Trane Centrifugal Water Chillers CVGF - Manual (Page 26)

Compressor-Motor Starter
Unit-mounted starters can either be a star-delta or solid-state in NEMA 1 type enclosure rated up
to 952 RLA at 380-480 Volts (star-delta), 900 RLA at 481-600 Volts (star-delta), and 1472 RLA at
380-600 Volts (solid-state).
Remote-mounted starters can either be star-delta or solid-state for low voltage. Across-the-line,
primary reactor, or autotransformer for medium and high voltage. All in NEMA 1 type enclosures up
to 1402 RLA at 380-600 volts (star-delta), 1472 RLA at 380-600 Volts (solid-state), and 360 RLA at
3300-6600 Volts (x-line, primary reactor, and autotransformer).
Unit-mounted or remote-mounted starters for Europe (CE mark) will be star-delta, solid-state,
across-the-line, primary reactor, and autotransformer only in a IP 10 enclosure.
A steel panel door with optional mechanical interlock disconnects the system when the door
is opened (required for CE listing). The panel also contains three-phase current transformer for
overload protection, and an oil pump starter with overloads. The starter is factory mounted and
wired to the compressor motor and the control panel. The CVGF chiller/starter assembly is factory
tested.
Optional remote-mounted electromechanical starters are available.
Isolation Pads
Molded neoprene isolation pads are supplied with each chiller for placement under all support
points. Spring isolators are optionally available.
Refrigerant and Oil Charge
A full charge of oil is supplied with each unit. The oil ships in the unit’s sump and the refrigerant
ships directly to the job site from refrigerant suppliers.
Painting
All painted CVGF surfaces are coated with two coats of air-dry, beige primer-finisher prior to
shipment.
Insulation
The chiller can be ordered with or without factory-applied insulation. Factory-supplied insulation is
applied to all low temperature surfaces including the evaporator, water boxes and suction elbow.
Insulation material is 19mm (¾ in.) Armafl ex II or equal (thermal conductivity = 0.04 W/m· ℃; 0.3
Btu·in/h·ft²·°F). The oil sump is covered with 9.5 mm (3/8 in.) and 13 mm (½ in.) insulation.
Rigging
Evaporator and condenser tube sheets provide rigging support points. A rigging diagram is affi xed
to the chiller.
Quality
The chiller manufacturing facility is ISO 9001 certifi ed.
26
Mechanical Specifi cations
CTV-PRC001-E4