Earthcare: Envirofresh Air Handling Units

Concept
Any occupied space requires the correct quantity of outside air to displace any stale air and create a fresh environment. By utilizing heat pump technology and heat recovery, Earthcare Air Handling Units (EAHU) provide a cost effective way of installing a 100% outside air system with balanced extract. With heat recovery it is possible to increase the temperature of the fresh air towards the indoor air conditions, reducing the heating costs by 50%.
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Existing ventilation standards do not guarantee good air quality in air conditioned buildings. For this reason, Earthcare ensures that it takes all pollution sources, including occupants, the building itself, furnishings and carpeting into account when selecting and designing air handling units. The required ventilation is calculated based on the total indoor pollution load, the available outdoor air quality and the level of indoor air quality required. This frequently requires full fresh air systems to achieve the required air change rate.

	Applications
•	Create a no smoking area in a public house or restaurant by supplying fresh tempered air to the non-smoking or employee areas, recovering heat from the extracted smoking area.
•	Lecture theatres, meeting and function rooms.
•	Combine with other systems such as VRV and chilled water fan coils to provide tempered fresh air.
•	Where occupant fresh air requirement exceeds design cooling volume.
•	Available with volumes from 0.5m3/s to 7.0m3/s

System Options

TA :- Tempered air system
Supplies filtered outside air at room temperature throughout the year, independently controlled.

SHC :- Space heating and cooling
Complete control of the environmental temperature for the occupied area. Suitable for lecture theatres, pubs, meeting rooms and function rooms.

EAHU benefits

•	Fully factory tested systems, pre-wired complete with integral refrigeration components and all controls. Reduces site installation costs and time.
•	Component configuration maximises heat pump capacity and efficiency. Other separate external heat pumps reduce in capacity as the ambient temperature falls. By placing the heat pump internally in the room exhaust air path, the EAHU eliminates loss of capacity at low ambient temperature levels.
•	Lower external noise levels.
•	Energy saving heat recovery system
•	No external condensing units.

	Earthcare Products • 46 Queen Anne’s Gate • London • SW1H 9AU
	Tel: +44 (0)20 7960 7916 • Fax: +44 (0)20 7222 7536

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