| Features and Benefits
TYPICAL PART LOAD PERFORMANCE - 130-400 TONS
70-125 TON RTAA COMPRESSOR LOADING
STEP = STEP UNLOADER VALVE
VARIABLE = VARIABLE UNLOADER VALVE
Optimum Efficiencies
Unsurpassed Full Load Efficiency
Precise Rotor Tip Clearances
Higher energy efficiency in a helical rotary compressor is
obtained by reducing the rotor tip clearances. This reduces the leakage between high and
low pressure cavities during compression. Precise rotor tip clearance is achieved with the
latest manufacturing and machining technology. Trane is the first helical rotary
compressor manufacturer to electronically check compressor parts machining accuracy as
part of the standard production process.
Optimized Compressor Parts Profiles
Rotor and slide valves are unique designs, optimised for the air
conditioning application. The rotors are designed for the pressure ranges in the air
conditioning application. The unloader valve has a unique profile that resulted from
computer performance modeling in typical part-load situations.
Advanced Heat Transfer Surfaces
Condenser and evaporator tubes use the latest heat transfer
technology for increased efficiency.
Great Part Load Efficiency With Trane
Helirotor™ Compressors And Electronic Expansion Valve
Trane Helirotor Compressor Means Superior Part
Load Performance
The air-cooled Series R chiller has great part-load
performance. The slide valve on the "intermediate compressors" has a Trane
designed profile that resulted from computer performance modeling in typical part-load
situations. The combination patented unloading system on the "general purpose"
compressor utilizes the variable unloading function similar to that of the slide
valve. The "general purpose" valve also uses a step unloader valve
which is a single unloading step to achieve the minimum unloading point of the compressor.
The result of both of these designs is optimized part-load performance far superior to
single reciprocating compressors. |
