ISOLATION VALVESEach isolation valve is a shut-off butterfly valve. It is mechanicallyactuated by a 28V DC motor and electrically controlled from the VC.The valve has two positions and is fitted with two limit switches forFully Closed (FC)/Fully Open (FO) position detection. The valve alsohas a thermal overheat protection. A manual lever shows the valveposition and makes manual overriding possible.