Fujitsu Airstage AJT040LCLAH - Indoor Unit Pipe Connections; Opening the Knockout Hole

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5. 3. Opening the knockout hole
CAUTION
Be careful not to deform or scratch the panel while opening the knockout holes.
To protect the piping insulation after opening a knockout hole, remove any burrs
from the edge of the hole. It is recommended to apply rust prevention paint to the
edge of the hole.
• Pipes can be connected from 4 directions, front, lateral side, rear side and bottom.
(Fig. A)
• When connecting at the bottom, remove the service panel and piping cover on the
front of the outdoor unit, and open the knockout hole provided at the bottom corner of
the piping outlet.
• It can be installed as shown on “Fig. B” cutting out the 2 slits as indicated on “Fig. C”.
(When cutting slits, use a steel saw.)
Service panel
Fig. A
Slit
Slit
Fig. B
Bottom
connection
Fig. C
Front
connection
Bottom
connection
Lateral
connection
Rear
connection
5. 2. Indoor unit pipe connections
CAUTION
For details, refer to the Installation Instruction Sheet of each part.
Separation tube
A
B
A
B
B
A
GOOD
Horizontal
Vertical
Horizontal line
or
± 15°
A : Outdoor unit or Refrigerant branch kit
B : Indoor unit or Refrigerant branch kit
PROHIBITED
Header
C
H
1
α 1
β
1
D
H
2
α
2
β2
GOOD
Horizontal line
Horizontal
line
VIEW D
VIEW C
Horizontal
line
Vertical
line
Gas pipe
Liquid pipe
Outdoor
unit side
Outdoor
unit side
H
1
= 0 to 10 mm
H
2
= 0 to 10 mm
PROHIBITED
PROHIBITED
(α
1
: 0° to 1°)
β
1
: -10° to 10°
(α
2
: 0° to 1°)
β
2
: -10° to 10°
CAUTION
Do not connect a separation tube after a header.
Leave the distance 0.5 m or more for straight part to branch tube and header.
Main pipe
0.5 m or more
To in d o o r un it
To in d o o r un it
To in d o o r un it
Main pipe
0.5 m or more
To in d o o r
unit
Separation tube
or
Header
0.5 m or more
0.5 m or more
To in d o o r un it
or
Header
Separation tube
To in d o o r
unit
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