6 | Unit installation
Installer reference guide
25
2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
4P600463-7G – 2022.09
WARNING
The appliance shall be stored so as to prevent mechanical damage and in a well-
ventilated room without continuously operating ignition sources (e.g. open flames,
an operating gas appliance, or an operating electric heater). The room size shall be as
specified in the General safety precaution.
6.1.1 Installation site requirements of the outdoor unit
INFORMATION
Also read the following requirements:
▪ "2General safety precautions"[47].
▪ "7.1.3Refrigerant piping length and height difference"[434].
Mind the following spacing guidelines:
>100
>50
>350
(mm)
b
a
>100
>50
b
a
>100
b
a
b
a
>350
>350
>50
b
a
≤1200
>100 >350
a
b
a Air outlet
b Air inlet
Allow 300mm of work space below the ceiling surface and 250mm for piping and
electrical servicing.
NOTICE
The height of the wall on the outlet side of the outdoor unit MUST be ≤1200mm.
NOTICE
▪ Do NOT stack the units on each other.
▪ Do NOT hang the unit on a ceiling.
Strong winds (≥18km/h) blowing against the outdoor unit’s air outlet causes short
circuit (suction of discharge air). This may result in: