Hoshizaki STACKABLE CRESCENT CUBER KM-2100SWH3 - Manual (Page 24)

24
Fig. 18
KM-2100SWH3
Connection to a Closed Loop System
Bin Drain Outlet 3/4" FPT
Condenser Water Supply Line Shut-Off Valve
Condenser Water Supply Line Drain Valve
Icemaker Water Supply Line Shut-Off Valve
Icemaker Water Supply Line Drain Valve
Condenser Return Outlet 3/8" FPT
Icemaker Water Supply Inlet 1/2" FPT
Condenser Return Line Shut-Off Valve
Condenser Return Line Drain Valve
Icemaker
Drain Outlet
3/4" FPT
Condensation
Drain Outlet
3/8" OD
Stainless Tube
Bin
Icemaker
Separate piping to
approved drain. Leave a
2 inch (5 cm) vertical air
gap between the end of
each pipe and the drain.
2 inch (5 cm)
air gap
Floor
Drain
Condenser Water Supply Inlet 1/2" FPT
b) Connection to a Closed Loop System
• Condenser water supply inlet is 1/2" female pipe thread (FPT). A minimum of 3/8" OD
copper tubing is recommended for the condenser water supply line.
• Condenser return outlet is 3/8" FPT. A minimum of 3/8" OD hard pipe is recommended for
the condenser return line.
• Shut-off valves and drain valves should be installed at both the condenser water supply
inlet and condenser return outlet.
• The water supply to the condenser should not drop below 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 outlet temperature is not in the proper range, adjust the
water-regulating valve to bring it into range.