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Description:

With rotating 24 hour dial, on and off tappets and slider switches for setting the programme, the 425 series are considered to be one of the simplest programmers to use and understand particularly where householders are used to and prefer a mechanical device. The range consists of three models, the Coronet single circuit timeswitch and the Tiara and Diadem two circuit programmers. The Diadem has indicator lights and the Tiara does not (for use with fully pumped systems).

Features and Benefits
    • Simple to use with easily understood settings adjustable in seconds
    • All control elements are visually accessible
    • Fewer call backs
    • Advance control to allow manual override switching ON or OFF
    • Allows the user to switch the heating off or on early without disturbing any existing setting 
    • 2 On / Off settings per 24 hours
    • Convenient morning and evening setting
    • Choice of programme settings
    • Allows the user to pre set a choice of programme
    • Easy to install, uses a 9 pin standard backplate
    • Backward compatible with all previous 425 ranges 
    • Voltage free contacts
    • Coronet is suitable for use with combi boiler
    • Diadem and Tiara 6 Amp rated, Coronet 13 Amp rated 
    • Diadem and Tiara suitable for most types of wet domestic central heating
    • Coronet can be used for loads up to 3kW as well as conventional heating

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William Wilson Ltd, Registered number: SCO 14691. Registered office: Hareness Road, Altens Industrial Estate, Aberdeen. AB12 3QA

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