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the Energex Whole House system is designed to run continuously on low speed and when required can be switched to high speed via any of three switch live terminals provided. These switch lives can be sourced from room light switched or from a dedicated boost switch. There is an overrun timber built into the control that keeps the fans running at high speed for a pre-set time after the operating boost switch has been turned off ( the timer is adjustable).
When the system is installed in a dwelling larger than the size that can be complied with under Building Regulation, alternative approach B.R.E Digest 398. The overrun timer facility will then ensure compliance with Building Regulations as detailed in Document F1 in relation to bathroom/toilets. In these circumstances separate Kitchen Ventilation must be provided.
When the Energex Whole House System is in operation the warm stale air is drawn from the dwelling, usually from bathrooms, toilets, en-suites, kitchens. (Kitchen extraction requires filtration). When the stale air enters the Energex Whole House unit it passes through the extraction filter. This helps to keep the extractor fan and heat exchange matrix clean.
The fresh air enters the Energex Whole House unit via the fresh air inlet grille/manifold and passes through the inlet filter so that much of the airborne dust and pollen can be removed. The stale and fresh air then pass through the heat exchange matrix where an amount of heat from the stale air is transferred to the incoming fresh air. The fresh air is then ducted into the dwelling and the stale air is discharged to the outside. |
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