This unit provides 2x SPDT auxiliary switch functionality

Proper installation ensures the furnace operates within designed thermal parameters

including Pennant 200-400 models

Reliable Actuation: Maintains consistent pull-in and holding voltage to prevent contactor buzzing or intermittent system operation

visible corrosion on the probe

Fulton Boiler 4-50-SP0401 Maintenance Kit 319852-301 This unit provides 2x SPDTThe Fulton Boiler 4 50 SP0401 Maintenance Kit is a comprehensive, factory specified assembly engineered specifically for the routine upkeep of high efficiency Fulton Pulse combustion hydronic heating boilers. For any veteran technician, maintaining peak combustion efficiency depends on the integrity of the boiler gaskets and sealing components within this kit. This standard spare parts package includes high quality replacement electrodes, precision