Modulating HGR functionality - Johnson Controls - LIT-12011950 - Building automation software - Smart Equipment Controller - 5.0

Smart Equipment Controls Sequence of Operation Technical Bulletin

Johnson Controls
Product name
Smart Equipment Controller
Document type
Technical Bulletin
Document number
Revision date
Product status


Modulating hot gas reheat is only available for the following values of Unique Equipment Identifier:

  • 2 Stage Cir1 With Single Cir2

  • Tandem Cir1 With Single Cir2

  • Inverted Single Cir1 With Single Cir2

The following conditions must be true in order for HGR to start:

  • HGR-En = Yes

  • Heating not currently active

  • Heat to Cool Delay satisfied

  • OprOcc = Occupied or OprOcc = Unoccupied and HGRUnocc-En = Yes

  • Space temp is at least 1°F higher than the effective heating setpoint

  • Have a reliable return air temp and evap coil temp

  • Compressor associated with HGR must be available (not locked out or disabled)

  • There is an active cooling demand or SatisfiedDehum = True

HGR will be active as long as one of the following conditions is true:

  • Use DFS For Dehum = Yes and DFS = Alarm

  • Use DFS For Dehum = No and OprSH > HGRHum-Sp or HGRUnoccHum-SP depending on OprOcc