a standard ETX series tank should be used

the S1A is specifically designed for non-spring return actuators

this component is rated for 40 FLA (Full Load Amps)

Engineered for 240V 60Hz AC applications

provided the model number matches the manufacturer's parts list

Lennox 78L42 Gas Valve Freon a standard ETX series tankThe Lennox 78L42 is a high performance 24V 2 stage gas valve engineered for precision fuel regulation in residential and light commercial forced air systems. This genuine OEM Lennox replacement part, often cross referenced as 78L4201, is manufactured by Honeywell (Model VR8205Q2662) to ensure seamless integration with Lennox G32 and GHR32 series furnaces. Featuring a 1 2" NPT inlet and outlet, this natural gas valve supports dual stage heating,