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Infiniton SPLIT-3725DM Manual De Usuario página 72

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Tighten the flare nut as tightly as possible by
2.
hand.
Using a spanner, grip the nut on the unit
3.
tubing.
While firmly gripping the nut on the unit
4.
tubing, use a torque wrench to tighten the
flare nut according to the torque values in the
Torque Requirements table below. Loosen
the flaring nut slightly, then tighten again.
Outer Diameter of Pipe
(mm)
Ø 6.35 (Ø 0.25")
Ø 9.52 (Ø 0.375")
Ø 12.7 (Ø 0.5")
Ø 16 (Ø 0.63")
Ø 19 ( Ø 0.75")
DO NOT USE EXCESSIVE TORQUE
Excessive force can break the nut or damage the refrigerant piping. You must not exceed
torque requirements shown in the table above.
Instructions for Connecting Piping to Outdoor Unit
Unscrew the cover from the packed valve on
1.
the side of the outdoor unit.
Remove protective caps from ends of valves.
2.
Align flared pipe end with each valve, and
3.
tighten the flare nut as tightly as possible by
hand.
Using a spanner, grip the body of the valve.
4.
Do not grip the nut that seals the service
valve.
While firmly gripping the body of the valve,
5.
use a torque wrench to tighten the flare nut
according to the correct torque values.
Page 31
TORQUE REQUIREMENTS
Tightening Torque
(N•m)
18~20(180~200kgf.cm)
32~39(320~390kgf.cm)
49~59(490~590kgf.cm)
57~71(570~710kgf.cm)
67~101(670~1010kgf.cm)
Valve cover
Flare dimension(B)
(mm)
8.4~8.7 (0.33~0.34")
13.2~13.5 (0.52~0.53")
16.2~16.5 (0.64~0.65")
19.2~19.7 (0.76~0.78")
23.2~23.7 (0.91~0.93")
Loosen the flaring nut slightly, then tighten
6.
again.
Repeat Steps 3 to 6 for the remaining pipe.
7.
USE SPANNER TO GRIP MAIN
BODY OF VALVE
Torque from tightening the flare nut can snap
off other parts of valve.
Flare shape
90 ° ± 4
B
R0.4~0. 8

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