Mitsubishi Electric CITY MULTI PURY-P-YNW-A-BS Serie Installationshandbuch Seite 3

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 ································································· 9
4. Specifications ······················································································10
5. Package contents ·················································································12
6. Transporting the unit ············································································13
7. Installation location ··············································································14
7-1. Single unit installation .......................................................................................................... 14
7-2. Multiple unit installation ........................................................................................................ 15
8. Foundation work ··················································································17
9. Refrigerant piping work ········································································19
9-1. Restrictions .......................................................................................................................... 19
9-2. Pipe selection....................................................................................................................... 22
9-3. Twinning kit selection ........................................................................................................... 22
9-4. Pipe connection example ..................................................................................................... 23
9-5. Piping connections and valve operations ............................................................................ 28
9-6. Air-tightness test .................................................................................................................. 31
9-7. Thermal insulation for pipes ................................................................................................. 32
9-8. Evacuation of the system ..................................................................................................... 34
9-9. Additional refrigerant charge ................................................................................................ 35
10. Electrical work ···················································································41
10-1. Before electrical work......................................................................................................... 41
10-2. Power cables and device capacity ..................................................................................... 41
10-3. Control cable specifications ............................................................................................... 44
10-4. System configuration ......................................................................................................... 44
10-5. Wiring connections in the control box ................................................................................ 48
10-6. Address setting .................................................................................................................. 53
11. Test run ·····························································································54
11-1. Before a test run ................................................................................................................. 54
11-2. Function setting .................................................................................................................. 55
11-3. Operation characteristics in relation to the refrigerant charge ........................................... 56
11-4. Operation check ................................................................................................................. 56
12. Inspection and maintenance ································································57
13. Rating plate information ······································································58
WT08432X01
GB-1