User manual CARRIER 40 DMC

[. . . ] In the event of any malfunctioning, switch the appliance off immediately and disconnect it from the mains electricity supply. Only qualified personnel are authorised to clean inside or maintain the appliance. [. . . ] This not only reduces efficiency by reducing the air flow, but can also lead to the malfunction (see fig. When using the appliance in cooling mode, try to prevent direct sunlight from heating up the room. Make sure that it is replaced correctly inside the appliance (see fig. Periodically clean the intake grille and the area around the outdoor unit to maintain correct air flow (see fig. If you are not going to use the appliance for an extended period of time, carefully follow the instructions below. Clean the indoor unit and the area around it. Operate the appliance in ventilation mode for half a day to dry the inside of the unit (see fig. Switch the appliance off and then disconnect it from the mains power supply (see fig. This air conditioning system is made up of an indoor unit and an outdoor unit, inter-connected by coolant pipes and electrical cables (see fig. The appliance is fitted with the safety devices listed in Table I on Page 7 below to ensure maximum comfort and efficient functioning under all weather conditions. System Type of protection What happens Operating mode in which the safety device trips Protection against Heat pump draughts of cold air Outdoor heat exchanger defrost cycle Indoor heat exchanger Only cooling and heat pump heating modes frost protection Delayed compressor start The internal fan is switched off The indoor and outdoor units' fans are switched off The compressor is switched off The compressor does not start immediately when the appliance is switched on Cooling or heating in heat pump heating mode On start-up or on mode change Heat pump heating mode Heat pump heating mode Cooling During functioning When the safety device trips On start-up or during functioning During functioning During functioning in heat pump heating mode, the unit performs defrost cycles to eliminate any ice that might form at low temperatures inside the outdoor unit. During defrosting, the indoor fan is automatically switched off and does not start up again until defrosting has been completed. [. . . ] Unpleasant smells can build up in the indoor unit's air filter and be blown into the room when the appliance is functioning. Switch the appliance off and call an authorised service centre to have the filters changed. [. . . ]