6 | Installation
Installer reference guide
28
3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1B – 2020.05
6 Installation
WARNING
Installation shall be done by an installer, the choice of materials and installation shall
comply with the applicable legislation. In Europe, EN378 is the applicable standard.
6.1 Overview: Installation
This chapter describes what you have to do and know on-site to install the system.
Typical workflow
Installation typically consists of the following stages:
1 Mounting the outdoor unit.
2 Connecting the refrigerant piping.
3 Checking the refrigerant piping.
4 Charging refrigerant.
5 Connecting the electrical wiring.
6 Finishing the outdoor installation.
INFORMATION
For installation of the indoor unit (mounting the indoor unit, connecting the
refrigerant piping to the indoor unit, connecting the electrical wiring to the indoor
unit …), see the installation manual of the indoor unit.
INFORMATION
Depending on the units and/or the installation conditions, it might be necessary to
connect electrical wiring before you can charge refrigerant.
INFORMATION
It is NOT possible to connect an indoor unit of 1 room only. Be sure to connect
indoor units of at least 2 rooms.
The Hybrid for Multi or the DHW generator for Multi are considered as 1 room
connection.
For the correct combination, see the combination table and the installation manual
of the Hybrid for Multi or the DHW generator for Multi.
6.2 Opening the unit
6.2.1 About opening the unit
At certain times, you have to open the unit. Example:
▪ When connecting the refrigerant piping
▪ When connecting the electrical wiring
▪ When maintaining or servicing the unit
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