Tag: SIR 022

  • SECURE SIR 020/021/022 Countdown Timer Instruction Manual

    SECURE SIR 020/021/022 Countdown Timer Instruction Manual

    SIR 020 / SIR 021 / SIR 022Countdown Timer Installation and User Instructions SIR 020 / SIR 021 / SIR 022The SIR range of countdown timers can be used to control immersion elements and other electrical appliances up to 3kW or as an override/extension timer for central heating systems.INSTALLATION AND CONNECTION SHOULD ONLY BE CARRIED…