Always verify the voltage requirements on your system's data plate

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heat stress from improper venting

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Lennox 79J11 Freezestat 319852-301 Always verify the voltage requirementsThe Lennox 79J11 Freezestat (OEM Part # 79J1101) is a precision engineered low temperature cutout switch designed to protect evaporator coils and heat exchangers from debilitating freeze up conditions. As a normally closed (NC) safety device, this single pole snap action thermostat monitors refrigerant and air temperatures within Lennox packaged units and air handlers. It is calibrated to trigger an open circuit at 29F to interrupt the compressor or