Compressor operation frequency, Cooling operation 8.1.3.1. thermostat control – Panasonic CS-E21CKE User Manual
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CompHz = Freq. A × Freq. H + Freq. C
Example Calculation:
Model No.: E18CK
Operation Mode: Cooling
When Intake Air Temperature - Internal setting Temperature:
1.5°C
CompHz
=
Freq. A × Freq. H + Freq. C
=
1.53 × 46 + 2.5
=
72 Hz (It cuts down less than a decimal point)
Cooling & Soft Dry
E18CK
E21CK
Freq. A
Freq. C
Freq. A
Freq. C
Low Load (Freq. H
9)
1.2
5.0
1.7
7.0
High Load (Freq. H > 10)
1.53
2.5
2.0
4.0
Heating
E18CK
E21CK
Freq. A
Freq. C
Freq. A
Freq. C
Low Load (Freq. H
11)
1.6
8.0
1.9
7.0
High Load (Freq. H > 12)
2.2
1.0
2.35
1.0
Freq. Range
E18CK
E21CK
Cooling
Fc
72
96
Operation Range
12 ~ 86
12 ~ 102
Heating
Fh
86
92
Operation Range
14 ~ 128
14 ~ 128
8.1.2. Compressor Operation Frequency
Intake Air Temperature - Internal Setting Temperature (°C)
Freq. H
Zone
Cooling & Soft Dry
Heating
Cooling
Soft Dry
Heating
Remark
1
-2.0
1.5
1
1
1
2
-1.5
1.0
1
1
1
3
-1.0
0.5
14
8
11
4
-0.5
0.0
20
8
15
5
0.0
-0.5
27
8
22
6
0.5
-1.0
35
11
27
7
1.0
-1.5
43
11
36
8
1.5
-2.0
46
11
39
Fc, Fh
9
2.0
-2.5
46
11
39
Fc, Fh
10
2.5
-3.0
46
11
39
Fc, Fh
11
Nil
-3.5
Nil
Nil
39
Fh
12
Nil
-4.0
Nil
Nil
39
Fh
Operating Frequency Calculation Formula:
Remarks:
When Freq. H is equal to 46 (Cooling), 39 (Heating) or above, the Comp. may run at the freq. higher than Fc or Fh up to max.
freq. operation.
Best Amenity Control
Every 90s (Cooling), 120s (Heating) maintain same zone Freq. H + 1 until Fc (46), Fh (39).
8.1.3. Cooling Operation
8.1.3.1. Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5°C.
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF
point +0.5°C.
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