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1. Safety precautions ...................................................................... 3
1.1. Before installation and electric work ............................... 3
1.2. Before getting installed ................................................... 3
1.3. Before getting installed (moved) - electrical work ........... 4
1.4. Before starting the test run ............................................. 4
2. Combination with indoor units..................................................... 5
3. Confirmation of parts attached ................................................... 5
4. Outdoor unit configuration .......................................................... 6
5. Selection of installation site ........................................................ 6
6. Space required around unit ........................................................ 7
6.1. Individual installation ...................................................... 7
6.2. Collective installation and continuous installation........... 8
7. Lifting method and weight of product .......................................... 8
8. Installation of unit ........................................................................ 9
8.1. Location of anchor bolt ................................................... 9
8.2. Installation ...................................................................... 9
8.3. Connecting direction for refrigerant piping .................... 10
8.4. Noise level .................................................................... 10
9. Caution for snow and seasonal wind ........................................ 11
9.1. Snow and seasonal wind .............................................. 11
9.2. Countermeasure to seasonal wind ............................... 11
10. Refrigerant piping installation .................................................. 12
10.1. Areas of caution .......................................................... 12
10.2. Refrigerant piping system ........................................... 13
10.3. Precautions concerning piping connection and valve
operation ..................................................................... 15
10.4. Oil balance pipe connection method ........................... 18
10.5. Distributor (gas) connection method ........................... 19
10.6. How to install branch pipe ........................................... 20
10.7. Airtight test and evacuation ......................................... 21
10.8. Thermal insulation of refrigerant piping....................... 22
11. Electrical work ......................................................................... 24
11.1. Caution ........................................................................ 24
11.2. Control box and connecting position of wiring............. 25
11.3. Wiring transmission cables ......................................... 27
11.4. Wiring of main power supply and equipment
capacity ....................................................................... 33
12. Test run.................................................................................... 34
12.1. Checking before getting test run ................................. 34
12.2. Test run method .......................................................... 34
12.3. How to cope with test run abnormality ........................ 35
12.4. Coping with remote controller abnormality.................. 37
12.5. The following phenomena do not represent
abnormality (emergency) ............................................ 38
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