Daikin FNA35A2VEB Operation Manual

Also see for FNA25A2VEB: Installation manual Installer's reference guide Installer's reference guide

Contents

5 Energy saving and optimum operationOperation manual5FNA25~60A2VEBSplit system air conditioners4P456953-1 – 2017.065 Energy saving and optimumoperationCAUTIONThis unit is equipped with electrically powered safetymeasures, such as a refrigerant leak detector. In order tobe effective, the unit must be electrically powered at alltimes after installation, except for short service periods.1Observe the following precautions to ensure the system operatesproperly.▪ Adjust the room temperature properly for a comfortableenvironment. Avoid excessive heating or cooling.▪ Prevent direct sunlight from entering a room during coolingoperation by using curtains or blinds.▪ Ventilate often. Extended use requires special attention toventilation.▪ Keep doors and windows closed. If the doors and windows remainopen, air will flow out of your room causing a decrease in thecooling or heating effect.▪ Be careful not to cool or heat too much. To save energy, keep thetemperature setting at a moderate level.▪ Never place objects near the air inlet or the air outlet of the unit. Itmay cause deterioration in the effect or stop the operation.▪ When the display shows (time to clean the air filter), clean thefilters (see "6.2.3 To clean the air filter" on page 6).▪ Keep the indoor unit and user interface at least 1 m away fromtelevisions, radios, stereos, and other similar equipment. Failing todo so may cause static or distorted pictures.▪ Do NOT place items under the indoor unit, as they may bedamaged by water.▪ Condensation may form if the humidity is above 80% or if thedrain outlet gets blocked.6 Maintenance and service6.1 Overview: Maintenance andserviceThe installer has to perform a yearly maintenance.About the refrigerantThis product contains fluorinated greenhouse gases. Do NOT ventgases into the atmosphere.Refrigerant type: R32Global warming potential (GWP) value: 675Refrigerant type: R410AGlobal warming potential (GWP) value: 2087.5NOTICEIn Europe, the greenhouse gas emissions of the totalrefrigerant charge in the system (expressed as tonnesCO2-equivalent) is used to determine the maintenanceintervals. Follow the applicable legislation.Formula to calculate the greenhouse gas emissions:GWP value of the refrigerant × Total refrigerant charge [inkg] / 1000Please contact your installer for more information.WARNINGR410A is a non-combustible refrigerant, and R32 is amildly flammable refrigerant; they normally don’t leak. If therefrigerant leaks in the room and comes in contact with firefrom a burner, a heater, or a cooker, this may result in afire (in case of R32), or the formation of a harmful gas.Turn off any combustible heating devices, ventilate theroom, and contact the dealer from where you purchasedthe unit.Do not use the unit until a service person confirms that thepart from which the refrigerant leaked has been repaired.WARNING▪ Do NOT pierce or burn refrigerant cycle parts.▪ Do NOT use cleaning materials or means to acceleratethe defrosting process other than those recommendedby the manufacturer.▪ Be aware that the refrigerant inside the system isodourless.NOTICEMaintenance MUST be done by an authorized installer orservice agent.We recommend performing maintenance at least once ayear. However, applicable legislation might require shortermaintenance intervals.DANGER: RISK OF ELECTROCUTIONTo clean the air conditioner or air filter, be sure to stopoperation and turn all power supplies off. Otherwise, anelectric shock and injury may result.▪ In case the unit is equipped with a refrigerant leakagesensor, turn the power supply breaker back onimmediately after cleaning in order to maintaindetection functionality.WARNINGTo prevent electric shocks or fire:▪ Do NOT rinse the unit.▪ Do NOT operate the unit with wet hands.▪ Do NOT place any objects containing water on the unit.CAUTIONAfter a long use, check the unit stand and fitting fordamage. If damaged, the unit may fall and result in injury.CAUTIONDo not touch the heat exchanger fins. These fins are sharpand could result in cutting injuries.NOTICEWhen cleaning the heat exchanger, make sure to removethe switch box and fan motor. Water or detergent mightdeteriorate the insulation of electronic components andresult in burnout of these components.WARNINGBe carefull with ladders when working in high places.(1) Only for units using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.