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Replacing Worcester oil boiler with an ASHP

 
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Air Source Heat Pumps (ASHPs)
Last Post by Cliff-Arnold 3 months ago
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Mars
 Mars
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21/04/2021 9:29 am  

@julianc, that's brilliant. Big day ahead. Hope it all goes according to plan.

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JulianC
 JulianC
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Topic starter 21/04/2021 10:07 am  

Thanks Mars. I was joking with Ecobubl, they leave all the doors open, so the home is cold. And you are just grateful for any heat when they switch the ASHP on 😊

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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JulianC
 JulianC
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Topic starter 21/04/2021 9:19 pm  
C9519C01 945C 4BCC 9DBC 8CA318A8633E

Mixergy slimline 180L hot water tank installed. But not fully connected. There is an external heat exchange (not shown) for the ASHP. Can also integrate the solar PV. Still requires internet connection. And pipe insulation.

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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JulianC
 JulianC
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Topic starter 21/04/2021 9:22 pm  

External Daikin Altherma 3H HT installed. But still to be commissioned 

635CF756 B18C 4C20 8D6A 1B94BB5D137E

Looks good eh?  This is an 18kW unit. Single fan

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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 Kev M
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21/04/2021 9:53 pm  

Very nice!  Keep the updates coming.


   
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Mars
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21/04/2021 9:59 pm  

@julianc, that is very snazzy. Love the design. Can we get a size pic too when you get a chance?

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JulianC
 JulianC
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Topic starter 21/04/2021 10:38 pm  

Daikin Altherma 3H HT is 990mm high by 1270mm wide by 460mm deep or 0.578m3. Below the planning regs 0.6m3 limit. It is also one of the quietest ASHPs on the market with a sound pressure of 38 dBA at 3m. And uses R32 refrigerant - which is better for the environment. I have water only in the circuit between the external unit, internal unit and 27L buffer tank. 
More photos to follow as job progresses 

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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JulianC
 JulianC
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Topic starter 22/04/2021 8:24 pm  

And the fan behind the black grill

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Quite cool actually 

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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JulianC
 JulianC
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Topic starter 22/04/2021 8:32 pm  

Detail of the internals

7262786A B159 4EC4 AE67 5A8B8B985D80

We are all wired up. But the Daikin is not recognising the Mixergy tank at the moment. More work to do. And tidying up

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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JulianC
 JulianC
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Topic starter 23/04/2021 6:54 pm  

Ok, so 95% of work completed

4710E898 BA9B 4592 92EF CB950B1F5B2B

Outdoor unit all working 

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Indoor unit in the garage (above)

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Buffer tank and pump for around the radiators 

image

And finally the Mixergy tank in the airing cupboard  Note the insulated heat exchanger at the bottom and the control module at the top  Whilst the tank is heating, at the moment it is not from solar PV or the ASHP  Mixergy sent the wrong component for the Daikin  So my engineer will be back Wednesday to fix  Can still schedule and control Mixergy thru the app  

So now we just need to learn how to use it  Interestingly, the recommendation is to treat it like a boiler and schedule it to come on, rather than on all the time  

Time will tell  Happy to answer any questions 

 

 

Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger


   
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 Kev M
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23/04/2021 8:35 pm  

Looks like a nice job @julianc.  We schedule our heating to come on and off using the zone thermostats. This works OK and the house seems to warm up quickly enough.    


   
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Mars
 Mars
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23/04/2021 9:56 pm  

@julianc, it all looks terrific. Hopefully we'll have a few coolish evenings to see how your system copes, and which will help set a baseline for performance. How exciting.

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
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