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making it a staple for HVAC automation and pneumatic control systems that require consistent
and thermopile relative to the main burner port
Built to handle a working pressure of 150 PSI
minimizing nuisance tripping while providing robust thermal-magnetic response times essential for protecting heavy-duty motors and auxiliary components
The unit’s compression fittings facilitate secure 1/4" OD tubing connections
Lennox 12L21 Pressure Switch 320735-701 making it a staple forAs a seasoned technician, you know that safeguarding the compressor from low side pressure drops is critical for system longevity. The Lennox 12L21 Pressure Switch is an OEM low pressure safety switch meticulously calibrated to monitor refrigerant levels and prevent vacuum conditions or evaporator freeze ups. Designed for integration into Lennox HVAC systems, including high efficiency condensing units and heat pumps, this Normally Open (NO) switch
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