Hartland Controls CON-3/24/40 Contactor 321894-706 Technicians should replace the S1-2805-4711

Technicians should replace the S1-2805-4711 wire harness if there is evidence of oxidation at the pins

allowing two boards to synchronize blower operation

utilizing this precise Mitsubishi Electric replacement part is the only way to ensure the system meets original factory specifications for interference mitigation and operational reliability

In a typical 4-wire setup

replacing a fouled or cracked ignition electrode with this genuine Reznor 209339 part restores factory-spec performance and flame rectification accuracy

Hartland Controls CON-3/24/40 Contactor 321894-706 Technicians should replace the S1-2805-4711The Hartland Controls CON 3 24 40 is a heavy duty 3 pole definite purpose contactor engineered for demanding commercial and industrial HVACR applications. Designed to manage high current loads in air conditioner condensers and compressor motor circuits, this contactor features a 24VAC 50 60Hz coil and is rated for 40 FLA (Full Load Amps) and 50A resistive loads. The silver cadmium oxide contacts provide superior conductivity and arc resistance,