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meaning it senses evaporator pressure at the valve outlet
Automatic Reset Functionality: Features a self-resetting mechanism that restores circuit continuity once temperatures drop below the 300°F cutout
Is this a manual or automatic reset device
measure resistance across the coil
Lennox 88K90 Pressure Switch Els PW 17895 meaning it senses evaporator pressureThe Lennox 88K90 Pressure Switch is a high precision, OEM furnace safety component factory calibrated for induction monitoring in residential and light commercial heating systems. This 0. 47" WC pressure switch utilizes a single pole single throw (SPST), normally open contact configuration, ensuring the combustion process only initiates when proper draft is established. Designed for universal compatibility with older systems, the 88K90 replaces part
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