Johnson Controls A70HA-2 Temperature Control R-410A Burner degradation is often caused

Burner degradation is often caused by high humidity in the mechanical room

the switch will open and prevent the unit from heating

Proper installation of this gas burner tube involves verifying the screw-neck gasket integrity to prevent bypass leakage

the Bradford White 239-44723-01 Pressure Switch is a critical OEM component

For technicians maintaining Daikin or McQuay PTAC and AHU equipment

Johnson Controls A70HA-2 Temperature Control R-410A Burner degradation is often causedThe Johnson Controls A70HA 2 is a heavy duty single pole temperature control engineered for high limit cutout applications in both refrigeration and heating systems. Operating within a 35F to 80F temperature range, this controller features a critical open low action with a lockout manual reset mechanism, ensuring system safety by preventing automatic restarts after a limit trip. The unit is equipped with a 6 foot capillary for flexible sensing bulb