ENGLISH
14
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)
3/8" Nominal ID Copper
Water Tubing or Equivalent
1/2" Female Pipe
Thread (FPT)
3/8" 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 7°C and the condenser drain outlet temperature must
be in the 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).
Fig. 6
Water-Cooled Models
Connection to an Open Drain System
Model Shown:
KM-470AWJ/
KM-470AWJ-S
Icemaker
Icemaker Water
Supply Inlet
1/2" FPT
Bin Drain Outlet
3/4" FPT
Icemaker
Drain Outlet
3/4" FPT
Condenser Water
Supply Inlet
1/2" FPT
Condenser
Drain Outlet
1/2" FPT
Vent Tube
Icemaker
Condensation
Drain Outlet
3/8" OD Hard Tube
Vent Tube
Minimum 3/8"
Nominal ID
Hard Pipe or
Equivalent
Shut-Off Valve
Minimum 3/8" Nominal ID Copper
Water Tubing or Equivalent
Minimum 3/8" Nominal ID Copper
Water Tubing or Equivalent
Drain Valve
Ice
Storage
Bin
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Separate piping to
approved drain. Leave
a 5-cm vertical air gap
between the end of each
pipe and the drain.
Be sure there is sufficient
extra water supply line and
drain line for the appliance
to be pulled out for service.
5-cm air gap
Floor Drain
