Compressor Operation Frequency; Cooling Operation; Thermostat Control - Panasonic CS-E24CKE Service Manual

8.1.2.

Compressor Operation Frequency

Intake Air Temperature - Internal Setting Temperature (°C)
Zone Cooling
1 -2.0
2 -1.5
3 -1.0
4 -0.5
5 0.0
6 0.5
7 1.0
8 1.5
9 2.0
10 2.5
11 Nil
12 Nil
Operating Frequency Calculation Formula:
CompHz = Freq. A × Freq. H + Freq. C
Example Calculation:
Model No.: E24CK
Operation Mode: Cooling
When Intake Air Temperature - Internal setting Temperature:
1.5°C
CompHz = Freq. A × Freq. H + Freq. C
= 1.8 × 30 + 13.0
= 67 Hz (Decimal point is ignored)
Remarks:
When Freq. H is equal to 30 (Cooling), 35 (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, Fh.
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.
Soft Dry Heating
-3.0 1.0
-2.5 0.5
-2.0 0.0
-1.5 -0.5
-1.0 -1.0
-0.5 -1.5
0.0 -2.0
0.5 -2.5
1.0 -3.0
1.5 -3.5
Nil -4.0
Nil -4.5
15
Cooling Soft Dry
1 5
11 10
15 12
18 14
22 16
25 18
28 21
30 24
30 27
30 30
Nil Nil
Nil Nil
Cooling & Soft Dry
Low Load (Freq. H 13)
High Load (Freq. H > 13)
Heating
Low Load (Freq. H 15)
High Load (Freq. H > 15)
Freq. Range
Cooling Fc
Operation Range
Heating Fh
Operation Range
CS-E24CKE CU-E24CKE
Freq. H
Heating Remark
3
13
17
21
26
32
35 Fh
35 Fc, Fh
35 Fc, Fh
35 Fc, Fh
35 Fh
35 Fh
E24CK
Freq. A Freq. C
2.0 10.0
1.8 13.0
E24CK
Freq. A Freq. C
1.5 11.0
1.7 8.0
E24CK
64
14 ~ 74
68
14 ~ 100