EAS Electric ECIN Series, Инструкция по эксплуатации

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13
5
.
Install Connecting Pipes and Electronic Throttle
5
-
1 Requirements for the connecting length and drop height of the tubing of both
indoor and outdoor units
)
1 Please refer to the allowed length of tubing in the instruction of outdoor unit.
2
)
Please refer to the allowed drop height of tubing in the instruction of outdoor unit.
5
-
2 Material and Size of Tubing
5
-
3 Procedures for Connecting Pipes
Notice Notice
!

During the installation process, keep the air, dust and other impurities from getting into the pipeline
system.

Fix indoor and outdoor units before installing the connecting pipe.
 Keep dry while installing the connecting pipe and keep the water from getting into the pipeline system.

Connecting pipe must be wrapped by heat insulator. (Usually, the thickness is more than 10 mm, and it
is even thicker in closed humid area.)
5
-
3
-
1 Measure the needed length of connecting tubing, and make connecting tubing according to the
flowing methods. (For details, see the “Tubing Connection” column)
Connect the indoor unit before connecting the outdoor unit.
a
.
Pay attention to the configuration of winding tubing so as not to damage the tubing and its
insulation layer.
b
.
Smear the refrigerator oil (it must be engine oil which is compatible with the cooling medium of this
type) on the outside surface of flared joint and the conical surface of connecting nut and screw it 3 or 4
rounds with your hand (Fig. 5.1) before screwing the flared nut up.
c
.
Use two spanners at the same time when connecting or taking the tubing down.
d
.
The interface of indoor unit can't bear all the weight of the connecting tubing, because if the
interface is over-burdened, it will affect the cooling or heating effects of indoor unit.
2
)
The stop valve of outdoor unit should be completely shut down (as the default state when leaving the
factory). Unscrew the nut from the stop valve and connect the flared tube at once (within 5 minutes).
3
)
After connecting the refrigerant tubing to both indoor and outdoor units, eliminate the air according to
the column of “ ”, then screw the nut up.
a
.
Notes for flexible coupling:
①
The winding angle should be less than 90°(Fig. 5.2).
②
Its sinuosity had better be in the centre of the pipe range, its bending radius should be more than
3.5 D (the diameter of pipeline)
.
③
Don't bend the flexible coupling pipe for more than 3 times.
Vacuum Supply
Smear refrigeration oil
Figure 5.1
Bend pipe with thumbs
Figure 5.2
Table 5.1
Type Type
Liquid pipes
(
mm
)
Liquid pipes
(
mm
)
Gas pipes
(
mm
)
Gas pipes
(
mm
)
3
.
2kW
～
5
.
6kW 2
.
2kW
～
2
.
8kW 7
.
1kW
～
8
.
0kW 9
.
0kW
～
16
.
0kW
φ
6
.
35
×
0
.
8
φ
9
.
52
×
0
.
8
φ
12
.
7
×
0
.
8
φ
9
.
52
×
0
.
8
φ
15
.
88
×
1
.
0
V.2