Mechanical Specifications
TheTrane CVGF packaged centrifugal water chillers using
Compressor
100 - 20 percent capacity modulation by electrically actuated guide vanes upstream of each impeller.
Drive Train
The drive train consists of helical bull and pinion gears. Gear tooth surfaces are case hardened and precision ground. The
Motor
The motor is a hermetic, liquid refrigerant cooled,
Lubrication System
The lubrication system consists of an internal oil sump with heaters, positive displacement oil pump, brazed plate
Economizer/Orifice
The economizer consists of a carbon steel shell with internal components designed to prevent liquid carryover to the compressor. Liquid refrigerant is admitted through a single calibrated orifice (no moving parts) which maintains a pressure differential between condenser and economizer.
Evaporator
The evaporator is designed, tested and stamped in accordance with ASME Boiler and Pressure Vessel Code or PED (European Code) for refrigerant side working pressure of 15.2 bars (220 psig). It consists of a carbon steel shell
with steel tube sheets welded to each end. Intermediate tube support sheets positioned along the shell axis prevent relative tube motion. Individually replaceable externally finned and internally grooved 19 mm (¾ in.) and
25.4mm (1.0 in.) nominal diameter seamless copper tubes are mechanically expanded into tube sheets.
Two or three pass water boxes rated at
10.5bar (150 psi) is standard. Grooved pipe stubs for Victaulic couplings are standard; flanged connections are optionally available. The waterside is hydrostatically tested at 1.5 times maximum working pressure.
Liquid refrigerant is admitted to the evaporator through a single calibrated orifice (no moving parts) which maintains a pressure differential between the economizer and the evaporator.
Condenser
The condenser is designed, tested and stamped in accordance with the ASME Boiler and Pressure Vessel Code or PED (European Code) for a refrigerant side working pressure of 15.2 bars (220 psig). It consists of a carbon steel shell with steel tube sheets welded to each end. Individually replaceable, externally finned and internally grooved 19 mm (¾ in.) and 25.4 mm (1.0 in.) nominal diameter seamless copper tubes are mechanically expanded into the tube sheets.
2 0 | |
|