and 49TJ series rooftop units

8°F accuracy

centralizing system expansion

and WG series wall-mount AC units

this printed circuit board (PCB) regulates variable DC voltages and interprets sensor data to optimize compressor frequency and fan speeds

ASCO K3A671V Valve 321894-708 and 49TJ series rooftop unitsThe ASCO K3A671V is a high performance 2 way normally closed gas solenoid valve engineered for precision control in commercial and industrial combustion systems. Supporting a 1 1 4" NPT pipe size and a robust 1,730,000 BTU hr capacity, this 24V safety shutoff valve is designed for the positive closure of fuel lines in boilers, furnaces, and ovens. Featuring a die cast aluminum body and a resilient NBR seal, it provides dependable service under a 5 PSI