Johnson Controls A-4412-1 Air Dryer 30067439-890 the burners lighting and then

the burners lighting and then immediately extinguishing (flame sense failure)

and relay centers

Excess length should be carefully coiled away from electrical terminals and sharp edges to prevent damage to the internal fluid

this unit stays intact during brief startup surges typical of motors and transformers

this OEM-grade replacement part provides the precise gas flow control and durability required for heavy-duty thermal cycles

Johnson Controls A-4412-1 Air Dryer 30067439-890 the burners lighting and thenThe Johnson Controls A 4412 1 is a high capacity refrigerated air dryer designed for pneumatic control systems requiring a consistent supply of clean, dry air. Operating on a 115V single phase power supply, this unit delivers a rated capacity of 12 SCFM, making it ideal for large scale commercial HVAC automation setups. The A 4412 1 12SCFM dryer utilizes a robust refrigeration circuit to lower the compressed air dew point, effectively removing