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54
15.1.1.
Relationship between the condition of the air conditioner and pressure and electric
current
• Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
15.1.2.
Diagnosis methods of a malfunction of a compressor
Cooling Mode
Condition of the air
conditioner
Low Pressure
High Pressure
Electric current during operation
Insufficient refrigerant
(gas leakage)
Clogged capillary tube or
Strainer
Short circuit in the indoor unit
Heat radiation deficiency of the
outdoor unit
Inefficient compression
Nature of fault
Symptom
• Electric current during operation becomes approximately 20% lower than the normal value.
Insufficient compressing of a compressor
• The discharge tube of the compressor becomes abnormally hot (normally 70 to 90
°
C).
• The difference between high pressure and low pressure becomes almost zero.
• Electric current reaches a high level abnormally, and the value exceeds the limit of an
ammeter. In some cases, a breaker turns off.
Locked compressor
• The compressor has a humming sound.
Summary of Contents for CS-PC12MKF
Page 10: ...10 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...
Page 11: ...11 5 Dimensions 5 1 Indoor Unit 5 1 1 CS PC12MKF ...
Page 12: ...12 5 1 2 CS PC18MKF CS PC24MKF ...
Page 13: ...13 5 2 Outdoor Unit 5 2 1 CU PC12MKF CU PC18MKF ...
Page 14: ...14 5 2 2 CU PC24MKF ...
Page 15: ...15 6 Refrigeration Cycle Diagram ...
Page 16: ...16 7 Block Diagram 7 1 CS PC12MKF ...
Page 17: ...17 7 2 CS PC18MKF CS PC24MKF ...
Page 21: ...21 9 Electronic Circuit Diagram 9 1 CS PC12MKF CU PC12MKF ...
Page 22: ...22 9 2 CS PC18MKF CU PC18MKF ...
Page 23: ...23 9 3 CS PC24MKF CU PC24MKF ...
Page 25: ...25 10 1 1 2 CS PC18MKF CS PC24MKF ...
Page 32: ...32 11 2 5 Wire Stripping And Connecting Requirement ...
Page 56: ...56 16 1 1 3 To remove Discharge Grille ...
Page 57: ...57 16 1 1 4 To remove Control Board 16 1 1 5 To remove Cross Flow Fan and Indoor Fan Motor ...
Page 58: ...58 ...
Page 60: ...60 16 2 1 3 To remove Discharge Grille ...
Page 61: ...61 16 2 1 4 To remove Control Board 16 2 1 5 To remove Cross Flow Fan and Indoor Fan Motor ...
Page 62: ...62 ...
Page 63: ...63 17 Technical Data 17 1 Thermostat Characteristics Cooling Soft Dry ...
Page 71: ...71 17 4 Cooling Capacity Performance Data CS CU PC12MKF 220V ...
Page 72: ...72 CS CU PC12MKF 240V CS CU PC18MKF 220V ...
Page 73: ...73 CS CU PC18MKF 240V ...
Page 74: ...74 CS CU PC24MKF 220V ...
Page 75: ...75 CS CU PC24MKF 240V ...
Page 76: ...76 17 5 Sound Data CS PC18MKF ...
Page 77: ...77 CS PC24MKF ...