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davidm06
@davidm06
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Joined: Jan 19, 2025
Last seen: Oct 18, 2025
Profile Activity
Topics: 3 / Replies: 16
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Reply
RE: Weather compensation climatic heat curves

@jamespa many thanks. will do

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation climatic heat curves

@jamespa thanks for the advice. If I am tweaking the curve for low temps, should I first increase the Maximum outgoing water temperature in Heating mo...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@grantmethestrength I'd be interested to hear more about your Wavesure Modbus to ethernet adapter install. I can provide my email if you don't want to...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 with Octopus Cosy tariff

@grantmethestrength 2101 is irrelevant is it not if the WC is on (2100)? On an aside, it sounds like you had a better installer. Have you been told ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 with Octopus Cosy tariff

We have a Grant Aerona3 as well. We are not on Octopus Cosy as I am still learning the system and am not sure if it is better to warm the house on the...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@damonc interesting! It all depends on your house I reckon. If your insulation is not wonderful as ours isn't, 2C might be reached too quickly and if ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Winter climatic curves v Spring/Autumn climatic curves
1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 1
Views: 820
Reply
RE: Weather compensation climatic heat curves

I realise now that this hysterisis setting is controlling when the heating comes on e.g. Heating : Outgoing water temp ≥ Water set point (parameter 21...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@damonc If we are talking about a Grant Aerona3, 2141 is not the frost protection hysterisis - those settings are in group 43. 2141 controls when the ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation climatic heat curves

There is one other setting in the Grant heat curve group which is the Hysteresis of water set point in heating and the default is 8C. Am I right that...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation climatic heat curves

Many thanks for that advice. I did think it was a bit crazy. The previous owners would not made these settings as they were in their 80s.... I have ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Weather compensation climatic heat curves
1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 8
Views: 1302
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