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SunexNEXUS M9 Pro

Sunex NEXUS M9 Pro
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The Sunex NEXUS M9 Pro is an air-to-water heat pump with a SCOP of 4.79 (35 °C) and a sound power level of 58 dB(A).1,2

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SCOP (35 °C)
4.791

Seasonal efficiency: how much heat you get per kWh of electricity across a heating season.

Outdoor unit sound power
58dB(A)1
Official source
Refrigerant
R2901
Official source
Type (source)
Air-to-water1
Official source
Rated output 35 °C
7.52kW1
Official source

Technical specifications

General
Type (source) Air-to-water1
Compressors 11
Capacity control drehzahlregelung1
Performance
Rated output 35 °C 7.52 kW1
Rated output 55 °C 7.1 kW1
Efficiency
SCOP (35 °C) 4.791
SCOP (55 °C) 3.621
Seasonal efficiency ηs 35 °C 188.8 %1
Seasonal efficiency ηs 55 °C 141.6 %1
COP A7/W35 4.471
COP A2/W35 3.651
COP A-7/W35 2.961
Noise
Outdoor unit sound power 58 dB(A)1
Refrigerant
Refrigerant R2901
Refrigerant GWP 32
Refrigerant charge 2.45 kg1
Electrical
Max. power input 4 kW1
Connectivity & smart
SG Ready Yes1
Grants & market
ISDE grant (NL) 2,375 €2

Manufacturer documentation

External links to Sunex's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

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Frequently asked questions

Which refrigerant does the Sunex NEXUS M9 Pro use?

The Sunex NEXUS M9 Pro uses R290.1,2

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 28 Sept 2026
  2. ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026