S Plan water hammer
- Thread starter Mike2007
- Start date
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sounds like the valves not opening on its own only by you opening it.
check the motor in the actuator.
check the motor in the actuator.
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factory fit, but will check?
Could not work out adjustment method, tried twisting but not difference on dial. Should it always have some let-by?
At what pressure do by-pass valves start to open, if hot pressure in system is 2 bar?? Its in increments of a bar of course.
Some auto bypass valves have a screw in the centre of the cap that has to be loosened before adjustment can take place.
You are supposed to turn on the ch only, close all trv's, then adjust the abv until you feel the water pass through, then turn it back 1/2 a notch.
You are supposed to turn on the ch only, close all trv's, then adjust the abv until you feel the water pass through, then turn it back 1/2 a notch.
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