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.
17
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