[Question]

What is the difference between nviSetpoint and nciSetPts when using the VT7200, VT7300 or VT7600 with LON communication?

[Answer]

NciSetPts is a SCPT (Standard Configuration Property Type) that holds as separate properties the setpoints of the thermostats. Each setpoint (Occupied cool, Occupied heat, Unoccupied cool, Unoccupied heat, Stand-by cool, Stand-by heat) can be written or modified alone without affecting the other setpoints.

NviSetpoint is a SNVT (Standard Network Variable Type) that writes to the Occupied setpoints (cooling and heating) simultaneously by using the entered value and the deadband.

Example: If the deadband is 4°F and you set nviSetpoint to 75°F, the Occupied cool setpoint becomes 77°F ( 75 + 4/2 ) and the occupied heat setpoint becomes 74°F ( 75 - 4/2 ).