Hot water and heating control with my Mitsubishi Ecodan Air-Source Heat Pump (ASHP)?

Ok, I’ve also got @hambrook @M.isterW and @Nicllb down as having Ecodan units, according to the threads in the Smart Home Trials Treehouse. I’ll ask them to stop by, as they might know some tips.

*edited by moderator*

some initial thoughts. 
Make sure all internal pipework around the tank and valves is insulated, see photo below. 
Set a schedule for your hot water, don’t use reheat only mode, despite what some installers say, they just don’t want to be called back for a lack of cold water. Use Schedule and reheat. If you are not on a cheap overnight tariff then early/mid afternoon is typically the most efficient time of day to reheat your water. Set it around 48C, with a  reheat threshold around 38C (all depends on how much water you use). 
Set back the overnight heating temperature a couple of degrees. 
The occasional running might be the anti-freeze mode, when it runs but doesn’t add much heat. For example when external temperature is below 5C, the system runs to stop the water in the external pipes freezing. Not much you can do about this. But insulated pipework inside will reduce the noise if this hasn’t been done. 
 

Thanks @hydrosam

I haven’t seen reheat mode but I’ll look into the settings.  Once I got the ASHP on the Wifi I’ve been using the MEL Cloud App but there is no way to change the lower reheat threshold and the Heat Now in uses the emersion heater as the fan outside doesn’t come on when I activate but the pumps near the tank do.  I initially thought the night time starts were the anti freeze kicking in and whilst its happening less as the temps have warmed up it still happens.

They have left all the pipes in the airing cupboard complete uninsulated and even the pipe outside aren’t as nicely done as yours, but I can look into that too. 

Great to have another new ASHP’er here seeking advice!

Just in case you hadn’t spotted it we’ve got a great collaborative to getting that pipe insulation up to tip-top efficiency over here:
 

Really interesting to see a screenshot of your MEL Cloud App too. Not sure if any others here have used this or a similar app to tweak their settings. @hydrosam, @nealmurphy, @hambrook - Am I right in thinking you’ve been adjusting your settings on the Heat Pump itself?

@Jess_OVO i can only manage settings through the main controller. My older generation of heat pump has no app 😭.

@Speps and @James_N are both Mitsubishi owners and will know there way around the details of the settings better than me. 

The screen shots higher up in the thread are from the same app they are showing "Reports" my screen shot is from the "Control" section.

Are we ALLOWED to login to MEL Cloud as part of the OVO Heat Pump Trial? What, if any changes, are we allowed to make? @Jess_OVO @Tim_OVO 

Does anyone know if the Heat Pump Pipe Insulation should be installed as part of the Hies guarantee. My indoor pipes have nothing at all and the outdoor ones don't come anywhere near the standards in the guide.

This might be what I need to get Hafod back to finish the work.

@Jess_OVO Unfortunately we weren't given access to apps as part of the trial for some reason, so all tinkering is via the unit itself, though I've stopped short of getting my screwdriver set out!

Surely this isn't right. We ran a bath this morning and the water still hasn't even.attempted to get back to operating temperature (45).