Hoshizaki DCM-751BAH(-OS) Ice Maker User Manual


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20
b) Connection to a Closed Loop 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.
•Condenserreturnoutletis3/8"FPT.Aminimumof1/4"nominalIDcopperwatertubingor
equivalent is required 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 drain outlet temperature
must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker installation
is complete, conrm 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
at 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).
Condenser Return
Line Shut-Off Valve
Condenser Return
Line Drain Valve
Icemaker Water Supply
Line Shut-Off Valve
Condenser Water Supply
Line Shut-Off Valve
Condenser Water Supply
Line Drain Valve
Condenser Water
Supply Inlet
1/2"FPT
Drip Tray
Drain Outlet
3/4"FPT
Fig. 6
DCM-751BWH(-OS)
Connection to a Closed Loop System
Icemaker
Stand
Icemaker Water Supply
Line Drain Valve
Storage 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.
Floor
Drain
Condenser
Return Outlet
3/8"FPT
Icemaker Water
Supply Inlet
1/2"FPT
Minimum1/4"NominalID
Copper Water Tubing
Vent
Tube
Minimum3/4"NominalID
Hard Pipe
2-inch (5-cm)
air gap
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