Samson 3244-1 - Page 42

7-2 EB 8026 EN
Operation
7.1 Normal operation
The handwheel of valves with actuators tted
with a handwheel must be in the neutral po-
sition during normal operation.
7.2 Manual operation
Valves with actuators tted with a handwheel
can be manually closed or opened in case of
supply air failure.