3
Operation manual
Special remarks
Troubleshooting
When the power supply is recovered after break, all preset are still effective and the air-conditioner can run
according to the original setting.
If Trouble Still Remains ...
If the trouble still remains even after checking the following, contact your contractor and inform them of the
following items.
(1)Unit Model Name
(2)Content of Trouble
2.
No Operation
1.
Check whether the SET TEMP is set at the correct temperature.
CAUTION
3.
Not Cooling Well
Check for obstruction of air flow of outside or inside units.
Check if too much heat source exists in the room.
Check if the air filter is clogged with dust.
Check to see if the doors or windows are opened or not.
Check if the temperature condition is not within the operation range.
4. This is Not Abnormal
Smells from indoor unit
Smell adheres on indoor unit after a long period of time. Clean the air filter and panels or allow a good
ventilation.
Sound from Deforming Parts
During system starting or stopping, an abrading sound might be heard. However, this is due to thermal
deformation of plastic parts. It is not abnormal.
Steam from Outdoor Heat Exchanger
During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam.
Dew on Air Panel
When the cooling operation continues for a long period of time under high humidity conditions, dew may
form on the air panel.
Refrigerant Flow Sound
While the system is being started or stopped, sound from the refrigerant flow may be heard.
●
●
●
●
●
●
In several minutes after the heating mode is started, the fan of the indoor unit will not run until the heat exchanger
of the indoor unit reaches a high enough temperature. That is because cold air prevention system is operating.
●
When the outdoor temperature is too low, frost or ice may form in the outdoor heat exchanger, reducing heating
performance. When this happens, a defrosting system of the air conditioner will operate. At the same time the
fan in the indoor unit stops(or runs at a very low speed in some cases),a few minutes later, the defrosting is
over, and the heating operation restarts.
●
●
3 minutes protect after compressor stop
For protect compressor, there are at lest 3 minutes stopping after compressor stop.
5 minutes protect
Compressor must run 5 minutes at least once running. In the 5 minutes, compressor will not stop even the
room temperature reach the setting point unless you use remoter to turn off the unit(all indoor unit be turned
off by user).
Cooling operation
Heating operation
nti-freezing function during cooling
When the temperature of the air from the indoor outlet is too low, the unit will run for some time under the fan
mode, to avoid frost or ice forming in the indoor heat exchanger.
Cold air prevention
Defrosting
Blow out the survival heating air
When stop the air conditioner in normal operation, the fan motor would run in low speed for a while to blown
out the survival heating air.
Self Recovery of Power Break
When the power supply is recovered after break, all preset are still effective and the air-conditioner can run
according to the original setting.
The fan of the indoor unit will never stop running. It remains running even if the compressor stops working.
Since the air conditioner carries out the heating operation by drawing on the heat of the outside air (through
heating pump), the heating capacity may decrease if the temperature outside the room is too low. If the
heating effect is not so satisfying, use some other heating device together.
A
