Title: +038=310.101-##047._01-FDV DrM vanning tak.pdf
To reduce flow (DVF models only), turn the flow control stem (B) clockwise. Use your fingers or a slot-headscrewdriver. To increase flow, turn the stem counterclockwise.To open the external bleed, turn the bleed screw (C) counterclockwise two turns. Use the external bleed to flush the valve when you first start the system. Turn the screw clockwise to close it.GB3Operating Ranges075-DV