inverter heat pumps air-water type Nexus M9/M14/M17 PRO

monoblock heat pumps

The Nexus PRO heat pump series has been developed with the latest technology for the use of the natural refrigerant R290. An inverter compressor is used, which allows the performance of the heat pump to be adjusted to the demand. The heat pumps of the PRO series achieve a heating water flow temperature of up to 67°C. In addition, a powerful brushless EC fan with variable

Speed control is used to ensure optimum efficiency with the lowest possible noise level. Other advantages of the device include a compact housing, a control system for the heating circuits in the building and an intelligent defrost system that ensures efficient operation in all conditions. Experience the new face of comfort with NEXUS.

Key Features

• The automation ensures continuous power control of the compressor, fan and circulation pump;
• The standard control regulates the operation of the heat pump and the heating circuits for central heating and domestic water;
• The heat pump can operate in cooling mode. However, it is recommended to use this mode in a system with underfloor heating;
• The appliance is equipped with automatic defrosting with hot gas (by reversing the circuit);
• The device has integrated temperature and pressure protection for the refrigerant circuit;

• By controlling the heat pump components, the control system aims to maintain the parameters of the refrigeration system during operation so that they do not exceed the permissible operating range;
• Active frost protection of the water circuit even during cooling operation (electrical supply required);
• Passive frost protection for the water circuit, without electrical supply (if the water circuit is equipped with a thermostatic frost protection valve)
• Possibility to operate the heat pump via the weather control function;
• Fan with energy-efficient electronically commutated brushless motor (EC);
• Flow water temperature up to 67°C;
• Hydrophilic coated evaporator.
• The heat pump can be operated in a surface heating and radiator system.

• High efficiency in every installation thanks to the Mitsubishi scroll compressor
• Compact weatherproof design
• Energy efficiency class A+++, temperate climate, low temperature applications (EN 14825)
• The easy-to-use Carel controller ensures optimal control and correct operation of the system. Possibility of remote control through the use of a special Internet module.
• Quiet operation. Meets the requirements of Commission Regulation (EU) No 813/2013
• Environmentally friendly coolant

Key Features INSYG ALFA

Control of 2 heating circuits with mixing valves according to the heating curve;

Switching between central heating and domestic water as required.

Switching on the electric heating element as additional heating, emergency power source or to heat the domestic water;

Control of the domestic water circulation pump;

Schedule for central heating and domestic water

control panel with 4.3" touchscreen graphic display

Graphic display of heat pump operating parameters

and heating circuits;

Can be connected to an Internet module via the MODBUS communication port