16
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 fl ow preventer may be required in the cooling water circuit.
• In order to maintain the proper high side pressure, the condenser water supply inlet
temperature must be in the 45°F to 90°F (7°C to 32°C) range.
Fig. 5
KM-151BWH
2-inch (5-cm) air
gap
Drain
Floor
Icemaker Water Supply
Inlet 1/2” FPT
Icemaker Drain
Outlet 3/4” FPT
Condenser Drain
Outlet 1/2” FPT
Condenser Water
Supply Inlet 1/2” FPT
To approved
fl oor drain
1/4” fall
per foot
Icemaker Water Supply
Line Shut-off Valve
Icemaker Water Supply
Line Drain Valve
Minimum 1/4” Nominal ID
Copper Water Tubing
Condenser Water Supply
Line Shut-off Valve
Condenser Water Supply
Line Drain Valve
Minimum 3/4” Nominal
ID Hard Pipe
Minimum 1/4” Nominal
ID Hard Pipe
Trap
Be sure there is suffi cient
extra water supply line and
drain line for the appliance
to be pulled out for service.
Separate piping to approved
drain. Leave a 2-inch (5-cm)
vertical air gap between the
end of each pipe and the
drain.
