protecting the integrity of the heat exchanger

This model is a Single Pole Single Throw (SPST) switch with an Open-Low configuration

or catastrophic bearing failure in air handling equipment

Can this be used for Propane (LP) conversions

It meticulously manages the burner's motor

Siemens DDC 550-430 Actuator 320788-703 protecting the integrity of theThe Siemens DDC 550 430 is a high performance BACnet VAV Actuator designed for DDC terminal box controller applications. Operating on the BACnet MS TP protocol, this integrated unit provides precise, pressure independent control of VAV zone level routines. With a 44 lb in (5 Nm) nominal torque and a 90 second run time at 60 Hz, the Siemens OpenAir GDE series ensures reliable damper positioning for HVAC building automation. The on board differential