Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 1 minute ago, newhome said: We're down to 12kw now so on a go slow so I think the boiler's having a cuppa. The dial next to the PHE reads 50 and the other one reads 45. It's been like that for a fair bit so I don't think the TS is going to get any hotter with the boiler set to 65. Might be wrong but just a feeling ...... Yup, and one of the things I spoke to Technical about was my concern that the PHE wasn't man enough for the job. A fear that may now be realised. When you say a fair time, how long? Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 The silver pump next to the PHE, can you see if its on 1,2 or 3...if it has numbers on it? Link to comment Share on other sites More sharing options...
Simplysimon Posted February 22, 2018 Share Posted February 22, 2018 4 minutes ago, newhome said: The cock's indispensable or the stat? don't need a stat! 5 minutes ago, Nickfromwales said: If someone has a stat outside the boiler room that controls the temperature of the cylinder, then that is 100% a cock-stat. Sorry, but thats just a fact. defo the wrong place and seriously impressed with the info/help in this post Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 This? Set to 3 and hot! Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 8 minutes ago, Nickfromwales said: Yup, and one of the things I spoke to Technical about was my concern that the PHE wasn't man enough for the job. A fear that may now be realised. When you say a fair time, how long? 20 mins ago I reckon. Hasn't got any hotter since then. Boiler power is down to 6kw now so just ticking over. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Ok, so its doing what its supposed to do. Is it scaling hot, or can you just about keep your hand on it? Its mounted upside down which is a huge no-no for pumps. The pump should have been located elsewhere in the run so it could be horizontal or vertical facing upwards. The reason I ask how hot it is is to ascertain if the bearings are overheating. Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 1 minute ago, Nickfromwales said: Ok, so its doing what its supposed to do. Is it scaling hot, or can you just about keep your hand on it? Its mounted upside down which is a huge no-no for pumps. The pump should have been located elsewhere in the run so it could be horizontal or vertical facing upwards. The reason I ask how hot it is is to ascertain if the bearings are overheating. Is like trying to keep your hand on the hottest radiator. Touch it and remove hand! Couldn't keep my hand on it. Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 22, 2018 Share Posted February 22, 2018 34 minutes ago, HerbJ said: Is that everybody following this compelling post? Naturally. Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 What should I have done with the red things? They are all open max just now which is what they were to start with. Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 The UP green pump is hotter. Actually have just burnt my bloody hand on that! Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Just now, newhome said: What should I have done with the red things? They are all open max just now which is what they were to start with. Leave them on max for now. From the pics they are both outgoing, so shouldn't interfere with heating the TS, but if set to max then moot. Strange that the TS isn't drawing at least 50% / 9kw from the boiler to get the TS up to target temp of 65oC. My suspicion is that the PHE isn't man enough. Either that or its partially blocked, but id only know that by removing it and checking against the manufacturers spec etc. Are all the UFH manifolds ( did I hear you say that theres 4 full manifolds doing soave heating ? ) lower than the TS, eg is it upstairs and the manifolds are low down upstairs and low down downstairs ? Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 1 minute ago, newhome said: The UP green pump is hotter. Actually have just burnt my bloody hand on that! Curiouser and curiouser. Let me go look at the pics again. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Try not to burn yourself whilst im away 1 Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 22, 2018 Share Posted February 22, 2018 (edited) Do we know the fluid temperature circulating round the boiler / plate heat exchanger circuit is that at 70ish? Edited February 22, 2018 by MikeSharp01 Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 1 minute ago, Nickfromwales said: Leave them on max for now. From the pics they are both outgoing, so shouldn't interfere with heating the TS, but if set to max then moot. Strange that the TS isn't drawing at least 50% / 9kw from the boiler to get the TS up to target temp of 65oC. My suspicion is that the PHE isn't man enough. Either that or its partially blocked, but id only know that by removing it and checking against the manufacturers spec etc. Are all the UFH manifolds ( did I hear you say that theres 4 full manifolds doing soave heating ? ) lower than the TS, eg is it upstairs and the manifolds are low down upstairs and low down downstairs ? There are 4 of the red things. Yes 4 full manifolds. Sorry not understanding what you mean by low. Low temperature? How do I know? Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Any chance of a pic side on, taken from in front of the boiler facing the red top TMV's and the two green pumps. One high, one low, and one zoomed out. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Just now, newhome said: There are 4 of the red things. Yes 4 full manifolds. Sorry not understanding what you mean by low. Low temperature? How do I know? Physically mounted low. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Im trying to work out if the TS could be fed direct by the boiler by connecting it to the sealed and pressurised circuits. That would do away with the F&E tank, and do away with the PHE. The red topped TMV's nearest the two green pumps need to be fully open if poss. Pics as requested please if poss. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 I cant work out why the green pump would be a) on b) so hot you can burn yourself on it if the boiler is only chucking out 50-60oC at the mo as shown by the thermometers. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 22, 2018 Share Posted February 22, 2018 Putting children 3 & 4 into their sleep cages. Pics please and back shortly. Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 4 minutes ago, Nickfromwales said: I cant work out why the green pump would be a) on b) so hot you can burn yourself on it if the boiler is only chucking out 50-60oC at the mo as shown by the thermometers. Maybe I is a wimp? Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 22, 2018 Share Posted February 22, 2018 @newhomeHave you got a cooking thermometer anywhere? If so touch the end on the pump and lets see how hot it actually is. Link to comment Share on other sites More sharing options...
PeterW Posted February 22, 2018 Share Posted February 22, 2018 Maybe that pump is pushing against a closed valve .... @newhome did you say all the red topped Reliance valves are set to 65c..?? Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 1 minute ago, PeterW said: Maybe that pump is pushing against a closed valve .... @newhome did you say all the red topped Reliance valves are set to 65c..?? Yep, all at 65. Link to comment Share on other sites More sharing options...
newhome Posted February 22, 2018 Author Share Posted February 22, 2018 Pics below. The room isn’t that big so not that easy to get zoomed out pics. Well not on iPhone anyway. Dog photobombed photo 4 Temp gauges still at 45 and 50 respectively. 2 sets of manifolds are 670mm to the higher of the 2 horizontal pipes (hot?) downstairs. There are 2 sets upstairs which are physically higher of course. Link to comment Share on other sites More sharing options...
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