How To OPTIMISE Your DAIKIN Heat Pump Controls!

In this video, Adam shows us how to optimise your Daikin heat pump controls!

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[ralpharmsby]

I have just had a Daikin heat pump fitted and am amazed at how complicated it is even to just get basic temperature settings right. I mean who is going to want to talk about graph curves etc. Surely a simple ECO mode etc would be better for most people. If I showed this video to friends and family they would be unlikely to follow our example

[owenattewell]

Ah I was doing my own version of this for our customers. But yours is brilliant, i hope it guides and encourages customers to start learning about their system rather than thinking a HP is "fit and forget"

[thefenderdefender]

Now that we've all mastered the heating control, perhaps you could do a video on controlling the domestic hot water!?

[adamsabljakovic]

Totally helped me to set the proper heating and consumption of electricity was half (now 12-18kWh/day previous 30-40kWh/day) the leaving water temp is 26-28°C (floor heating). I also turned off BSH for boiler (only for legionella left on for once a week) and turned on schedule which lowered the consumption from 40kWh/day to max 3-4kWh/day with no temperature difference (50°C water). Thanks Heat Geeks!!

[emdrum]

I have a recently commissioned Daikin ASHP and watched this with interest. It's full of interesting tips but having followed the guidance my heating was all over the place - often far too warm for the weather, even though I turned down the target at design temperature. I watched it again and again to see where I went wrong, and eventually became suspicious of the comment about Modulation. I live in a relatively modern bungalow which is well- insulated with fairly high levels of solar gain, and had set the Modulation initially to 6, and then to 9, to try and deal with the issue. The temperature was all over the place. As a trial, I set it to 1, and the whole thing settled down into a smooth level temp throughout the day. Is it possible you've got these settings the wrong way around in the video? To my mind, if you have a well-insulated property with low heat loss then you don't want the ASHP to vary from the WC curve too much because the heat stays in the property. However, in a house built for coal fires and without cavity walls the temp is going to vary widely depending on conditions and the ASHP needs to be able to adjust accordingly. Or have I misunderstood its purpose?

[RJ-ivdv]

At 3:21 you say that the emitter type changes the flow/return deltaT. What effect does this have on efficiency and other parameters? What are the advantages or disadvantages of having a higher or lower deltaT?

[adamcole]

Thank you so much for this!. Wish the Daikin manual was half as good.

[JimCassidy-xyil]

Great to see Daikin specific info - BUT PLEASE PLEASE can you do the same for the older 'control box'? Thanks Geeks

[thomasneely]

Thanks for posting these, can you please do it for the Mitsubishi Ecodan


Thank you.

[devildriver]

@Heat Geek - I have an Daikin Altherma 3 with underfloor heating in a new house with good insulation and thermostats in every room ( not connected to Daikin ). I did not fully understand the Modulation parameter. You say that it's better to be close to zero ( I have it on 1 ) on old houses with a light insulation and high heat loss - after that you say that the Modulation should be higher even for "newer" houses. I understood that the Modulation is used by the compressor to quickly start and maintain the optimal temperature and the RPMs of the compressor are adjusted automatically and not running at full speed if the house demands a small increase in heating. Also, another question is, by default DeltaT is set to 5. I understand that it is the difference between leaving water and incoming water back to the heat exchange plate, but what should happen if we set it to 1 or 2 or higher than 5 ?

Thank you.

[orionuk]

We moved into a new build house that has a Daikin Altherma hybrid heating system - so we have both a gas boiler and a 4kW heat pump. The Daikin controller, which is an older version of this one, has all these settings as well. When we first moved in (and after I got my head around it) I found the curve was set by the builder to 35 - 55 on the Tt (Y axis) and -5 to +15 on the Ta (x axis). I later discovered that my neighbours all have different settings despite the same system - the consistency of install has been very poor so I have no idea what the 'design' range is meant to be. I tended to find the air pump module barely ever did anything initially on colder days when the system was trying to heat the radiators to 50C+. I eventually fitted a Netatmo smart thermostat and radiator valves and then started experimenting with the 'fixed' mode. I discovered that at 45C, even on a cold day of -5C, this was still enough heat in the radiators to heat the house at a reasonable rate. So I initially set the weather dependant curve Tt at 35C to 45C. With the aid of the smart valves, I found the heat pump module was now contributing more (with the gas boiler off). As the weather has got milder though, the system has started heating the radiators to less than 40C (as per the curve settings), and I've found this just isn't hot enough to heat the house at anything other than a crawl. I've since set my Tt to a very narrow range of 40 to 45C and this appears to be working well. I'd none the less be interested too know your (or anyone else's) thoughts on this one.

[anthonydyer]

How do you get that video screenshot of the control display? I want that when it comes to reviewing my newly installed Daikin system.

[gavthegas]

That was fantastic I learnt so much.
Is there any way for the unit to maximise time of use tariffs?

[JeremyChallinor]

My main Madoka thermostat is in the hall, where the design temperature was 18 degrees (in actual fact the radiators in the hall/landing could easily deliver 21 degrees if required). When you mention about setting the flow temperature on the weather curve based on achieving 21 degrees when the temperature outside is zero, do you mean only in rooms that were designed to be at 21 degrees? I have the thermostat in the hall set at 19 degrees and the TRV in the hall set to deliver this temperature because a) that is a comfortable temperature for a hall (it isn't a living room that you sit in) and b) I assumed, possibly incorrectly, that I would save money. If my hall has radiators sized to deliver 21 degrees, would I be better setting my thermostat in that room to 21 degrees because house temperature will be more even and would I expect to achieve a better COP? The living rooms do achieve 21 degrees with this current setup, albeit slowly after a 2 degree setback temperature at night.

[briangkehoe]

Can you do this for the Samsung Gen 6 also?

[glightsolutions]

Great video. We usually get customers to turn up the stats to max in living spaces and then try find lowest slope-offset setting. Easier for customer to adjust slope number than 4 point curve. Like the heat curve on a Nibe. Nice and simples

[Lawrenceof]

Regarding schedule controls, the app on smart phone for Daikin HP is easier & more accessible to customise. You can also tweak current basic settings, it’s pretty good. It won’t do everything the main controller can be great for average user/owner.

[martinwallis]

My MMI doesn’t have half of these options. Have they been removed since this video was made, or are they only shown in installer mode?

[oubelhaNegra]

If you had photovoltaic panels and produced energy during the day, would you still use the same settings or change them in some way? For example, using fixed instead of weather dependent? thanks

[romanpajak]

Glad you have done a Daikin video and its great, I still am struggling to optimise mine because I have a buffer tank so need a secondary pump and the moloko controller won't work with this set up as there is no way to turn the secondary pump on when the heat pump is running. I currently have a Hive which turns the heat pump on and the secondary pump but this thermostat is on/off and can't be efficient. So looking for an alternative, If I run the secondary pump constantly and use the weather comp and keep tweaking it may this be the best way?