HEAT PUMP WATER HEATERS

NUOS FSFLOOR STANDING UNVENTED CYLINDERWITH INTEGRATED AIR SOURCE HEAT PUMP

Heating Hot water Renewables

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Eco-friendly home?With the Ariston NUOS now it can be

Energy Savings as StandardAs the World’s leading manufacturer of water heating equipment, Ariston continue to show their commitment to theresearch and development of both innovative and eco-friendly products with NUOS, the latest addition to their portfolio ofenergy efficient products.

A perfect choice for new build properties, as well as those off the gas grid, Ariston NUOS is the perfect alternative to aconventional electric hot water storage cylinder, in fact with a CoP* Co-efficient of Performance) of 3.7, NUOS is theperfect choice for those looking to reduce their carbon footprint, without having to compromise on their hot waterrequirements.

As the heat pump unit is combined with the cylinder, no F-Gas Qualifications are needed to install meaning an installeronly need G3 Qualifications to fit NUOS meaning it really is ‘Plug and Play’.* CoP is the measure of heat energy produced from every unit of energy consumed e.g. CoP of 3 = 3kW energy for every 1kW consumed.

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Eco-friendly home?With the Ariston NUOS now it can be

Working Principle1 - 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 begins returning to its original liquid state by condensing.

4 - The refrigerant fluid loses further pressure and temperature by passing through the expansion valve, completely returning to its original state.

NUOS, a philosophy of energy efficiencyand total peace of mind

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FLEXIBLEPROGRAMMING

With the NUOS heat pump waterheater, it is possible to set twowater draw off times.

By monitoring both the stored waterand the ambient air temperaturesNUOS will start automatically to ensure that the stored waterreaches the desired temperature atthe time set by the user.

ANTI-LEGIONNELLAFUNCTIONTo guarantee maximum safety andhygiene, NUOS heat pump waterheaters feature the anti-legionnellafunction.

This function regularly heats thecontents of the tank to 65°C inorder to pasteurise the storedwater.

GREENIf GREEN mode is selected, onlythe heat pump works, ensuringthe most efficient operation.

Max achievable temperaturein GREEN mode is 55°C.

AUTOIn Auto mode only the heat pumpworks. However, should the settemperature be higher than 55°C or the ambient air temperature below (0ºC) the heating element isactivated, in order to achieve themaximum energy saving and themaximum quantity of hot water.

Max temperature in AUTO modeis 65°C.

BOOSTIf BOOST mode is activated, the heatpump and heating element work at thesame time. This mode has to bemanually selected by the end userevery time hot water is required in asshort a time as possible.

Max temperature in BOOST modeis 65°C.

NUOS, a philosophy of energy efficiencyand total peace of mind

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LEGEND

1. Compressor

2. Fan

3. Evaporator

4. Hot Water Outlet

5. Cold Water Inlet

6. Electric Element (1kW +1.5kW)

7. Condenser

8. User Interface

9. Expansion Valve

1 2

9

3

7

4

56

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FLOOR STANDING DIRECT AIR SOURCE HEAT PUMP WATER HEATER

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NUOS

� CO-EFFICIENT OF PERFORMANCE (COP) 3.7

� ENVIRONMENTALLY SOUND ANDHIGHLY EFFICIENT THERMALINSULATION

� ALL PLUMBING AND ELECTRICALCONNECTIONS WITHIN A 45° ANGLE

� 3 MAGNESIUM ANODES TO PROTECTAGAINST CORROSION

� BACK-UP HEATING ELEMENT� FACTORY FITTED 1/2” T&P RELIEF VALVE

� UNVENTED CONTROL KIT SUPPLIEDWITH CYLINDER

� 5 YEAR TANK GUARANTEE (2 YEARGUARANTEE ON ELECTRICALCOMPONENTS)

� ‘PLUG AND PLAY’ - NO F-GAS QUALIFICATIONS NEEDED TO INSTALL

200 FS

Dimensions

ENVIRONMENTALLYFRIENDLY

INSULATION

ENERGYSAVING

ENAMELLEDSTEEL TANK

HIGHHIGHEFFICIENCYEFFICIENCYHIGH

EFFICIENCY

7

Technical DataNUOS FS 200

DESCRIPTIONTank Rated Capacity litres 200Footprint (minimum) mm 600 x 600Weight Empty kg 90Weight Full kg 290Minimum Ceiling Height metres 1.90

