PRODUCT NEWS Hydrus AC – Specialist Climate
Whether it’s pool time or party time – with a moving floor pool, your environmental control system has to cope with both. Introducing the new Heatstar Hydrus AC – specialist climate control for moving floor pools.
Multi-use pool rooms are now an established solution to optimise space usage within a property. The new Hydrus AC is especially conceived to meet the markedly opposing environmental control demands of the room in different modes of use. The Hydrus AC has the capability to tackle the strenuous demands of a high temperature and moisture laden swimming pool room environment, whilst maintaining excellent energy efficiency, but the Hydrus AC also features in-built facilities necessary to accommodate an entirely different environmental requirement for the room, suitable for functions, parties and many other uses.
When the moving floor is open and the pool is in full use the room can be heated (or cooled) by the new Hydrus AC to the temperature required. In this mode, although the Hydrus AC’s control settings are fully variable, a comfortable 30/32˚C can easily be maintained. In addition, during pool mode, correct dehumidification is vital. The Hydrus AC offers room dehumidification with active heat recycling back to air or pool water. High rate fresh air dilution is also a key benefit along with extremely energy efficient pool water heating.
When the pool is not in use and the floor is closed the environmental control needs of the room are completely different. This is where the Hydrus AC is so adaptable. It is all about creating a comfortable environment for a wide variety of functions, parties and many other uses. The heating and cooling of the
The Hydrus AC is been especially designed for pools featuring a moving floor such as this stunning project from London Swimming Pool Company
room has to be very flexible and comfortable. Usually the room air in this mode is heated or cooled to between 21 and 23˚C. The Hydrus AC includes stale air extraction and pool water heating can be maintained in a highly energy efficient way whilst the floor is in enclosed mode.
During swimming pool mode, the room air is re-circulated through the Hydrus AC by the integral fan. Inside the unit the humid room air is passed through the cold
refrigerated coil matrix of the dehumidifying heat pump
where, upon contact, the excess humidity condenses to cold
water, thus the air is dehumidified
and de-energised prior to being returned back to the room and/or expelled to outside. The warm, moisture laden pool room air is rich in energy and the heat pump is able to absorb both ‘sensible’ (dry heat) and ‘latent’ (steam-like energy present within the airborne water vapour). This absorbed heat, together with all the electrical energy used to operate the dehumidifying heat pump, is then recycled back into either the room air OR the pool water. Active energy recycling efficiencies of up to 380% are possible through this process.
The Hydrus AC can provide cooling to the room utilising either the introduction of outside fresh air or, if the fresh air is too warm for the purpose, a refrigeration mechanical air cooling system. The Hydrus AC utilises a fresh air temperature sensor to automatically determine the optimum method depending upon prevailing conditions and chosen required temperature settings.
Control For Pools With Moving Floors
Priority is given to fresh air ‘free’ cooling when possible, being the preferred method for energy efficiency, prior to the refrigeration mechanical cooling system being activated. Air-cooling potential via refrigeration is notably compromised if there is appreciable residual humidity within the room. This is because much of the cooling power provided by the system could be taken up through inadvertently condensing moisture from the room air (‘latent’ cooling duty), as opposed to reducing the measurable air temperature (‘sensible’ cooling duty).
Prior to the refrigeration cooling activating, the Hydrus AC automatically initiates a brief period of room air exchange with drier fresh air in order to achieve a reduction in the moisture content of the room air, thereby reducing the cooling power lost to moisture condensing. The Hydrus AC always provides a modulated level of fresh air dilution to achieve an enhanced impression of freshness and to prevent any build-up of chemical odours. A slightly negative air pressure is also achieved to help prevent the room atmosphere migrating into adjoining areas or compromising vapour barriers. With the European Union Directive for ‘Energy Related Products’ now in force, the Hydrus AC is so energy efficient that, not only does it comply with the new directive, but it actually even exceeds the more stringent regulations proposed for the future. For more information contact Heatstar or visit their stand (E58) at SPATEX 2015 for the official launch of the Heatstar Hydrus AC.
Heatstar 01983 521 465
www.heatstar.com
www.swimmingpoolnews.co.uk SPN February 2015 29
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