S55770-T437 | Siemens | BAS Controllers

The S55770-T437 is a Siemens BACnet MS/TP communication operating voltage: AC 24 V Fan: 1, 2, 3-speed or DC 0...10 V* (automatic or manual) valve actuators: on/off, 3-position or DC 0...10 V* electric heater: on/off built-in temperature sensor 3 configurable inputs for external room/return air temperature, supply air temperature limitation, heating/cooling changeover, window contact, and occupancy sensor operating modes: comfort, standby (Economy), OFF, and mold protection room temperature control: based on built-in temperature sensor or room/return air temperature heating/cooling changeover: manual, or automatic via water temperature sensor or digital input supply air temperature limitation automatic valve exercise backlit LCD *Up to 2 DC 0…10 V control outputs are available i.e., the control of a DC fan, DC cooling valve, and DC heating valve is not possible application selectable: 2-pipe system 2-pipe system with electrical heater 4-pipe system.