- (05-18) -
SY
ST
EM
DE
SIGN
SY
ST
EM
DE
SIGN
(3) If the diameter of the connection piping is too large, use a pipe cutter to cut as shown below.
Cut in the center of the connections
Locally procured
• Always use a pipe cutter.
• After cutting, remove the burr and clean the cut section.
(4) Positioning of branch pipes
• If it is placed horizontally, keep it within ± 15°.
Otherwise, it will not separate the refrigerant evenly, causing a reduction in performance.
Twin connection type
Triple connection type ( Liquid )
Triple connection type ( Gas )
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+15°
°
5
1
+
°
5
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-15°
°
5
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°
5
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• Place the branch pipe in a horizontal position as far as possible. Only place the branch pipe as shown below during
unavoidable circumstances.
Twin connection type
Triple connection type
Triple connection type
( Liquid )
( Gas )
Horizontal
position
Horizontal
position
Horizontal
position
• When connecting the main piping, do not bend it near the connection section.
If the main pipe must be bent due to unavoidable circumstances, ensure that the linear section is 10 times or more
than the diameter of the connection piping.
Twin connection type
Triple connection type ( Liquid )
Triple connection type ( Gas )
Main pipe
Main pipe
Main pipe
Straight pipe =
(D x 10) and above
Straight pipe =
(D x 10) and above
Straight pipe =
(D x 10) and above
to outdoor unit
to indoor unit
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ØD
ØD
ØD
R
R
R
to outdoor unit
to indoor unit
to indoor unit
to outdoor unit
