Alfapat

Hmm , need more info on that one, if you had a pumped shower off the hot pipe surely the return would have to shut off as it would continually lose flow and pressure.

Your correct about the long lead time , I get the reminder every night! I say to my partner just run the cold off first and dont rely on the hot water staying that hot with the lead time already in. However the pipes are insulated with some of it the old fashioned brown jute stuff, and this is Scotland . Iam trying to up the temp with the cotroller with a higher flow , but seeing the code to set , other than that , three dots using the immersion may up the storage temp a bit more/

So standing under a 50c temperature with a mixer shower from Air source heated tank is hot enough, is it, can you tell me? Do you know the water pressure? I may as I said further down this thread that if I can automate the booster heater to come in, this may compensate for temperature loss down to the end of the bungalow.

As I never finished this thread properly , I thought I would say much of the problems I had are gone . The plumber /electrician I eventually found knew what he was doing and found all the wiring wrongly set up. Basically the system was not independently running between the two sys ie. DHW AND HEATING . So all last year through the summer , heating side was using cold and vice versa! Bills are a lot less , thankfully.

I have installed a Samsung Outdoor Heat pump 16kw. After 7 years , I have finally resolved and error which was down to the electrical wiring and central belt Scotland cowboys who went bust after one year , not helpful! However , my bungalow is quite long and with the temperature of DHW in this system reaching normally 48degrees , the bath water has to run for some time like 2mns at least to be useful. I am about to replace the electric shower to an up to date power one and with the system as it is , I am wandering if a Joules unvented tank for hot water and mains cold will be ok for a power shower with mixer . Is 48c hot enough and balance with cold mains. Mains is not high pressure , but the tank is probably fed with the same supply. There is a thought that if I send the control unit(version 5 to the setting with three dots instead of eco two then there would be enough water , better than running a bath every night at least.

So far , I have found out part of my fault is an intermittent HW motorized valve is faulty. Which would explain scavenging of the system . Also not certain , but the valves (HW and Heating ) may wired wrongly . Electrician checking Friday.

Nope , this is not working , DHW SET TO REACH 50C but cuts out at 48c , will check my new parameters set. DHW no better at other end of Bungalow despite lagging . Heating till 3am when I happened to be up , 20c House temp .,which was fine . Circulation /flow 39c set for 52c -1c outside. 6.30 am No heating and error E911 showing and defrost on for pump. Cancel by pressing On button gen5 Sun icon. Got home and DHW sitting at 48c and circ 53c so kind of working , but why not all the time . Recko there could be scavenging but not all the time , probably switch valves . As for error code , which is flow fault , I can only put this down to frost , but it should overcome this. Just saying perhaps it might help someone with the same scenario , will post when I get a result.

Yes spot on. Only I have what Freedom Pumps suggest on Video which is 48c , I will up this tonight to 50c and put flow up to 52 , now that the DHW icon disappears because it reaches desired temp due to the proper placement of probe. Sorry if I don't come across correctly but I do understand now thanks.

Going back to the title "Living with" I thought all would be fine with the hot water on track at 48c , but complaints from her indoors says there was barely enough , colder night I suppose and a long cold length for it to travel , so I am upping the temp by 2 degrees and since the DHW tank temp icon disappears from the controller now , the expected power usage should drop. Just to ruin all this the heating failed to come on when I happened to be up this morning , what in heavens name is going on , no error codes -0.5 c outside , 17.5 on thermostat asking for heat which is set for 20c All back to normal just now 10.am. Worse than having a Land Rover or is it 🤨!! ?

If you look back there is a picture of my system , water to right, valves between tanks. Not sure which valve is which till I study it again. Page one of thread.

Yes I know what kw/h stands for , I am noy seeing your point of posting , sorry.

WHAT!

They are very close , strange that I have a holding tank for heating, but that surely is a good thing. I'm not sure were the coli is placed in the dhw , I m sure I can work that out , doesn't matter just now. I have a hot water expansion and dhw expansion tank

Yes , I am really hoping that this shows that the pump or set temp is happy now and Im looking for for less consumption. It would make sense but time will tell. Even in the summer that tank icon and pump cycling is always on and the only way of deleting it is to turn off the system , as I saw it . It saved 10-15kw/h through 8 hours

I never saw the hot tank icon disappear in the the last 5 years of operation , I think I have had a small beakthrough. I measured the water this morning and as I said earlier and found out that the cake probe i used under the hot tap was showing 47.c. So following that I went to the loft with some warm water and pulled the probe out of the tank and dipped it in with the cake probe into the water and both showed the same results. I rest the probe into the tank and found it short of length and so unclipped the lead from the loom to gain a bit more, so I reckon a further 6 inches was found and put it back in. Incidentally the cake probe was showing 47.5.c at 4.5 inches. Secured the wire and went back down , looked at the hot tank temp on the controller and alas showing 48.c . What happened next, the tank symbol disappeared ! First time ever! So now Ill see if the kw/h will reduce. I can only presume that the machine has constantly tried to reach the temperature set , I don't know . Watch this space !