1 General Information ............................................................................................................................... 1

1.1 General Notes................................................................................................................................. 1

1.2 General Safety ................................................................................................................................ 1

2 Safety ..................................................................................................................................................... 4

2.1 Applied Symbols ............................................................................................................................. 4

2.2 Additional Information ..................................................................................................................... 4

3 Important Notice ..................................................................................................................................... 6

4 Transportation and Handling .................................................................................................................. 7

5 Before Operation .................................................................................................................................... 7

5.1 Line-up of Outdoor Units................................................................................................................. 7

5.2 Factory-supplied Unit Components ................................................................................................. 7

6 General Dimensions ............................................................................................................................. 8

7 Unit Installation ..................................................................................................................................... 9

7.1 Installation Space ........................................................................................................................... 9

7.2 Installation Place Provision ........................................................................................................... 11

7.3 Drain Piping .................................................................................................................................. 12

8 Refrigerant Piping Work ..................................................................................................................... 12

8.1 Piping Materials ............................................................................................................................ 12

8.2 Piping Size .................................................................................................................................... 13

8.3 Piping Connection ......................................................................................................................... 14

8.4 Air-tightness Test .......................................................................................................................... 15

8.5 Vacuum Pumping and Refrigerant Charge.................................................................................... 15

8.6 Refrigerant Charging Quantity .......................................................................................................15

8.7 Caution of The Pressure by Check Joint ....................................................................................... 16

9 Electrical Wiring.................................................................................................................................... 17

9.1 General Check .............................................................................................................................. 17

9.2 Common Wiring ............................................................................................................................ 17

9.3 Electrical Wiring Connection for Outdoor Units ............................................................................ 18

9.4 Wiring Size and Main Switch Protection ....................................................................................... 19

9.5 Setting of Dip Switches ................................................................................................................. 21

10 Test Run ............................................................................................................................................. 21

11 Main Safety Devices ........................................................................................................................... 22

12 Technical Parameters ....................................................................................................................... 23

TABLE OF CONTENTS