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Horstmann Diadem 425 programmer

Product Code: 338940

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Product Description

The 425 Diadem is a twin circuit, hot water and central heating programmer, with indicator lights, has 16 programmes available for fully pumped systems, including independent programming of heating and hot water and 10 programmes for gravity HW / pumped CH systems. The Diadem is ideal for gravity systems and fully pumped systems with zone valves.

Product Features

  • Twin Circuit
  • Simple to use with easily understood settings adjusted in seconds
  • Easy to install using a nine pin backplate
  • Advance control to allow manual override ON or OFF
  • Programme options: ON, OFF, all day or auto.