
Symptom
Cause
Remedy
the open (CCW) direction. When ex-
cessive force is applied the internal
stops will engage and cause the cov-
er to be bound in the open position.
lock feature that engages when ex-
cessive counter clockwise force is ap-
plied to the cover.
7.1 Troubleshooting
28
EnviZion and BioviZion Valves Installation, Operation, and Maintenance Manual