
This manual includes RTAG air cooled screw chiller
installation, operation and maintenance.Related services
shall be done by a qualified professional and technical
personnel.
Warranty scope is suitable for the TRANE company's
general terms and conditions.If without Trane’s written
authorization, any equipment repair, modification, or
operation beyond the operating limits of equipment, or
modification of the equipment control system, and elec-
trical wiring, the consequences are out of place in the
warranty.User’s wrong operation, lack of maintenance
and the guidance of the TRANE companybreach will lose
the warranty rights.
RTAG air cooled screw chiller (60Hz) have models:
premium seasonal efficiency 225, 230, 285, 310, 340, 375,
400, 440 and 460; high efficiency 400 and 500. All models
have dual refrigerant cycle, which shares one water loop
460 Ton PSE unit is two 230 Ton PSE units put together.
RTAG Units are helical-rotary type, air-cooled liquid
chillers, with efficient brass finned air side heat exchang -
er, TRANE patent CHIL water side heat exchanger, and
TRANE proprietary UC800 control. The compressor cir-
cuits are completely assembled, hermetic packages that
are factory-piped, wired, leak-tested, dehydrated, and
tested for proper control operation before shipment.
Chilled water inlet and outlet openings are covered for
shipment. Each compressor has a separate compressor
motor starter. The RTAG series features Trane's exclusive
Adaptive Control™ logic, which monitors the control
variables that govern the operation of the chiller unit.
For fixed speed compressor unloaders are solenoid actu-
ated and oil pressure operated. For variable speed com-
pressor has one more VFD unloader. Each refrigerant
circuit is provided with filter, electronic expansion valve,
and charging valves.
Variable speed compressor installation has requirement
about elevation, temperature and relative humidity.
Elevation should be lower than 1000meter; temperature
should be within the range of -18ºC ~ +52ºC; relative hu-
midity should be smaller than95%RH, no water condens-
es, the detail measurement for the application of exceed
these limitation and other information please refer to the
drive section. And variable speed unit Total Harmonic
Distortion of Current at rating point full load < 40%.
The shell-and-tube type evaporator is manufactured in
accordance with ASME standards. Each evaporator is
fully insulated and is equipped with water drain and
vent connections. Packaged units have heat tape and
plug-in heater protection to -20ºC as standard.
In order to avoid the unnecessary losses in the transport
process of goods, please complete the following check
when the arrival of the Unit:
when the unit arrival, please make sure the unit
nameplate is consistent with order.
check the appearance of arrival goods and packag-
ing materials have obvious damage or not.If there is
damage, notify the carrier immediately, and indicate
unit damaged status on carriers shipping records.
Before storage, please check whether the unit is
internal damage as soon as possible. deliver written
report to the carrier about the discovered internal
damage within 15 days from arrival of the goods.
If discover the inner damage, please stop to remove
the packing, also don't move away the damage the
parts from the scene, try to take photos of the related
damage. At the same time provide actively evidence
that damage is not occurred after the arrival of the
goods.
Notify carriers immediately about founded damage,
check the damage with combination of the carrier.
Inform TRANE local office at the same time.Please
DON’T repair or install any damaged units before
carriers check it.
The attachment check. Follow the delivery list, check
the accessories and detachable parts, including spec-
ifications and other documents, and other options
which are placed in electrical control cabinet.If found
any missing or damaged, please notify the carrier
and TRANE local offices.
Extended storage of the outdoor unit prior to installation
requires the following pre-cautionary measures:
Store the outdoor unit in a secure area.
At least every three months (quarterly), check the
pressure in the refrigerant circuits to verify that the
refrigerant charge is intact. If it is not, contact a qual-
ified service organization and the appropriate Trane
sales office.
RTAG-SVX001H-EN 11