System Sensor D2 Smoke Detector 30067439-890 This HVAC blower relay is

This HVAC blower relay is critical for maintaining proper sequence of operation

The standard Model 24 (45-240) includes the standard EL1214 probe

and R407C refrigerants

Designed to provide critical over-pressure protection

Common Technical Questions Is the Trane CNT3781 polarity sensitive

System Sensor D2 Smoke Detector 30067439-890 This HVAC blower relay isFor contractors and fire safety professionals, the System Sensor D2 remains a standard for reliable detection within air handling systems. This 2 Wire InnovairFlex Photoelectric Low Flow Duct Smoke Detector is engineered to operate across a broad air duct velocity range of 100 to 4,000 feet per minute, making it suitable for both high speed supply ducts and low velocity return air applications. Built on a modular platform, the InnovairFlex D2 features