4
97
3. Electrical leakage check (performing during test running)
Turn off the unit immediately if leakage happens. Check and find out the solution ways till the unit ope-
rate properly.
Gas leak check
1. Soap water method:
Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit con-
n
ections 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.
TEST RUNNING
Perform test running after completing electrical safety check and gas leak 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.
Fig. 25
AUTO/
COOL
Manual
control
button
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