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Pressure Control 10 - 150 psi Operating 10-22 psi Differential

Item #:PA404A1009 
Manufacturer Item: PA404A1009
Manufacturer: HONEYWELL
Resideo PA404A1009 Pressure Control 10 - 150 psi Operating 10 - 22 psi Differential
PA404A1009
Resideo PA404A is a pressure actuated high limit, safety control for steam heating boilers. It breaks an electrical circuit to shut down the burner if steam pressure rises above a safe level.
  • The PA404B is used with suspension-type unit heaters to make the fan circuit when a pressure rise indicates the presence of steam.
  • Each model contains an SPST MICRO SWITCH snap-acting switch. Sensitive pressure-actuated diaphragm expands or contracts with pressure variations, moving a lever mechanism which operates the snap switch.
  • A screw on top of the case allows set point adjustment without removing the cover. Differential is adjusted by means of a dial located inside the case

    PA404A1009

  • PA404A1009
    Pressure Control 10 - 150 psi Operating 10-22 psi Differential
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