COMBI S 302 POLAR TOP BY NILAN
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Ventilation with passive & active heat recovery Domestic Passive Active Ventilation Comfort heat recovery heat recovery < 375 m3/h heating Comfort cooling NILAN ^ OUTSTANDING INDOOR CLIMATE

COMBI S 302 POLAR TOP Product description Combi S 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 83% 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 S 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 air in...

COMBI S 302 POLAR TOP BY NILAN 8 duct connections. Combi S 302 Polar Top is supplied as standard with 4 duct connections in the top. Time-controlled filter change alarm. Easy filter access by opening the top front panel with the help of two finger screws. Plates are mounted on the side, which makes it possible to move the ducts from the top to the side as required. There is plenty of space to replace filters and to vacuum clean the filter space. Combi S 302 Polar Top has a frostprotection heating element. Efficient counterflow heat exchanger providing high temperature efficiency and low...

* 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 265 m3/h according to EN 13141-7. * 3 At ± 100 Pa and 265 m3/h according to EN 13141-7.

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

PLANNING DATA Capacity 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. Conversion factor: Attention! The SEL values are measured and stated as a total value for both fans.

COMBI S 302 POLAR TOP BY NILAN Temperature efficiency Temperature efficiency for units with counterflow heat exchanger according to EN13141-7 NB! Temperature efficiency is only for the counter flow heat exchanger (without heat pump operation) Temperature efficiency

Heat output supply air Heat output Qc [W] as a function of qv [m3/h] and outdoor air temperature t21 [°C]. In accordance with EN 14511, tn=21°C (extract air) Heat output is the contribution to room heating added to the fresh air via Combi S 302 Polar Top to the supply air. The ventilation loss is the heat output that is lost without heat recovery at the given volume flow air. 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...

I COMBI S 302 POLAR TOP BY NILAN 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 at the installation site.

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, 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...

COMMUNICATION External communication 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 up by 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....

COMBI S 302 POLAR TOP BY NILAN Frost protection All ventilation units with a counterflow heat exchanger will ice up if the outdoor temperature is below freezing for a prolonged period. Consideration must be given to whether the unit’s operation can be protected during a lengthy period of frost or whether it is acceptable to decrease its operation. With pre-heater Temperature efficiency The extracted air condenses when it is cooled down during heat recovery. The high temperature efficiency will slowly turn the condensate to ice, which will block up the counterflow heat exchanger unless...

ACCESSORIES EM-box An EM-box allows heat recovery from the air from the range hood and thereby helps to heat the supply air. The EM-box is equipped with a steel filter which efficiently cleans the range hood air of fat particles and thereby protects the system. A pollen filter class ISO ePM1 65-80% (F7) can be fitted in the unit. DBTU damper If there is not enough space to fit an EM-box, Nilan offers a DTBU damper, which can be fitted between kitchen and bathroom. The damper functions precisely like the EM-box but requires longer cables. The expansion PCB provides additional functions for...

COMBI S 302 POLAR TOP BY NILAN Transport and storage Combi S 302 Polar Top comes in factory packaging that protects it during transport and storage. Combi S 302 Polar Top must be stored in a dry place in its original packaging until installation. The packaging should only be removed immediately prior to installation. Installation conditions During installation, future service and maintenance should be taken into account. We recommend a minimum space in front of the unit of 60 cm. The unit must be installed level for the sake of the condensate drain. The condensate drain requires clearance...