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Outdoor Unit Installation Guideline
• Where a wall or other obstacle is in the path of outdoor unit’s inlet or outlet airflow, follow the installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 1200mm or less.
Selecting a Location for Installation of
the Indoor Units
• The maximum allowable length of refrigerant piping, and the maximum allowable height difference between the outdoor and
indoor units, are listed below.
(The shorter the refrigerant piping, the better the performance. Connect so that the piping is as short as possible. Shortest allow-
able length per room is 3m.)
Outdoor unit capacity class
3MXS40, 3MXS52, 3AMX52
Piping to each indoor unit 25m max.
Total length of piping between all units 50m max.
If the outdoor unit is positioned higher than the
indoor units.
If the outdoor unit is positioned otherwise.
(If lower than one or more indoor units)