Panasonic CS-XC9CKT / CU-XC9CKT / CS-XC12CKT / CU-XC12CKT Service Manual ▷ View online
Air Circulation Mode Operation Time Diagram
Standard for Determining Operation Mode
8.4. Air Circulation Mode Operation
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• Fan Operation only. Indoor fan speed selection by remote control and setting refer to Indoor Fan speed control.
8.5. Automatic Mode Operation
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• Indoor fan operates at SLo fan speed for 20 seconds.
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• After judging indoor air temperature, the operation mode is determined and operation continued at the mode determined.
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• After the operation mode has been determined, the mode does not change. However, Soft Dry mode operation includes
Cooling mode operation.
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• Room temperature adjustment.
The following are added to the setting temperature specified as above.
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• The mode judging temperature and standard setting temperature can be increased by 2°C, by open the circuit of JX1 at indoor
electronic controller.
8.6. Random Auto Restart Control
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• If there is a power failure during air conditioner operation, operation will be automatically restarted after 3 to 4 minutes when the
power is resumed.
It will start with previous operation mode and airflow direction.
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• Restart time is decided randomly using 4 parameter:-
Intake air temperature, setting temperature, fan speed and Air Swing Blade position.
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• Auto Restart Control is not available when Timer is set.
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• This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
Vertical Airflow Direction Auto-Control
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• When set a Airflow Direction Auto-Control with remote
control, the louver swings up and down as shown in the
diagram.
diagram.
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• The louver does not swing when the Indoor Fan Motor
stops during operation at the upper limit.
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• When stopped with remote control, the discharge vent is
reset, and stopped at the closing position.
Vertical Airflow Direction manual Control
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• When the manual Airflow Direction Selection Button is
pressed, the automatic airflow is released and the airflow
direction louver move up and down in the range shown in
the diagram.
direction louver move up and down in the range shown in
the diagram.
The louver can be adjusted by pressing the button to the
desired louver position.
desired louver position.
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• When the remote control is used to stop the operation, the
discharge vent is reset, and stopped at the closing position.
8.7. Vertical Airflow Direction Control
1. There is no swinging while indoor fan motor is stopped during Cooling, Ion, Oxygen and Soft Dry operation.
8.8. Delay ON Timer Control
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• When the Delayed ON Timer is set by using the remote control, the unit will start operate slightly before the set time, so that
the room will reach nearly to the set temperature by the desired time.
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• For Cooling and Soft Dry mode, the operation will start 15 minutes before the set time.
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• For Automatic mode, the indoor fan will operate at SLo speed for 20 seconds, 15 minutes before the set time to detect the
intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.
8.9. Remote Control Signal Receiving Sound
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• Long beep sound will be heard when:-
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− Stopping the Air Conditioner using ON/OFF switch.
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− Stopping the Quiet Mode.
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− Stopping the Oxygen Mode.
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− Stopping the Ion Mode.
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• Short beep sound will be heard for others.
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• To switch off the beep sound:-
Press the “Automatic Operation Button” continuously for 10s or < 15s (“beep” “beep” will be heard at the 10th second).
Repeat the above if you want to switch ON the beep sound.
However, if the “Automatic Operation Button” has been pressed the Automatic operation will be activated.
If you do not require this operation, you may change it by using the remote control.
If you do not require this operation, you may change it by using the remote control.
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
8.10. Ionizer Operation
Purpose
To provide fresh air effect to users by discharging minus Ion to air.
Control Condition
a. Ionizer Only Operation.
1. When air conditioner unit is at “OFF” condition (standby) and ION operation button at remote control is pressed.
Fan & ionizer on, ION LED illuminates, but power LED maintain off. (1
→ 2)
However, fan speed can be adjusted later by customer during this operation.
Airflow direction (Horizontal Vane) control:
Follow vane direction control at cooling mode.
Horizontal vane can be changed by customer during ion only operation.
2. Ion only operation can be off by pressed ION button again. (2
→ 1)
3. It can be changed to previous operated mode (Auto, Cool, Dry, Fan) + ion operation by OFF/ON switch. (2
→ 4)
4. During ion only operation, if power failure occur, after power resume, ionizer & air conditioner resumes immediately.
5. After error = 24 times, (about 11h 30 min.), ion & fan off with Ion LED blinks continuously.
(Detail refer to Ionizer Error detection control.)
b. Operation Mode + Ionizer Operation.
1. Ionising Operation Start Condition
When air conditioner unit is in “ON” condition (Cool, Dry, Fan, Auto mode) and ION operation button at remote control is
pressed. Ionizer on & ION LED illuminates. (3
pressed. Ionizer on & ION LED illuminates. (3
→ 4)
Power LED also illuminates.
2. Ionising Operation Stop Condition
When one of the following condition is satisfied, ION operation stops.
a. Stopped by ON/OFF switch.
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
b. Timer OFF activates.
c.
ION operation button is pressed again.
d. ION feedback signal shows error.
3. Ionizer operation status is not memorised by Micon. After OFF, when operation is “ON” again, air conditioner operates
without ionizer operation.
However, during Cool mode etc + ionizer operation, if there is a power failure & then power resume, air conditioner shall on
at that mode + ionizer operation.
at that mode + ionizer operation.
c. Timer during ionizer operation
Refer to case study in next page for detail.
8.10.1. Ionizer Error Detection Control
A. Purpose
To inform user that error occurs at ionizer system so that repairing job can be carried out.
B. Two type of error detection control:
(a) When Ionizer is ON (example case: Ionizer shorted, ionizer over current protection)
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• During ionizer ON operation, when feed back voltage = Lo (micon input) is detected, Ion is OFF. If feedback = Lo for 11
hrs 30 min, ION LED blinks continuously.
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• To cancel ion LED blinking, press ion button at remocon (or Auto operation switch at air conditioner unit). If ion button
is pressed again, ion LED blinks again.
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• The error can be reset by:
i) Operation ON/OFF button press to operation OFF.
ii) Auto Operation switch press to operation OFF.
iii) Operation OFF due to Timer OFF reach.
iv) Timer set ON & operation from ON to OFF (only applicable to 12 hrs timer models).
(b) When Ionizer is OFF (example case: ionizer connecting wire loose)
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• During air conditioner is at standby or ON operation and ionizer at OFF condition, if ionizer feed back voltage = Hi (micon
input) is detected, Ionizer breakdown detection control is activated and ion LED immediately blinks.
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• To cancel Ion LED blinking, press ion button at remote control (or Auto operation switch at air conditioner unit). If ion
button is pressed again, ion LED blinks again.
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• During ionizer at breakdown condition, if ionizer feedback voltage = Lo (become OK), ion LED will stop blinking.
8.10.2. Ionizer Operation case study
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
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