en
CONTENTS
1. Safety precautions ················································································ 2
1-1. General precautions...............................................................................................................2
1-2. Precautions for transporting the unit ......................................................................................3
1-3. Precautions for unit installation ..............................................................................................4
1-4. Precautions for piping work....................................................................................................4
1-5. Precautions for electrical wiring .............................................................................................5
1-6. Precautions for relocating or repairing the unit ......................................................................5
1-7. Additional precautions ............................................................................................................6
2. About the product ················································································· 8
3. Combination of outdoor units ································································· 8
4. Specifications ······················································································· 8
5. Package contents ·················································································· 8
6. Transporting the unit ············································································· 9
7. Installation location ··············································································10
7-1. Single unit installation ..........................................................................................................10
7-2. Multiple unit installation ........................................................................................................ 11
8. Foundation work ··················································································13
9. Refrigerant piping work ········································································15
9-1. Restrictions ..........................................................................................................................15
9-2. Pipe selection.......................................................................................................................17
9-3. Twinning kit selection ...........................................................................................................18
9-4. Pipe connection example .....................................................................................................18
9-5. Piping connections and valve operations ............................................................................20
9-6. Air-tightness test ..................................................................................................................22
9-7. Thermal insulation for pipes .................................................................................................23
9-8. Evacuation of the system .....................................................................................................25
9-9. Additional refrigerant charge ................................................................................................26
10. Electrical work ···················································································28
10-1. Before electrical work.........................................................................................................28
10-2. Power cables and device capacity .....................................................................................28
10-3. Control cable specifications ...............................................................................................30
10-4. System configuration .........................................................................................................30
10-5. Wiring connections in the control box ................................................................................31
10-6. Address setting ..................................................................................................................33
11. Test run ·····························································································34
11-1. Before a test run .................................................................................................................34
11-2. Function setting ..................................................................................................................35
11-3. Operation characteristics in relation to the refrigerant charge ...........................................35
11-4. Operation check .................................................................................................................35
12. Inspection and maintenance ································································36
13. Rating plate information ······································································37
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