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6kW Viessmann Heat Pump Installation – Video

 
Air Source Heat Pumps (ASHPs)
Last Post by Mars 2 years ago
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4694
Topic starter 06/04/2024 4:22 pm   [#1474]

Damon Blakemore from Blakemore Plumbing Heating Renewables provides a walkthrough of a 6kW Viessmann Vitocal 150-A heat pump installation, and covers various aspects of the installation. There's a bit of wind at the beginning, but it's a semi-detached property.

I was pretty sure he says that there's an isolation for the buffer. @damon, is there a buffer tank?

 

This video is not sponsored by Evian 😀 


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 Damon Blakemore
(@damon)
Eminent Member Member Professional Installer
Joined: 2 years ago
Posts: 17
06/04/2024 7:22 pm  

Sorry about the wind and the Evian! 

 

There is a buffer yes but it's got a unique feature. Its a defrost buffer not a buffer we would use for hydraulic separation.

When the Heatpump knows a defrost is coming it moves the 3/4 way valve and loads the 16l buffer to 65ºC, it then uses this water to defrost the buffer, thew whole process tales around 7/8 minutes and removes no heat from the house like normal direct system would. it also does defrosts at a much lower rate of operation compared to a Vaillant for example, where as there `Vaillant was once every 40 mins or so the Viessmann unit was once every 2 hours.

Next time im in front of one ill do a video on the buffer to show what it dsoesn and how it operates, its a really good designed bit of kit.


Professional heat pump installer: Blakemore Renewables


   
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Mars
 Mars
(@editor)
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Posts: 4694
Topic starter 06/04/2024 8:50 pm  

@damon no problem about the wind… it’s a nightmare filming outside. Thanks for the explanation about the buffer - not sure if I’ve heard about a defrost buffer before. Sounds interesting.


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Abernyte
 Abernyte
(@abernyte)
Reputable Member Member
Joined: 3 years ago
Posts: 262
07/04/2024 12:15 pm  

@Mars Suggest you check your email urgently.



   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 4694
Topic starter 07/04/2024 9:09 pm  

@abernyte did you email me? Didn’t receive anything if you did. DM me if you’d prefer.


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