A DIY & home improvement forum. DIYbanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » DIYbanter forum » Do - it - Yourself » UK diy
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions.

[?] Worcester-Bosch Greenstar boiler - pressure adjustment.



 
 
LinkBack Thread Tools Display Modes
  #1  
Old June 12th 08, 11:16 PM posted to uk.d-i-y
external usenet poster
 
Posts: 51
Default [?] Worcester-Bosch Greenstar boiler - pressure adjustment.


We recently had a new Worcester-Bosch Greenstar boiler installed and
when it was commissioned the CH system was pressure-flushed and checked
OK. I was told by the installer that the system normally runs at 1Bar
pressure and was shown the white tap and square-headed screw underneath
the boiler which are used to readjust the pressure if it drops.
Unfortunately I didn't pay enough attention to this at the time and
now I cannot remember the correct way to top-up the pressure.

I found that there was some air in one of the radiators a few days
ago and when I 'bled' it out I noticed that the boiler pressure reading
has dropped slightly so I would now like to correct things.

I'd be most grateful if one of this NG's experts could tell me the
correct way to use the white tap and square-headed screw to
re-pressurise the system. I'd also appreciate knowing how much the
indicated pressure readings should vary between the boiler being idle
and when it is supplying hot water drawing a bath,

Many TIA - Dave

--
David C.Chapman - )
--------------------------------------------------------------------------
Ads
  #2  
Old June 13th 08, 09:04 AM posted to uk.d-i-y
external usenet poster
 
Posts: 4,838
Default [?] Worcester-Bosch Greenstar boiler - pressure adjustment.

David Chapman wrote:

We recently had a new Worcester-Bosch Greenstar boiler installed and
when it was commissioned the CH system was pressure-flushed and checked
OK. I was told by the installer that the system normally runs at 1Bar
pressure and was shown the white tap and square-headed screw underneath
the boiler which are used to readjust the pressure if it drops.
Unfortunately I didn't pay enough attention to this at the time and
now I cannot remember the correct way to top-up the pressure.

I found that there was some air in one of the radiators a few days
ago and when I 'bled' it out I noticed that the boiler pressure reading
has dropped slightly so I would now like to correct things.

I'd be most grateful if one of this NG's experts could tell me the
correct way to use the white tap and square-headed screw to
re-pressurise the system. I'd also appreciate knowing how much the
indicated pressure readings should vary between the boiler being idle
and when it is supplying hot water drawing a bath,

Many TIA - Dave


I posted this a while back. It refers to a 24i junior but maybe yours is
the same

"Just for the archives, the built in filling loop for this boiler
operates as follows:
Shove the plastic key up into the hole to the right of the white plastic
nut, turn clockwise (it locks at about half a turn). Then turn the white
plastic nut anti clockwise to fill the boiler"

IIRC it needs a bit of force to get the key all the way into the hole
  #3  
Old June 13th 08, 09:23 PM posted to uk.d-i-y
external usenet poster
 
Posts: 3,864
Default [?] Worcester-Bosch Greenstar boiler - pressure adjustment.

In message , stuart noble
writes
David Chapman wrote:
We recently had a new Worcester-Bosch Greenstar boiler installed
and when it was commissioned the CH system was pressure-flushed and
checked OK. I was told by the installer that the system normally
runs at 1Bar pressure and was shown the white tap and square-headed
screw underneath the boiler which are used to readjust the pressure
if it drops.
Unfortunately I didn't pay enough attention to this at the time and
now I cannot remember the correct way to top-up the pressure.
I found that there was some air in one of the radiators a few
days ago and when I 'bled' it out I noticed that the boiler pressure
reading has dropped slightly so I would now like to correct things.
I'd be most grateful if one of this NG's experts could tell me the
correct way to use the white tap and square-headed screw to
re-pressurise the system. I'd also appreciate knowing how much the
indicated pressure readings should vary between the boiler being idle
and when it is supplying hot water drawing a bath,
Many TIA - Dave


I posted this a while back. It refers to a 24i junior but maybe yours
is the same

"Just for the archives, the built in filling loop for this boiler
operates as follows:
Shove the plastic key up into the hole to the right of the white plastic
nut, turn clockwise (it locks at about half a turn). Then turn the white
plastic nut anti clockwise to fill the boiler"

IIRC it needs a bit of force to get the key all the way into the hole


On my 28iJunior, I didn't like the position of the filling loop, so I
left it on and kept my old filling loop arrangement


--
geoff
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Quick Worcester Greenstar "which model" Combi Boiler Question... riz1 UK diy 2 July 31st 07 10:37 PM
Worcester Bosch Greenstar boiler freddyuk UK diy 5 December 14th 05 02:49 PM
Worcester (Bosch) Greenstar HE Combi Boiler question nemo UK diy 88 June 18th 05 07:53 PM
Bosch-Worcester Greenstar issue Christian McArdle UK diy 33 January 16th 04 10:51 PM
Worcester Bosch Greenstar HE timer instructions? Philip Gardner UK diy 5 December 1st 03 12:47 PM


All times are GMT +1. The time now is 11:12 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.SEO by vBSEO ©2010, Crawlability, Inc.
Copyright 2004-2014 DIYbanter.
The comments are property of their posters.