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Manual louver setting
Auto louver setting
• Temperature range for louver control during heating operation is as follows; decide by indoor heat exchanger temperature.
9.6.4.
Cooling Outdoor Fan Control
• During cooling operation, outdoor fan speed changes according to outdoor pipe temperature.
• The fan speed is controlled by the timing of turning the outdoor fan ON and OFF within an interval.
• When outdoor pipe temperature increase, interval timing increased.
• Outdoor fan ON time is a variable with the range of 200ms to 2000ms.
• After 2 minutes, the outdoor pipe temperature is detected and the outdoor unit fan speed is changed automatically.
• The fan speed is controlled by the timing of turning the outdoor fan ON and OFF within an interval.
• When outdoor pipe temperature increase, interval timing increased.
• Outdoor fan ON time is a variable with the range of 200ms to 2000ms.
• After 2 minutes, the outdoor pipe temperature is detected and the outdoor unit fan speed is changed automatically.
Operation Mode
Display manual
Set 1
Set 2
Set 3
Set 4
Normal
20
°
35
°
50
°
70
°
Heating
Deice
10
°
Hot start
10
°
Thermostat Off
20
°
Fan
20
°
35
°
50
°
70
°
Cooling
Normal
20
°
35
°
50
°
70
°
(Fan)
Dew Control
50
°
Thermostat Off
20
°
35
°
50
°
70
°
Normal
30
°
Soft Dry
Dew Control
50
°
Thermostat Off
20
°
35
°
50
°
70
°
Operation mode judge
20
°
35
°
50
°
70
°
Stop Mode
0
°
Operation
Display
auto
set
AUTO 1
AUTO 2
AUTO 3
A
70
°
70
°
70
°
Normal
Sensor
B
20
° - 70°
20
° - 50°
40
° - 70°
Heating
C
20
°
20
°
20
°
Deice
10
°
Hot Start
10
°
Thermostat Off
20
°
Fan
20
° - 70°
20
° - 50°
40
° - 70°
Cooling
Normal
20
° - 70°
20
° - 50°
40
° - 70°
(Fan)
Dew Control
50
°
Thermostat Off
20
° - 70°
20
° - 50°
40
° - 70°
Normal
30
°
Soft Dry
Dew Control
50
°
Thermostat Off
20
° - 70°
20
° - 50°
40
° - 70°
Operation mode judge
20
°
20
°
20
°
Stop Mode
0
°
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9.6.5.
Heating Outdoor Fan Control
• During heating operation, the fan speed is controlled by indoor heat exchanger temperature.
• In case of twin operation, the higher indoor heat exchanger temperature is used to control the fan speed. During heating
• In case of twin operation, the higher indoor heat exchanger temperature is used to control the fan speed. During heating
operation, the fan speed is controlled by indoor heat exchanger temperature.
9.7.
Operation Control
9.7.1.
Odour Cut Control
• Odour cut operation removes the odour generated at indoor heat exchanger by using drain water come out from indoor heat
exchanger.
• Press “Odour” button at remote control to enable odour cut operation.
• Odour cut operation starts when compressor or thermostat is on.
• Odour cut operation starts when compressor or thermostat is on.
9.7.2.
Drain pump Control
• During Cooling, Soft Dry or Deice operation, drain pump operates by following the table below.
• When compressor start, drain pump operating starts after 10 seconds of indoor fan starts.
• When compressor start, drain pump operating starts after 10 seconds of indoor fan starts.
Thermostat & Compres-
sor ON/OFF
Thermostat &
Compressor ON
Thermostat &
Compressor OFF
Thermostat &
Compressor ON
Time
40 sec.
50 sec.
-
20 sec.
120 sec.
20 sec.
40 sec.
50 sec.
-
Cool
Off
Lo
Normal
Operation
Lo
Off
Lo
Off
Lo
Normal
Operation
Soft Dry
Off
Lo
Lo
Lo
Off
Lo
Off
Lo
Lo
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• When operation stop or thermostat is off, drain pump continue operates for 6 minutes to prevent the drain water from coming
back.
9.7.3.
Energy Saving
• During Operation, press "Economy" button at remote control to enable Energy Saving Operation.
• The air conditioner judges the stable condition, where the different between indoor suction temperature and setting temperature
• The air conditioner judges the stable condition, where the different between indoor suction temperature and setting temperature
is 1°C for 30 minutes and moderately shifts the set temperature in 0.5°C steps (Maximum 2°C) to control energy saving
operation.
operation.
• If temperature different is out of range, energy save operation will not start.
• Energy Save Operation is canceled by pressing the "Economy" button again.
• Energy Save Operation is canceled by pressing the "Economy" button again.
9.7.4.
Dew Form Prevention Control
• During Cooling or Soft Dry operation, if outdoor temperature is less than 30ºC, and indoor fan speed is low or auto setting, indoor
heat exchanger temperature become lower, dew form prevention control start to prevention dew form at indoor discharge grille.
• When indoor pipe temperature decrease, the cooling capacity will be reduced and the louver angle will be fixed at certain angle.
9.7.5.
Freeze Prevention Control
• After compressor starts operation for 4 minutes, the outdoor unit will stop its operation if indoor pipe temperature falls below 0ºC
for 6 minutes.
• After 3 minutes stops, compressor restarts operation if indoor pipe temperature is 6ºC or more.
• This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid from
• This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid from
returning to the compressor.
Energy save control time chart
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9.7.6.
Deice Control
• During heating operation at outdoor low outdoor temperature, deice operation start timely to melt the ice formed on outdoor heat
exchanger.
• During deice operation, in spite of any changes of remote control, indoor fan stop and louver angle fixed at upper side. (for louver
control: cassette and ceiling model only)
• During deice operation, [DEFROST] is displayed at wired remote control (when using wireless control, POWER is blinking at
receiver of indoor unit), hot start operate after deice operation finish.
• Deice operation start when accumulative heating operation time or after previous defrost end reaches 45 minutes, the outdoor
fan maintains Hi status and the outdoor heat exchanger maintains -2°C for 5 minutes.
9.7.7.
Time Delay Safe Control
• The compressor will not start for three minutes after stop of operation.
9.7.8.
Outdoor Fan Remaining Heat Removal Control
• When compressor stop, outdoor fan operates at High speed for 1 minute to remove the remaining heat.
9.7.9.
Crank Case Heater Control
• Crank case heater ON when the compressor is shutdown and discharge temperature is 20°C to prevents the refrigerant solving
into compressor oil inside the compressor shell at cold condition.
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