Hoshizaki KM-1301S_J-E Notice D'installation page 12

2. Water-Cooled Condenser
a) Connection to an Open Drain System
• Connecting potable water to the condenser will not affect
performance but may result in high use/waste.
• Condenser water supply inlet is 1/2" female pipe thread
(FPT). A minimum of 3/8" (10 mm) nominal copper water
tubing is recommended 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 3/8"
(10 mm) nominal hard pipe is recommended for the
condenser drain line.
• In some areas, a back flow preventer may be required in
the cooling water circuit.
Icemaker Water
Supply Inlet
1/2" FPT
Condenser Water
Supply Inlet
1/2" FPT
Condenser
Drain Outlet
3/8" FPT
Bin
Icemaker
Drain Outlet
3/4" FPT
Condensation
Drain Outlet
3/8" (9.5 mm) OD Hard Tube
Minimum 3/8" (10 mm)
Nominal Hard Pipe
Fig. 17
Icemaker
Vent Tube
Bin Drain Outlet
See Manufacturer's Instructions
KM-1301SWJ-E
Connection to an Open Drain System
• 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).
Minimum 3/8" (10 mm) Nominal Copper Water Tubing
Minimum 3/8" (10 mm) Nominal Copper Water Tubing
Icemaker Water Supply Line Shut-Off
Valve
Icemaker Water Supply Line Drain
Valve
Condenser Water Supply Line Shut-Off
Valve
Condenser Water Supply Line Drain
Valve
Minimum
3/4" (18 mm)
Nominal Hard
Separate piping to approved drain. Leave a
Pipe
2-inch (5-cm) vertical air gap between the
end of each pipe and the drain.
Vent Tube
12
2-inch (5-cm) air gap
Floor
Drain