Lennox 72W34 Gas Valve 321702-401 When looking at the shaft

When looking at the shaft end of the motor

ensuring the heater elements are only energized when the tank is sufficiently filled

This ECM blower motor (Electronically Commutated Motor) features a 16-pin communication input

It is designed to be field-installed onto existing shielded cables or sensor leads during repair or replacement of faulty connectors

and the Siemens 599-02037 Powermite MT Series valve delivers both

Lennox 72W34 Gas Valve 321702-401 When looking at the shaftLennox 72W34 is a modulating natural gas valve designed for use in compatible Lennox heating systems, including furnaces and commercial HVAC equipment. It regulates gas flow to the burner assembly, allowing precise modulation based on heating demand for stable combustion and efficient system performance. This modulating gas valve is commonly used as a replacement component when the original valve becomes faulty, leading to improper flame control,