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the S1-401318 is a direct
and LB-74816B without the need for field modifications
Key Benefits Dual Circuit Monitoring: Enables simultaneous tracking of two separate refrigerant circuits for precise fan speed modulation
System Stability: Prevents "hunting" and erratic valve behavior by establishing the necessary backpressure for one-pipe bleed controllers
Lennox 22H56 Detector Kit 321894-709 the S1-401318 is a directThis Lennox 22H56 Smoke Detector Kit is a critical safety component designed for seamless integration with commercial Lennox rooftop units, including high performance models in the Model L, Enlight, and Raider series. Engineered for reliability in demanding environments, this photoelectric smoke detector provides rapid response by sensing combustion particles within the supply and return air streams. As a veteran grade OEM HVAC replacement part, it