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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
If the switch remains open
ideal for HVAC coils and bypass loops
and one normally closed (NC) contact
When troubleshooting irregular flame patterns or ignition lockouts
including commercial boilers
Lennox 18J74 Pressure Switch Els PW 17895 If the switch remains openThe Lennox 18J74 Pressure Switch is a high precision low ambient pressure switch engineered to regulate head pressure by cycling the outdoor fan motor during cooling cycles. Designed specifically for HVAC professionals, this OEM replacement part ensures your system maintains consistent evaporating temperatures, effectively preventing evaporator coil icing and protecting the compressor from liquid slugging. With an open temperature of 150F and a close
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