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preventing mechanical binding
The hermetic design and integrated sensing bulb allow for consistent performance in various mounting orientations
Can I use an aftermarket board instead of the CESO130028-00
the L62GB-3 features a thermoelectric power unit that triggers the interlock
Lennox 12W49 Pressure Switch L99H008 preventing mechanical bindingThe 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
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