Haier AB092ACBHA, Service Manual

Page: 171 / 365

11. Refrigerant pipe
[The air side pipe, liquid side pipe must be faithfully heat insulated, if no heat insulation, it may cause water leakage.]
The outdoor unit has been charged with refrigerant.
When connect the pipe to the unit or dismantling the pipe from the unit, please follow the figure shown,use
spanner and torque spanner together.
When connect cone nut, the inner side and outside of cone nut should paste with refrigerant oil. Use hand to
twist 3-4 rings, then fasten with spanner.
Referring to Table I to confirm the fasten torque. (too tight may damage nut leading to leakage)
Check if the connection pipe leaks, then do heat insulation treatment, as below figure shown.
Only use seal cushion to bind the joint part of air pipe and heat insulation parts.
The example of the method of choosing capacity number:
1) If the unit is in high-speed operation, needing take outer static pressure is 180Pa in capacity air volume 34m
3
/min as working
condition point, according to Figure II “The characteristic chart of air volume”, the capacity numberof fan controller is No. 2.
2) If the unit is in low speed operation, needing take outer static pressure is 60Pa in capacity air volume 32m
3
/min as working
condition point, according to Figure II “The characteristic chart of air volume”, the capacity number of fan controller is No. 4.
Liquid pipe
Gas pipe
Electric box
Upper
Air inlet Air outlet
Down side
Drain hose connection mouth
VP25 PVC pipe
310
30
530
80 510
Rotate this switch
(capacity number
setting:
No. 1 ~ No. 8)
Once the fan controller
has trouble, this linker
can perform emergency
assistant control. When
this linker is connected
to the linker from the
PCB, it can operate with
total load.
When this linker is
connected to the linker
from the PCB, through
the fan speed adjustment
panel to adjust speed.
High
Condition of standard air volume
Low
(air volume 100Pa)
Outer static pressure Pa
Example of
duct
Lower limit
Upper limit
Standard air volume
(m
3
/min)
200
150
100
50
0
26 30 34 35 40 43
¢
¢
¢
¢
¢
¢
¢
¢
¢
¢
¢
¢
¢
¢
Figure 1
Figure 2
Middle size seal cushion (accessory)
(Use seal cushion to
bind the pipe joint)
Clamp
Heat insulation (accessory)
(for liquid pipe)
(for gas pipe)
Heat insulation (accessory)
Gas pipe
Liquid pipe
Paste the refrigerant oil here
Torque spanner
Spanner
Pipe joint
Cone nut
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