CYLINDERNormal Operating Pressure bar 3.5Maximum Water Supply Pressure bar 12Hot/Cold Water Connection 3/4” BSP - 22mmHeat Loss (@ 65ºC ) kW/h in 24hr 2.06Global Warming Potential (GWP) <5Ozone Depletion Potential (ODP) 0

HEAT PUMPHeat Rating* kW 2.775Power Consumption* kW 0.75CoP (Co-efficient of Performance)* 3.7Heating Time (∆T 45ºC)* mins 236Heating Energy Consumed* kW/h 2.2Maximum Water Temp (Heat Pump Only) ºC 55

REFRIGERANT FLUIDType of Fluid R134aQuantity kg 1.28Practical Limit for Room Volume** m3 5.12

ELECTRICAL DATAElectrical supply V/Hz 220-240/50Element Rating kW 1.5 + 1Protection grade of electrical system IP X4

AIRAir Flow Rate m3/h 300 - 500Available Static Pressure Loss Pa 70Sound Level @ 1m dB(A) 56Min. Temp of Room of Installation ºC 1Max. Temp of Room of Installation ºC 35Min. Volume of Room (non-ducted) m3 20Min. Air Temp Required (w.b.) @ 90% r.h. ºC -5Max. Air Temp Required (w.b.) @ 90% r.h. ºC 35

REHEAT TIME100% Capacity (Heat Pump Only) mins 23670% Capacity (Heat Pump Only) mins 181100% Capacity (Heat Pump & Element) mins 14070% Capacity (Heat Pump & Element) mins 114

Model CodeNUOS FS 200 3210041Unvented Kit 3069418Duct Kit (Inlet/Outlet) 320806190º Elbow 3208067Wall Fixing brackets (2) 3208068

AccessoriesAIR DUCT (Ø150mm) Code

1m Tube 32080631.5m Tube 3208064Joint 320806690º Elbow 3208067Fixiing brackets 32080681m Flexible Tube 3208069

* Tested in accordance with EN 255-3** The practical imit is the minimum room volume the appliance should be installed in, the volume is based on quantity of refrigerant in the system. In the event of a sudden release of refrigerant then the min. room volume will make it safer for the engineer.

FLOOR STANDING INDIRECT AIR SOURCE HEAT PUMP WATER HEATER

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NUOS

� CO-EFFICIENT OF PERFORMANCE (COP) 3.7

� ENVIRONMENTALLY SOUND ANDHIGHLY EFFICIENT THERMALINSULATION

� ALL PLUMBING AND ELECTRICALCONNECTIONS WITHIN A 45° ANGLE

� 3 MAGNESIUM ANODES TO PROTECTAGAINST CORROSION

� BACK-UP HEATING ELEMENT� FACTORY FITTED 1/2” T&P RELIEF VALVE

� UNVENTED CONTROL KIT SUPPLIEDWITH CYLINDER

� 5 YEAR TANK GUARANTEE (2 YEARGUARANTEE ON ELECTRICALCOMPONENTS)

� INDIRECT COIL FOR USE WITH SOLAR SYSTEMS OR GAS/OIL BOILERS

� ‘PLUG AND PLAY’ - NO F-GAS QUALIFICATIONS NEEDED TO INSTALL

FS 250i

Dimensions

5 5 yearguarantee

2 2 yearguarantee

25 25 yearguarantee

10 10 yearguarantee

ENVIRONMENTALLYFRIENDLY

INSULATION

ENERGY SAVING

ENAMELLEDSTEEL TANK

HIGHHIGHEFFICIENCYEFFICIENCYHIGH

EFFICIENCY

9

AccessoriesCode

AIR DUCT (Ø150mm)1m Tube 32080631.5m Tube 3208064Joint 320806690º Elbow 3208067Fixiing brackets 32080681m Flexible Tube 3208069

Technical DataNUOS FS 250i

DESCRIPTIONTank Rated Capacity litres 250Footprint (minimum) mm 600 x 600Weight Empty kg 110Weight Full kg 360Minimum Ceiling Height metres 2.10

