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5-inch mounting ring
When the outdoor coil on a heat pump or cooling unit starts pulling high head pressures or loses efficiency due to ice bridging
Can I use this to replace a manual reset switch
ensuring a tight tolerance connection that prevents mechanical hysteresis
System Efficiency: Restores the airtight seal of the furnace venting system
Lennox 78L19 Expansion Valve R-410A 5-inch mounting ringProper refrigerant metering is the backbone of any reliable HVACR system, and the Lennox 78L19 Expansion Valve is a critical component for maintaining precise superheat. Designed for high performance residential and light commercial equipment, this Thermostatic Expansion Valve (TXV) is chemically compatible with both R 410A and R 22 systems. The 78L19, which is identical to 78L1901, features a durable brass body with threaded connections, making it a