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General Information
Unit Description
Before shipment, each unit is leak tested, dehydrated,
charged with refrigerant and run tested for proper control
operation.
Water-to-Refrigerant Coils
The water-to-refrigerant heat exchangers are an inner
copper tube or cupro-nickel (option available on the
source-side only) and steel tube (tube-within-a-tube)
design and are leak tested to assure there is no cross
leakage between the water and refrigerant gas.
Water Connections
Water connections are located inside the unit and are
accessible from the back of the unit. The fitting is a female
pipe threaded connection. The size of the connection is 1"
for the 5 ton, 1½" for the 10 ton and 2" for the 20 ton unit.
Controls
The control system offered to control the unit is a deluxe
24 volt micro processing board.
All power wiring to the equipment is made at the power.
All low voltage wiring is made at the unit's low voltage
terminal board.
Wiring Connections
Troubleshooting and connection diagrams for the
equipment may be located in the back of this manual.
Deluxe 24V Controls
The Deluxe 24V control design will incorporate a
microprocessor-based control board. The Trane
microprocessor board is factory wired to a terminal strip to
provide all necessary terminals for field connection. The
deluxe board is equipped with a random start relay, anti-
short cycle timer, brown out protection, compressor
disable, unit safety control, diagnostics and a generic relay
(which may be available for field use). Refer to the Control
Power Transformer in Installation chapter for diagnostic
information.
Access Fittings
Connections for the low and high side of the refrigeration
system are located conveniently behind the refrigeration
access panel.
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WSHP-SVX02E-EN
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