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Gary
@gary
Member
Prominent Member
Joined: Feb 8, 2023
Last seen: Apr 19, 2025
Topics: 1 / Replies: 335
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RE: Ecodan 6kW - is it "cycling", or normal operation?

@clockworks if you could post the hourly temp plots rather than the last 24 hour ones they will have all the detail that should match your other plots

3 months ago
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RE: Ecodan flow rate tweak

I would give the Mitsubishi customer help line a call, the manual does say if you want to get max flow you will need to install an additional pump, se...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

If you post Melcloud graphs its worth clicking off all the other series you don't need, like set tank temp, this allows the plots to rescale to the da...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

If you want to use auto adapt then you will either need to get the main controller sited somewhere where it can get a good temperature reading or as ...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

With your increased curve and increased OAT (outside ambient temp) it was still trying to run around 38C. Between 1.40 and 3.40 you have the same cy...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

@sunandair Clockwork means DT25 of the rads at design flow of 45C vs a room temp of 20C or thereabouts

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

@clockworks Higher flow temps will get less cycling but at the cost of efficiency and you will find then it will run for a couple of hours and then re...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

@clockworks I wouldn't change the flow temp yet, try and see if its any better at 38C if you drop the flow temp cycling is only going to get worse any...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

The flow wasn't massively out, I'm no heating engineer but a heat pump needs constant flow, so the differential flow setting doesn't seem right and th...

3 months ago
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RE: Ecodan 6kW - is it "cycling", or normal operation?

Can you post a picture of your LLH how much volume does it have? What is the flow speed in your primary circuit, go to service menu, running informa...

3 months ago
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RE: hum/whine from Wilo circulation pump

You are correct primary is the top right from the heat pump, secondary pumps round the rads you can’t break anything by turning them down. Turn prim...

3 months ago
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