checking the furnace grounding and flame signal in microamps is recommended during installation

the HK61EA006 is the current factory-authorized successor for the HK61EA002 series

it's built to handle both chilled water and hot water control valve applications up to 250°F (120°C)

eliminating the need for field-modified brackets

Designed for "through-hole" mounting

Carrier EF680019 Gas Valve 321894-706 checking the furnace grounding andThe Carrier EF680019 Gas Valve is a critical OEM replacement component engineered for high performance gas regulation in Carrier, Bryant, and Payne furnaces. This single stage, 24V gas valve is factory calibrated to a 3. 5" WC (Water Column) manifold pressure, ensuring precise fuel delivery for optimal combustion efficiency. Designed with a 1 2" x 3 4" NPT connection configuration, it serves as a direct drop in replacement for aging or failed HVAC gas