11
Separate piping to approved drain. Leave a
2-inch (5-cm) vertical air gap between the
end of each pipe and the drain.
Icemaker Water Supply Line Shut-Off
Valve
Icemaker Water Supply Line Drain
Valve
Icemaker
Icemaker Water
Supply Inlet
1/2" FPT
2-inch (5-cm) air gap
Floor
Drain
Icemaker
Drain Outlet
3/4" FPT
Bin
Condensation
Drain Outlet
3/8" (9.5 mm) OD Hard Tube
Minimum 3/8" (10 mm) Nominal Copper Water Tubing
Vent Tube
Vent Tube
Minimum
3/4" (18 mm)
Nominal Hard
Pipe
Bin Drain Outlet
See Manufacturer's Instructions
Fig. 16
KM-1301SAJ-E KM-1301SRJ-E
H. Water Supply and Drain Connections
See Fig. 16, 17, or 18
WARNING
1. Water supply and drain connections must be
installed in accordance with applicable national,
state, and local regulations.
2. The icemaker water supply must be potable water.
3. 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.
4. Water supply pressure should be a minimum of
10 PSIG (0.7 bar) and a maximum of 113 PSIG
(7.8 bar). If the pressure exceeds 113 PSIG (7.8
bar), the use of a pressure reducing valve is
required. DO NOT throttle back the supply tap.
5. To prevent damage to equipment, do not operate
the icemaker when the water supply is off, or if the
pressure is below 10 PSIG (0.7 bar). Do not run
the icemaker until the proper water pressure is
reached.
6. This icemaker will not work at sub-freezing
temperatures. To prevent damage to the
water supply line, drain the icemaker if the air
temperature is going to go below 32°F (0°C). For
details, see "II.C. Preparing the Icemaker for Long
Storage."
• A plumbing permit and services of a licensed plumber
may be required in some areas.
• External filters, strainers, or softeners may be required
depending on water quality. Contact your local Hoshizaki
distributor for recommendations.
• The icemaker and condensation drain line(s), storage
bin drain line, and water-cooled condenser drain line (if
applicable) must be run separately. When stacking units,
each unit must have independent drain lines.
• 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.
• 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 (if applicable) and the floor drain.
1. Icemaker
• Icemaker water supply inlet is 1/2" female pipe thread
(FPT). A minimum of 3/8" (10 mm) 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. A ball valve is recommended for
the shut-off valve. If another type of valve is used, it should
not have an opening smaller than the water supply line
ID as this can cause a reduced water flow rate which can
lead to poor harvest performance and/or freeze up.
• Icemaker drain outlet is 3/4" FPT. A minimum of
3/4" (18 mm) nominal hard pipe is recommended for the
icemaker drain line. Condensation drain outlet is 3/8"
(9.5 mm) OD hard tube. The condensation drain line can
be connected to the icemaker drain line or can be run
separately.
Summary of Contents for KM-1301S J-E Series
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