Remove the Transportation Lock and the Valve Dummy

The following procedure demonstrates the necessary steps for installing the valve head to the valve drive of a Multicolumn Thermostat (MCT).

For the installation of a valve head to a G1170A Valve Drive you can ignore the steps that describe the MCT features of the transportation lock and spring loaded valve drive.

When unscrewing the transportation lock, push it back until the last screw is removed - the valve rail is spring-loaded.
Press on the valve dummy (1.) to release it (2.) (spring-loaded valve rail).