Help! Topping up CH system (was Bleeding Radiators)
 

I just went round 2 radiators bleeding the air out of them. On the 2nd
there wasn't much air at all coming out. On checking the combi boiler, the
pressure bar has fallen to 0. It was only just over 1 to begin with.

What do I do now? Will it top up automatically somehow?
How do I do it myself?
Is it unwise/dangerous to put the CH back on now? What about using hot
water?

Help!

In article , "AberTech"
says...
I just went round 2 radiators bleeding the air out of them. On the 2nd
there wasn't much air at all coming out. On checking the combi boiler, the
pressure bar has fallen to 0. It was only just over 1 to begin with.

What do I do now? Will it top up automatically somehow?
How do I do it myself?
Is it unwise/dangerous to put the CH back on now? What about using hot
water?

There's a valve somewhere that lets you pressurise the system from
the mains water supply.

Rob Morley wrote:
In article , "AberTech"
says...
I just went round 2 radiators bleeding the air out of them. On the
2nd there wasn't much air at all coming out. On checking the combi
boiler, the pressure bar has fallen to 0. It was only just over 1
to begin with.

What do I do now? Will it top up automatically somehow?
How do I do it myself?
Is it unwise/dangerous to put the CH back on now? What about using
hot water?

There's a valve somewhere that lets you pressurise the system from
the mains water supply.

Got it thanks. Just under the combi boiler...

"Rob Morley" wrote in message
t...
In article , "AberTech"
says...
I just went round 2 radiators bleeding the air out of them. On the 2nd
there wasn't much air at all coming out. On checking the combi boiler,
the
pressure bar has fallen to 0. It was only just over 1 to begin with.

What do I do now? Will it top up automatically somehow?
How do I do it myself?
Is it unwise/dangerous to put the CH back on now? What about using hot
water?

There's a valve somewhere that lets you pressurise the system from
the mains water supply.

This valve usually needs a bit of flexible pipe to connect it to a second
valve on the mains water supply side. Once connected both need to be opened
and the pressure restored. 1.2 bar would normally do when the water is cold.

It is then normal to both close off the valves and remove the flexible link

Tony

In article , "TMC"
says...

"Rob Morley" wrote in message
t...
In article , "AberTech"
says...
I just went round 2 radiators bleeding the air out of them. On the 2nd
there wasn't much air at all coming out. On checking the combi boiler,
the
pressure bar has fallen to 0. It was only just over 1 to begin with.

What do I do now? Will it top up automatically somehow?
How do I do it myself?
Is it unwise/dangerous to put the CH back on now? What about using hot
water?

There's a valve somewhere that lets you pressurise the system from
the mains water supply.

This valve usually needs a bit of flexible pipe to connect it to a second
valve on the mains water supply side. Once connected both need to be opened
and the pressure restored. 1.2 bar would normally do when the water is cold.

It is then normal to both close off the valves and remove the flexible link

I knew someone who knows what he's talking about would be along in a
bit :-)

I just went round 2 radiators bleeding the air out of them. On the
2nd
there wasn't much air at all coming out. On checking the combi
boiler,
the
pressure bar has fallen to 0. It was only just over 1 to begin
with.

What do I do now? Will it top up automatically somehow?
How do I do it myself?
Is it unwise/dangerous to put the CH back on now? What about using
hot
water?

There's a valve somewhere that lets you pressurise the system from
the mains water supply.

This valve usually needs a bit of flexible pipe to connect it to a
second
valve on the mains water supply side. Once connected both need to be
opened
and the pressure restored. 1.2 bar would normally do when the water is
cold.

It is then normal to both close off the valves and remove the flexible
link

Ours has a cool little 'key' thing which you insert into the filling section
and turn to connect the cold supply to the CH loop, then open the valve and
pressurise the system - no need to go hunting for the flexible hose :o)