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fosterl2
@fosterl2
Member
Eminent Member
Joined: Feb 2, 2026
Last seen: Nov 12, 2026
Topics: 2 / Replies: 19
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RE: Buffer tank on a 2 x 14kw Ecodan system

@JamesPa WRT the DHW: I am happy that is working OK and the heat loss is acceptable. The circulation pump runs so that there is always hot water at th...

1 day ago
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RE: Buffer tank on a 2 x 14kw Ecodan system

@bobflux Yes, the motorised 3-way valve is for DHW. See schematic below – I thought it was worth doing a decent one for you good people helping, and f...

2 days ago
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RE: Buffer tank on a 2 x 14kw Ecodan system

This is the energy consumed since September... ...throughout the period, the pool has been heated to the same 29c.

2 days ago
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RE: Buffer tank on a 2 x 14kw Ecodan system

Here is the tank labelled up, and it is a 45lt tank, so I think no stratification is possible. Yes, the pool is being heated to 29c with a thermal...

2 days ago
Topic
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

The next challenge will be getting 60mCu of water warmed up! - I assume for the initial heating, take the weather compensation off, fix both flow temp...

9 months ago
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

@f1p Indeed - I am just waiting to see if I get sent a bill for removing the cascade, but intend to either ask for a refund, or a return of my propert...

9 months ago
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

The issue seems to be solved: I found that the plumbers had routed the flow return from ASHP1 into the flow return of ASHP2, hence the whole system wa...

9 months ago
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

@f1p Just checked again (with different glasses on!) and they are sliders, not rockers, and set correctly. Looks like separating the cascade will be...

9 months ago
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

I am pretty sure that on mine, they are set the other way - the ones that are supposed to be ON have the sticking up bit up at ON side, and are presse...

9 months ago
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

So, if the rocker is down at the ON side and up on the OFF side, it is ON? Yes I do have Home Assistant, but it is using the MELCloud integration to...

9 months ago
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RE: Ecodan Cascade System Problem: DHW Heating Stops UFH & Pool Output

I looked at the dip switches on the FTC 7s today. On my units, they are tiny rocker switches, rather than slide up / down. Is the dip switch "on" when...

9 months ago
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