Room thermostat for 2-pipe fan coils or DX-type equipment, return air temperature sensor

Output for an on / off valve actuator or compressor

Outputs for a 3-speed fan

Control depending on the room or return air temperature (with sensor QAH11.1)

2-position control

Sensor input either for automatic heating / cooling 
changeover or return air temperature (with sensor QAH11.1)

Automatic or manual three-speed fan control

Operating modes: normal, energy-saving and standby

Operating mode changeover input for remote control