Panasonic CS-E15CKP / CU-E15CKP5 Service Manual ▷ View online
8.1.7. Airflow Direction
1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).
2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature
and intake air temperature) and manual (angles of direction can be adjusted using remote controller).
Vertical Airflow
Operation Mode
Airflow Direction
Vane Angle (°)
1
2
3
4
5
Heating
Auto, with Heat Exchanger
A
17
Temperature
B
58
C
7
Manual
7
17
33
49
67
Cooling, Soft Dry and Fan, Ion
Auto
7 ~ 37
Manual
7
17
25
33
41
Mode Judgment in Auto
Auto
7
Manual
7
17
25
33
41
1. Automatic vertical airflow direction can be set using remote controller; the vane swings up and down within the angles as
stated above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as
Figure 1 below. When the air conditioner is stopped using remote controller, the vane will shift to close position.
Figure 1 below. When the air conditioner is stopped using remote controller, the vane will shift to close position.
2. Manual vertical airflow direction can be set using remote controller; the angles of the vane are as stated above and the
positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote controller, the vane will shift
to close position.
to close position.
Horizontal Airflow
1. Automatic horizontal airflow direction can be set using remote controller; the vane swings left and right within the angles as
stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as
Figure 1 below.
Figure 1 below.
Operation Mode
Vane Angle (°)
Heating, with heat exchanger temperature
A
55 ~ 125
B
90
Cooling, Soft Dry and Fan, Ion
55 ~ 125
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CS-E15CKP CU-E15CKP5
2. Manual horizontal airflow direction can be set using remote controller; the angles of the vane are as stated below and the
positions of the vane are as Figure 2 above.
Pattern
1
2
3
4
5
Airflow Direction
Patterns at Remote
Controller
Patterns at Remote
Controller
Vane Angle (°)
90
55
70
110
125
8.1.8.
Automatic Mode Operation
This mode can be set using remote controller and the operation is decided by remote controller setting temperature, indoor intake
air temperature and outdoor air temperature.
air temperature and outdoor air temperature.
During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 20 seconds to detect
the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.
the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.
Values of T1, T2, and T3 depend on remote controller setting temperature, as shown in below table. After the adjustment of T1,
T2 and T3 values, the operation mode for that particular environment and remote controller setting is judged and performed, based
on the above operation mode chart, every 30 minutes. Heating mode operation will be performed, however, if deice operation is
detected.
T2 and T3 values, the operation mode for that particular environment and remote controller setting is judged and performed, based
on the above operation mode chart, every 30 minutes. Heating mode operation will be performed, however, if deice operation is
detected.
Remote Controller Setting Temperature (°C)
T1
T2
T3
16 ~ 18
+10
+8
-5
19 ~ 22
+8
+7
-7
23 ~ 26
+7
+6
-7
27 ~ 30
+6
+5
-8
There is a temperature shifting on T1, T2, and T3 if the operation mode judged is changed from Cooling/Soft Dry to Heating or vice
verse.
verse.
Operation Mode change from
Temperature shifts (°C)
Cooling/Soft Dry
→ Heating
-2
Heating
→ Cooling/Soft Dry
+2
Example of operation mode chart adjustment:
From the above table, if remote controller setting temperature = 25,
T1 = 25 + 7 = 32; T2 = 25 + 6 = 31; T3 = 25 - 7 = 18
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CS-E15CKP CU-E15CKP5
The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on
indoor intake air temperature and outdoor air temperature at the time when the judgment is made.
indoor intake air temperature and outdoor air temperature at the time when the judgment is made.
8.2. Protection Control Features
8.2.1. Delay ON Timer Control
This control is applicable to all kinds of operation mode.
Delay ON timer can be set using remote controller, the unit with timer set will start operate earlier than the setting time. This is to
provide a comfortable environment when reaching the set ON time.
provide a comfortable environment when reaching the set ON time.
Seventy minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 20 seconds to determine
the indoor intake air temperature and outdoor air temperature in order to judge the operation mode.
the indoor intake air temperature and outdoor air temperature in order to judge the operation mode.
From the above judgment, the decided operation will start operate earlier than the set time as shown below.
8.2.2. OFF Timer Control
This control is applicable to all kinds of operation mode.
OFF timer can be set using remote controller, the unit with timer set will stop operate at set time.
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CS-E15CKP CU-E15CKP5
8.2.3. 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 3 minutes after power recover
and the unit will operate as previous operation condition.
and the unit will operate as previous operation condition.
8.2.4. Time Delay Safety Control
This control is applicable to all kinds of operation mode.
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.
8.2.5. 30 Seconds Forced Operation
This control is applicable to all kinds of operation mode.
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.
8.2.6. Total Running Current Control
This control is applicable to all kinds of operation mode.
1. When the total outdoor unit running current (AC) exceeds X value, the frequency instructed for compressor operation will be
decreased a step to smaller frequency number.
2. If the running current does not exceed X value for five seconds, the frequency instructed will be increased a step at one time
to bigger frequency number.
3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for three minutes.
Operation Mode
E9CKP
E12CKP/E15CKP
X (A)
Y (A)
X (A)
Y (A)
Cooling/Soft Dry (I)
4.5
17.0
6.5
17.0
Cooling/Soft Dry (II)
4.0
17.0
6.0
17.0
Heating
6.1
17.0
9.2
17.0
4. The first 30 minutes of cooling operation, (I) will be applied.
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CS-E15CKP CU-E15CKP5
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