PRODUCT DATA COMBI 302 POLAR / COMBI 302 POLAR TOP BY NILAN Ventilation with passive & active heat recovery Passive heat recovery Active heat recovery Comfort heating Comfort cooling

COMBI 302 POLAR Product description Combi 302 Polar is 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. Combi 302 Polar 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...

COMBI 302 POLAR BY NILAN An automatic 100 % bypass damper leads the outdoor air past the heat exchanger when heat recovery is not required, thereby saving energy. Efficient counterflow heat exchanger providing high temperature efficiency and low pressure loss, resulting in good heat recovery and low energy consumption. The unit comes with a clear and user-friendly HMI Touch panel. The efficient fans are powered by energy-saving EC motors. The modern HMI Touch panel runs Modbus communication. They provide a constant air volume with a four-step adjustment. The hermetically-sealed heat pump utilises...

* 1 32 W: Outdoor air temperature -12 °C. Fitting location -12 °C. Extract air temperature 20 °C (room). -32 W: Outdoor air temperature -12 °C. Fitting location 20 °C. Extract air temperature 20 °C (room). * 2 At ± 250 Pa and 300 m3/h according to EN 13141-7. * 3 At ± 100 Pa and 300 m3/h according to EN 13141-7.

COMBI 302 POLAR BY NILAN Dimensional drawing 1: Fresh air 2: Supply air 3: Extract air 4: Discharge air 5: Condensate drain 6: Electric supply

PLANNING DATA Paext Capacity of standard unit as a function of qv and Pt, ext. SEL values according to EN 13141-7 are for standard units with ISO Coarse >90% (G4) filters and without heating element. SEL values comprise the unit´s total power comsumption incl. control. J/m3 = W/m3/h 3600 Conversion factor: Attention! The SEL values are measured and stated as a total value for both fans. Temperature efficiency Temperature efficiency for units with counterflow heat exchanger according to EN308 (dry). Temperature efficiency EN308: ɳt = (tsupply air-tfresh air)/(textract air-tfresh air) COP (heating)...

COMBI 302 POLAR BY NILAN Q c [W] 4000 Heat effect (supply air) Heat effect Qc [W] as a function of qv [m /h] and fresh air temperature [°C]. 3 Supply air temperature (heating) Supply air temperature [°C] as a function of fresh air temperature [°C] and volume flow qv [m3/h] balanced flow. Supply air temperature (cooling) Supply air temperature [°C] as a function of fresh air temperature [°C] and volume flow qv [m3/h] balanced flow. Sound data Sound output level (LWA) Octave band Hz Sound data for qV = 210 m3/h and Pt, ext = 100 Pa according to EN 9614-2 for surfaces and EN 5136 for ducts. Sound...

COMBI 302 POLAR TOP Product description Combi 302 Polar Top is 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. Combi 302 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...

COMBI 302 POLAR TOP BY NILAN An automatic 100 % bypass damper leads the outdoor air past the heat exchanger when heat recovery is not required, thereby saving energy. Aluzinc steel plate,white powder coating (RAL9016) The hermetically-sealed heat pump utilises the residual energy after the counterflow heat exchanger and ensures a high supply air temperature. Filter monitor with timer. Separate door for the filters give the user easy access to change the filter and also protect the user from contact with fans and heat pump. Can also cool the supply air. The efficient fans are powered by energy-saving...

* 1 32 W: Outdoor air temperature -12 °C. Fitting location -12 °C. Extract air temperature 20 °C (room). -32 W: Outdoor air temperature -12 °C. Fitting location 20 °C. Extract air temperature 20 °C (room). * 2 At ± 250 Pa and 300 m3/h according to EN 13141-7. * 3 At ± 100 Pa and 300 m3/h according to EN 13141-7.

COMBI 302 POLAR TOP BY NILAN Dimensional drawing 1: Fresh air 2: Supply air 3: Extract air 4: Discharge air 5: Condensate drain 6: Electric supply

Capacity of standard unit as a function of qv and Pt, ext. SEL values according to EN 13141-7 are for standard units with ISO Coarse >90% (G4) filters and without heating element. Attention! The SEL values are measured and stated as a total value for both fans. Temperature efficiency Temperature efficiency for units with counterflow heat exchanger according to EN308 (dry). Temperature efficiency EN308: ɳt = (tsupply air-tfresh air)/(textract air-tfresh air) The ventilation loss is the heat output that is lost without heat recovery at the given volume flow air. Ventilation loss Heat output Heat...

I COMBI 302 POLAR TOP BY NILAN COP (air-air) Heat output factor COP [-] supply air as a function of outdoor temperature t21 [°C] and volume flow qv [m3/h] in accordance with EN14511 at a room temperature t11 = 21°C COP according EN14511 is calculated for the heat pump and counter flow heat exchanger combined. Sound data Sounddata is for qv = 210 m3/h and Pt ext = 100 Pa in accordance with EN 9614-2 for surface and EN 5136 for ducts. Sound output level LWA drops with falling air volumes and falling back-pressure. At a given distance, the sound pressure level LpA will depend on the acoustic conditions...