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vaillant arotherm

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    Vaillant AroTherm ASHP Installation Tips

    Hi All, I am curious to know if anyone can protect with some information related to the Vaillant AroTherm plus VWZ AI controller? Does anyone have any suggestions to improve performance here??? EG: I noticed that the DHW pump speed is set to 100% by default. Is this necessary??? Has anyone...
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    Vaillant AroTherm 7kw ASHP controller and Immersion Heater?

    Hi All, I am currently installing a Vaillant AroTherm Plus 7kw Heat pump with a custom built cylinder. Can anyone tell me where I connect the immersion heater??? I have had a look at Vaillants schematics and it’s not clear to me? I am also a little unsure about the secondary circulation pump...
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    Vaillant Controls Expert for AroTherm Plus

    Hi All, I was wondering if someone can explain to me how you wire up a Vaillant AroTherm Plus with a SensoNET 921 and sensoComfort 720F/2. I just purchased an accessory for the SensoNET 921 that is used instead of a mains plug adapter. (See image below) As referred to in the SensoNet manual...
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    Shortening a Flex Stainless Steel Pipe for ASHP?

    Hi Everyone, I was wondering if anyone knows of a way to shorten a flexible stainless steel flex hose for a Vaillant ASHP? I have previously purchased flex connection hoses from Vaillant that could be shortened using a circlip, but it would appear that they have changed their manufacturing...
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