Trane Stealth Air-cooled Chillers Brochure

Trane® Stealth™ Air-cooled Chillers

150 – 300 tons

An unbeatable combination of high energy
efficiency and quiet performance.

An environment offering quiet, dependable

cooling can provide many benefits. Inside

the building, students can enjoy improved

concentration and test scores. Employees

can experience higher levels of morale

and productivity. And critical applications

can function reliably. Outside, quietly

operating cooling can help your building

to be a good neighbor.

Trane® Stealth™ air-cooled chillers deliver an industry-

leading combination of part-load and full-load efficiencies,

while offering multiple sound reduction options for noise-

sensitive installations. No other air-cooled chiller delivers

this kind of efficiency or acoustic performance … making

the Stealth chiller the perfect solution for your building.

The science behind the performance:

™

AdaptiSpeed

AdaptiSpeed technology delivers highly efficient, reliable

performance through the integration of:

• An all-new, direct-drive, specific-speed screw compressor

• Variable-speed, permanent magnet motors, powering the
compressor and condenser fans

• The third-generation Adaptive Frequency™ drive, AFD3

No other air-cooled chiller can bring you the unique efficiency

and reliability benefits of a Stealth chiller.

2

2

technology

Industry-leading efficiency with no need
to compromise

Other air-cooled chillers can deliver good part-load efficiency—but often at

the cost of full-load efficiency. Stealth chillers use advanced technologies

to deliver an unbeatable combination of efficiency under all operating

conditions to lower utility bills and save money.

• Highest part-load efficiency—Up to 20 IPLV rating, driving lower

overall electrical consumption charges (kWh).

• Highest full-load efficiency—Up to 12.1 EER, minimizing the electrical

infrastructure required as well as the impact of demand-based utility costs

during periods of peak operation.

Innovation at work:
Advanced technology driving lower

The increased efficiency and reduced
refrigerant charge of a Stealth chiller can
help earn multiple LEED® points for your
building and qualify for energy rebates
and incentives offered by many utility
companies across the country.

energy consumption

Building on over 40 years of experience designing air-cooled chillers, Trane engineers brought innovation and knowledge to every

component used in the next-generation Stealth chiller. The result: reduced energy consumption, improved system flexibility and

performance, and the lowest sound levels—all while delivering improved reliability and lower maintenance requirements.

™

• The Trane third-generation Adaptive Frequency

AFD3, offers a part-load efficiency improvement of

more than 40 percent when compared to previous

constant-speed chiller designs. Designed to last the life of

the chiller, the AFD3 is glycol-cooled and contains durable

film capacitors.

• New specific-speed screw compressor technology

delivers peak efficiency under all operating conditions.

Compared to the previous compressor, this updated

design—which is optimized for variable-speed operation—

yields up to a 10 percent improvement in compressor

efficiency.

drive,

• The compressor’s permanent magnet motor design is up to

4 percent more efficient than conventional induction motors.

• Permanent magnet, variable-speed motors are also used in

the Stealth chiller’s condenser fans. These motors offer an

additional efficiency improvement of 2 percent or more

at full-load operation and 5 percent or more at part-

load operation.

• New Compact, High-performance, Integrated, Low-charge

(CHIL) evaporator technology design optimizes refrigerant

flow for improved efficiency and better cooling performance,

while using up to 40 percent less refrigerant than traditional

flooded designs.

3