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Duct Static Pressure Setpoint
Target static pressure in the supply duct. Primary setpoint for supply fan speed control in VAV systems.
Brick
Supply_Air_Static_Pressure_Setpoint
Category
setpoints
Typical Range
-
Object Type
-
Haystack
Tags
dischargeMarkerductMarkerstaticMarkerpressureMarkerspMarkerpointMarker
Kind
Number
Point Function
setpoint
Haystack Unit
inH₂O
Source Units
inWC / Pa
States
-
Aliases
Common
Common Misspellings
duct-stactic-pressure-sp
Notes
- Typical initial setpoint is 1.0-2.0 inWC for medium-pressure ductwork
- ASHRAE Guideline 36 recommends static pressure reset — lower setpoint when VAV boxes are satisfied, raise when boxes are starved
- Static pressure reset can save 20-40% of fan energy