Installation
Page 135
11. Test Operation
11.1 The test operation must be carried out
after the entire installation has been
completed.
11.2 Please confirm the following points
before the test operation.
• The indoor unit and outdoor unit are installed prop-
erly.
• Tubing and wiring are correctly completed.
• The refrigerant pipe system is leakage-checked.
• The drainage is unimpeded.
• The ground wiring is connected correctly.
• The length of the tubing and the added stow capac-
ity of the refrigerant have been recorded.
• The power voltage fits the rated voltage of the air
conditioner.
• There is no obstacle at the outlet and inlet of the
outdoor and indoor units.
• The gas-side and liquid-side stop values are both
opened.
• The air conditioner is pre-heated by turning on the
power.
11.3 Test operation
1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to
warm up.
3. Set the air conditioner to COOL mode, and check the
following points.
Indoor unit
• Whether the switch on the remote controller works
well.
• Whether the buttons on the remote controller
works well.
• Whether the air flow louver moves normally.
• Whether the room temperature is adjusted well.
• Whether the indicator lights normally.
• Whether the temporary buttons works well.
• Whether the drainage is normal.
• Whether there is vibration or abnormal noise during
operation.
Outdoor unit
• Whether there is vibration or abnormal noise during
operation.
• Whether the generated wind, noise, or condensed
of by the air conditioner have influenced your neigh-
borhood.
• Whether any of the refrigerant is leaked.
Drainage Test
a. Ensure the drainpipe flows smoothly. New buildings
should perform this test before finishing the ceiling.
b. Remove the test cover. Add 2000ml of water to the tank
through the attached tube.
c.Turn on the main power switch and run the air
conditioner in COOL mode.
d. Listen to the sound of the drain pump to see if it makes
any unusual noises.
e. Check to see that the water is discharged. It may
take up to one minute before the unit begins to drain
depending on the drainpipe.
f. Make sure that there are no leaks in any of the piping.
g. Stop the air conditioner. Turn off the main power switch
and reinstall the test cover.
If ambient temperature is below 17°C (63°F)
You can’t use the remote controller to turn on the COOL
function when the ambient temperature is below 17°C. In
this instance, you can use the MANUAL CONTROL button
to test the COOL function.
1. Lift the front panel of the indoor unit, and raise it until it
clicks in place.
2. The MANUAL CONTROL button is located on the right-
hand side of the display box. Press it two times to select
the COOL function.
3. Perform Test Run as normal.
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