Daikin Altherma 3 and Sunamp zero emissions boiler - Annual service

Should have mentioned we had no feedback/reports either from the monitoring. Was advised by Ovo that as trialists this info was not for our eyes! Plus turns out similarly to @PHILLI2  lots of gaps in the data collected. 

Thank you your comments Nicllb, it does seem strange this lack of onward service and data info? Firstly why give out a service package without conducting a service and i was under the impression that the monitoring of the system was to record and assess the data to help efficiency for both the system and the consumer (trialists) so we could reap the benefits of this new technology.

I had the same experiance, it's unfortunate that the home client being kept in the dark regarding data and system operation meant that the homeowner had very little opportunity to ensure the best performance was gained by using real-time operating data and what level of service / monitoring they should be getting.    3rd party ASHP engineers like HeatGeek were also unwilling/unable to provide help regarding info/service if there were gaps in the initial installers provision due to lack of system design specs, monitoring data and access to the hardware/software.  These issues were probably accepted as just part of the trial phase but it seems lack of info sharing between the technical teams rather than between client and technical teams were a significant barrier and probably an unnecessary level of separation for the confidential and impartialit/confidentially  needs of the Trial parameters.

Now the trial has ended for the clients who have had the Heat Batts removed, it would be proper for OVO to do an review in order to check whether all the systems are in the correct condition and then going forwards provide the info to the clients regarding ongoing service plans, schedules and details of companies to contact for any issues.

Overall I was very happy to have been part of the Trial, but also I think it perhaps didn't achieve the best performance outcomes because there wasn'ta very effective program/communication to refine and improve the systems according to real-world feedback. This also had an impact when there were system problems as the lack of data or sharing of information, caused delays in getting the system repaired/working again.

Totally agree that all the data collected ought to have been monitored like a hawk by the installers and they should have kept our heat pumps running at the highest efficiency possible. Mine suffered a leak of nearly half the refrigerant when it had been running for only four months, amazingly it kept going but at reduced efficiency. The installer and OVO smart homes could see the lower COP, but it seemed anything over 2.8 was deemed acceptable. It’s only because I’d recorded the meter readings myself every day that I could see the drop in performance. In spite of me requesting that it was looked at to find the problem, it took 20 months running at that poor state before the problem was diagnosed and dealt with.

Now I’m getting a much higher COP no one will see that because the Passiv monitoring system has been flashing a fault for the last three months. Emails to all and sundry have had no effect. I’ve unplugged the Passiv now.

We also didn't have a service from the installers. But I did get a local company do an annual inspection and service on the heat pump. They did a great job but we're unable to check the control system due to the complexity (although I don't think it needed any checks). Although the company are also a Sunamp installer there wasn't anything that needed doing to the heat batteries.

My plan is to continue using this company for annual services.

Hi

what would usually get done on an annual service? Is it worth for the cost?

is a ratio of 2.5 energy in to energy out reasonable?

Hey @Boots and Bens 

Hope the annual service goes well. You may find this topic particularly helpful on this:

Hopefully that’s helpful, or someone who’s recently had an annual service may step in and share.