Is this kit compatible with two-stage valves

The HK02ZB022 is an automatic reset switch

making it suitable for chilled water

preventing the fouling typical in standard configurations

offering flexible installation for various manifold configurations

Lennox 73K21 Limit Switch 320735-701 Is this kit compatible withThe Lennox 73K21 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a Lennox replacement part, this 145 175F AUTO limit switch monitors discharge air temperatures to prevent heat exchanger overheating. It operates on a normally closed circuit that opens if temperatures exceed the 175F threshold, effectively cutting power to the gas valve or ignition