Panasonic CS-E18CKE / CU-E18CKE / CS-E21CKE / CU-E21CKE Service Manual ▷ View online
8.1.14. Auto Restart Control
1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four
minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power
supply resumes.
supply resumes.
2. This type of control is not applicable during ON/OFF Timer setting.
8.1.15. Indication Panel
LED
POWER MONITOR
POWER
QUIET
TIMER
POWERFUL
ION
Color
Green
Green
Orange
Orange
Orange
Green
Light ON
Compressor ON
Operation ON
Quiet Mode ON
Timer Setting ON
Powerful Mode ON
Ion Mode ON
Light OFF
Compressor OFF
Operation OFF
Quiet Mode OFF
Timer Setting OFF Powerful Mode OFF
Ion Mode OFF
Note:
• If POWER LED is blinking, the possible operations of the unit are Hot Start, during Deice operation, operation mode
judgment, or delay ON timer sampling.
• If Timer LED is blinking, there is an abnormality operation occurs.
• If Ionizer, LED is blinking, there is an abnormality of Ionizer occurs.
• If Ionizer, LED is blinking, there is an abnormality of Ionizer occurs.
Power Monitor LED Control Frequency
Lighting of 3 LED base on instructed running frequency from indoor unit to compressor at cool, dry & heating operation.
Position of LED
Cool, Dry
Instructed Hz No
0
Hz
35
35
Hz
59
Hz
59
Heat
Instructed Hz No
0
Hz
44
40
Hz
63
Hz
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8.1.16. Auto Operation Switch
1. When the switch is pressed between 0 to 5 seconds, Auto Mode operation starts to function.
2. When the switch is pressed between 5 to 8 seconds, the unit is forced to operate in Cooling Mode.
3. When the switch is pressed between 8 to 11 seconds, the unit is forced to operate in Heating Mode.
4. When the switch is pressed between 11 to 16 seconds and together with the signal from remote control, the unit can be
changed to different controlling setting (4 type of transmission codes).
5. When the switch is pressed between 16 to 21 seconds, either “H14” error detection selection mode or the remote control signal
receiving sound can be cancelled or turned on.
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8.1.18. Ionizer Operation
8.1.17. Indoor Power Relay Control
Power relay will turn on during operation or in progress of stopping operation. Although operation stops, the power relay continues
on for three minutes.
on for three minutes.
However, during instantaneous power failure (< 0.5s), power relay will turn off. Then, it will turn on 2 minutes after power recover
and the unit will operate as previous operation condition.
and the unit will operate as previous operation condition.
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.
b. Operation Mode + Ionizer Operation.
1. Ionising Operation Start Condition
When air conditioner unit is in “ON” condition (Heat, Cool, Dry, Fan, Auto mode) and ION operation button at remote control
is pressed. Ionizer on & ION LED illuminates. (3
is 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.
b. Timer OFF activates.
c.
ION operation button is pressed again.
d. ION feedback signal shows error.
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3. Ionizer operation status is not memorised by micon. After OFF, when operation is “ON” again, air conditioner operates
without ionizer operation.
c. Timer during ionizer operation
Refer to case study in next page for detail.
8.1.18.1. Ionizer Problem Detection Control
i. Purpose
To inform user of ionizer problems and detection.
ii. Two types of problem detection control:
Control
Detection Method
Protection
Recovery
ERROR
PROTECTION
PROTECTION
(i) Actual ion: ON
(i) Actual ion ON for 10s & OFF for
30 min. continuously for 24 times
(approx. 11 hr. 30 min.)
(approx. 11 hr. 30 min.)
(i) Actual ion is permanently OFF & ion
LED is blinking.
(i) Press ON/OFF button
to OFF
(ii) ion feedback signal:
0V
(ii) Within 24 counts, if anytime
CONDITION becomes false then
count is cleared.
count is cleared.
(ii) Press remote control ion button for
a) ON: Ion LED blink & buzzer = beep
b) OFF: Ion LED OFF & buzzer = beep
b) OFF: Ion LED OFF & buzzer = beep
(ii)
(iii)
Reset power
Off by force operation
BREAKDOWN
PROTECTION
PROTECTION
(i)
(ii)
Actual ion: OFF
ion feedback signal:
5V
5V
(i) Actual ion OFF
2s
(i)
Case 1: During Air-Con. ON.
Air-Cond OFF with abnormal no. H26 is
activated with timer LED is blinking
permanently.
Air-Cond OFF with abnormal no. H26 is
activated with timer LED is blinking
permanently.
(i) When anytime
CONDITION becomes
false.
false.
(i)
Case 2: During Air-Con. OFF.
Abnormal no. H26 is activated with
timer LED is blinking permanently for
both cases 1 & 2.
Abnormal no. H26 is activated with
timer LED is blinking permanently for
both cases 1 & 2.
(ii) Once recovered, ion &
Timer LED stops
blinking permanently.
blinking permanently.
(ii) Press remote control ion button for
a) ON: Ion LED blink
b) OFF: Ion LED OFF
b) OFF: Ion LED OFF
(iii) Main power reset.
(iii) Press any remote control button to
a) ON: Buzzer = beep beep beep beep
b) OFF: Buzzer = beep beep beep beep
b) OFF: Buzzer = beep beep beep beep
8.1.18.2. Ionizer Operation case study
Case 1
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8.2. Protection Control Features
8.2.1. Protection Control For All Operations
8.2.1.1. Time Delay Safety Control
1. The compressor will not start for three minutes after stop of operation.
2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition.
8.2.1.2. 30 Seconds Forced Operation
1. Once the compressor starts operation, it will not stop its operation for 30 seconds.
2. However, it can be stopped using remote control or Auto Switch at indoor unit.
8.2.1.3. Total Running Current Control
1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be
decreased.
2. If the running current does not exceed X value for five seconds, the frequency instructed will be increased.
3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for three minutes.
E21CK
E18CK
Operation Mode
X (A)
Y (A)
X (A)
Y (A)
Cooling/Soft Dry (A)
11.0
15.0
8.8
15.0
Cooling/Soft Dry (B)
9.6
15.0
7.7
15.0
Heating
11.5
17.0
10.8
17.0
4. The first 30 minutes of cooling operation, (A) will be applied.
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