Engineered for high-performance standing pilot systems

and modern blends like R448A and R449A

Durable Construction: Built to withstand the high-temperature environment of a furnace plenum for long-term reliability

F temperature range with an automatic reset

24L1801 is simply an older part numbering convention

Marvair 70281 Control Board 322838-754 Engineered for high-performance standing pilotThe Marvair 70281 Control Board is a specialized 24 volt OEM electronic module engineered for Marvair ComPac, Slimpac, and Minipac vertical wall mounted air conditioning systems. As a direct replacement for LPR AJ1710 1 and LPR AJ1710 2, this board manages critical system logic, including compressor sequencing, blower relay timing, and integrated safety circuits. It is designed to handle the high internal heat gains typical of telecommunication