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Key Benefits Precise Thermal Regulation: Features a fixed 175°F trip point to prevent over-temperature conditions in the heat exchanger
Unlike basic mechanical switches
physical footprint and terminal orientation matter
or a failing inducer
Reduced Service Callbacks: Eliminates common alignment issues that cause nuisance tripping of pressure switches or limit controls
Lennox 42W18 Coil 320734-701 Key Benefits Precise Thermal Regulation:The Lennox 42W18 is a heavy duty 24V solenoid coil designed specifically for the activation of reversing valves in heat pump systems. Engineered to meet precise OEM specifications, this coil generates the electromagnetic field necessary to shift the internal slide of the reversing valve, allowing the system to toggle between heating and cooling modes. This HVAC solenoid replacement is a common solution for technicians troubleshooting thermal
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