GB - 442HQM1. Transmission indicator2. Automatic mode3. Cooling mode4. Dehumidifying mode5. Heating mode6. Operating indicators7. Economy mode indicator8. Timer ON selection indicator9. Timer OFF selectionindicator10. Fan speed indicators11. Unit ON symbol12. Unit B selection indicator("A" not displayed)13. Fan speed14. Selected temperature/timerhours selectedAUTO AUTOQUIETMODE FANCOOLDRYHEATTEMP.Hr.ON OFFB Display of selected functionsFor correct operation of theair conditioner it isrecommended to fulfilcarry out checks andmaintenance indicated.Recommended maintenanceintervals may varydepending on theinstallation environment,e.g. dusty zones, etc.(1) Increase frequency industy zones.(2) Operations to be fulfilledby qualified servicepersonnel. Refer also to“Installation Manual”.Table II: Periodical checksIndoor unit Every month Every 4 months Every yearClean air filter •(1)Clean drain pipe •Change controller batteries •Outdoor unit Every month Every 4 months Every yearClean outdoor coil from outside •Clean outdoor coil from inside (2) •Blow air over electric parts (2) •Check electric connection tightening (2) •Clean fan wheel (2) •Check fan tightening (2) •Clean drain pan (2) •