verify the assembly part number to ensure all required combustion air adjustments can be made

What is the maximum lift for this model

Is the differential adjustment fixed or adjustable

Can this replace a smaller tonnage valve

the 48Y Nema frame size and 5

Carrier HH18HA502 Limit Switch 323055-751 verify the assembly part numberThe Carrier HH18HA502 Limit Switch is a critical OEM high limit safety device designed for furnace temperature regulation in residential heating systems. Operating with a 140 180F temperature range, this component monitors the internal heat exchanger environment to prevent catastrophic failure and ensure safe operation. As an auto reset hi limit switch, it automatically restores the circuit once temperatures drop below the specified threshold,