this board is a direct replacement solution that maintains the operational integrity of standard-efficiency Trane and American Standard residential systems

the AVDO can be mounted in horizontal or vertical piping

the counterweight should be set using a manometer to match the manufacturer's static pressure requirements

maintaining system thermal regulation efficiency without the need for field calibration

A sticking sequencer contact is a common cause

ASCO 8221G29 Solenoid Valve Els PW 17895 this board is a directThe ASCO 8221G29 Solenoid Valve is a high performance 2 way normally open solenoid valve designed specifically for demanding water service applications. Featuring a robust brass body and high quality NBR seals, this 1 1 4" NPT solenoid valve utilizes a pilot operated mechanism to manage pressure ranges from 5 to 150 PSI. Engineered for efficiency, the slow closing solenoid valve design effectively minimizes water hammer, protecting your piping system