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soniks
@soniks
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Joined: Dec 11, 2022
Last seen: Mar 14, 2024
Profile Activity
Topics: 2 / Replies: 68
AllTopicsReplies
Reply
RE: 17kw Grant Aerona heat pump not performing

@derek-m You just reminded me I have a pizza oven thermometer which I can use In my lounge There are 4 radiators. I took the readings from ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@kev-m The thermometer is linked the Passiv system and you can see the temperature on the graph which is placed in the lounge. There is no other th...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@allyfish I went to the controller and these are the readings I see at the moment Circulating water return temperature - 32c Compre...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 17kw Grant Aerona heat pump not performing

@batalto They were balanced when the additional circulating pump was installed and even then the largest radiators just weren't getting hot. Does...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@derek-m See the graph below for usage in Oct when the unit shouldn't really be defrosting given outdoor temperatures are 7c+. It's not clear to m...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@allyfish thanks for your detailed response. I don't think the unit is undersized if anything we went for something slightly bigger than what the he...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@hughf do you know anyone knowledgeable who could do this and would it invalidate any Grant warranty? I think you are right though grant just treat i...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@derek-m Thanks for your response see below for responses to your questions. Heat loss attached Yes in weather compensating mode AFAIK 21c i...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

Addendum to my previous post. Also I wanted to ask if anyone else sees the sort of consumption pattern in the picture attached where the heat pump co...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
17kw Grant Aerona heat pump not performing
4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 160
Views: 81436
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