Compressor Operation Frequency; Cooling Operation; Thermostat Control - Panasonic CS-XE9CKE Service Manual

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8.1.2.

Compressor Operation Frequency

Zone Intake Air Temperature - Internal Setting Temperature (°C)
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.: XE9CK
Operation Mode: Cooling
When Intake Air Temperature - Internal setting Temperature:
1.5°C
CompHz = Freq. A × Freq. H + Freq. C
= 1.9 × 20 + 1.0
= 39 Hz (It cuts down less than a decimal point)
Remarks:
When Freq. H is equal to 20 (XE9CK), 27 (XE12CK) for cooling, 25 (XE9CK), 32 (XE12CK) for 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.
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
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Freq. H
Cooling Soft Dry
XE9CK XE12CK XE9CK XE12CK XE9CK XE12CK
2 1 5
2 5 10
4 8 10
9 12 10
11 14 12
14 18 12
17 22 14
20 27 14
20 27 16
20 27 20
Nil Nil Nil
Nil Nil Nil
Cooling & Soft Dry
Low Load (Freq. H 10)
High Load (Freq. H > 10)
Heating
Low Load (Freq. H 12)
High Load (Freq. H > 12)
Freq. Range
Cooling Fc
Operation Range
Heating Fh
Operation Range
17
CS-XE9CKE CU-XE9CKE / CS-XE12CKE CU-XE12CKE
Heating Remark
5 1 1
10 3 8
10 6 13
12 11 18
14 15 23
17 18 27
17 21 30
20 25 32 Fc, Fh
24 25 32 Fc, Fh
27 25 32 Fc, Fh
Nil 25 32
Nil 25 32
XE9CK XE12CK
Freq. A Freq. C Freq. A
0.9 11.0 0.9
1.9 1.0 1.9
XE9CK XE12CK
Freq. A Freq. C Freq. A Freq. C
1.4 10.6 1.4
2.2 1.0 2.1
XE9CK XE12CK
39 52
12 ~ 86 12 ~ 102
56 69
14 ~ 128 14 ~ 128
Fh
Fh
Freq. C
11.0
0.7
10.6
1.8