81VCCX-IP Controller Technical Guide
APPENDIX C: BACNET GUIDE
Analog Inputs
VCCX-IP ANALOG INPUTS
Parameter Object Description Limits
SUB 2 Pressure 1 AI: 268 Current Subcooling Module 2 liquid line pressure 1 reading
SUB 2 Pressure 2 AI: 269 Subcooling Module 2 liquid line pressure 2 reading
SUB 2 Pressure 3 AI: 270 Subcooling Module 2 liquid line pressure 3 reading
SUB 2 Saturation 1 AI: 271 Subcooling Module 2 saturation temperature 1 reading
SUB 2 Saturation 2 AI: 272 Subcooling Module 2 saturation temperature 2 reading
SUB 2 Saturation 3 AI: 273 Subcooling Module 2 saturation temperature 3 reading
SUB 2 Line Temp 1 AI: 274 Subcooling Module 2 liquid line temperature 1 reading
SUB 2 Line Temp 2 AI: 275 Subcooling Module 2 liquid line temperature 2 reading
SUB 2 Line Temp 3 AI: 276 Subcooling Module 2 liquid line temperature 3 reading
Enter Water Pump AI: 277 Status of Entering Water Temperature
Return Plenum Pressure
Status
AI: 278 Current value of the Return Plenum Pressure Sensor
Return Plenum Control Signal AI: 279 Current Return Plenum Control Signal (Motorized Exhaust
Damper)
Mixed Air Temp AI: 280 Mixed air temperature sensor status. Used on units with
Direct Fire Heat.
Actual Heat Rise AI: 281 Di󰀨erence between supply air temperature and mixed air
temperature on units with Direct Fire Heat.
Calculated Heat Rise AI: 282 The heat rise limit determined by how open the Outside
Damper is.
Supply Air Relative Humidity AI: 283 If an EBUS Supply Air Sensor is being used this shows the
current supply air relative humidity reading.
Supply Air Dew Point AI: 284 If an EBUS Supply Air Sensor is being used this shows the
current calculated supply air dew point.
Space Dew Point AI: 285 Current value of the calculated Space Dew Point.
Return Dew Point AI: 286 Current value of the calculated Return Dew Point.
Objects labeled AI are read-only.
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