Operation Manual
Special remarks
Troubleshooting
if overflow of drain water from the indoor unit occurs, stop the operation and contact your contractor.
if you smell or see white smoke coming from the unit, turn OFF the main power supply and contact
your installer.
1.If Trouble Still Remains ...
(1)Unit Model Name
(2)Content of Trouble
2.No Operation
Check whether the SET TEMP is set at the correct temperature.
CAUTION
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3 minutes protection after compressor stop
To protect compressor, it will be continue off for at lest 3 minutes once it has stopped.
5 minutes protection
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
Blowing out the residual heating air
Compressor must run 5 minutes at least once start running. In the 5 minutes, compressor will not stop even the room
temperature reaches the set point unless you use remote control switch to turn off the unit (all indoor unit can be
turned off by user).
The fan of the indoor unit will never stop running in cooling operation. It remains running even if the compressor
stops working.
Heating capacity depends on external factors as outdoor unit temperature. Heating capacity might decrease if
outdoor ambient temperature is too low.
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 certain temperature in order to prevent cold draft.
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), to prevent cold draft. After
defrosting is over, the heating operation and fan speed restart.
Auto re-start from Power Break
When stoping the air conditioner in normal operation, the fan motor would run with low speed for a while to blow
out the residual heating air.
When the power supply is recovered after power break, all preset are still effective and the air-conditioner will
run according to the previous setting.
If the trouble still remains even after checking the following, contact your installer and inform them of the
following items.
