Chillers and Heat Pumps | Water-Cooled Chillers and Heat Pumps
YVWH main features
Variable Vi
Premium efficiency water-cooled screw chillers from YORK ® control the refrigerant volume ratio ( Vi ) to match the pressure ratio , which helps maintain optimum compressor efficiency . YORK ® was the first manufacturer to offer this technology , and our step-less control with perfectly matched compressor and system Vi can provide up to 10 % SEER performance improvement ( average 6 % across the range ) vs fixed Vi systems .
Performance Improvement by Variable Vi
10.5
10
9.5
9
Variable Vi Offers Average up to 10 %
Improvement vs Fixed Vi compressor
8.5
8 300 400 500 600 700 800 900 1000 1100 1200
Capacity ( kW )
Optimized Compressor
Screw compressors from YORK ® use advanced technology to deliver higher efficiences . Optimized variable volume ratio compressor design matches compression to the load to avoid over-compression and wasted energy . A special rotor design provides a tight seal and high compression efficiency . A compact design with simple assembly provides easier maintenance . Together , these technological enhancements increase efficiency while reducing noise and vibration .
Reduced Sound Pressure Levels ( 1m )
A unique , patented dampening structure in the YORK ® screw compressor is combined with an integrated oil separator to reduce noise . These technologies result in operating sound levels up to 17 dBA quiter than traditional chillers while maintaining peak efficiency .
Normal Conversation 60 dBA
YORK ® Screw Chiller 71.4 dBA
Traditional Chiller 88 dBA
Jet Aircraft 140 dBA dBA
Magnetic Bearing Chiller 70 dBA
Phone Ringtone 80 dBA
Blender 90 dBA
68 YORK Air-Conditioning Products