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MikeFl
MikeFl
@mikefl
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Reputable Member
Joined: Apr 17, 2023
Last seen: Sep 10, 2025
Profile Activity
Topics: 1 / Replies: 118
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RE: Setting different temperatures throughout the day. Good idea for ASHP?

The standard advice is to only vary settings by a maximum of 2C throughout the day e.g. 20C when you're at home, 18C overnight, and 19C during daytime...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help needed with Grant Aerona ASHP

I have a Grant, and the DHW timer sounds similar to yours (they are less than user-friendly), but you can check what the HP is trying to do by looking...

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

It's being varied by the controller's WC - see below where I've just shown the 'Target LWT' vs OAT (and compressor freq) for that same time period; th...

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

I suspect that different heat pumps employ different strategies to control their output, as I do see a spike on my Grant (most times) when it starts u...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New System through ECO 4

Hi, My Grant Aerona was installed under the ECO4 scheme by Eco Providers Ltd (assume they are the same - in Lancashire), and they did an 'okay' job ...

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

Can you see the make/model of the programmer used to control the HW? Or can you upload a picture of it? I have a Timeguard 7-day 1 channel for my HW ...

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

-deleted-

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sorting out a Grant Aerona3 Install

That's quite an installation choice for the primary user controller. They didn't bother with any pipe insulation either I see. "When we say 'do...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sorting out a Grant Aerona3 Install

I didn't think the HP would work at all without the controller working. Maybe it has some default cycles that enable it to work to some extent? The ma...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world connection to a heat pump over modbus

Regarding hardware requirements, I'm using a Raspberry Pi with 2GB or RAM and a 64GB SD card (Pi's are becoming available again after recent supply is...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Build - Grant Aerona3 10kW - Questions and observations

@ggw This is a requirement of the Grant pump - Section 9.13 of the Installation Manual: "A flow regulator is supplied with the heat pump. This must be...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sorting out a Grant Aerona3 Install

I have a Grant Aerona, with EPH room thermostats. That is what is on your image #3, and the receiver is top left on the DHW cylinder in your image #2....

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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