Combi302 Polar Topis a ventilation unit that combines two heat recovery technologies.
Passive heat recovery takes place via a counterflow heat exchanger that utilises between 85% and 95% of the energy in the extracted air. Active heat recovery takes place via a heat pump that utilises the residual energy. The heat pump has a COP >4, which eliminates the need to install a heating coil with an attached mixing circuit. Combi302 Polar Top can increase the temperature of the supply air to over 30°C.
The heat pump also makes it possible to cool the supply air in the summer by up to 10°C.Due to the low air exchange, this does not function as an air conditioning system, but cooling the air intake reduces its humidity, giving a more pleasant and comfortable climate inside the home, even when the indoor temperature is high.
Combi302 Polar Topis delivered with a built-in pre-heating element, which protect the counterflow heat exchanger against icing. This ensures continuous operation at low outdoor temperatures.
The CTS602 HMI touch panel is featuring a wide range of functions, e.g., menu-controlled operation, weekly programme settings, filter monitor with timer, fan speed adjustment, summer bypass (free cooling),supply-heating element control, error messages etc.
The CTS602 comes with factory settings, including a default setting which can be customised to operational requirements to achieve optimum operation and utilisation of the system.
There is an option for selecting between 2 front page images for the main screen.
Operating instructions for the CTS 602 can be found in a separate user manual supplied with the unit.
The CTS 602 control unit communicates by default with Modbus RTU RS485 communication. A CTS system using this form of communication can easily be connected to the unit.
Nilan units have an open Modbus communication, i.e. not only can the unit be monitored, but its operation can also be set in the same way as it can via the operating panel.
The protocol is set upby default for a Modbus RTU 30 address, but can be set to a value between 1 and 247.
A Modbus converter allows you to connect one or more units to a computer to monitor and control the unit.
Intelligent humidity control
Nilan’s humidity control feature automatically adapts to the needs of the family or the building.
The intelligent CTS 602 control unit does not need to have a set level input for air humidity (RH) to control the air exchange. By using the integrated humidity sensor, the control unit calculates the average level itself for the last 24 hours. The average level provides a basis for deciding whether to change the air exchange if the air humidity fluctuates.
This ensures that the unit always runs at its most efficient, based on the actual air humidity level and not on a theoretical one.
This helps save energy because it automatically adapts to the requirements in the home. Whether a large family or a single person is living in the building has a considerable influence on how much humidity is produced.
The unit also adjusts automatically to summer and winter level.