Wine-Mate SSHWC Series - Manual (Page 22)

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evaporator unit (including liquid line connection, solenoid valve, expansion
valve, and suction line connection), returning to insulated suction line, suction
valve and then back to condensing unit.
2) If the condensing unit is located below the evaporator unit, use inverted U
trap to prevent liquid from flooding back to the compressor; if the elevation
difference is more than 10 ft or the line set exceeds 75 ft, use both inverted U
trap and suction accumulator.
3) If the condensing unit is located more than 10 ft above the evaporator unit,
use U trap to aid oil returning to the compressor.
4) Complete pipe brazing, check solenoid valve and expansion valve restrictions
and test leak.
5) Hook up the drain line and check if water drains.
The line sizes and refrigerant charges are listed as follows.
Model No
Equivalent
Line Set
Liquid
Line
Suction
Line
Drain Line
Recommended
Charge
WM-2500SSHWC <= 75 FT 1/4" OD 3/8” OD 7/8” OD R134a/19 OZ
WM-4500SSHWC <= 75 FT 1/4" OD 1/2” OD 7/8” OD R134a/26 OZ
WM-6500SSHWC <= 75 FT 1/4" OD 1/2” OD 7/8” OD R134a/32 OZ
WM-8500SSHWC <= 75 FT 3/8" OD 5/8” OD 7/8” OD R134a/40 OZ
7. Water Piping
f a water pump is used, install it before the water inlet so that the condenser
cooling water is fed from the discharge side of the pump.
Model No Condensing Unit
Water Flow
(75°F inlet, gal/min)
Water-in
Connection
Water-out
Connection
Water Pressure
Drop (PSI)
WM-2500SSHWC WM-250SCU-WC 0.2 3/8” FPT 1/2" ODF SOLDER 0.2
WM-4500SSHWC WM-450SCU-WC 0.4 3/8” FPT 1/2" ODF SOLDER 0.2
WM-6500SSHWC WM-650SCU-WC 0.6 3/8” FPT 1/2" ODF SOLDER 0.2
WM-8500SSHWC WM-850SCU-WC 0.8 3/8” FPT 1/2" ODF SOLDER 0.4
8. Connecting Electrical Wires
Connect all electrical components using the wiring diagrams in accordance with
all state and local codes.
9. Evacuating, Charging and Starting the system
CAUTION:
• Always use the superheat and subcooling, pressure readings to charge
refrigerant properly; the listed charge amounts are used for reference
only.
1) Evacuate the system; both discharge and suction valves must be in the
middle positions during evacuating.