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john.connett
@john-connett
Member
Eminent Member
110 kWhs
Joined: Aug 2, 2023
Last seen: Sep 3, 2023
Profile Activity
Topics: 2 / Replies: 9
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RE: Zehnder ComfoPost CW6 with ASHP?

I would like to know if they offer design advice and can recommend installers that might consider upgrading my existing system. There is a good supply...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Zehnder ComfoPost CW6 with ASHP?
11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 3
Views: 622
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

Oops! Wrong pump. I have been informed that we have Grundfoss UPM3 HYBRID 25-70 180 ACA pumps. Sorry for the confusion. According to UPM3 Installation...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

The Grundfoss UPS3 is a smart pump with a number of control modes, including three fixed speeds, proportional pressure and underfloor mode. PWM makes ...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

Looks like this may be it: Air to Water Heat Pump Systems Databook Vol. 5.3 R32 Download it as a PDF if you want to be able to search it. The buil...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

What is this large manual of which you speak? I've looked at the Installation Manuals for the FTC5 and FTC6. Both have circuit board illustrations tha...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP insulated pipe under/up through concrete beam & block floor?

The Viessmann branded pipe is 2x40x3.7 with an internal diameter of 32.6mm which is suggested for all of the Vitocal 200-A range (six models from 2.3...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP insulated pipe under/up through concrete beam & block floor?

Common sense is a good starting point but not a full solution. I suspect that a lightweight concrete floor block may lack the structural strength to m...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP insulated pipe under/up through concrete beam & block floor?

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP insulated pipe under/up through concrete beam & block floor?

Nominally, 6kW output. Linear distance would be around 4.5m outdoor, 7.5m under house not including bends up and down. Viessmann branded quattro con...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
ASHP insulated pipe under/up through concrete beam & block floor?
12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 11
Views: 995
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