OUTDOOR INSTALLATION GUIDELINE
INSTALLING OUTDOOR UNIT
ENGLISH
• 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 1200mm or less.
ARXC20/25/35
More than 50
More than 100
More than
150
More than 150
1200
or less
More than
100
More than 300
More
than 50
More
than 50
More than
50
Side view
ARXC50/60/71
Top view
Top view
More than 100
More than 350
More
More than
More than 100
1200
or less
than 100
350
More than
50
More than 350
More
than 50
More
than 50
Side view
Top view
Top view
All dimensions are in mm
DRAIN WORK
1) Use drain socket for drainage and attach drain cap.
2) If the drain port is covered by a mounting base or floor surface,
place additional foot bases of at least 30mm (1-3/16") in height
under the outdoor unit’s feet.
3) In cold areas, do not use a drain socket, hose and caps with the
outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Drain water hole
Bottom frame
Bottom frame
Drain cap
Drain socket
Hose (available commercially, inner dia.
5/8" (16mm))
Pinch the bottom
frame in.
CAUTION
If the unit is installed in a cold climate, take adequate
measures so that the evacuated condensate CANNOT freeze.
FLARING THE PIPE END
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface facing downward so that the
chips do not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
WARNING
• Do not use mineral oil on flared part.
• Prevent mineral oil from getting into the system as this would
reduce the lifetime of the units.
• Never use piping which has been used for previous installations.
• Only use parts which are delivered with the unit.
• Do never install a drier to this unit in order to guarantee its lifetime.
• The drying material may dissolve and damage the system.
• Incomplete flaring may cause refrigerant gas leakage.
(Cut exactly at
right angles.)
Remove burrs.
Flaring
Set exactly at the position shown below.
A
A (mm)
Pipe Size,
Flare Tool for Conventional flare tool
mm (in)
R32/R410A
Die
Clutch-type
Clutch-type Wing-nut type
(Ridgid-type) (Imperial-type)
6.4 (1/4") 0-0.5
1.0-1.5
1.5-2.0
9.5 (3/8") 0-0.5
1.0-1.5
1.5-2.0
12.7 (1/2") 0-0.5
1.0-1.5
2.0-2.5
15.9 (5/8") 0-0.5
1.0-1.5
2.0-2.5
19.1 (3/4") 0-0.5
1.0-1.5
2.0-2.5
Flare’s inner surface
must be flaw-free
Check
The pipe end must be evenly
flared in a perfect circle.
Make sure that the flare nut is fitted.
CAUTION
Do not reuse joints which have been used once already.
9
Walls facing three sides
Walls facing two sides
Wall facing one side
Walls facing three sides
Walls facing two sides
Wall facing one side
