Unit Description - Trane RTWB Helical-Rotary Installation Operation & Maintenance

Unit description

The RTWB units are helical-rotary
type, water-cooled, liquid chillers
designed for indoor installation . The
units have two independent
refrigerant circuits, with one
compressor per circuit.
Each RTWB unit is completely
assembled, wired, leak-tested,
dehydrated, charged, and tested for
proper control operation prior to
shipment. The chilled-water inlet and
outlet openings are covered for
shipment.
The RTWB series features Trane's
exclusive Adaptive Control
with Clear Language Display. It
monitors the control variables that
govern the operation of the unit.
Adaptive Control logic can correct
these variables, when necessary, to
optimize operational efficiencies,
avoid chiller shutdown, and keep
producing chilled water.
Compressor unloaders are oil
pressure operated. Each refrigerant
circuit is provided with filter,
electronic expansion valve, and
charging valves.
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General
Information
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™ logic
Figure 2 -– Component location for typical RTWB unit
1 Starter panel
2 Control panel
3 Evaporator
4 Oil separator
5 Helical-Rotary Compressor
7 Condenser-water outlet
8 Condenser-water inlet
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Figure 3 – Component location for typical RTWB unit (back view)
3 Evaporator
5 Helical-Rotary Compressor
6 Condenser
9 Evaporator-water outlet
10 Evaporator-water inlet
11 Electronic expansion valve
12 Filter dryer
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RTWB-SVN01B-E4
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