Discuss Help me understanding my heating installation and replacement in the Central Heating Forum area at PlumbersForums.net
Okay, we are on the same page, phew.UFH4 is 240v signal - fine for Nest. UFH8 and UFH8 RF (albeit this in hidden in the RF version) is 12v signal.
UFH4 is 240v signal - fine for Nest. UFH8 and UFH8 RF (albeit this in hidden in the RF version) is 12v signal.
If I got it right all the way the UFH8 is switching at 12V on the board but activate the actuators using 240V. It must have been simpler to use 12V as it's done remotely / internally.So to clarify for my own piece of mind the UFH4 switches 230 from stat to actuators but UFH8 and RF switches 12 to and from stat and to actuators?
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