Water-Cooled Condenser; A) Connection To An Open Drain System - Hoshizaki KML-250MWH Instruction Manual

2. Water-Cooled Condenser

a) Connection to an Open Drain System

• Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 1/4" nominal
ID copper water tubing or equivalent is required for the condenser water supply line.
• A condenser water supply line shut-off valve and drain valve should be installed.
• Condenser drain outlet is 3/8" FPT. A minimum of 1/4" nominal ID hard pipe or equivalent
is required for the condenser drain line.
• 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
Drain Outlet
3/8" FPT
Condenser Water
Supply Inlet
1/2" FPT
Icemaker
Drain Outlet
3/4" FPT
Fig. 5
Icemaker
Bin
KML-250MWH
Connection to an Open Drain System
Icemaker Water Supply Line
Shut-Off Valve
Condenser Water Supply Line
Shut-Off Valve
Icemaker Water Supply Line
Drain Valve
Condenser Water Supply Line
Drain Valve
Bin Drain Outlet
3/4" FPT
Separate piping to approved drain.
Leave a 2-inch (5-cm) vertical air gap
between the end of each pipe and
the drain.
14
2-inch (5-cm) air gap
Floor Drain