wasn't sure whether it made any difference if the temperature was selected at 18 or 28 as I expected to forget to turn it up before I got out at nightD4 2010 HSE Santorini Black
D3 2005 SE Java Black - p/x to D4
D2 2001 GS - p/x to D3
D1 1998 - p/x to D2
From what I understand but happy to be corrected it uses the internal and exterior temp sensors , inside lower than out = heat , higher = swap air Altox GSM FBH controller thread
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31st Oct 2015 2:43 pm
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
No its not that sophisticated. It's simply if outside is below a certain temperature heat, if above vent. I think the changeover temp is 16 deg C but happy to be corrected.
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