bleeding system
Thanks all, will follow instructions. Only one other question? Does it
matter where to start? Top radiator? Or is it not important. Many thanks again fella's |
bleeding system
sploop used his keyboard to write :
Thanks all, will follow instructions. Only one other question? Does it matter where to start? Top radiator? Or is it not important. Many thanks again fella's If air is just trapped in the upper part of the radiators, then it makes no difference which order you bleed them. Often air will form in one particular radiator (bathroom in our case) for some weeks after and it may need repeat bleeding. Sometimes it is better to bleed with the system (pump) turned off, as the pumps can cause a negative pressure. -- Regards, Harry (M1BYT) (L) http://www.ukradioamateur.co.uk |
bleeding system
In article , sploop
writes Thanks all, will follow instructions. Only one other question? Does it matter where to start? Top radiator? Or is it not important. Many thanks again fella's For bleeding, start anywhere, for balancing, start with the radiators that you think will be stealing the most flow, most likely the ones nearest the boiler and move on to the ones furthest away. Remember it's an iterative process as the changes you make as you go round will affect the balance of radiators you have just changed. -- fred Plusnet - I hope you like vanilla |
bleeding system
In an earlier contribution to this discussion,
fred wrote: In article , sploop writes Thanks all, will follow instructions. Only one other question? Does it matter where to start? Top radiator? Or is it not important. Many thanks again fella's For bleeding, start anywhere, for balancing, start with the radiators that you think will be stealing the most flow, most likely the ones nearest the boiler and move on to the ones furthest away. Remember it's an iterative process as the changes you make as you go round will affect the balance of radiators you have just changed. For balancing, quickly go round all the rads with your IR thermometer, and note the flow and return temperature of each one. Then start turning the lockshields down on the rads with the smallest temperature *drop*. Remember, you're aiming to get the same drop on all of them - and you do this by restricting the flow through the rads with too low a drop. -- Cheers, Roger ______ Email address maintained for newsgroup use only, and not regularly monitored.. Messages sent to it may not be read for several weeks. PLEASE REPLY TO NEWSGROUP! |
bleeding system
In article , Roger Mills
writes For balancing, quickly go round all the rads with your IR thermometer, and note the flow and return temperature of each one. Then start turning the lockshields down on the rads with the smallest temperature *drop*. Remember, you're aiming to get the same drop on all of them - and you do this by restricting the flow through the rads with too low a drop. A good summary, I may borrow that ;-) Although I do use the British Standard hand for the first pass. -- fred Plusnet - I hope you like vanilla |
bleeding system
In an earlier contribution to this discussion,
fred wrote: In article , Roger Mills writes For balancing, quickly go round all the rads with your IR thermometer, and note the flow and return temperature of each one. Then start turning the lockshields down on the rads with the smallest temperature *drop*. Remember, you're aiming to get the same drop on all of them - and you do this by restricting the flow through the rads with too low a drop. A good summary, I may borrow that ;-) Thank you - feel free! It's a good practical method which always works without needing to carry out any complex analysis of the system. -- Cheers, Roger ______ Email address maintained for newsgroup use only, and not regularly monitored.. Messages sent to it may not be read for several weeks. PLEASE REPLY TO NEWSGROUP! |
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