Icemaker Water Supply
Inlet 1/2" FPT
Icemaker Drain
Outlet 3/4" FPT
Fig. 5
KM-301BWJ
Condenser Drain
Outlet 1/2" FPT
Condenser Water
Supply Inlet 1/2" FPT
To approved
floor drain
2" (5 cm)
air gap
Drain
Floor
1/4" fall
per foot
Shut-off Valve
Drain Valve
Minimum 1/4" Nominal ID
Copper Water Tubing or
Equivalent
Shut-off Valve
Drain Valve
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Minimum 1/4" Nominal ID
Hard Pipe or Equivalent
Minimum 1/4" Nominal ID
Copper Water Tubing or
Equivalent
Be sure there is sufficient
extra water supply line
and drain line for the
appliance to be pulled
out for service.
Separate piping to
approved drain. Leave a
2" (5 cm) vertical air gap
between the end of each
pipe and the drain.
Vent Tube
2. Water-Cooled Condenser
a) Connection to an Open Drain System
Condenser Water
Supply Inlet
Minimum Condenser
Water Supply Line Size
Condenser Drain
Outlet
Minimum Condenser
Drain Line Size
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID Copper
Water Tubing or Equivalent
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID Hard Pipe
or Equivalent
• A condenser water supply line shut-off valve and drain valve must be installed.
• In some areas, a back flow preventer may be required in the cooling water circuit.
• In order to maintain the proper high side pressure, the condenser water supply inlet
temperature should not drop below 45°F (7°C) and the condenser drain outlet temperature
must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker installation is
complete, confirm the condenser drain outlet temperature 5 minutes after a freeze cycle
starts. If the condenser drain outlet temperature is not in the proper range, use a flat
blade screwdriver to rotate the adjustment screw on the water-regulating valve until the
temperature is in the proper range.
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