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72panelvan
Jedi Master
Joined: 17 May 2006
Posts: 297
Location: Dorset/Bristol
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 Posted: Mon Apr 30, 2007 9:20 pm Post subject: Rad and expansion tank |
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Just after confirmation really, does the expansion tank need to be above the raditor? I remember reading it somewhere but don't know for certain. Many thanks
Tom |
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pugvan
Initiate Jedi
Joined: 14 Mar 2006
Posts: 36
Location: lancashire
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| Posted: Tue May 01, 2007 2:04 am Post subject: . |
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| yes |
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richbaker78
Teacher of Padawans
Joined: 31 Jan 2006
Posts: 1298
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| Posted: Tue May 01, 2007 7:31 am Post subject: |
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| the higher the better |
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72panelvan
Jedi Master
Joined: 17 May 2006
Posts: 297
Location: Dorset/Bristol
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| Posted: Wed Jul 11, 2007 1:26 pm Post subject: |
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Hi,
Just trying to mount the expansion tank, as some might know i've got the radiator on the roof, so I'm struggling to get the entire thing above the radiator. Would it be sufficient if the max. line on the expansion tank was above the highest point of the radiator(that being the highest point in the system)?
If not does anyone know of a really flat expansion tank?
Cheers
Tom |
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doppelganger
Jedi Guardian
Joined: 09 Feb 2006
Posts: 778
Location: newmarket
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| Posted: Wed Jul 11, 2007 6:57 pm Post subject: |
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so how does that work on a t25 then?
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ElusiveStranger
Darth Admin
Joined: 23 May 2006
Posts: 2527
Location: Mudway, Kent
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| Posted: Wed Jul 11, 2007 9:34 pm Post subject: |
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| doppelganger wrote: | | so how does that work on a t25 then? |
With great difficulty 
I did read a post somewhere where a T25 owner used a modified drainpipe to increase the header tank 'apparent' height when filling. Said he'd got great success.
Once all the air's out it's not a prob.
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doppelganger
Jedi Guardian
Joined: 09 Feb 2006
Posts: 778
Location: newmarket
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| Posted: Wed Jul 11, 2007 10:00 pm Post subject: |
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| ElusiveStranger wrote: | | doppelganger wrote: | | so how does that work on a t25 then? |
With great difficulty
I did read a post somewhere where a T25 owner used a modified drainpipe to increase the header tank 'apparent' height when filling. Said he'd got great success.
Once all the air's out it's not a prob. |
ive never had a problem with it i just wondered ,there are little tricks to filling to capacity with out problems
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rjes
Jedi Guardian
Joined: 30 Jan 2006
Posts: 652
Location: North Staffordshire
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| Posted: Mon Jul 16, 2007 8:32 pm Post subject: |
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Ideally yes, but it's not essential, as in a T25. If the header is not the high point, you'll need a bleed screw wherever the high point is (as T25). The big disadvantage is that you'll never makr the system self bleed if the header is not at the top.
Dont bother with all the 'parking on a slope' rubbish when filling / bleeding the system - just syphon water in through thehigh spot blees screw with a bucket and washer tubing - much easier. You'll probably need scafolding or something to syphon water into a roof mounted rad though!
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R J Engineered Solutions
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