Non-modulating power exhaust - Johnson Controls - LIT-12011950 - Building automation software - Smart Equipment Controller - 5.0

Smart Equipment Controls Sequence of Operation Technical Bulletin

Product name
Smart Equipment Controller
Document type
Technical Bulletin
Document number
LIT-12011950
Version
5.0
Revision date
2024-06-06
Product status
Active

Setpoints

The setpoints and related data include the following items:

  • Economizer enable (Econ-En) ON
  • Power exhaust fan type (ExFType) non-modulating
  • Econo damper position fan on (EconDmpPosFanOn)
  • Econo damper position fan off (EconDmpPosFanOff)

Inputs

No inputs are present for non-modulating power exhaust.

Outputs

The outputs include the following items:

  • 2 to 10 VDC from ECON
  • 24 VAC from EX-FAN to energize exhaust fan

Operation

The control compares the economizer output to the economizer damper position fan on and off.

Next the control energizes the exhaust fan when the economizer output is greater than the economizer damper position fan on setpoint.

Finally, the control de-energizes the exhaust fan when the economizer output is less than the economizer damper position fan off setpoint.