Riello NXHM 004 Single Phase Monobloc Air Source Heat Pump Coastal Blygolded

The Riello NXHM 004 Single Phase Monobloc Air Source Heat Pump Coastal Blygolded is a reversible residential hydronic heat pump monobloc designed for heating, cooling, and domestic hot water production, featuring DC-Inverter technology, R32 refrigerant, and Blygolded coils for corrosion resistance in coastal environments.

Product Description

The Riello NXHM 004 is part of the NXHM series, offering heating capacity from 4.2 to 15.9 kW, with the 004 model providing 4.2 kW nominal heating. It uses ecological R32 refrigerant for low Global Warming Potential (GWP) and CO2 emissions, with high COP up to 5.1 for energy efficiency. The unit is equipped with Blygolded exchange coils featuring hydrophilic and anti-corrosion treatment, improving condensation flow and reducing freezing risk in coastal areas. It supports water heating up to 65°C and can connect to low-temperature radiators, underfloor systems, or fan coils. The anti-freeze program protects hydraulic parts in cold temperatures, and it can manage up to 6 units in cascade.

Key Features

• DC-Inverter technology: Twin-Rotary compressor modulates power for precise load matching.
• R32 refrigerant: Low GWP for environmentally friendly operation.
• Coastal Blygolded: Anti-corrosion treatment for humid and coastal climates.
• Silent operation: Low noise for residential comfort.
• High efficiency: COP up to 5.1, energy class A+++ (35°C) or A+ (55°C).
• Anti-freeze program: Protects system in cold ambient temperatures.
• Wired controller: Manages heating, cooling, and DHW.
• Cascade capability: Up to 6 units, even with different powers.

Technical Specifications

• Model: NXHM 004 – Single Phase Monobloc ASHP.
• Heating capacity: 4.2 kW nominal (4.3 kW at W45/A-7).
• Cooling capacity: 4.5 kW.
• COP: Up to 5.1.
• EER: 3.6.
• Refrigerant: R32.
• Max flow temperature: 65 °C.
• Outdoor working temperature: -25°C to 43°C.
• Power supply: 220-240V single phase.
• Certifications: MCS approved, HP Keymark certified.

Dimensions & Weights

• Width: 1118 mm.
• Depth: 864 mm.
• Height: 523 mm.
• Weight: 120 kg.

System & Application Notes

• Ideal for residential heating, cooling, and DHW with heat pumps.
• Compatible with low-temperature radiators, underfloor heating, and fan coils.
• Suitable for coastal areas with Blygolded anti-corrosion protection.
• Installation by qualified heat pump engineers; qualifies for Boiler Upgrade Scheme.
• MCS approved for funding; 7-year warranty with approved installation.