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Bend the connecting pipe of small wall thickness (Φ 9.53 mm)
• Cut out a desired concave at the bending part of the insulating pipe.
• Then expose the pipe (cover it with tapes after bending).
• To prevent collapsing or deforming, please bend the pipe at its biggest radius.
• Use bender to get a small radius pipes.
Use the market brass pipe
• Be sure to use the same insulating materials when you buy the brass pipe (more than 9mm thick).
2. Locate The Pipes
• Drill a hole in the wall (suitable just for the size of the wall conduit, 53, 71 series diameter is Φ90mm,
and 120, 105, 140 series diameter is Φ105 in general), then set on the fittings such as the wall
conduit and its cover.
• Bind the connecting pipe and the cables together tightly with binding tapes. Do not let air in, which
will cause water leakage by condensation.
• Pass the bound connecting pipe through the wall conduit from outside. Be careful of the pipe
allocation to do no damage to the tubing.
3. Connect the pipes.
4. Then, open the stem of stop values of the outdoor unit to make the refrigerant pipe
connecting the indoor unit with the outdoor unit in fluent flow.
5. Be sure of no leakage by checking it with leak detector or soap water.
6. Cover the joint of the connecting pipe to the indoor unit with the soundproof / insulating
sheath (fittings), and bind it well with the tapes to prevent leakage.
Flaring
Fasten the nuts
• Put the connecting tubing at the proper
position, wrench the nuts with hands, then
fasten it with a wrench. (Refer to Chart24)
1. Cut a pipe with a pipe cutter.
2. Insert a flare nut into a pipe and flare the pipe.
Outside-diameter
(mm)
6.35
9.53
12.7
16
19
CAUTION
Too large torque will harm the bellmouthing and
too small will cause leakage. Please determine
the torque according to Table 2.
Tubing Size
6.35
1420~1720 N · cm (144~176kgf · cm)
9.53
3270~3990 N · cm (333~407kgf · cm)
12.7
4950~6030 N · cm (504~616kgf · cm)
16
6180~7540 N · cm (630~770kgf · cm)
19
9720~11860 N · cm (990~1210kgf · cm)
Table 2
14
A(mm)
Max
Min
8.3
8.3
12.4
12.0
15.8
15.4
19.0
18.6
23.3
22.9
Torque
(kg)
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