high-temperature control cabinets

Constructed from heavy-gauge steel with a durable black powder-coat finish

this bimetal furnace switch manages both blower motor activation and safety high-limit cutouts

mitigating the risk of premature motor failure and HVAC system short-cycling

keep in mind you may need to adjust your pressures—typically 4:1 Oxygen-to-Fuel ratio for propane—to maintain the proper neutral flame

Carrier LH33CZ003 Ignition Control 320735-701 high-temperature control cabinetsThe Carrier LH33CZ003 Ignition Control is a critical OEM replacement component designed for precise sequence management in Carrier, Bryant, and Payne furnaces. As a veteran grade electronic ignition module, this part manages the interface between the thermostat and the burner assembly, overseeing the hot surface igniter (HSI), inducer motor, and gas valve operations. This DSI ignition control (Direct Spark Ignition) ensures safe and reliable furnace