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Matching of the indoor and outdoor units
Before inserting power plug into receptacle, check the voltage without fail. The power source is the
same as the corresponded name plate.
Install an exclusive branch circuit of the power.
A receptacle shall be set up in a distance where the power cable can be reached. Do not extend the
cable by cutting it.
Power source
Limitations on the installation
2.Selecting a location for installation of the indoor units
The maxinum allowable length of refrigerant piping, and the maxmum 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 3m)
1.Precautions on installation
Check the strength and level of the installation ground so that unit will not cause any operating vibration
or noise after installation.
In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts.
It is best to screw in the foundation bolts unit their length are 20 mm from the foundation surface.
WARNING!
Combinations those marked * can not be applied where the temperature in winter is too low and in
summer is too higher to avoid bad heating or cooling effect.
AU222XFERA
Combination
A
B C
Remark
07 1
4
09
12
09 1
4
12
12
07 07 09
07 07 12
07 09 09
07 09 12
09 09 09
09 09 12
1:2
1:3
*
*
*
09 12 12
*
AU182XFERA
Combination
A
B C
Remark
07 12
09 09
09 12
12
12
07 07 07
07 07 09
07 07 12
07 09 09
07 09 12
09 09 09
09 09 12
1:2
1:3
*
*
*