Primary air temperature and pressure sensors determine system operating mode to ensure proper operation during communication failures.
Air source leaving‑air temperature protection reduces the risk of heating or cooling lockouts caused by unacceptable discharge temperatures.
Control logic complies with ASHRAE 62.1 ventilation requirements.

Supports stand‑alone or linked VVT system operation.
Includes Carrier airside linkage capability for coordinated system control.
Supports foreign‑language ASCII character sets.

Integrated thermistor‑type duct temperature sensor
Integrated pressure sensor

Functions as a Carrier communicating network device
High‑speed communications network operating at 38.4K baud