Panasonic CS-E15CKP / CU-E15CKP5 Service Manual ▷ View online
8.1. BASIC FUNCTION
8 Operation Details
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,
automatically adjust output power for maximum comfort always. In order to achieve the suitable operating mode, the
microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature
shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that
judging the condition according to internal setting temperature and intake air temperature.
automatically adjust output power for maximum comfort always. In order to achieve the suitable operating mode, the
microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature
shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that
judging the condition according to internal setting temperature and intake air temperature.
8.1.1. Internal Setting Temperature
Once the operation starts, remote controller setting temperature will be taken as base value for temperature shifting processes.
These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value
will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.
These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value
will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.
Table (a): Auto Operation Mode Setting
Mode Shift:
Temperature Shift (°C)
E9CKP
E12CKP
E15CKP
Cooling/Soft Dry
→ Heating
-2.0
-2.0
-2.0
Heating
→ Cooling/Soft Dry
+2.0
+2.0
+2.0
Table (b): Outdoor Air Temperature Shifting
Mode:
Outdoor Temperature, X (°C):
Temperature Shift (°C)
E9CKP
E12CKP
E15CKP
Cooling/Soft Dry
X
30
0.0
0.0
0.0
X
30
+0.5
+0.5
+0.5
Heating
X
9
0.0
0.0
0.0
5
X
9
+0.5
+1.0
+1.0
1
X
5
+1.0
+1.5
+1.5
X
1
+1.5
+2.0
+2.0
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CS-E15CKP CU-E15CKP5
Table (c): Powerful Mode Shifting
Mode:
Period, X (min):
Temperature Shift (°C)
E9CKP
E12CKP
E15CKP
Cooling
X
20
-2.0
-2.0
-2.0
X
20
0.0
0.0
0.0
Soft Dry
X
20
-1.0
-1.0
-1.0
X
20
0.0
0.0
0.0
Heating
X
20
+3.5
+3.5
+3.5
X
20
+3.5
+3.5
+3.5
Table (d): Fan Speed Shifting
Mode:
Fan Speed:
Temperature Shift (°C)
E9CKP
E12CKP
E15CKP
Cooling
All
+1.5
+1.5
+1.5
Soft Dry
All
+1.0
+1.0
+1.0
Heating
Lo
+1.0
+1.0
+1.0
Me-, Me, Me+, Hi, Auto
+0.5
+0.5
+0.5
Table (e): Start-Up Shifting
Mode within 60 Minutes from Start-up:
Temperature Shift (°C)
E9CKP
E12CKP
E15CKP
Cooling/Soft Dry
-1.0
-1.0
-1.0
Heating
+2.0
+2.0
+2.0
Table (f): Soft Dry Mode Shifting
Mode:
Temperature Shift (°C)
E9CKP
E12CKP
E15CKP
Soft Dry
+1.0
+1.0
+1.0
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CS-E15CKP CU-E15CKP5
8.1.2. Frequency Instruction for Compressor Operation
Operation of compressor is based on instructed frequency, continuously from indoor unit´s microcomputer after performing
temperature sampling and judgment.
temperature sampling and judgment.
There are total 30 different frequency values, which listed as Table on Frequency Number, to be instructed based on the
temperature judgment
temperature judgment
Table on Frequency Number
No.
Frequency (Hz)
Remarks
E9CKP
E12CKP/E15CKP
1
12.0
12.0
Freq. MIN
2
15.0
15.0
3
18.0
18.0
4
21.0
21.0
5
23.0
23.0
6
25.0
25.0
7
26.0
28.0
8
30.0
32.0
9
33.0
36.0
10
35.0
40.0
11
36.0
44.0
12
38.0
48.0
13
39.0
52.0
Fc
14
40.0
57.0
15
47.0
62.0
Fc max. (E9CKP)
16
49.0
67.0
Fc max. (E12CKP/E15CKP)
17
56.0
68.5
Fh
18
58.0
72.0
19
63.0
76.0
20
66.0
80.0
21
70.0
85.0
22
73.0
88.0
23
77.0
91.0
24
80.0
94.0
25
83.0
98.0
26
86.0
102.0
27
87.0
104.0
28
88.0
106.0
29
89.0
108.0
30
90.0
110.0
Fh max.
For normal start of operation, including Thermo-OFF, Deice-Resuming, and remote controller ON-OFF starts, the compressor
starts to operate at frequency no. 8, values of 30Hz and 32Hz for E9CKP and E12CKP/E15CKP respectively, for 60 seconds.
starts to operate at frequency no. 8, values of 30Hz and 32Hz for E9CKP and E12CKP/E15CKP respectively, for 60 seconds.
