Flexicom sx system pressure low

top_dog

Hi, the flexicom sx boiler is reading 0.2 bar. I've tried to re-pressurise the system but not succeeding.

I've seen a thread with instructions on how to do this here but it's not working for me so either doing something wrong or else there is a different underlying problem.

From the pic attached I would be very grateful if someone could instruct me on how to re-pressurise the system?

top_dog

Photo attached

agusta

There is a valve on both sides of the filling loop,the gate valve is one,the other valve is build into the filling loop on the opposite side

top_dog

agusta wrote: »

There is a valve on both sides of the filling loop,the gate valve is one,the other valve is build into the filling loop on the opposite side

I closed the red valve (closer to attic) and turned the gate valve (closer to hot water cylinder) but nothing happened.
I removed the filling loop and it's dry. There is no water going through it. Not sure if there should be?

K.Flyer

See the grey pipe coming out off the ground, where the filling loop connects to it there is another valve. The bit you turn, a recessed slot, is facing away from you. Turn it so that it is in line with the pipe, then open (anti clockwise) the red gate valve in the picture.
Try to have someone watching the pressure on the boiler at the same time, and stop filling at approx 1.2 bar.

top_dog

No joy with that unfortunately. Could there be some other underlying problem?

John.G

K.Flyer wrote: »

See the grey pipe coming out off the ground, where the filling loop connects to it there is another valve. The bit you turn, a recessed slot, is facing away from you. Turn it so that it is in line with the pipe, then open (anti clockwise) the red gate valve in the picture.
Try to have someone watching the pressure on the boiler at the same time, and stop filling at approx 1.2 bar.

If the OP or anyone for that matter are a bit unfamiliar with them, gate valves
valves can be a bit confusing, they will usually have up to 1/2 a turn free play before even starting to open, they can then be be turned about another 4 full turns before they are fully opened and the same applies when closing them.

K.Flyer

True, they are an absolute nuisance.
I rarely use them now, I much prefer using decent lever valves for any form of isolation. The only time I would still use a gate is for cylinder balancing.