ENGLISH
15
Separate piping to approved drain.
Leave a 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
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-590DJ KM-590DSJ
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 7°C to 32°C. Operation of the icemaker, for
extended periods, outside of this normal temperature
range may aff ect icemaker performance.
4. Water supply pressure should be a minimum of
0.07MPa (0.7 bar) and a maximum of 0.78MPa
(7.8 bar). If the pressure exceeds 0.78MPa (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 0.07MPa (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 0°C. For details, see "III.C.
Preparing the Icemaker for Long Storage."
• A plumbing permit and services of a licensed plumber
may be required in some areas.
• External fi lters, 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 2cm tall per 1 m on horizontal
runs to get a good fl ow. A vented tee connection is also
required for proper fl ow.
• Drain lines should not be piped directly to the sewer
system. An air gap of a minimum of 5 vertical centimeter
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 fl oor
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 fl ow
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.
