Posted by: @saf1973

@derek-m

Yes, my mistake on the drawing, thanks for pointing it out.

 The new plumber is pretty much starting from fresh, he's done a survey, will talk to Daikin, measured up for new Rads where the rooms couldn't get up to temperature and will go away and do a report.  Hopefully things will start moving in the right direction now (no pun intended!).

 

An alternative, if the internal water pump in the outdoor unit is man enough, would be to disconnect both return water pipes from the buffer tank and connect them together. Fit plugs to the buffer tank connections and remove the external water pump. The buffer tank would then just act as a capacity vessel, and there would be no chance of the flow and return water mixing.

@derek-m

Will bookmark your suggestion and look to try that once its gets through sign-off and it's "mine" to play with.

Ok, so its now been 3 weeks since the last plumber came around with the promise to complete the work, still no show.  I spoke to their office last week and was promised a date by the end of last week and that has come and gone.

So I have now started proceedings with the MCS against Solartherm UK (Silvercrest Ltd).  Deposit paid December 2020!

Later I will also be pursuing the company for the cost of the additional electricity used due to having to use additional space heaters and electric water heaters, loss of RHI against the electricity used by the ASHP to date and should they fail to register the install for RHI I shall also be seeking 7-years worth of RHI payments.

They have also falsely claimed the green homes grant as the payment was made to them on the proviso that they were to complete the install that weekend (many months ago now).  Note I told the GHG people that the install was incomplete before they issued payment based on the promise of completion.

Posted by: @saf1973

Ok, so its now been 3 weeks since the last plumber came around with the promise to complete the work, still no show.  I spoke to their office last week and was promised a date by the end of last week and that has come and gone.

So I have now started proceedings with the MCS against Solartherm UK (Silvercrest Ltd).  Deposit paid December 2020!

Later I will also be pursuing the company for the cost of the additional electricity used due to having to use additional space heaters and electric water heaters, loss of RHI against the electricity used by the ASHP to date and should they fail to register the install for RHI I shall also be seeking 7-years worth of RHI payments.

They have also falsely claimed the green homes grant as the payment was made to them on the proviso that they were to complete the install that weekend (many months ago now).  Note I told the GHG people that the install was incomplete before they issued payment based on the promise of completion.

 

I am pleased to see that at least one disreputable installer is being taken to task. 😮 

March update!   I've had another plumber around today, all on his own, ripped out the mess that was there and replumbed in a day as well as moved the outside unit for more flow, levelling it up and lag it all.  Its just a shame its taken Solartherm 15 months to get to this point.

So here's the schematic that has been implemented, a huge improvement in temperature already, its 6degrees outside now and the house is too warm with a flow at 40C (apart from the undersized rads rooms).

The job is not finished yet, the controller is either duff or has been locked somehow as it only shows the date/time menu and allows LWT temperature adjustment (up/down), nothing else.   Its ERKUCBL2 - does anyone know how to reset it to factory to see if the menus appear?

Also, 3 rads still to change, add glycol and install the replacement controller in the hallway rather than in the hot cupboard.  Plus take all the EVOhome TRVs off, although i may leave 2 rooms with them on where i want lower temperatures.

and of course the DHW still isnt working as there is no control or stat to operate it.

Less than two weeks before RHI registration closes so its a tight one........ i have an MCS/NICEIC complaint logged for the record in case we end up in court should this not be registered with RHI in time.

Hi @saf1973

Watch the following video which may be of some help.

Hi @saf1973

Here is a further video that may be of use.

@saf1973, good to hear you’re making progress, and also glad to hear you’ve got a case open. Please keep us updated on the case because I’m keen to hear how that goes. You’re one of the first people I know who has lodged a formal complaint. If you get a resolution, and the case is closed with no legal ramifications, would you consider writing an article on your complaint experience which I think would be hugely helpful to other homeowners that are stuck with bodged installations?

@editor will do, although now I have a decent plumber I think I may actually get this resolved before MCS/NICEIC have to press further.  But I will write a short guide on the process as the MCS emails could be better written so its a bit confusing to get going.

This is the best guide to the Daikin Mono controller I've seen.  It helped to resolve the issue of the hidden Installer menu items.

(29) Daikin Altherma Heat Pump Hydrobox C Series Controller Tour Of The Installer Menu - YouTube

Posted by: @saf1973

@editor will do, although now I have a decent plumber I think I may actually get this resolved before MCS/NICEIC have to press further.

...

IMHO, it's more difficult to fix someone else's mistakes than to do it right yourself in the first place so if he or she does actually resolve your issues don't forget to big him or her up here as well. 

Posted by: @saf1973

@editor will do, although now I have a decent plumber I think I may actually get this resolved before MCS/NICEIC have to press further.  But I will write a short guide on the process as the MCS emails could be better written so its a bit confusing to get going.

I would appreciate that, and then I can raise it MCS to see if they can simply or clarify things.