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Chilled Water Differential Pressure Setpoint
Target differential pressure across the chilled water loop, used to control chilled water pump speed. Ensures adequate flow to all coils.
Brick
Chilled_Water_Differential_Pressure_Setpoint
Category
setpoints
Typical Range
-
Object Type
-
Haystack
Tags
chilledMarkerwaterMarkerdifferentialMarkerpressureMarkerspMarkerpointMarker
Kind
Number
Point Function
setpoint
Haystack Unit
psi
Source Units
PSI / ft H₂O / kPa
States
-
Aliases
Common
Common Misspellings
chilled-water-diferential-pressure-sp
Notes
- Controls variable speed pump operation to maintain adequate pressure across the most remote coil
- ASHRAE Guideline 36 recommends differential pressure reset based on valve positions
- Sensor should be located at the most hydraulically remote coil, not at the pump discharge
- Typical range is 5-25 PSI depending on system size