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nections by a soft brush to check for leakage of the connecting points of the piping. If bubbles come
out, the pipes have leakage.
2. Dedicated special leak detector
Use the leak detector to check for leakage.
Indoor unit
check point
Cover
Outdoor unit
check point
Fig. 25
TEST RUNNING
Perform test running after completing gas leak and electrical safety check.
The test running time should last more than 30 minutes.
1.
Open the panel and lift the panel up to an angle which remains fixed. Do not lift the panel any fur-
ther when it stops with a click sound.
2.
Press the manual control button twice until the operating indicator lights up, the unit will operate
on Forced Cool mode.
3.
Check if all the functions works well during test running. Especially check whether the drainage of
indoor unit is smooth or not.
4.
Press the manual switch button again after finishing the test running . The operating indicator turns
dark and the unit stops operating and is now ready for use.
Manual
control
button
D
C
B
A
AUTO/
COOL
D
C
B
A
4
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