Olimpia splendid NEXYA S3 Manual De Usuario página 53

Be sure to with insulating materials cover all the exposed parts of the flare pipe joints and refrigerant pipe on the
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liquid-side and the gas-side. Ensure that there is no gap between them.
CAUTION
Incomplete insulation may cause water condensation.
IV. 6.6 Refrigerant piping
1. Flaring
a) Cut a pipe with a pipe cutter
b) Insert a flare nut into a pipe and flare the pipe.
2. Connect the indoor unit at first, then the outdoor unit.
Bend the tubing in proper way. Do not harm to them.
 The bending angle should not exceed 90°.
 Do not bend the pipe more than three times.
 When connecting the flare nut, coat the flare both inside and outside with either oil or ester oil and initially tighten by
hand 3 or 4 turns before tightening firmly.
 Be sure to use both a spanner and torque wrench together when connecting or disconnecting pipes to /from the unit.
Too large torque will harm the bell mouthing and too small will cause leakage. Please determine the
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torque according to Table below.
CAUTION
After the connecting work is finished, be sure to check that there is no gas leak.
Oblique Roughness Burr
90°
Flare dimension A (mm)
Outer diameter
Min
Ф6.35
Ф9.52 12.0
Ф12.7 15.4
Ф15.9 18.6
Ф19.1 22.9
Bend the pipe with thumb
min-radius 100mm
Fig. 6-8
Fig. 6-9
Fig. 6-10
Fig. 6-7
Max
8.3 8.7
12.4
15.8
19.0
23.3
A
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