Resideo PVU100 Control 318423-701 What is the fail-safe position

What is the fail-safe position for this valve

Any visible cracking or loss of elasticity in the original seal indicates a need for a 71W29 gasket replacement to prevent further system degradation

4442-01 ensuring no bypass air

055") protected by a 50x60 mesh screen to facilitate consistent oil return to the crankcase

Featuring a rugged brass body and cover

Resideo PVU100 Control 318423-701 What is the fail-safe positionThe Resideo PVU100 is an essential universal power vent control designed to manage combustion air and exhaust sequences in residential gas water heaters. As a veteran tech, you know the importance of a precise ignition sequence; this controller coordinates the draft inducer blower with the water heaters gas valve to ensure a safe, established airflow before combustion begins. It is a critical component for installations where atmospheric venting is