6 | Unit installation
Installer reference guide
28
2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
4P600463-7G – 2022.09
It is recommended to provide at least 150 mm of free space below the unit
(300mm for heavy snowfall areas). Additionally, make sure the unit is positioned at
least 100mm above the maximum expected level of snow. If necessary, construct
a pedestal. See "6.3Mounting the outdoor unit"[428] for more details.
In heavy snowfall areas it is very important to select an installation site where the
snow will NOT affect the unit. If lateral snowfall is possible, make sure that the heat
exchanger coil is NOT affected by the snow. If necessary, install a snow cover or
shed and a pedestal.
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
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover is removed.
6.2.2 To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
6.3 Mounting the outdoor unit
6.3.1 About mounting the outdoor unit
When
The outdoor and indoor unit must be mounted before the refrigerant piping can be
connected.
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