Panasonic CS-E18CKE / CU-E18CKE / CS-E21CKE / CU-E21CKE Service Manual ▷ View online
6
Block
Diagram
13
7 Wiring Diagram
14
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 adjusts 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 adjusts 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 control 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)
Cooling/Soft Dry
→ Heating
-2.0
Heating
→ Cooling/Soft Dry
+2.0
15
Table (b): Outdoor Air Temperature Shifting
Mode:
Outdoor Temperature, X (°C):
Temperature Shift (°C)
Manual Operation
Auto Operation
Cooling/Soft Dry
38
X
1.50
2.00
30
X
38
1.25
1.25
23
X
30
1.25
1.25
X
23
1.75
1.75
Heating
21
X
-2.25
-1.50
17
X
21
-1.75
-1.00
13
X
17
-0.75
0.00
9
X
13
0.25
0.25
5
X
9
1.25
1.00
1
X
5
0.75
1.00
-3
X
1
1.50
1.00
X
-3
1.50
1.00
Table (c): Powerful Mode Shifting
Mode:
Period, X (min):
Temperature Shift (°C)
Cooling
X
20
-2.0
X
20
0.0
Soft Dry
X
20
-1.0
X
20
0.0
Heating
X
20
+3.5
X
20
+3.25
Table (d): Quiet (Lo) Mode Shifting
Mode:
Period, X (min):
Temperature Shift (°C)
Cooling, Soft Dry
20 min
X
50 min
-3.0
50 min
X
110 min
-4.0
110 min
X
440 min
-5.0
Table (e): Fan Speed Shifting
Mode:
Fan Speed:
Temperature Shift (°C)
Cooling
Lo
-0.25
Me-, Me, Me+, Auto
0.00
Hi
+0.25
Soft Dry
All
+0.25
Heating
Lo
+1.50
Me-, Me, Me+, Auto
+0.75
Hi
+0.75
Table (f): Start-Up Shifting
Mode within 60 Minutes from Start-up:
Temperature Shift (°C)
Cooling/Soft Dry
-1.0
Heating
+2.0
16
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