LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 - 2020.08
15.1
Preparing the installation site......................................................................................................................................... 50
15.1.1
15.1.2
15.1.3
15.2
Opening and closing the unit.......................................................................................................................................... 58
15.2.1
About opening the units................................................................................................................................. 58
15.2.2
To open the outdoor unit............................................................................................................................... 58
15.2.3
15.2.4
To close the outdoor unit............................................................................................................................... 60
15.3
Mounting the outdoor unit............................................................................................................................................. 61
15.3.1
15.3.2
15.3.3
15.3.4
15.3.5
To provide drainage........................................................................................................................................ 63
16.1
Preparing refrigerant piping ........................................................................................................................................... 64
16.1.1
16.1.2
Refrigerant piping material ............................................................................................................................ 65
16.1.3
16.1.4
To select the piping size ................................................................................................................................. 67
16.1.5
16.1.6
16.2
16.2.1
16.2.2
16.2.3
To handle the stop valve ................................................................................................................................ 72
16.2.4
To handle the service port ............................................................................................................................. 74
16.2.5
Tightening torques ......................................................................................................................................... 75
16.3
Connecting the refrigerant piping .................................................................................................................................. 75
16.3.1
16.3.2
16.3.3
To remove the spun pipes.............................................................................................................................. 77
16.3.4
16.3.5
To braze the pipe end..................................................................................................................................... 80
16.3.6
Guidelines to connect T-joints ....................................................................................................................... 81
16.3.7
Guidelines to install a dryer............................................................................................................................ 82
16.3.8
16.3.9
16.4
Checking the refrigerant piping...................................................................................................................................... 83
16.4.1
16.4.2
16.4.3
16.4.4
To perform a leak test .................................................................................................................................... 85
16.4.5
To perform vacuum drying............................................................................................................................. 86
16.5
Insulating the refrigerant piping..................................................................................................................................... 87
17.1
About electrical compliance ........................................................................................................................................... 88
17.2
Field wiring: Overview .................................................................................................................................................... 89
17.3
17.4
17.5
17.6
Connections to the outdoor unit.................................................................................................................................... 93
17.6.1
17.6.2
17.7
17.7.1
17.7.2
18.1
About charging refrigerant ............................................................................................................................................. 101
18.2
About the refrigerant...................................................................................................................................................... 101
18.3
18.4
18.5
To charge refrigerant ...................................................................................................................................................... 106
Table of contents
50
64
88
101
107
Installer and user reference guide
3