Conventional enthalpy control of economizers often misses a significant energy conservation opportunity. The control circuit suggested in this video maintains the same occupied space temperature while reducing the percentage operating time of mechanical cooling. By increasing the the off time while maintaining identical compressor run time, the system achieves meaningful energy savings without compromising occupant comfort.
The Retrofit That Made Things Worse
Induction units were already not winning any efficiency awards. Then came the BAS upgrades — and two mistakes that made a flawed system perform even worse. We found them in the field. This is what we saw.