• Press for < 5s to operate Automatic
operation mode.
(Used when the remote control cannot be used.)
• Press continuously for 5s or < 10s to
operate Test Run/Pump down. “Beep”
sound will be heard at the 5th second.
(Used when test running or servicing.)
• Press continuously for 10s and above to
omit or resume the remote control signal
receiving sound. “Beep, beep” sound will
be heard at the 10th second.
Operation Indication Lamps (LED)
•
POWER
(Green) ......... Lights up in operation,
blinks in Automatic
Operation Mode judging,
deice operation and
hotstart.
•
SLEEP
(Orange) .........Lights up in Sleep Mode
Operation.
•
TIMER
(Orange) ....... Lights up in Timer
Setting.
•
AIR SWING
(Orange) ... Lights up in Auto Air
Swing Mode Operation.
Operation Mode
• Heating, Cooling, Soft Dry and Automatic
Mode.
Random Auto Restart Control
• Operation is restarted randomly after
power failure at previous setting mode.
• High, Medium and Low.
• Automatic Fan Speed Mode
–Heating : Fan speed varies from Me →
SSLo in accordance with
indoor heat exchanger.
–Cooling : Fan rotates at Hi, Me and
SLo speed.
–Soft Dry : Fan rotates at Lo- speed.
Airflow Direction Control
• Automatic air swing and manual adjusted
by remote control for vertical airflow.
• Manually adjusted by hand for horizontal
airflow.
Time Delay Safety Control
•
Restarting is inhibited for appro. 3 minutes.
7 Minutes Time Save Control
• Cooling Operation only.
30 Minutes Time Save Control
• Heating Operation only.
Hot-Start Control
• At Heating Operation the indoor fan will
operate at SLo speed when indoor heat
exchanger temperature reaches 30°C.
Anti-Freezing Control
• Anti-Freezing control for indoor heat
exchanger. (Cooling and Soft Dry)
Sleep Mode Auto Control
• Indoor Fan operates refer to Indoor Fan
Speed.
• Operation stops after 8 hours.
Anti Cold Draft Control
• The indoor fan operates at SSLo when the
indoor heat exchanger temperature is low.
(During Heating mode thermal off)
Anti-Dew Formation Control
• Anti-Dew Formation Control for indoor unit
discharge area.
• To protect compressor from reverse
rotation when there is a instantaneous
power failure.
Overload Protector
• OLP to protect the compressor for A12CT
only.
Inner protector for A18CT & A24CT only.
60 Secs. Forced Operation Control
• Once the compressor is activated, it does
not stop within the first 60 secs.
However, it stops immediately with remote
control stop signal.
CU-A18CTP5
CU-A24CTP5
Deice Control
• To prevent frosting at outdoor heat exchanger. (Only for Heating Operation)
Overload Protection Control
• Outdoor fan stops when indoor heat
exchanger temperature rises to 51°C and
above, and restarts when the indoor heat
exchanger temperature drops to 49°C and
below (A12CT).
• Compressor stop when indoor heat
exchanger temperature reaches 65°C
(A12CT), 68°C (A18CT & A24CT).
(Heating Operation Only)
Outdoor Fan Operation Control
A18 / 24CT
• 4-pole induction motor (2 speed).
• For Cooling or Soft Dry operation
Hi-speed ............... When outdoor
temperature reaches to 31°C.
Lo-speed .............. When outdoor
temperature reaches to 29°C.
• For Heating operation
Hi-speed ............... When outdoor
temperature reaches to 13.5°C.
Lo-speed .............. When outdoor
temperature reaches to 15.5°C.
• For Over-heating Protection, the Fan is
switched ON or OFF depending on the
piping temperature and the outdoor
temperature.
A12CT
• 6-pole induction motor (1 speed).
Compressor Protection Control
• If the outdoor fan motor is not running after
compressor starts for 50 secs., compressor
will stop. (Cooling and Soft Dry Operation
only).
4-Way Valve Control
• When the unit is switched to “OFF” during
Heating Operation, 4-way valve stays at
Heating position for 5 minutes.
Tube materialCopperCopper
Fin materialAluminiumAluminium (Blue Coated)
Fin TypeLouver FinCorrugated Fin
Row / Stage(Plate fin configuration, forced draft)
2×122×24
FPI2016
Size (W × H × L)mm857 × 252 × 25.4720 × 504 × 36.38
Tube materialCopperCopper
Fin materialAluminiumAluminium (Blue Coated)
Fin TypeLouver FinCorrugated Fin
Row / Stage(Plate fin configuration, forced draft)
2 × 12
+
1 × 10
FPI2016
Size (W × H × L)mm857 × 252 × 25.4
Refrigerant Control Device—Capillary Tube
Refrigeration Oil(c.c)—SUNISO 4GDID or ATMOS
Tube materialCopperCopper
Fin materialAluminiumAluminium (Blue Coated)
Fin TypeLouver FinCorrugated Fin
Row / Stage(Plate fin configuration, forced draft)
2 × 12
+
1 × 10
FPI2016
Size (W × H × L)mm857 × 252 × 25.4
Refrigerant Control Device—Capillary Tube
Refrigeration Oil(c.c)—SUNISO 4GDID or ATMOS
Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
When the compressor is stopped by Remote Control, it restarts after 3 minutes when it is turned ON by Remote Control.
•
When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
•
7 minutes Time Save Control
The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressor
•
ON temperature and OFF temperature.
Anti-Freezing Control
If the temperature of the indoor heat exchanger falls
•
continuously below 2°C for 4 minutes or more, the
compressor turns off to protect the indoor heat exchanger
from freezing. The fan speed setting remains the same.
Compressor will restart again when the indoor heat
•
exchanger temperature rises to 10°C (Recovery).
3 minutes waiting of Time Delay Safety Control is valid for
Cooling Operation.
Compressor Reverse Rotation Protection Control
If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and
•
indoor heat exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid)
▲
T = Intake air temperature - Indoor heat exchanger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
Anti-Dew Formation Control
Purpose is to prevent dew formation on indoor unit air discharge area.
•
When the following conditions occur for 30 minutes continuously, anti-dew formation is controlled by indoor fan speed shift to
•
low (Changed to HLo):
Indoor intake air temperature is more than 24°C and less than 30°C.
−
Remote Control setting temperature is less than 25°C.
−
Compressor is on.
−
Cooling operation mode.
−
Indoor Fan motor operate at Low fan speed.
−
This control is cancelled immediately when above condition is changed.