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Ariston NUOS standing


The heat pump water heaters Ariston NUOS standing provide domestic hot water by a heat pump that heats a kettle, with a monobloc system.

The heat pump mainly uses the outside air as a renewable energy source to achieve maximum energy efficiency and high energy savings.

Ariston NUOS a stand is available as 200 and 250 liters of volume of the kettle and the main features are:

  • Eligible outside air temperatures from -5 to 42 ° C
  • Ecological gas R134A to heat water up to 62 ° C
  • Model 250 (SYS) with coil for integration with solar thermal or boilers, …
  • Low noise fan
  • Additional electric heater dual power
  • LCD display

Operating mode: green, car, boost, boost 2

The operation of the heat pump water heaters Ariston NUOS standing is based on the thermodynamic cycle of the heat pumps which allows to heat the hot water stored in the tank through the energy of the outside air is sucked from the ducted pipe or directly from local.

The ecological gas R134A, using status changes due to compression and expansion cycles, draws its energy from the outdoor air and transfers it to the sanitary water stored in the tank.

The electrical energy required by the water heater in the heat pump is only that required to operate the fan and one for powering the compressor (which allows the movement of gas R134A). In the case of the electric heaters are activated necessity which ensure domestic hot water production.

The main features are:

  • Ecological gas R134A order to heat the sanitary water up to 62°C only with the use of the heat pump
  • Eligible outside air temperatures from -5 to 42 ° C
  • COP EN 16147 = 2,59 200; 2.79 mod. 250-250 (SYS)
  • Electrical power consumption mean = 750 W
    compact product by weight = 90 kg mod. 200; 95 kg mod. 250; 110 kg mod. 250 (SYS)
  • DHW capacity suitable for a substitution of an existing traditional electric kettle
  • Low noise thanks to Silent – 59 db (A) function
    Kettle enameled steel with active anode and magnesium anode
  • Exchanger wound on the outside of the tank (not immersed in healthcare)
  • immersion heater dual power 1500 W 1000 W +
  • Model 250 (SYS) with coil dipped from 0.65 sq.m.
  • LCD display

Operation: green, car, boost, boost 2 and possibility of hourly programming and sampling and legionella function

Dati tecnici

Taglia 200 250 250 (SYS)
N. indicativo persone 3-5 4-6 4-6
Tipo di installazione Basamento
Tipo di prodotto Monoblocco
Dimensioni 1700 x 600 mm 1960 x 600 mm 1960 x 600 mm
Peso a vuoto 90 kg 95 kg 110 kg
Temperatura aria min/max -5 / 42 °C
Temperatura max acqua con Pdc 62 °C
Quantità massima di acqua a 40 °C 268 litri 345 litri 345 litri
Refrigerante R134a
COP 2.59 2.79 2.79
Tempo di riscaldamento 5.02 h,mm 6.29 h,mm 6.29 h,mm
Potenza elettrica assorbita media 750 W
Potenza resistenza elettrica 1500 + 1000 W
Livello di pressione sonora 59 db(A)
Pressione massima esercizio 6 bar
Scambiatore di calore aggiuntivo 1 x 0.65 mq

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