Midea MOB01-09HFN8-QRD6GW, Руководство по установке

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6. Place flaring tool onto the form.
7. Turn the handle of the flaring tool clockwise until
the pipe is fully flared. Flare the pipe in accordance
with the dimensions shown in table 7-3.
Table 7.3: PIPING EXTENSION BEYOND FLARE FORM
Pipe
gauge Tightening
torque
Flare dimension (A) Flare shape
Min. Max .
14.2-17.2 N.m
(144-176 kgf.cm)
R0.4~0.8
45
°±
2
90
°
±
4
A
Fig. 7.6
32.7-39.9 N.m
(333-407 kgf.cm)
49.5-60.3 N.m
(504-616 kgf.cm)
61.8-75.4 N.m
(630-770 kgf.cm)
97.2-118.6 N.m
(990-1210 kgf.
cm)
8. Remove the flaring tool and flare form, then inspect
the end of the pipe for cracks and even flaring.
Step 4: Connect pipes
Connect the copper pipes to the indoor unit first, then
connect it to the outdoor unit. You should first connect the
low-pressure pipe, then the high-pressure pipe.
1. When connecting the flare nuts, apply a thin coat
of refrigeration oil to the flared ends of the pipes.
2. Align the center of the two pipes that you will
connect.
Indoor unit tubing
Flare nut
Pipe
Fig. 7.7
3. Tighten the flare nut as tightly as possible by hand.
4. Using a spanner, grip the nut on the unit tubing.
5. While firmly gripping the nut, use a torque wrench
to tighten the flare nut according to the torque
values in table 7-.3.
NOTE: Use both a spanner and a torque wrench when
connecting or disconnecting pipes to/from the unit.
Fig. 7.8
C AUTION
Check to make sure there is no refrigerant leak after
completing the installation work. If there is a refrigerant
leak, ventilate the area immediately and evacuate
the system (refer to the Air Evacuation section of this
manual).
Refrigerant Piping
Connection
109.5-133.7 N.m
(1117-1364 kgf.
cm)
(Unit: mm)

Page
19 
8.3 8.3
12.4 12.4
15.4 15.8
18.6 19
22.9 23.3
27 27.3