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In the event of a sudden pressure drop caused by glass breakage
The Maxitrol M520B-3/4 is a specialized 3/4" NPT Modulating Gas Valve engineered for technical precision in negative pressure (pull-through) and indirect fired atmospheric burner applications
Common Questions: When is a Demand Cooling Valve required
The 7/8" sweat (ODF) solid copper connections allow for straightforward brazing
Lennox 69W56 Pressure Switch 326010-701 In the event of aThe Lennox 69W56 Pressure Switch is a critical dual stage pressure switch engineered for precision airflow monitoring in Lennox high efficiency gas furnaces. Built to strictly meet OEM specifications (102737 04), this 2 stage furnace pressure switch features factory calibrated set points of 0. 60" W. C. for high stage and 0. 25" W. C. for low stage. These precise thresholds ensure that the inducer motor is moving sufficient combustion air before the
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