Heat Recovery Wheel

[tomy]

Hello,

Have an office building using chiller, AHU and HRW for PAU. What is the most important data of *

Example: what are different between 02 below models, which one is better.

Outdoor air: Leaving Temp. (Db/Wb) ºC : 27.0/19.0 Efficiency %77

Outdoor air: Leaving Temp. (Db/Wb) ºC : 27.9/21.7 Efficiency %78.2


Many thanks

[silvertop]

The first is the most efficient - the lower the Wb the better the heat transfer

[tomy]

Thank you very much for you reply, but what about the * the software tell me that the second one has a higher efficiency than the first one. *