The frequency to be judged and instructed, however, starts to judge once the air conditioner operated and the judgment will
continue every 30 seconds until it is stopped by all kinds of compressor off conditions. This judgment is based on the internal
temperature sampling that involving internal setting temperature and intake air temperature.
continue every 30 seconds until it is stopped by all kinds of compressor off conditions. This judgment is based on the internal
temperature sampling that involving internal setting temperature and intake air temperature.
From the internal sampling, the temperature different (intake air temperature - internal setting temperature) will be used to judge
the Zone on which the frequency to be instructed for the initial operation of compressor (refer to Table on Initial Frequency Zone).
the Zone on which the frequency to be instructed for the initial operation of compressor (refer to Table on Initial Frequency Zone).
Table on Initial Frequency Zone
Temperature, X (°C)
Zone
Freq. No. - E9CKP
Freq. No. - E12CKP/E15CKP
(Intake Air - Internal Setting)
Cooling
Soft Dry
Heating
Cooling
Soft Dry
Heating
X
-2.5
0
1
4
30
1
4
30
-2.5
X
-1.5
1
1
4
30
1
4
30
-1.5
X
-1.0
2
1
4
10
1
4
10
-1.0
X
-0.5
3
1
4
7
1
4
7
-0.5
X
+1.0
4
4
4
4
4
4
4
+0.5
X
+1.0
5
6
6
1
6
6
1
+1.0
X
+1.5
6
9
7
1
9
8
1
+1.5
X
+2.5
7
15
7
1
16
8
1
X
+2.5
8
15
7
1
16
8
1
After the initial operation, the instructed frequency will change or shift from initial frequency according to the judgment on
temperature different from sampling (refer to the Table on Shifting Frequency Zone).
temperature different from sampling (refer to the Table on Shifting Frequency Zone).
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CS-E15CKP CU-E15CKP5
Table on Shifting Frequency Zone
Temperature, X (°C)
Zone
Frequency No. Shifting:
(Intake Air - Internal Setting)
Cooling Mode / Soft Dry Mode
Heating Mode
X
-2.5
0
Shift to Freq. MIN
Shift to Freq. MAX
-2.5
X
-1.5
1
Shift to Freq. MIN
Shift to Freq. MAX
-1.5
X
-1.0
2
-2 Freq. No.
+2 Freq. No.
-1.0
X
-0.5
3
-1 Freq. No.
+1 Freq. No.
-0.5
X
+1.0
4
Same Freq. No.
Same Freq. No.
+0.5
X
+1.0
5
+1 Freq. No.
-1 Freq. No.
+1.0
X
+1.5
6
+2 Freq. No.
-2 Freq. No.
+1.5
X
+2.5
7
Shift to Freq. MAX
Shift to Freq. MIN
X
+2.5
8
Shift to Freq. MAX
Shift to Freq. MIN
Besides, the range of operation frequency will change according to the setting environment as listed below:
Condition:
Freq. no. for E9CKP
Freq. no. for E12CKP/E15CKP
Remarks
MIN
MAX
MIN
MAX
Cooling Mode
1
15
1
16
(a)
- if remote controller set
28°C & fan speed =
Hi
7
15
7
16
(a), (c)
- if remote controller set
28°C & fan speed =
Me-, Me, Me+, Auto
5
15
6
16
(a), (c)
- if remote controller set
28°C & fan speed =
Lo
4
15
5
16
(a), (c)
- if Powerful Mode ON
7
15
7
16
(a), (c)
Soft Dry Mode
4
7
4
8
Heating Mode
1
30
1
30
(b)
- if remote controller set
18°C & fan speed =
Hi
10
30
10
30
(b), (d)
- if remote control set
18°C & fan speed =
Me-, Me, Me+, Auto
9
30
9
30
(b), (d)
- if remote controller set
18°C & fan speed =
Lo
8
30
8
30
(b), (d)
- if Powerful Mode ON
10
30
10
30
(b), (d)
Remark:
(a)
If frequency decreases from MAX, the following frequency performed will be depending to outdoor temperature, as given in below table
(for 30 seconds only) and then continues as normal rule.
(for 30 seconds only) and then continues as normal rule.
Outdoor Temperature, X (°C)
Frequency No.
X
30
13
X
30
7
(b)
(If frequency increases from Freq. No. 17, the following frequency performed is as below (for 30 seconds only) and then continue as
normal rule.
normal rule.
Outdoor Temperature, X (°C)
Frequency No.
X
10
10
X
X
10
13
X
4
17
(c)
When temperature different (intake - setting) < -1.0 °C or Thermo-Off activated and only valid for 120 seconds; not applicable during Soft
Dry Mode, and Anti-freezing control.
Dry Mode, and Anti-freezing control.
(d)
When temperature different (intake - setting) > +1.5 °C or Thermo-Off activated and only valid for 130 seconds.
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CS-E15CKP CU-E15CKP5
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