RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B - 2021.12
10.2.7
10.2.8
10.2.9
13.1
Overview: About the box ................................................................................................................................................ 48
13.2
Compressor unit.............................................................................................................................................................. 48
13.2.1
To unpack the compressor unit ..................................................................................................................... 48
13.2.2
To handle the compressor unit ...................................................................................................................... 49
13.2.3
13.2.4
13.2.5
13.3
Heat exchanger unit........................................................................................................................................................ 51
13.3.1
13.3.2
13.3.3
13.3.4
14.1
14.2
Identification ................................................................................................................................................................... 53
14.2.1
14.2.2
14.3
14.4
System layout.................................................................................................................................................................. 55
14.5
Combining units and options.......................................................................................................................................... 55
14.5.1
14.5.2
14.5.3
15.1
Preparing the installation site......................................................................................................................................... 60
15.1.1
15.1.2
15.2
Opening the unit ............................................................................................................................................................. 63
15.2.1
About opening the units................................................................................................................................. 63
15.2.2
To open the compressor unit......................................................................................................................... 63
15.2.3
15.3
Mounting the compressor unit....................................................................................................................................... 64
15.3.1
15.3.2
15.4
Mounting the heat exchanger unit................................................................................................................................. 65
15.4.1
15.4.2
16.1
Preparing refrigerant piping ........................................................................................................................................... 66
16.1.1
16.1.2
Refrigerant piping material ............................................................................................................................ 67
16.1.3
To select the piping size ................................................................................................................................. 67
16.1.4
16.1.5
16.2
Connecting the refrigerant piping .................................................................................................................................. 71
16.2.1
16.2.2
Table of Contents
45
46
47
48
53
60
66
Installer and user reference guide
3