18
BAS-SVX48H-EN
Table 6. Inputs
Function
Input source
Related information
24 Vac Power
Terminals: Ground, 24 Vac
For more details on power wiring requirements, refer to
“Resources,” p. 67.
Space Temperature Local Terminals: AI1, Ground AI1; Space Temperature Local
Discharge Air Temperature
Terminals: AI4
AI4; Discharge Air Temperature Sensor
Entering Water Temperature
(Required Only for Units with Auto-
changeover)
Terminal: AI5 or Communicated
AI5; Entering Water Temperature
Outdoor Air Temperature Local
(Required Only for Economizing)
Terminals: UI2 or Communicated
UI2; Outdoor Air Temperature
CO
2
Sensor (Required Only for CO
2
-
based Demand Controlled
Ventilation)
CO
2
and an Economizer Damper are
Required for Demand Control
Ventilation Operation.
Demand Control Ventilation is
Disabled When:
• The Economizer Damper is not
Installed.
• No CO
2
Sensor or Value does Not
Exist
• The Mode of Operation is
Unoccupied, Pre-cool, Morning
Warm-up, or Anytime When the
Fan is OFF.
Terminals: UI1 or Communicated
UI1; Relative Humidity or CO
2
Sensor
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