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Clockworks
@clockworks
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Joined: Jan 22, 2025
Last seen: Apr 26, 2025
Profile Activity
Topics: 2 / Replies: 53
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RE: Ecodan Legionella cycle - immersion heater problem

Just to close this. Finally had the installer back last week to fit an immersion thermostat with a higher rating. As expected, no more rapid s...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

Rather than disconnecting the Evohome boiler relay, I've added a switch across the relay contacts. This way, I can either have it on continuously, or...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

The reason why the pumps were stopping is because the heating was switching off. The Evohome controller starts "modulating" the BDR91 boiler relay a...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

I'm struggling to understand the "logic" used by the FTC6 to run the compressor and pumps. Graphs from today, 8 degrees OAT, WC curve target is 40 d...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

After a week of using AA mode, I've switched back to pure Weather Compensation mode. I had a couple of instances when the house started to get too c...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

I left it in AA mode overnight, with the wireless remote set to a target temperature of 19.5, and with the Evohome TRVs limiting the temperature in mo...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

Count me reassured . I'll switch back to WC mode, and remove the wireless remote if necessary. I'm reasonably confident that once I've rep...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

I'm pretty sure that I am overthinking it. It's just that so many people say " low and slow, cycling is bad", etc. If by that, they actually mean "l...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

There is a setting for "room temp control interval", but I'm not sure if this just applies in AA mode for reading the wireless sensor, or whether it a...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

Just to clarify, the hallway is heated by a 600x1100 T21 radiator. It does leak a fair amount of heat up the stairs, and into the integral garage (o...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan 6kW - is it "cycling", or normal operation?

I don't think AA mode is going to work for me. The outside temperature dropped sharply overnight, from 8 degrees to 3 degrees in less than an ho...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan 6kW - is it "cycling", or normal operation?

Looks like I got it wrong. With it set to "Main RC", it seems to be using the temperature sensor in the wired controller, but the wired controller i...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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