Forums

Search with Wattson
Forums
Members
Crimson
Activity
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Crimson
@crimson
Member
Reputable Member
Joined: Jan 16, 2024
Last seen: Jan 28, 2026
Profile Activity
Topics: 4 / Replies: 300
AllTopicsReplies
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

Just to be clear this won’t be a Grant LLH/combo volumiser. This will be a 4 port 80L max buffer/LLH. Due to space limitations. They've made no mentio...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

So an update…   Installers insist a replacement 80 litre buffer tank/LLH is required. They’ve sent me a schematic, from Grant Install pack ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

I hope out of all of this that I can run the system at a much lower flow temp.   Checked back through endless mails on calcs and it looks lik...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

I’m looking at the diagram in the manual and nowhere is there a LLH, item 6 is a volumiser, on the return. No idea why they’re insisting on the LLH....

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

  It’s a 13kw Aerona3 (has 2 fans). Model: HPID13R32  

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

So Grant got back to me, and as suspected there’s no requirement for a LLH, but there is for a volumiser. They even said “volume is King”. I suspect t...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks both. I’ll push gor thr glycol, 5% is 5% i cant lose.   I think further back in the thread I have pictures of the pump room and pictur...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

I probably got that wrong, looks like the valve is for when a power outage happens?

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

  Thanks again JamesPa.   My memory is baffling at the moment but broadly I think the plumbers stated approx:   Front UFH zon...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks JamesPa, Sorry for my lack of understanding on terms/2 port v 4 port etc. Just unsure then why the installer insists on this LLH if the man...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

Not sure then, I’ve been reading the manual and it does state it needs a volumiser, and even suggests options for low volume systems (why they didn’t ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

A quick google states the Grant Aerona3 requires a low loss header as a mechanical break as part of Grant’s install package - I suspect they’re using ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Page 7 / 26
Share:

Join Us!

Worth Watching

Latest Posts

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security PRO
This Site Is Protected By
Shield Security PRO →