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RobS
@robs
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Joined: Oct 15, 2024
Last seen: Jul 26, 2026
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Topics: 0 / Replies: 135
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RE: Mitsubishi Ecodan FTC6 settings

While @F1p's dongles are great, the FTC can do this itself. It's called Summer Mode and can be found in the Service settings (default password is 0000...

2 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Yes, also the higher OAT end is possibly a smidge high too.   Also that experiments often need repetition to incorporate discoveries. &n...

2 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Sorry that was less for you and more for others that have suggested that your findings provide a general proof of setbacks saving energy/money. &nbs...

2 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

TBH I'm not sure saving energy has been proven yet (see below) but maybe in your data there is proof. As always there is an n=1 aspect to this, it mig...

2 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Hi @cathoderay Thanks for the analysis! This last graph possibly shows the reason for the reduced energy usage at lower OATs. The no setback IAT is...

2 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi ecodan settings

As the owner of a 8kW Ecodan R290 maybe I can help. While we don't use it, and just use weather compensation, I believe the Auto Adapt mode can do ...

3 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Mitsubishi Ecodan not good enough ?

We've had an Ecodan R290 for 18 months and it's been reliable and efficient (SCOP of 4.8+). The Vaillant spec says the Aerotherm Plus is 450mm deep...

3 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

I answered that days back, I even provided a summary of my answer (reproduced below).   So the two similar days with setbacks would be expect...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

I changed the pump power to the actual value to see if the energy consumption estimate improved but it is still woefully inaccurate. As I have an accu...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

I posted an image from the FTC6 installer manual that clearly shows per pump power settings (like our FTC7) and a perfectly reasonable assumption of "...

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Advice needed after a successful "leftfield" experiment.....

@pauli For the conventional approach, have you considered the 4kW Grant R290 heat pump? The specs say that it can modulate down to 1.25kW output (s...

5 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

The answer was in two parts in my reply, the second part that also answered some of your other points was: "If you effectively eliminate the over re...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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