Using ceiling mount PIR timers offers a highly cost-effective way of reducing wasted electricity in the school/college environment.
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| PIR For Toilets |
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In fact a very simple area to look at in a school or college is the toilets as the lights are generally switched on by cleaners in a morning and left on all day. A typical example is shown below.
Typical Toilet 4 lights with 2x40watt tubes in each
Switched on at 7am switched off 5pm
Number of days in a year 185
Power usage in 12 months = 608Kwh
Cost per year = £60.80
So by using ceiling mount PIR’s that are easy to install into existing buildings or new build schemes, an energy saving can be shown
After a Ceiling mounted PIR is fitted
Power usage in 12 months 152Kwh
Cost per year £15.20
Potential Annual Saving £45.60
From this simple example it can be seen that using PIR’s can help reduce costs significantly.
So Electronic ceiling mount PIR timers eliminate the need for a light switch, providing instant energy saving. They are fully automatic device which controls various power loads by means of a passive infra red movement sensor. Most units have detection areas of approximately 7 metres and some will even switch up to 16amp, which allows them to be used to switch lighting, heating, ventilation or air conditioning loads.
Other features included on some of these devices include Lux level adjustment stopping lights coming on when the ambient light is of a sufficiently high level not to need the lights on. Plus being able to time them so that the lights can be set to switch of after a set period of time without detection this makes them ideal for a variety of areas within a school or college that are only used in general for set periods of time.
So in normal operation these units are activated by the detection of moving body heat and once this is no longer detected it switches off the load once the set time period has elapsed. Should body heat be detected again during the timing period the sequence restarts. This makes products like these ideal for toilets, corridors, storerooms and even classrooms.
Further information on the extensive energymanagement range from Elkay is available at www.elkay.co.uk , or call 01675 468232.
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