Modbus communications
For heating and/or cooling applications
2 or 3-position control outputs
Output for 1-speed or 3-speed fan
2 multifunctional inputs for keycard contact, external room / return air temperature (QAH11.1, QAA32), heat / cool changeover, operation mode changeover, window contact on/off, dewpoint monitor, electrical heater enabled, fault contact
No external input for RDF302.B
Operating modes: Comfort, Economy and Protection
Automatic or manual heating/cooling changeover
Adjustable commissioning and control parameters
Minimum and maximum setpoint limitation
Backlit display