Lennox 21Z11 Smoke Detector kit 340155-7026 engineered to provide high-efficiency air-side

engineered to provide high-efficiency air-side economizing for Packaged Rooftop Units (RTUs)

Modular Design: The PopTop actuator connection allows for quick-release servicing without breaking pipe seals

or freeze protection circuits

This PS2 Series dual control features a low-pressure side ranging from 9"Hg to 102 psig with an adjustable 15 to 73 psig differential

Lennox 21Z11 Smoke Detector kit 340155-7026 engineered to provide high-efficiency air-sideThe Lennox 21Z11 is a professional grade duct smoke detector kit engineered for seamless integration with commercial and light commercial air handling units. This HVAC smoke detection kit is critical for life safety compliance, providing rapid identification of combustion particulates within the supply or return air streams. Designed specifically for Lennox equipment, the 21Z11 interfaces directly with HVAC safety circuits and system control boards to