CYLINDERNormal Operating Pressure bar 3.5Maximum Water Supply Pressure bar 12Hot/Cold Water Connection 3/4” BSP - 22mmHeat Loss (@ 65ºC ) kW/h in 24hr 2.40Global Warming Potential (GWP) <5Ozone Depletion Potential (ODP) 0

HEAT PUMPHeat Rating* kW 2.775Power Consumption* kW 0.75CoP (Co-efficient of Performance)* 3.7Heating Time (∆T 45ºC)* mins 302Heating Energy Consumed* kW/h 2.7Maximum Water Temp (Heat Pump Only) ºC 55

REFRIGERANT FLUIDType of Fluid R134aQuantity kg 1.28Practical Limit for Room Volume** m3 5.12

ELECTRICAL DATAElectrical supply V/Hz 220-240/50Element Rating kW 1.5 + 1Protection grade of electrical system IP X4

AIRAir Flow Rate m3/h 300 - 500Available Static Pressure Loss Pa 70Sound Level @ 1m dB(A) 56Min. Temp of Room of Installation ºC 1Max. Temp of Room of Installation ºC 35Min. Volume of Room (non-ducted) m3 20Min. Air Temp Required (w.b.) @ 90% r.h. ºC -5Max. Air Temp Required (w.b.) @ 90% r.h. ºC 35

REHEAT TIME100% Capacity (Heat Pump Only - ∆T 45ºC) mins 30270% Capacity (Heat Pump Only - ∆T 45ºC) mins 231100% Capacity ((Heat Pump & Element - ∆T 45ºC) mins 19470% Capacity (Heat Pump & Element - ∆T 45ºC) mins 137

Model CodeNUOS FS 250i 3210042Unvented Kit 3069419Duct Kit (Inlet/Outlet) 320806190º Elbow 3208067Wall Fixing brackets (2) 3208068

* Tested in accordance with EN 255-3** The practical imit is the minimum room volume the appliance should be installed in, the volume is based on quantity of refrigerant in the system. In the event of a sudden release of refrigerant then the min. room volume will make it safer for the engineer.

SOLAR COLLECTORS

HIGHLY ABSORBENT

ROCKWOOLINSULATION

Tcollector liquid average-Tambient /G K/(W/m2)

0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

Solar Collector Yield Curve

Effic

ienc

y

HIGHDURABILITY

CORROSIONRESISTANT

TESTEDAGAINST

HAIL STONES

SOLARKEYMARK

SOLAR COLLECTORCF 2.0

Weight when empty Kg 35.6Working pressure bar 6Collector tube diameter mm 18Collector liquid capacity l 1.02Absorption % 95Reflection % 5Aperture area m^2 1.82Absorbent area m^2 1.74η0 0.738*k1 W/m^2K 4.0*k2 W/m^2K^2 0.012*T stagnation °C 161.6

* Data refers to the aperture area

SOLAR COLLECTORS

� TOTAL SURFACE AREA 2M2

� CAPTIVE SURFACE AREA 1.8M2

� FRAME: GREY ANODISED ALUMINIUM

� INSULATION: 50MM ROCKWOOL

� SPECIAL SOLAR GLASS – HIGHTRANSPARENCY, TEMPERED, ANTIREFLECTIVE AND PRISMATIC

� LOW MOUNTING PROFILE

� EN12975 APPROVED

� 5 YEAR GUARANTEE

� ABSORBER PLATE: HIGH GRADECOPPER WITH TINOX TITANIUMCOATING

CF 2.0

Technical data - Overall dimensions

5 5 yearguarantee

2 2 yearguarantee

25 25 yearguarantee

10 10 yearguarantee

10

Notes

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In th

e interests of our customers, Aris

ton Th

ermo UK Ltd is con

tinua

lly developing these products to

improve both perform

ance and

design. W

e therefore

reserve the rig

ht to

cha

nge specificatio

n with

out p

rior no

tice. This brochu

re is accurate at th

e date of p

rintin

g. Con

sumer statutory rights are no

t affe

cted.

WA 120 LG

B -Mar ‘12- Printed by Vario Press

Ariston Thermo UK LtdAriston BuildingHughenden AvenueHigh WycombeBucks HP13 5FT

Fax 01494 459775

Technical Advice & Customer ServiceFax 01494 463066technical.uk@aristonthermo.comcustomer.service.uk@aristonthermo.cominfo.uk@aristonthermo.com

www.ariston.co.uk

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