Two pipe reverse acting t-stat. Electric reheat on @ 13psi pressure independant normally open VAV. Damper actuator has a spring range of 8-13psi. Should the t-stat be calibrated for mid-spring range or the middle of control span 3-15psi?
In a pneumatic VAV with a spring range of 8-13# and elec heat set at 13#, What should the output pressure of the t-stat be at room temperature? Thanks.
