Lennox 42W18 Coil 320734-701 The NEMA Class II open

The NEMA Class II open construction ensures low heat rise and efficient operation

Reduced Service Callbacks: Eliminates common alignment issues that cause nuisance tripping of pressure switches or limit controls

or a failing inducer

With a 40-micron filtration rating and a 680 PSI maximum working pressure

physical footprint and terminal orientation matter

Lennox 42W18 Coil 320734-701 The NEMA Class II openThe 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