NUOS-Application stories
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Heating Hot water Renewables APPLICATION STORIES NUOS - HEAT PUMP WATER HEATERS

NUOS, a philosophy of energy and total peace of mind Expansion valve Refrigerant fluid HEAT TRANSFER Refrigerant fluid ELECTRICAL ENERGY Working Principle 1 - The refrigerant fluid crosses the evaporator and absorbs the heat from the air drawn in by the fan. This process ensures that the refrigerant changes phase by evaporating. 2 - The compressor increases the pressure of the refrigerant gas which causes it to increase in temperature. 3 - Inside the condenser, the refrigerant gas passes its heat to the water contained inside the cylinder. This exchange process ensures that the refrigerant...

FLEXIBLE PROGRAMMING If GREEN mode is selected, only the heat pump works, ensuring the most efficient operation. ANTI-LEGIONELLA FUNCTION If BOOST mode is activated, the heat pump and heating element work at the same time. This mode has to be manually selected by the end user every time hot water is required in as short a time as possible. With the NUOS heat pump water heater, it is possible to set two water draw off times. By monitoring both the stored water and the ambient air temperatures NUOS will start automatically to ensure that the stored water reaches the desired temperature at the...

Hot Water Outlet Cold Water Inlet Electric Element (1kW +1.5kW) Condenser User Interface Expansion Valve

Shaftesbury, Dorset 3 Bedroom, Terraced house An Ariston NUOS 250i heat pump water heater has been installed as part of a refurbishment project at the three-bedroom terraced house of a Shaftesbury resident in North Dorset. The property is located in the picturesque area of Gold Hill, which is renowned as the location of the Hovis bread commercials. The installation, which was completed in February 2013, was managed by Dorset Energy Solutions. The original hot water cylinder was replaced by the NUOS heat pump water heater for use alongside a solar PV system, which would provide the...

Dumbarton The Glencairn, Public House An Ariston NUOS FS 200 heat pump water heater has been installed to cater for the hot water demands of The Glencairn pub and restaurant in Dumbarton, Scotland, following a consultation between its owners and local plumbing and heating company Alternagas Ltd. “These savings, in addition to solving the water delivery issues and legionella compliance, have made the NUOS a first class answer to the water heating problem.” John Lavery, Alternagas Limited The decision to fit the NUOS arose after Alternagas Ltd’s Director, John Lavery, set up an energy monitor...

Aldershot 12 newly built, apartments 12 newly built, one-bedroom apartments in Aldershot have each been fitted with an Ariston NUOS FS250i floor-standing air source heat pump water heater. “We needed to ensure that the new properties would benefit from getting 10% of their energy from a renewable source.” Phil Davey, Davey Developments The products have been installed to ensure carbon emissions are reduced by a minimum of 10% through the provision of onsite renewable energy, in accordance with Level 3 of the Code for Sustainable Homes. Commenting on the specification of the NUOS units, Phil...

Glasgow Waterside Playing Fields Four Ariston NUOS 250 heat pump water heaters have been installed inside the newlybuilt modular sports changing rooms at Waterside Playing Fields in Glasgow. The floor-standing units were selected to enable the premises in meeting the Simplified Building Energy Model (SBEM) calculations, in accordance with Part L2 of the Building Regulations. The installation, which was completed in October 2012, was undertaken by Bridlingtonbased heating engineers Tony Howarth Plumbing & Heating, which also built and codesigned the sports changing rooms with Ideal Building...

Barnsley Just Renewables Limited Barnsley-based renewables installer Just Renewables Ltd is practising what it preaches, having recently installed a fully operational Ariston NUOS floor standing unvented cylinder with integrated air source heat pump water heater at its Wakefield Road showroom. The NUOS has been fitted to the heating system along with two Ariston solar thermal panels, while a monitoring device simultaneously records how much energy is being saved. The fully functional display is available for heating installers to study and interact with, enabling them to learn more about...

FLOOR STANDING DIRECT AIR SOURCE HEAT PUMP WATER HEATER COP 3.7 @ 20ºC (EN 255-3) ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 45° ANGLE ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION 3 MAGNESIUM ANODES TO PROTECT AGAINST CORROSION HIGH EFFICIENCY ENAMELLED STEEL TANK ENERGY SAVING ENVIRONMENTALLY FRIENDLY INSULATION FACTORY FITTED 1/2” T&P RELIEF VALVE BACK-UP HEATING ELEMENT (1 + 1.5kW) 750W COMPRESSOR (HEAT PUMP) ‘PLUG AND PLAY’ - NO F-GAS QUALIFICATIONS NEEDED TO INSTALL 5 YEAR TANK GUARANTEE (2 YEAR GUARANTEE ON ELECTRICAL COMPONENTS)

Technical Data DESCRIPTION Tank Rated Capacity Footprint (minimum) Weight Empty Weight Full Minimum Ceiling Height CYLINDER Normal Operating Pressure Maximum Water Supply Pressure Hot/Cold Water Connection Heat Loss (@ 65ºC ) Global Warming Potential (GWP) Ozone Depletion Potential (ODP) HEAT PUMP Heat Rating* Power Consumption* CoP in accordance with EN 255-3 (air temp. 20ºC) CoP in accordance with EN 16147 Heating Time (∆T 45ºC)* Heating Energy Consumed* Maximum Water Temp (Heat Pump Only) REFRIGERANT FLUID Type of Fluid Quantity Practical Limit for Room Volume** ELECTRICAL DATA...

FLOOR STANDING INDIRECT AIR SOURCE HEAT PUMP WATER HEATER COP 3.7 @ 20ºC (EN 255-3) ALL PLUMBING AND ELECTRICAL CONNECTIONS WITHIN A 45° ANGLE ENVIRONMENTALLY SOUND AND HIGHLY EFFICIENT THERMAL INSULATION 3 MAGNESIUM ANODES TO PROTECT AGAINST CORROSION HIGH EFFICIENCY ENAMELLED STEEL TANK ENERGY SAVING ENVIRONMENTALLY FRIENDLY INSULATION FACTORY FITTED 1/2” T&P RELIEF VALVE BACK-UP HEATING ELEMENT (1 + 1.5kW) 750W COMPRESSOR (HEAT PUMP) INDIRECT COIL FOR USE WITH SOLAR SYSTEMS OR GAS/OIL BOILER ‘PLUG AND PLAY’ - NO F-GAS QUALIFICATIONS NEEDED TO INSTALL 5 YEAR TANK GUARANTEE (2 YEAR...