GCHV CHV Mini Series, Руководство по обслуживанию, Страница: 95 / 128

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CHV
Mini
Series
Ser
vice
Manual
CHV Mini VRF 50/60Hz
Outer
Diameter
(mm)
A(mm)
Maximum Minimum
Φ6.35 8.7 8.3
Φ9.52 12.4 12.0
Φ12.7 15.8 15.4
Φ15.88 19.0 18.6
Inclined
Rough
Burr
2) Fastening nut
Align the connecting pipe, tighten it by hand, and
then by awrench.
Pipe Dimension
(mm)
Tightening Torque (Nm)
Φ6.35
14.2
～
17.2(144
～
176 kgf•cm)
Φ9.52
32.7
～
39.9(333
～
407 kgf•cm)
Φ12.7
49.5
～
60.3(504
～
616 kgf•cm)
Φ15.88 61.8
～
75.4(630
～
770 kgf•cm)
3. Piping Installation
3.1 Piping connection
(1) Flaring
Use a pipe cutter to cut the refrigerant pipe and a pipe
expander to flare
3.2 Set refrigerant pipe dimension and pipe connecting steps
Name of Pipes
Connecting Position of Pipe
Code
Main pipe Pipe between the outdoor unit and the first distributor at the indoor unit side
L
1
Main pipe of indoor unit
Pipe behind the first distributor at the indoor side and indirectly connected
to the indoor unit
L
2~
L
5
Branch pipe of indoor unit Pipe behind the distributor and directly connected to the indoor unit
A,b,c,d,e,f
Distributor components of
indoor unit
Pipe components to connect the main pipe, main branch pipe and branch pipe A,B,C,D,E