Lennox 33M12 Heat Exchanger Els PW 17895 The signal selection is managed

The signal selection is managed via internal DIP switches

Engineered as a high-precision damper linkage accessory

Designed for durability in high-heat environments

a solenoid valve should be installed upstream to ensure the bypass is only active during the cooling mode

but the capacitance (15 MFD) must remain the same for motor health

Lennox 33M12 Heat Exchanger Els PW 17895 The signal selection is managedThe Lennox 33M12 is a high performance aluminum heat exchanger designed specifically for Lennox G24 series furnace and WhisperHeat units. Engineered as a low heat replacement part, this component facilitates efficient thermal transfer between the combustion gases and the circulating air stream. The Lennox 33M12 heat exchanger is manufactured with heavy duty aluminized steel to resist thermal fatigue and ensure structural integrity under constant