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The Lennox 31J91 LP Pilot Orifice is a precision-engineered liquid propane (LP) conversion component designed specifically for residential and commercial gas heating systems
protecting the burner assembly and improving energy efficiency
5mm profile ensures all snap-on devices seat securely without vibration or shifting
this adapter maintains the structural integrity of the valve actuator while protecting internal wiring from mechanical stress and debris
Carrier HH18HA280 Defrost Stat The Lennox 31J91 LP PilotThe Carrier HH18HA280 is a specialized L80 50F defrost thermostat designed to regulate the defrost cycle in residential and light commercial heat pump systems. This OEM Carrier part features a fixed set point, closing on temperature drop at 50F and opening at 80F to ensure efficient coil clearing while preventing excessive heat buildup. As a critical defrost sensor replacement, it prevents ice accumulation on the outdoor coil, maintaining optimal