INDEX
1. GENERAL WARNINGS ........................................................................................................................ 19
2. CONSERVATION OF THE MANUAL ................................................................................................... 19
3. SAFETY PRECAUTIONS AND INSTALLATION REGULATIONS ........................................................ 19
4. R32 REFRIGERANT ............................................................................................................................ 19
5. INSTALLATION REGULATIONS .......................................................................................................... 20
6. INSTALLATION WARNINGS ................................................................................................................ 20
7. IMPORTANT INFORMATION TO USERS ............................................................................................ 21
8. PRECAUTIONS AND WARNINGS FOR USE ...................................................................................... 22
9. OPERATION LIMITS ............................................................................................................................ 23
10. INSTALLATION .................................................................................................................................. 23
10.1 Dimensions ....................................................................................................................................... 23
10.2 Minimum technical spaces ................................................................................................................ 24
10.3 Number of connectable indoor units .................................................................................................. 24
10.4 Connection diagram of the system .................................................................................................... 25
10.5 Refrigerant connections .................................................................................................................... 26
10.6 Table with the tightening torques of refrigerator fittings ..................................................................... 26
10.7 Refrigerant connections .................................................................................................................... 26
10.8 Notes on refrigerant pipes preparations ............................................................................................ 26
10.9 Installation of the drain joint and the condensate drain hose ............................................................. 27
10.10 Vaccum pump ................................................................................................................................. 27
10.11 Electrical connections ..................................................................................................................... 28
10.11.1 Specifications of the power supply and cables ............................................................................. 28
10.11.2 Electrical connections diagrams ................................................................................................... 28
11. CHECK AFTER INSTALLATION AND TEST OPERATION ................................................................ 30
11.1 Check after installation ...................................................................................................................... 30
11.2 Test operation ................................................................................................................................... 30
12. TROUBLESHOOTING ........................................................................................................................ 31
12.1 Trouble and causes of air conditioner ............................................................................................... 31
13 MAINTENANCE .................................................................................................................................. 32
13.1 Outdoor condenser ........................................................................................................................... 32
13.2 Drain pipe ......................................................................................................................................... 32
13.4 Maintenance after seasonal use ....................................................................................................... 32
14. SAFETY OPERATION OF FLAMMABLE REFRIGERANT ................................................................. 33
14.1 Installation notes ............................................................................................................................... 33
14.2 Maintenance notes ........................................................................................................................... 33
14.3 Welding ............................................................................................................................................ 33
14.4 Filling the refrigerant ......................................................................................................................... 33
14.5 Safety instructions for transportation and storage ............................................................................. 33
ANNEXES ................................................................................................................................................ 34
1. WIRING DIAGRAMS ............................................................................................................................ 34
18