CellarPro 4000SWC SPLIT SYSTEM WATER COOLED, 7649 - Manual (Page 24)

24 V10.14
Evacuation, Leak Detection, and Charging
Important note: The condensing unit and evaporator are shipped with a nitrogen
holding charge. Please verify positive pressure through the access valve prior to
installation. If you cannot verify the holding charge, please contact Cellarpro at
707.794.8000.
Once the piping is installed, the following steps should be performed to ensure a
dry and leak-free system:
1. The Condensing unit is pre-charged with compressor oil. To avoid moisture
contamination of the oil, do not leave the system open to atmosphere for more
than 15 minutes.
2. Flare style back-seating liquid and suction Rotolock valves are provided on the
condensing unit for the refrigerant line connections. Use a service valve wrench
to adjust the valve stem to avoid rounding the valve stem edges. The valve is
closed with the stem turned in fully clockwise, open with the stem turned out
fully counterclockwise. The access ports are back-seating, meaning they are
closed when the stem is in the fully open or fully closed position. To open the
access ports for evacuation, charging, and pressure readings, connect pressure
hose to the port while the valve is in the fully open position, then turn the stem
in one or two turns clockwise.
3. Connect water lines to condensing unit. Installation with water towers or
evaporative coolers and closed loop systems should have bleed valves and
sediment traps to prevent fouling the condenser with suspended matter. Do not
connect to potable or city water supplies.
4. Dual Power Source / Valve Control Systems Only: Supply power to the
Evaporator only - DO NOT connect power to the Condensing unit. Turn on the
temperature controller, which will energize and open the liquid line solenoid