Operation Manual
Special Remarks
•
3-minute protection after compressor stop
To protect compressor, it will be off for at least 3 minutes once it is stopped.
•
5-minute protection
Compressor must run for at least 5 minutes once it is operated. During the 5 minutes, compressor will not stop even if the room
temperature reaches the set temperature unless you use remote controller to turn off the unit (all indoor units can be turned off
by user).
• Cooling operation
The fan of the indoor unit will never stop running in cooling operation. It continues to operate even if the compressor stops
working.
•
Heating operation
Heating capacity depends on external factors like outdoor unit temperature. Heating capacity might decrease if outdoor ambient
temperature is too low.
• Anti-freezing function during cooling
When the air temperature from the indoor outlet is too low, the unit will run for some time in the ventilating mode, to avoid frost or
ice forming on the indoor heat exchanger.
• Cold air prevention
During 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 to prevent cold draft.
•
Defrosting
When the outdoor temperature is too low, frost or ice may generate on the outdoor heat exchanger, affecting heating
performance. When this happens, the 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
the fan speed resume.
• Blowing out the residual heating air
When stopping the air conditioner in normal operation, the fan motor will run with low speed for a while to blow out the residual
heating air.
• Auto restart from power break
When the power supply is recovered after power break, all presets are still effective and the air conditioner will run according to
the previous setting.
Troubleshooting
!
CAUTION
When drain water overflows from the indoor unit, stop the operation and contact your dealer.
When you smell or see white smoke coming out of the unit, turn OFF the main power supply and contact your dealer.
1
If Trouble still exists
If the trouble still exists even after checking the following, contact your dealer and inform them of the following items.
(1) Unit Model Name
(2) Content of Trouble
2 No Operation
Check whether the SET TEMP is set at the correct temperature.
3
Not Cooling or Heating Properly
• Check for obstruction of air flow of outdoor or indoor units.
•
Check if there are too many heating sources in the room.
• Check if the air filter is clogged with dust.
•
Check if the doors or windows are open.
•
Check if the temperature condition is within the operation range.
OPERATION MANUAL
HO2019290HA
8