Description
Replacement is recommended if you notice increased vibration
ensuring configurations remain intact even after power loss
offering superior heat dissipation and longer service life compared to generic alternatives
For industrial maintenance teams
OEM-Grade Precision: Ensures 100% compatibility with Lennox heat pumps and air handling units
Siemens Building Technology RDG400 Stat 328140-751 Replacement is recommended if youThe Siemens RDG400 is a versatile room temperature controller designed for 24V AC installations requiring precise 0 10V DC modulation or 3 point floating control. Engineered for demanding HVAC applications, this unit excels in managing VAV systems, small reheaters, and cooling equipment. Its multi functional architecture allows for seamless integration into Building Automation Systems (BAS) using PI control logic to minimize temperature drift. The
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy

























