9 About the systemInstallation and operation manual14FCAG35~140AVEBSplit system air conditioners4P471224-1 – 2017.03For the user9 About the systemThe indoor unit of this split system air conditioner can be used forheating/cooling applications.NOTICEDo not use the system for other purposes. In order to avoidany quality deterioration, do not use the unit for coolingprecision instruments, food, plants, animals or works of art.NOTICEFor future modifications or expansions of your system:A full overview of allowable combinations (for futuresystem extensions) is available in technical engineeringdata and should be consulted. Contact your installer toreceive more information and professional advice.9.1 System layoutabcde ifgha Indoor unitb Outdoor unitc User interfaced Suction aire Discharge airf Refrigerant piping + interconnection cableg Drain pipeh Earth wiringi Suction grille and air filter10 User interfaceCAUTIONNever touch the internal parts of the controller.Do not remove the front panel. Some parts inside aredangerous to touch and appliance problems may happen.For checking and adjusting the internal parts, contact yourdealer.This operation manual will give a non-exhaustive overview of themain functions of the system.For more information about the user interface, see the operationmanual of the installed user interface.11 Operation11.1 Operation rangeUse the system in the following temperature and humidity ranges forsafe and effective operation.For combination with R410A outdoor unit, refer to the following table:Outdoor units Cooling HeatingRR71~125 Outdoortemperature–15~46°C DB —Indoortemperature18~37°C DB12~28°C WB—RQ71~125 Outdoortemperature–5~46°C DB –9~21°C DB–10~15°C WBIndoortemperature18~37°C DB12~28°C WB10~27°C DBRXS35~60 Outdoortemperature–10~46°C DB –15~24°C DB–16~18°C WBIndoortemperature18~32°C DB 10~30°C DB3MXS40~684MXS68~805MXS90Outdoortemperature–10~46°C DB –15~24°C DB–16~18°C WBIndoortemperature18~32°C DB 10~30°C DBRZQG71~140 Outdoortemperature–15~50°C DB –19~21°C DB–20~15.5°C WBIndoortemperature18~37°C DB12~28°C WB10~27°C DBRZQSG71~140 Outdoortemperature–15~46°C DB –14~21°C DB–15~15.5°C WBIndoortemperature20~37°C DB14~28°C WB10~27°C DBRZQ200~250 Outdoortemperature–5~46°C DB –14~21°C DB–15~15°C WBIndoortemperature20~37°C DB14~28°C WB10~27°C DBAZQS71~125 Outdoortemperature–15~46°C DB –14~21°C DB–15~15.5°C WBIndoortemperature20~37°C DB14~28°C WB10~27°C DBFor combination with R32 outdoor unit, refer to the following table:Outdoor units Cooling HeatingRXM35~60 Outdoortemperature–10~46°C DB –15~24°C DB–16~18°C WBIndoortemperature18~32°C DB 10~30°C DB