techzone12
Mechanical
I am not sure if this is the right place to post this questions? But any way..
I have a large commerical office building with a fully auomated systems. The HVAC (BAS) system is controlled by DCS controllers. It has multiple AHU units, VAV units, Chillers, etc.
I am trying to come up with sequences to save energy. We are already using economizer mode (free fresh air), when the weather is permitting(based on enthalpy).
We are considering another addition to the sequence (for extra savings), and it goes as follows:
If the OA Temp is too low (< 40) then don't allow the VAV space setpoint to go above 72 degrees. If the OA temp is too high (> 70) then don't allow the space setpoints to go below 72 degrees. Of course we can use enthalpy instead of just temperature.
Any suggestions?
I have a large commerical office building with a fully auomated systems. The HVAC (BAS) system is controlled by DCS controllers. It has multiple AHU units, VAV units, Chillers, etc.
I am trying to come up with sequences to save energy. We are already using economizer mode (free fresh air), when the weather is permitting(based on enthalpy).
We are considering another addition to the sequence (for extra savings), and it goes as follows:
If the OA Temp is too low (< 40) then don't allow the VAV space setpoint to go above 72 degrees. If the OA temp is too high (> 70) then don't allow the space setpoints to go below 72 degrees. Of course we can use enthalpy instead of just temperature.
Any suggestions?
