Electra KN 24 RC, Service Manual

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Flaring the nuts
• Put the connecting tubing at the proper
position, wrench the nuts with hands, then
fasten it with a wrench. (Refer to Chart 24)
CAUTIONS
Too large torque will harm the bellmouthing and
too small will cause leakage. Please determine
the torque according to Table 2.
10
Lean Crude Burr
Chart 22 Chart 23
Chart 24
1. Cut a pipe with a pipe cutter.
2. Insert a flare nut into a pipe and flare the
pipe.
Table 2
Outside-diameter A (mm)
(mm) Mak Min
6.35 8.7 8.3
9.53 12.4 12.0
2.7 15.8 15.4
16 19.0 18.6
19 23.3 22.9
Tubing
Torque
Size
M6.35 1420-1720 N cm (144 - 176 kgf cm)
M9.53 3270-3990 N cm (333 - 407 kgf cm)
M12.7 4950-6030 N cm (504 - 616 kgf cm)
M16 6180-7540 N cm (630-770 kgf cm)
M19 9720-11860 N cm (990-1210 kgf cm)
Flaring
Use the market brass pipe
• Be sure to use the same insulating materials when you buy the brass pipe.
2. Locate The Pipes
• Drill a hole in the wall (suitable just for the size of the wall conduit, 50,53,71 series diameter is
M90mm, and 120 series diameter is M105mm in general), then set on the fittings such as the wall
conduit and its cover.
• Bend 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 pipe.
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 the tapes to prevent leakage .
SZ000289/En 06/23/2004, 2:39 PM 22