Greenstar 24i Junior - Help to drain down system

[Doc Lenny]

Hi

Hope you can help. I have a leaking rad valve (upstairs) I need to drain the system down to work on the problem. I know how to re-pressurise the system but not drain down, non of my downstairs rads have drain valves on - any help appreciated.

Doc

 

[LUNAT]

HI

easy

1.turn the boiler off
2.undo any radiator valve (pick closest to the outside door)
3.slowly drain entire system (few buckets of water)
4.fit new rad valve with drain (for future )
5.repair the leak (upstairs )
6.refill the system
7.bleed the rads
8.turn the boiler on
9.happy days

 

[Doc Lenny]

Thanks for your help.

The actual leak was enough to drain the system enough for me to work on the valve.

I was looking to get an answer specific to the boiler in question (Greenstar Junior 24i) I thought I may be able to drain the ststem from a valve on the boiler and attach a hose??

 

[LUNAT]

HI

if there is any drain valve fitted then yes .

 

[Hugh Jaleak]

Should be a drain off at all the low points on the system. If rads are on 'drops' i.e. pipe feeding come down the wall from upstairs, then a drain point should be fitted at each drop.

If you havent got these then the installer was an idiot! Can drain via a rad valve if necessary, depending on your plumbing skills whether you want to retrofit drain off's as required.