Specifications: 4*indoor unit: 1. Color: white 2. Power supply: 208 230v 60hz 3. Cooling : rated capacity: 9000btu h 12000btu h 18000btu h rated seer2: 20btu w.H 21btu w.H 21btu w.H rated eer2: 10btu w.H 9.5Btu w.H 9.5Btu w.H 4. Heating: rated capacity: 10000btu h 12600btu h 19000btu h hspf2 rating region iv : 8.5Btu w.H 8.2Btu w.H 8.2Btu w.H 5. Operation temperature: 16 31 degree celsius 61 88 degree fahrenheit 6. Use the air conditioner in the following temperature conditions: indoor cooling heating : 17 32degree celsius 63 90degree fahrenheit 0 27degree celsius 32 80degree fahrenheit outdoor cooling heating : 15 55degree celsius 59 131degree fahrenheit -15 24degree celsius 5 75 degree fahrenheit 7. Moisture removal: 1.1L h 1.6L h 2.2L h 8. Indoor air circulation hi : 580 520 460m h 520 450 380m h 1030 790 730m h 9. Indoor noise level at cooling turbo high med. Low mute : 43 41 36 31 29db a 45 42 35 30 28db a 49 47 42 37 32db a 10. Application area: 9000btu up to 400 sq.Ft. 12000Btu up to 550 sq.Ft. 18000Btu up to 1000 sq.Ft 11. Certificate : ahri etl 12. 9000Btu: indoor dimensions: 81.1X29.2X20.5Cm 31.9X11.5X8.1Inch indoor package dimensions: 88.5X36.6X27.8Cm 34.8X14.4X10.9Inch indoor net weight: 9kg 19.8Ibs indoor gross weight: 12kg 26.5Ibs 13. 12000Btu: indoor dimensions: 81.1X29.2X20.5Cm 31.9X11.5X8.1Inch indoor package dimensions: 88.5X36.6X27.8Cm 34.8X14.4X10.9Inch indoor net weight: 9.5Kg 20.9Ibs indoor gross weight: 12.7Kg 28ibs 14. 18000Btu: indoor dimensions: ...