• One of the most cost-effective ways to heat buildings. The system also works at temperatures as low as -25°C.
• High efficiency and long service life thanks to the use of components from world-renowned manufacturers
• A comprehensive control system ensures optimal monitoring and security. Internet control is possible. A wired control panel is included as standard.
• High ease of use. Intuitive and simple operation of the controls.
• The device's compact design allows for quick installation.
• Energy class A++ at 55°C flow temperature, A+++ at 35°C flow temperature

The ultimate feeling of comfort

NEXUS M EVI heat pumps enable optimal room temperature with minimal energy consumption. They allow the right air temperature to be achieved while simultaneously providing access to hot water to fully meet consumer needs.

Advantages of monoblock construction

The pump is designed entirely for outdoor installation. A key feature of the pump is that the entire cooling system is housed in a single unit, with only the pipes supplying heat to the building extending outside.

Working under extreme conditions

NEXUS heat pumps are innovative system solutions from SUNEX that keep your home warm even at extremely low temperatures down to -25 degrees Celsius. In operation, they offer exceptional efficiency, reliability, and cost-effectiveness.

Working under extreme conditions

NEXUS heat pumps are innovative system solutions from SUNEX that keep your home warm even at extremely low temperatures down to -25 degrees Celsius. In operation, they offer exceptional efficiency, reliability, and cost-effectiveness.

Technical data:

• SCOP (W35) temperate climate: 4.59 kWh
• SCOP (W55) temperate climate: 3.47kWh
• Energy efficiency class (W35): A+++
• Energy efficiency class (W55): A++
• Compressor: Panasonic (rotating, multi-stage vapor injection)
• Expansion valve: electronic
• Number of fans: 1
• Circulation pump: no
• Water-side pressure loss: 31 kPa
• Control: Standard control module
• Outside temperature: -25 to +45°C
• Flow temperature: 55°C
• Recommended heating water flow rate: 1.4 m³/h
• Work equipment / GWP: R32 / 675
• Amount of refrigerant R32: 1.3 kg
• Defrosting method: Hot gas (reverse cycle)
• Sound power level: 53dB
• Dimensions: 970x475x835mm
• Weight (net/gross): 110/120kg
• Power supply: 220-240V 50Hz
• Max. current (heating/cooling/hot water): 8.30/9.67/9.45A

FISH S4 100X buffer storage tank as wall-mounted or floor-standing version

The buffer tank is designed for vertical installation only. It is ideal for all types of heating systems, especially those using heat pumps. The buffer tank allows for the connection of a heat source circuit and a central heating circuit. It can be wall-mounted or placed on feet. Buffer tanks can be used to store cold water at temperatures between 7 and 12°C.

Technical data buffer storage tank FISH S4 100X:

• Material: S235JR
• Capacity: 100L
• Maximum operating pressure of the storage tank: 3 bar
• Operating temperature range: 7–95°C
• Insulation: 30mm
• Heat source connection: G 1½”
• Water drain connection: G 1½”
• Temperature sensor connection: G ½”
• Weight: 23kg

FISH S15 300X domestic hot water storage tank

Vertical hot water storage tank for domestic hot water preparation. The tank features a large-surface heat exchanger for a heat pump. The contact surface between the hot water and the tank is protected against corrosion by a layer of high-quality enamel and a magnesium anode*. Complies with DIN 4753. This ensures that the domestic hot water only comes into contact with a hygienically clean surface.

Technical data for Fisch S15 300X hot water storage tank:

• Material: S235JR
• Capacity: 300L
• Welding: automatic welding
• Protection: high-quality enamel coating and protective anode
• Maximum operating pressure of the storage tank: 10 bar
• Maximum test pressure: 15 bar
• Maximum operating temperature: 95ºC
• Insulation: 50mm thick polyurethane foam
• Outer shell: grey color
• Heat exchanger: Steel tube S235JR
• Inspection opening: ø125mm/ø180mm

Insyg Cloud + Antenna

The Insyg Cloud control module allows the manufacturer remote access to your heat pump. Sunex handles the complete configuration and maintenance of your heat pump.

The Insyg Cloud is used to operate the Sunex M EVI heat pump. It also controls two heating circuits and the domestic hot water circuit.
The device is equipped with a color touch panel.

The device can be connected to:

• 2 circulation pumps
• 2 mixing valves (opening and closing)
• electric heating element
• changeover valve
• circulation pump

The heating circuits are controlled based on the target temperature of the heating circuit.
(Sensors for circuits 1 and 2) and the room sensor or room thermostat (type On/Off).

Advantages of the Insyg Cloud:

• fast reaction time
• Touchscreen control panel.
  Control of heating circuits
• Management of heat generation for the hot water storage tank and the buffer storage tank
• Management of cooling generation for the buffer storage
• It is designed for the NEXUS pumps M8EVI and M13EVI.

Technical specifications of the electrical box:

• Power supply: 230V ± 10% / 50Hz*
• Maximum power consumption (no load): 30W
• Maximum load of the electric heating element: 4/6kW
• Dimensions (L x W x H) 151.5 x 43.9 x 87.7

Pump group GPO HYDRA DN 25

Two-way pump group with Hydra GPO 25-6-130 without mixing valve, ball valve DN 25

The two-way pump assembly with ball valve is designed to force the circulation of the working fluid in central heating, process heat, and cooling systems. It is equipped with two ball valves with thermometers, a Hydra GPO 25-6-130 circulation pump, thermal insulation, and a ball valve with a rotary knob.

The GPO 25-6-130 pump can be operated at a constant pump speed, which can be set using the control knob. It is also possible to control the pump speed according to the characteristic curve ΔpV.

Hydra GPO is an electronic and energy-saving pump with high efficiency. The pump is designed for use in circuits filled with water or glycol solutions with a concentration of ≤50%.

Technical data:

• Dimensions (L x W x H) mm: 390 x 275 x 140
• Connection spacing (mm): 125
• Upper connections: 2 x IG 1"
• Lower connections: 2 x AG 1 1/2"
• Maximum pressure (bar): 6
• Maximum temperature °C: 90
• Pump: Hydro GPO 25-6-130
• Voltage (V, Hz): 1~230, 50-60
• Maximum current A: 0.5
• Energy Efficiency Index (EEI): 0.20
• Maximum power consumption: 65 W
• Weight (kg): approx. 5.3
• Model: DN 25

Technical data for the circulation pump:

• Liquid temperature: 2°C to 110°C
• Ambient temperature: 0~+40°C
• Storage temperature: -35°C to 80°C
• Max. pressure: 10 bar
• Protection rating: IP44
• Voltage/Frequency: 220V~240V, 50/60Hz
• Insulation class: E
• Maximum input power: 65W
• Pipe dimensions: DN25
• Connection spacing: 130mm
• Max. lifting height: 8m
• Connections: 1 1/2"
• 3. Maximum flow rate: 4 m³/h