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Gary
@gary
Member
Prominent Member
Joined: Feb 8, 2023
Last seen: Jul 4, 2025
Profile Activity
Topics: 2 / Replies: 348
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Reply
RE: Ecodan wont heat with mild outside temps

Hi, Your flow rate of 21L/min is fine, I would turn down the pump to 4 and recheck the flow rate, that will help with dT, you could probably dro...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installation queries for Grant Aerona

@iancalderbank that’s why I mentioned it as it didn’t seem that you under stood it correctly. You can be on Intelligent and fixed outgoing I’ve been...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installation queries for Grant Aerona

@iancalderbank I'm on Intelligent as well and have FIT from 2015 which had deemed export at 50% but only paid 6p/kwh, so I gave up my deemed export at...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin Altherma 3 ASHP and Evohome Controller

The cycling is probably due to different rooms calling for heat at different times so you have a very small amount of water being heated as only some ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Optimising ecodan ASHP

I think I’ve said it before but mine will cycle anything below 32C. The difference between flow temp and house temp is too small and your emitters ca...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Weather compensation and air source heat pumps

@sarah Hi this is because the flow temp for that room is too low, that’s why I suggested moving the curve up to +3 and see where it stabilises

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Weather compensation and air source heat pumps

@sarah on the front menu when your in WC mode you should see +\- symbols these adjust your set curve up and down. Rather than adjusting your curve yo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

So it’s about right How long do you run it for? Eg mine came on at 12pm today it’s been running for 6 hours at 33C and the temp downstairs has incr...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Weather compensation and air source heat pumps

So your flow and return are 34 and 32 outside is 4C if you go to 4C on your WC curve what should the temperature be? If that is 33 or 34 the heat pum...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Weather compensation and air source heat pumps

Yes you are correct but room temp is the temp of the location where that controller is. Is it currently heating hot water as flow and return aren’t ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

@sarah With the pump set to 5 the flow rate you are achieving is too low for the heat pump to be working correctly, it won't be transferring enough he...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

In the Eng menu there is a pump speed setting from 1 to 5. What is yours set to. If you increase it and go back to the running info what does the flo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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