ensure the internal jumper is correctly positioned to match the input impedance requirements of the circuit

What are the exact dimensions for clearance checks

This normally closed gas valve features a cast iron body and a standard port flow capacity (Cv 127)

Does this valve require a separate sensing bulb

Lennox 43K69 Ignition Cable 319848-301 ensure the internal jumper isWhen you are dealing with a furnace that refuses to kick over, a compromised Lennox 43K69 Ignition Cable is often the silent culprit. This OEM Lennox ignition wire, also identified by model 65207600, is engineered specifically for high voltage spark transmission from the ignition control module to the spark electrode. As a veteran technician, you know that brittle or cracked insulation on a secondary lead results in voltage leaks and "ghost" ignition