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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Designed to meet ASME design requirements
Using an incorrect rating can cause overheating or failure to start
If your interface is blank but the board has power
Industrial Construction: High-grade cast iron provides superior heat dissipation and resists groove wear
What symptoms indicate a rebuild is necessary
Lennox 12W49 Pressure Switch 320788-703 Designed to meet ASME designThe 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
US$ 36.49
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