Panasonic CS-E18CKE, CS-E21CKE, CU-E18CKE, CU-E21CKE 8.1.3.Cooling Operation, 8.1.3.1.Thermostat control, 8.1.2.Compressor Operation Frequency

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:

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

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 Operation8.1.3.1.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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