By integrating a dedicated BACnet interface

a plenum-rated (CMP/CL2P) alternative should be used

Can I use this 50VA unit to replace a 40VA transformer

Installing this on a Natural Gas water heater will lead to improper combustion and hazardous operating conditions

Can I use a generic seal instead of the OEM 383600

Lennox 12W49 Pressure Switch 320734-701 By integrating a dedicated BACnetThe Lennox 12W49 Pressure Switch (Model R20558702) is a critical OEM safety component engineered for precise combustion air monitoring in Lennox gas furnaces. This SPST pressure switch is factory calibrated to actuate at 1. 35" W. C., ensuring the inducer motor generates sufficient draft for safe venting before the ignition sequence begins. Designed for professional grade reliability, it features a standardized 1 4" barb connection for secure