B) Connection To A Closed Loop System - Hoshizaki KMD-850MAH Instruction Manual

b) Connection to a Closed Loop 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
• Shut-off valves and drain valves must be installed at both the condenser water supply inlet
and condenser return outlet.
• Minimum water flow to the condenser is 4 GPM.
• The pressure differential between the condenser water supply inlet and condenser return
outlet must be no less than 10 PSIG.
• When using a glycol blend, the solution mixture should be less than 30% glycol.
• 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 return 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 return outlet temperature 5 minutes after a
freeze cycle starts. If the condenser return 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
Icemaker
Condensation
Drain Outlet
5/8" OD Hard Tube
Icemaker
Drain Outlet
3/4" FPT
Condenser Water
Supply Inlet
1/2" FPT
Condenser
Return Outlet
3/8" FPT
Ice
Vent Tube
Storage
Bin
Bin Drain
Outlet
3/4" FPT
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Fig. 6
Model Shown:
Connection to a Closed Loop System
KMD-901MWH
Condenser
Return Outlet
3/8" Female Pipe
Thread (FPT)
Icemaker
Minimum 1/4" Nominal ID Copper
Water Tubing or Equivalent
Water-Cooled Models
19
Minimum Condenser
Return Line Size
1/4" Nominal ID Copper
Water Tubing or Equivalent
Shut-Off Valve
Drain
Be sure there is sufficient
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
Minimum 1/4"
drain.
Nominal ID
Copper Water
Tubing or
Equivalent
2-inch (5-cm) air gap
Floor Drain