|
Vokera boiler expansion vessel problem
QUESTION:I have an old Vokera 80 SP which can't control its pressure. If I
switch it on, the pressure goes up to 4 bar very quickly and leaks out
quickly as well.
I got the British Gas guy out to have a look at it and he said that
the expansion vessel needs to be filled. However, the fitting of the
boiler is such that he couldn't get to the valve to top it up. He was
a bit grumpy about it and told me I should just get a hammer and bang
a hole in the boxing around the boiler to give him access. I was
somewhat reluctant to do this and so he left with the boiler still
unworking.
After he'd gone, I found that I was small enough to squeeze around the
boiler and get to the valve. However, I'm now a little unsure about
topping it up myself. I know I can just use a bicycle pump to fill the
valve, but this page:
http://www.makewrite.demon.co.uk/SealedCH.html
(towards the bottom) says "The most important thing is to do this
while the system is de-pressurised and open (so that the displaced
water has somewhere to go)". How do I make sure the system is de-
pressurised and open?
ANSWER: I'm planning on replacing the boiler within the next few months - I
just need it to last that long.
Are the drain points usually under the boiler, or elsewhere? Will that
drain the whole system?
|
|
|
|
