6kW Viessmann Heat Pump Installation – Video
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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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
@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 did you email me? Didn’t receive anything if you did. DM me if you’d prefer.
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