drain connections must be installed in accordance with
applicable international, national, state, and local regulations.
2. Normal operating water temperature should be within 45°F to 90°F (7°C
to 32°C). Operation of the icemaker, for extended periods, outside of this
normal temperature range may affect icemaker performance.
3. To prevent damage to equipment, do not operate the icemaker when the
water supply is off, or if the pressure is below 10 PSIG. Do not run the
icemaker until the proper water pressure is reached.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• External lters, strainers, or softeners may be required depending on water quality. Contact
your local Hoshizaki distributor for recommendations.
• 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.
• The icemaker and condensation drain line(s), storage bin drain line, and water-cooled
condenser 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
ow. A vented tee connection is also required for proper ow.
• 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
and condensation drain, storage bin, and water-cooled condenser and the oor drain.
1. Icemaker
• Icemaker water supply inlet is 1/2" female pipe thread (FPT). A minimum of 1/2" nominal
copper water tubing is recommended for the icemaker water supply line.
• An icemaker water supply line shut-off valve and drain valve should be installed.
• Icemaker drain outlet is 3/4" FPT. A minimum of 3/4" nominal hard pipe is recommended
for the icemaker drain line. Condensation drain outlet is 3/8" OD hard tube. The
condensation drain line can be connected to the icemaker drain line or can be run
separately.