Nilan reserves the right to alter these instructions without prior notice Page 3 af 26Introduction Please control that the following documents have been delivered together with the unit:- Directions for assembly & use (this document)- CTS 602 directions- Electrical chartShould you have any questions on how to operate the system, contact your nearest Nilan dealer,who you can find at www.nilan.dk/dealersThe purpose of this instruction manual is to offer the installation contractor and the user instruc-tions on correct installation and maintenance of the Comfort system.Comfort is a ventilation unit with heat recovery. The unit can yield up to 325 m3/h at 100 Pa exter-nal back pressures. The energy in the exhaust air is being transferred to the inlet air.The system is prepared for retrofitting of a post-heating element (electricity or water) for supplyheating of the inlet air. The post-heating element is controlled via CTS 602.The unit is delivered with a G4 filter.Operating the unit is done with the CTS 602 control. The control has many functions such as menubased attendance, week programme, time controlled filter guard and adjustment of the velocity ofthe ventilator. (Directions for the CTS 602 control is described in another document delivered withthe unit.)See section on accessories and spare parts.Comfort is delivered tested and ready for use. Installation and start-up must be carried out by anauthorized electrician. We recommend that the system as well as the installation itself are adjusted/lookedthrough in order to ensure optimal operation