Johnson Controls A28AA-20 Temperature Control Els PW 29614 Split core design allows for

Split core design allows for rapid installation on active circuits without interrupting power

While it can physically connect to AG series actuators for water applications (up to 200°F)

If these are clear

the flame sensor wire may be failing to carry the rectification signal

Johnson Controls A28AA-20 Temperature Control Els PW 29614 Split core design allows forThe Johnson Controls A28AA 20 is a heavy duty two stage temperature control designed for multi stage heating or cooling applications in commercial refrigeration and HVAC systems. Featuring dual SPDT switches, this controller allows for independent sequencing of equipment loads, making it ideal for managing staged compressor banks or ventilation systems. The unit operates across a wide voltage range, including 120 208 240 277 Vac, ensuring