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• Check the strength and level of the installation ground so that the unit will not cause any operating vibration or
noise after installed.
• In accordance with the foundation drawing in x the unit securely by means of the foundation bolts. (Prepare four
sets of M8 or M10 foundation bolts, nuts and washers each which are available on the market.)
• It is best to screw in the foundation bolts until their length are 20mm from the foundation surface.
• Where a wall or other obstacle is in the path of outdoor unit's intake or exhaust airow, follow the installation
guidelines below.
• For any of the below installation pattems, the wall height on the exhaust side should be 1200mm or less.
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 x the unit securely by means of the foundation bolts.
• It is best to screw in the foundation bolts until their length are 20 mm from the foundation surface.
2.Selecting a location for lnstallation of the lndoor Units
• The maxinum 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 3m)
Precautions on Installation
Outdoor Unit lnstallation Guideline
Limitations on the Installation
20
Outdoor Unit Capacity Class 3U55S2SR2FA 3U70S2SR2FA 4U75S2SR2FA 4U85S2SR2FA 5U105S2SS2FA
Piping to Each Indoor Unit 25m max. 25m max. 25m max. 25m max. 25m max.
Total Length of Piping
between all Units
50m max. 60m max. 70m max. 70m max. 80m max.
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