Hoshizaki KM-1900SAH/3 Ice Maker User Manual


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Fig. 19
KM-1900SWH/3
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 Hard
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"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3/8"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 return 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 return outlet temperature 5 minutes after a
freeze cycle starts. If the condenser return 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).
Minimum 3/8" Nominal
ID Copper Water Tubing
Minimum 3/8" Nominal
ID Copper Water Tubing
Minimum 3/4"
Nominal ID Hard Pipe
Vent Tube
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