Ensure your controller’s input impedance matches the transmitter specifications to prevent signal attenuation

minimizing nuisance shutdowns

The Siemens DDC R540-110N is a high-performance Terminal Equipment Controller (TEC) engineered for precise Direct Digital Control of HVAC terminal units

80" WC / -0

Integrated Blower Housing: Pre-assembled venter motor and housing ensures factory-spec airflow and static pressure

Greenheck 873440 Power Pack 318423-701 Ensure your controller’s input impedanceThe Greenheck 873440 Power Pack is a precision engineered OEM replacement part designed specifically for Greenheck SP B series centrifugal ceiling exhaust fans. Tailored for the SP B110 model, this 115V fan motor and blower assembly serves as a comprehensive drop in solution for restoring system static pressure and airflow CFM. By utilizing a pre assembled power pack, contractors can bypass the labor intensive process of individual motor or wheel