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Safe Operation: Acts as a failsafe mechanism to shut down the system if exhaust gases are not properly drafted
Easy Field Identification: Color-coded blue with an included cartridge identification tag to prevent sizing errors during service calls
Utilizing the A-4110-604 filter element ensures the longevity of sensitive HVAC pneumatic components by delivering clean
this filter should be inspected monthly and replaced at least once per season
This unit is designed for vertical mounting on a standard 35mm DIN rail or a flat backplate
Lennox 43H89 Relay Els PW 17895 Safe Operation: Acts as aUpgrade your electrical control board with the Lennox 43H89 Relay, a professional grade DPDT 15A 24V coil relay designed for demanding HVACR environments. As a veteran preferred component for Lennox 43H8901 replacement, this double pole double throw relay provides reliable switching for indoor blower motors, electric heat sequencers, and cooling fan circuits. Integrated with a standard 24V AC coil, it handles up to 15 amps at 120 240V, supporting both
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