OEM Compatibility: Designed for use with Williams-brand gas valves for a seamless mechanical fit

this unit provides the precise calibration required for demanding boiler environments

it delivers a cooling capacity of 5

Key Benefits System Protection: Precisely monitors suction pressure to prevent compressor operation during low-refrigerant or restricted airflow scenarios

which will not facilitate proper control board operation

Laars Heating Systems R2080201 Kit 321894-708 OEM Compatibility: Designed for useThe Laars Heating Systems R2080201 Kit is a field proven temperature control conversion kit engineered to transition existing FX05 controllers over to the more robust Watlow series. As a critical boiler control board upgrade, this kit resolves the obsolescence of the Laars 2400 439 part, ensuring that legacy hydronic systems maintain precise thermal regulation. For technicians managing commercial boiler maintenance, this FX05 to Watlow conversion