Riello Nexaqua 120 LT Heat Pump Water Heater - Code 20075562

Technical Features

Model

Riello Nexaqua 120 LT Heat Pump Water Heater

Product Code: 20075562

Energy Efficiency

Volume: 120 litres
Nominal pressure: 6 bar
Corrosion protection: Enamelled / Mg anode
Insulation thickness: 40 – 85 mm
Warm-up time (1) h:min 06:40
Energy consumption during heating (1): kW/h 1.41
Type of measured emissions cycle:M
Energy consumption in the test cycle (1): kW/h 2.08
Standby power according to EN16147: W 19

Performance

Set water temperature: °C 55
Maximum heat pump temperature: 55°C
Maximum temperature with resistors: 75°C
Anti-legionella program: °C 70
Appliance storage temperature (min - max): °C 2 -35

Characteristics

Refrigerant type R 134a
Refrigerant quantity: 490 g
Sound power: dB (A) 51
Sound pressure at 1 m: dB (A) 39.5
Operating air flow m3 /h: 100 - 230
Useful static pressure (with flow rate of 100 m3/h): Pa 95

General Features

NEXAQUA



NexAqua is Riello's solution, designed and optimized for domestic hot water production. The unit consists primarily of a mini heat pump and a boiler. The mini heat pump, housed directly in the upper part of the boiler, uses the thermal energy of the air, radiated by a boiler or other sources, to heat the water in the boiler, which has a capacity of 80 and 120 liters.
Air is drawn in by a centrifugal fan that allows the heat pump to operate in recirculation mode or for specific installation locations, through ducting up to 15 m in diameter (DN125). The recovered energy is transferred to the water by an external heat exchanger arranged circumferentially on the outside surface of the boiler, thus avoiding significant maintenance costs.
NexAqua's high efficiency is due to the use of an R134a refrigerant circuit and is capable of heating water up to 55°C. The boiler is equipped with two 1.0 kW electric heating elements as standard. The elements perform three main functions: backup heating, antifreeze, and emergency heating.



NexAqua allows 4 types of air connection:

- free-blow sending and receiving,

- outlet channelled towards the outside and return with free mouth,

- ducted supply to the outside and ducted return from adjacent rooms,

- ducted supply to the outside and ducted return from the outside.

The entire system is controlled and adjusted via a touch screen control.

NexAqua is available in 2 versions:

- NexAqua: models with 80 and 120 l boilers, heat pump operating range with air temperatures from 7 to 35°C

- NexAqua Plus: models with 80 and 120 l boilers, heat pump operating range with air temperatures from -7 to 35°C



- DHW production with temperatures up to 55°C

- Touch Screen Display

- High coefficient of performance

- Supporting electric resistors (2) of 1.0 kW each

- Easily ductable thanks to the centrifugal fan

- Anti-corrosion magnesium anode



CONSTRUCTION FEATURES



- 80 or 120 litre tank

- Refrigerant circuit in standard version or equipped with 4-way valve (“Plus” version)

- Hanging installation inside the building

- Integrated TC probe for water temperature control

- External air probe for automatic activation of the resistance at temperatures not favourable to the heat pump

- Anti-corrosion magnesium anode

- Hydraulic connections and condensation drain located in the lower part

- High thickness thermal insulation (40-85mm)

- Ecological gas R134a

- Electric resistance 2 x 1 kW - 230V 50Hz

- High pressure safety devices

- Radial fan with flow regulation

- ACS Set-Point regulation up to 55°C via heat pump and up to 75°C with electric resistance

- External air temperature detection

- self-diagnosis with error display

- Setting parameters from touchscreen display

- Insertion of cyclic antibacterial treatment to eliminate and prevent the formation of legionella, default setpoint 70°C

- User display for setting the operating mode and various parameters with varying degrees of password accessibility.

- Complies with EN 16147