CLIVET CN-XMi D112, Инструкция по установке и эксплуатации

Страница: 20 / 68

Check all the joints with the leak detector or soap water. (See
Fig.9-6 as a reference illustration)
Be sure to with insulating materials cover all the exposed parts
of the flare pipe joints and refrigerant pipe on the liquid-side and
the gas-side. Ensure that there is no gap between them.
Incomplete insulation may cause water condensation.
9.2 Check The Leakage
9.3 Insulation
B A
D C
Check-point of indoor unit
Check-point of outdoor unit
A. Lo-stop valve B. Hi-stop valve
C,D. Joints of the connecting pipe to the indoor unit.
Fig.9-2
9. REFRIGERANT PIPE CONNECTION
9.1 Expel The Air
Fig.9-1
Pass the bound connecting pipe through the wall conduit from
outside. Be careful of the pipe all ocation to do no damage to the
tubing.
Connect the pipes.
Then, open the stem of stop valves of the outdoor unit to make
the refrigerant pipe connecting the indoor unit with the outdoor
unit fluently flow.
Be sure of no leakage by checking it with leak detector or soap
water.
Cover the joint of the connecting pipe to the indoor unit with the
sound proof/insulating sheath (fittings), and bind it well with the
tapes to prevent leakage.
Ɣ
Ɣ
Ɣ
Flaring
Cut a pipe with a pipe cutter.
Insert a flare nut into a pipe and flare the pipe.
90
lean crude burr
A
90+4
_
45+2
_
Outside diameter
A(mm)
Max
8.7
ĭ
6.4mm
ĭ 9.5mm
ĭ 12.7mm
ĭ 15.9mm
ĭ 19.1mm
12.4
15.8
19.0
23.3
8.3
12.0
15.4
18.6
22.9
Min
Table.9-1
Fig.9-3
Fig.9-4
Torque Tubing size
14.2~17.2N.m(144~176kgf.cm)
32.7~39.9N.m(333~407kgf.cm)
49.5~60.3N.m(504~616kgf.cm)
61.8~75.4N.m(630~770kgf.cm)
97.2~118.6N.m(990~1210kgf.cm)
ĭ 6.4mm
ĭ 9.5mm
ĭ
12.7mm
ĭ 15.9mm
ĭ 19.1mm
Table.9-2
Ɣ
Ɣ
Ɣ
The necessary filling amount of refrigerant
Refrigerant volume to be added is calculated according to
outdoor unit installation manual .Be sure to add refrigerant
measuring by a scale. L: The length of the pipe
Please record the quantity added and store it carefully for
future maintenance.
Expel the air with a vacuum pump (Refer to
Fig.9-4 ) (Please
refer to its manual for the way of using manifold valve)
Loosen and remove the maintenance nuts of stop valves A
and B, and connect the charge hose of the manifold valve
with the maintenance terminator of stop valve A. (Be sure
that stop valves A and B are both closed)
Ɣ
Ɣ
Fasten the nut
Put the connecting tubing at the proper position, wrench the
nuts with hands then fasten it with a wrench. (Refer to
Fig.9-4
Too large torque will harm the bellmouthing and too small will
cause leakage. Please determine the torque according to
Table.9-2.
&1;0L'' ,QVWDOODWLRQPDQXDO