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    Switchmaster Sonata HW/CH Controller (Programmable Timer)

    Can anyone supply a copy of the Switchmaster Sonata User Guide, or the name of the manufacturer. I thought it was ACL-Drayton, but their tech support had no record if it. Best Regards, Zenco
  2. Z

    Central heating controller switching status by itself

    I know it is 9 years ago that you posted a query on this CH controller, but I am searching for a copy of the user guide, and wondered if you might be able to help. Best Regards, Zenco
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