Hoshizaki KM-1400SWH/3-M Connection to an Open Drain System, Water-CooledCondenser

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 3/8" 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" 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.

•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 Water
Supply Inlet
1/2" FPT
Condenser
Drain Outlet
3/8" FPT
Icemaker	Bin
Drain Outlet
3/4" FPT
Condensation
Drain Outlet
3/8" OD Hard Tube

Minimum 3/8" Nominal Hard Pipe

Minimum 3/8" Nominal Copper Water Tubing

Minimum 1/2" Nominal Copper Water Tubing

Icemaker Water Supply Line

Shut-Off Valve

Icemaker

	Icemaker Water Supply Line
	Drain Valve
Vent Tube	Condenser Water Supply Line
	Shut-Off Valve
	Condenser Water Supply Line
	Drain Valve
Minimum	Separate piping to approved drain.
3/4" Nominal
	Leave a 2-inch (5-cm) vertical air
Hard Pipe
	gap between the end of each pipe
Vent Tube	and the drain.
	2-inch (5-cm) air gap

Bin Drain Outlet

See Manufacturer's Instructions

Floor Drain

Fig. 9	KM-1400SWH/3-M
	Connection to an Open Drain System

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