Water-Cooled Condenser - Hoshizaki KMD-460MAJ Instruction Manual

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
Vent Tube
Condenser
Drain Outlet
3/8" FPT
Condenser Water
Supply Inlet
1/2" FPT
Icemaker
Drain Outlet
3/4" FPT
Vent Tube
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. 9
Model Shown:
Connection to an Open Drain System
KMD-460MWJ
Condenser Drain
Outlet
3/8" Female Pipe
Thread (FPT)
Minimum 1/4" Nominal ID Copper
Water Tubing or Equivalent
Icemaker
Ice
Storage
Bin
Water-Cooled Models
17
Minimum Condenser
Drain Line Size
1/4" Nominal ID Hard Pipe
or Equivalent
Shut-Off Valve
Be sure there is sufficient
Drain Valve
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.
2-inch (5-cm) air gap
Floor Drain