Can I use this for both suction and liquid line connections

it is a functional component of the filtration system

reducing nuisance lockouts and emergency service calls

It should not be used in non-airflow applications

As a veteran-verified Lennox replacement part

National Comfort Products 14208319-P Control Board R-22 Can I use this forThe National Comfort Products 14208319 P Control Board is the essential OEM DSI control display engineered for precise management of Direct Spark Ignition sequences within specialized thru the wall heating and cooling units. As the direct replacement for 14208319 KIT, this integrated furnace control streamlines field service by ensuring out of the box compatibility with existing wiring harnesses and mounting footprints. The 14208319 P control module