Lennox 78H11 Thermostat 319852-301 It maintains a pressure rating

It maintains a pressure rating of 0-110 PSI for #2 fuel oil (60 SSU) and #4 fuel oil (300 SSU)

Contractors should inspect existing thermal limits and secondary HVAC replacement parts for signs of scorching or fatigue during the swap

Key Benefits for Contractors Full Refrigerant Compatibility: Optimized for use with POE

Can this unit replace a single-phase compressor

Lennox 78H11 Thermostat 319852-301 It maintains a pressure ratingAs a seasoned technician, you know that a frozen outdoor coil is a quick way to kill system efficiency and stress the compressor. The Lennox 78H11 is a critical heat pump defrost thermostat (L70 35F) designed specifically to regulate the defrost cycle in Lennox heat pump applications. This OEM Lennox replacement part features a fixed temperature range, initiating the defrost sequence when the liquid line or coil temperature drops to 35F and