Hoshizaki DKM-500BAH, Instruction Manual

Page: 16 / 32

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 3/8" 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 (rotate counterclockwise to raise temperature or
clockwise to lower temperature).
Icemaker
Drain Outlet
3/4" FPT
Icemaker Water
Supply Inlet
1/2" FPT
Condenser Water
Supply Inlet
1/2" FPT
Condenser Drain
Outlet 3/8" FPT
Storage Bin Drain
Outlet 3/4" FPT
Shut-Off Valve
Drain Valve
Shut-Off Valve
Drain Valve
Vent Tube
Vent Tube
Vent Tube
Icemaker
Minimum 1/4"
Nominal ID Copper
Water Tubing or
Equivalent
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Minimum 1/4"
Nominal ID Hard
Pipe or Equivalent
Floor Drain
Separate piping to approved
drain. Leave a 2-inch (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.
2-inch (5-cm) air gap
Minimum 1/4" Nominal ID Copper
Water Tubing or Equivalent
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Fig. 4
Water-Cooled Model
Connection to an Open Drain System
Model Shown:
DKM-500BWH