Thermostat inputs - 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

Setpoints and related data

The setpoints and related data include the following item:

  • Thermostat only control enable (Tstat-Only) is set to Yes.
Note: Tstat-Only set to No means all temperature sensor inputs are active and usable, but Tstat inputs still have priority.


The inputs include the following items:

  • 24 VAC to limit switch safety terminal LIMIT, LIM2, LIM3
  • 24 VAC to gas valve verification terminal MV, GV2, GV3
  • 24 VAC to high/low pressure switches HPS1 through HPS4 and LPS1 through LPS4
  • Evaporator coil temperature sensor EC1, EC2, EC3, and EC4
  • 24 VAC to thermostat terminals Y1 through Y4
  • 24 VAC to thermostat terminals W1 through W3
  • Operational outdoor air temperature (OprOAT) from the sensor to the OAT terminal or a communicated value


The outputs include the following items:

  • 24 VAC from C1, C2, C3, and C4 compressor outputs
  • 24 VAC from CN-Fan and CF2 condenser fan outputs
  • 24 VAC from H1, H2, and H3 heat outputs
  • 24 VAC from FAN