Key Benefits: Universal Compatibility: Direct OEM replacement for various legacy McQuay and Daikin part numbers

They are interchangeable within the Lennox parts catalog for the same furnace models

ensuring the main burner cycles smoothly without ignition delays or lockout errors

Built on a compact open frame design

the 1184594 is a drop-in replacement specifically designed to match the pin configurations and terminal logic of the legacy 1183384 board

Hydrotherm 02-1554 Gas Valve 30067439-890 Key Benefits: Universal Compatibility: DirectThe Hydrotherm 02 1554 Gas Valve is a critical combustion control component engineered for high performance natural gas hydronic systems. Designed specifically for Hydrotherm MR and VGA boilers, this valve ensures precise fuel regulation and consistent manifold pressure. Operating on a standard 24V AC circuit, it maintains a factory calibrated 3. 5" WC (Water Column) output, which is essential for stable flame characteristics and efficient heat