3 English• Names and functions of parts (Refer to figure 1)1. Outdoor unit2. Indoor unit3. Remote controller4. Inlet air5. Outlet air6. Cool/heat changeover remote control switch(figure 1 shows systems with changeover remotecontrol switches)3. REMOTE CONTROLLER ANDCHANGEOVER SWITCH: NAMEAND FUNCTION OF EACHSWITCH AND DISPLAY(Refer to figure 2 and 3)1. On/off buttonPress the button and the system will start. Pressthe button again and the system will stop.2. Operation lamp (red)The lamp lights up during operation.3. Display “ ” (changeover under control)It is impossible to changeover heat/cool with theremote controller when this icon is displayed.4. Display “ ” (air flow flap)Refer to the chapter “Operation procedure -Adjusting the air flow direction”.5. Display “ ” (ventilation/air cleaning)This display shows that the total heat exchangeand the air cleaning unit are in operation. (theseare optional accessories)6. Display “ ” (set temperature)This display shows the temperature you have set.7. Display “ ” “ ” “ ” “ ” (operationmode)This display shows the current operation mode.8. Display “ ” (programmed time)This display shows the programmed time of thesystem start or stop.9. Display “ ” (inspection/test operation)When the inspection/test operation button ispressed, the display shows the mode in whichthe system actually is.10. Display “ ” (under centralized control)When this display shows, the system is undercentralized control. (This is not a standard spec-ification.)11. Display “ ” (fan speed)This display shows the fan speed you haveselected.12. Display “ ” (time to clean air filter)Refer to the indoor unit manual.13. Display “ ” (defrost/hot start)Refer to the chapter “Operation procedure -Explanation of heating operation.”14. Timer mode start/stop buttonRefer to the chapter “Operation procedure -Programming start and stop of the system withtimer.”15. Timer on/off buttonRefer to the chapter “Operation procedure -Programming start and stop of the system withtimer.”16. Inspection/test operation buttonThis button is only used by qualified servicepersons for maintenance purposes.17. Programming time buttonUse this button for programming start and/or stoptime.18. Temperature setting buttonUse this button for setting the desired temperature.19. Filter sign reset buttonRefer to the indoor unit manual.20. Fan speed control buttonPress this button to select the fan speed of yourpreference.21. Operation mode selector buttonPress this button to select the operation mode ofyour preference.22. Air flow direction adjust buttonRefer to the chapter “Operation procedure -Adjusting the air flow direction”.23. Fan only/air conditioning selector switchSet the switch to “ ” for fan only operation or to“ ” for heating or cooling operation.24. Cool/heat changeover switchSet the switch to “ ” for cooling or to “ ” forheating operation.NOTE• In contradistinction to actual operating situations,the display on figure 1 shows all possible indica-tions.• If the filter sign lamp lights up, clean the air filter asexplained in the indoor unit manual. After cleaningand reinstalling the air filter: press the filter signreset button on the remote controller. The filtersign lamp on the display will go out.• The remote controller BRC1A52(for FXS, FXM, FXL, FXN) does not have the dis-play air flow flap (4) nor the air flow directionadjust button (22).CTEST