System advantages
• Easy and simple installation ( plug & play )
• Reduced cost of operation due to high-effinciency heat exchanger ( 91 % recovery - YBVS-1 )
• Low noise level
• A by-pass integrated with the cross-flow heat exchanger allows for operation without heat recovery
• Self-supporting housing structure - without aluminium profiles
• Attractive and minimalistic style
• Ensured supply of a suitable volume of fresh and additionally cleaned air
• Ensured high quality air and good effect on the health of people staying rooms
• Automatic components supplied with Johnson Controls Factory Fitted Controls
The YBVS 2 , 3 , 4 unit has two axial-centrifugal fans . Supply fan removes contaminated warm air from the room and the exhaust fan , transports cold feed air .
Both streams are decontaminated on filters and pass through the cross-flow heat exchanger , where heat is exchanged between the streams . Additionally , fresh air , after passing through the cross-flow exchanger , is heated by an electrical or water heater to the required temperature of the supplied air . The unit has an integrated by-pass .
Functions :
• Night cooling of rooms during summer by bypassing the cross-flow exchanger , when the outdoor temperature is lower than the indoor temperature .
• Defrosting of the heat exchanger
YBVS 4
YBVS 3
YBVS 2
YBVS 1
Performance ( m 3 / h )
Unit size
Weight [ kg ]
Width B
Height H
Dimensions [ mm ] Airflow range [ m 3 / h ]
Length L
Flexible connections , dampers B x H min max
Max heat recovery [%]
1 85 550 600 1100 fi 160 400 400 91 2 180 750 850 1300 400 x 200 600 1200 72 3 240 800 1,000 1600 500 x 315 1000 2000 78 4 380 880 1,300 2200 630 x 400 2000 3800 70
YBVS 1
YBVS 2 , 3 , 4
YORK Air-Conditioning Products 135