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Outdoor Unit Installation Guidelines
● Where a wall or other obstacle is in the path of outdoor unit's intake or exhaust airflow, follow the installation guidelines
below.
● For any of the below installation patterns, the wall height on the exhaust side should be 4ft or less.
Wall facing one side
More than 3-15/16
Side view
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 allowable length per room is 9.8ft.)
Outdoor unit capacity class
Piping to each indoor unit
Total length of piping between all units
Level
difference:
Level
49.2ft max.
difference:
24.6ft max.
If the outdoor unit is positioned higher than the indoor units.
More than 13-3/4
47-1/4
or less
Indoor Unit
Outdoor Unit
Walls facing two sides
More
than
3-15/16
More than
1-15/16
Walls facing three sides
More than 3-15/16
More than 13-3/4
More than 1-15/16
Top view
4MXS32∗
82ft max.
230ft max.
Level
difference:
49.2ft max.
Level
difference:
24.6ft max.
If the outdoor unit is positioned otherwise.
(If lower than one or more indoor units)
More than
13-3/4
More than
1-15/16
Top view
Outdoor Unit
Indoor Unit
Unit: in.
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