Lennox 72L27 Thermostat 321042-401 this OEM component ensures exact

this OEM component ensures exact mechanical alignment and electrical continuity within Rheem HVAC systems

making it a flexible choice for various drive configurations

while the built-in valve position indication allows for immediate visual verification of stem travel and seating

Key Benefits Multi-Voltage Versatility: Field-adjustable selector switch supports 120

this unit is engineered for right-angle mounting

Lennox 72L27 Thermostat 321042-401 this OEM component ensures exactThe Lennox 72L27 Defrost Thermostat is a critical safety and performance component designed for precise temperature regulation in Lennox heat pump systems. This heavy duty bimetal defrost sensor functions by monitoring coil temperatures and initiating the defrost cycle once frost accumulation reaches specific thresholds, typically closing at 42F and opening at 75F. Engineered for longevity in harsh outdoor environments, the 72L27 ensures the outdoor