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2. Water-Cooled Condenser
a) Connection to an Open Drain System
Condenser Water
Minimum Condenser
Supply Inlet
Water Supply Line Size
1/2" Female Pipe
1/4" Nominal ID Copper
Thread (FPT)
Water Tubing 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 (rotate counterclockwise to raise temperature or
clockwise to lower temperature).
Icemaker Water
Supply Inlet
1/2" FPT
Condenser Water
Supply Inlet
1/2" FPT
Condenser
Drain Outlet
3/8" FPT
Icemaker
Drain Outlet
3/4" FPT
Bin Drain Outlet
3/4" FPT
Minimum 1/4" Nominal ID
Hard Pipe or Equivalent
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Fig. 5
Model Shown:
KM-520MWJ
Condenser Drain
Outlet
3/8" Female Pipe
Thread (FPT)
Icemaker
Ice
Storage
Bin
Water-Cooled Models
Connection to an Open Drain System
Minimum Condenser
Drain Line Size
1/4" Nominal ID Hard Pipe
or Equivalent
Vent Tube
Minimum 1/4" Nominal ID Copper
Water Tubing or Equivalent
Drain Valve
Be sure there is sufficient
extra water supply line and
drain line for the appliance
Icemaker
to be pulled out for service.
Condensation
Drain Outlet
Separate piping to approved
3/8" OD Hard Tube
drain. Leave a 2" (5 cm)
vertical air gap between the
end of each pipe and the
drain.
Vent Tube
18
Shut-Off Valve
2" (5 cm) air gap
Floor
Drain
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