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Duncan Mac
@duncan-mac
Contributor
Trusted Member
16 kWhs
Joined: Mar 7, 2021
Last seen: Sep 14, 2022
Profile Activity
Topics: 1 / Replies: 32
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Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m Hi Derek, just a wee query. Since I have Flow temperatures and outside temperatures at 2 min intervals, if I plot these on a graph, if th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m thank you sorry again for being such a pain.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m sorry I cant seem to see the attachment you mentioned

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m I do have a Vaillant aroTherm 45 liter buffer tank in the system . I have attached the Vaillant Schematic Drawing and I believe my s...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@kev-m Thanks for the info. I think you are confirming that I'm not being unrealistic to look for higher COP and SCOP. I still hope Vaillant will...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m this is my MCS spreadsheet. I completed this myself.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m I live in the South West of Scotland and originally I was repeated told that the heat curve should be 1.2, but recently as part of their i...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m I really hope I'm not putting you to any bother Derek. 1a) the COP via the Vaillant sensoApp is calculated by dividing the sum of Electr...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m I don't have thermostats but I do have a Vaillant sensoComfort which I believe acts as some kind of thermostat. It is used to set temperat...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@derek-m thanks for that. I'm pretty sure it is in "weather compensation mode "as it cuts out when outside temperature goes above 21degrees and its ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

Thanks for the info I will research further. From the information I am getting my system has never drawn more than 4kW at any time since the install. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

I am no Heating engineer but I think there are a number of things to consider here 1) the MCS Heat Loss calculation is for the entire house. I have ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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