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13.1.9.
Low Frequency Protection Control 2
• When all the below conditions comply, the compressor frequency will change to lower frequency.
13.2. Protection Control For Cooling & Soft Dry Operation
13.2.1.
Outdoor Air Temperature Control
• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.
• This control will begin 1 minute after the compressor starts.
• Compressor frequency will adjust base on outdoor air temperature.
13.2.2.
Cooling Overload Control
• Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency)
• The compressor stop if outdoor pipe temperature exceeds 61
q
C
• If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95 indicated: outdoor high pressure rise protection)
13.2.3.
Freeze Prevention Control
1. When indoor heat exchanger temperature is lower than 0
q
C continuously for 6 minutes, compressor will stop operating.
2. Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 13
q
C.
3. At the same time, indoor fan speed will be higher than during its normal operation.
4. If indoor heat exchanger temperature is higher than 13
q
C for 5 minutes, the fan speed will return to its normal operation.
13.2.4.
Dew Prevention Control 1
• To prevent dew formation at indoor unit discharge area.
• This control will be activated if:
- Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled.
- When Cooling or Dry mode is operated more than 20 minutes or more.
• This control stopped if:
- Compressor stopped.
- Remote control setting changed (fan speed / temperature).
- Outdoor air temperature and indoor intake temperature changed.
• Fan speed, angle of louver (vertical airflow angle) will be adjusted accordingly in this control.
- Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode.
- The angle of horizontal louver will be changed as table below:
Temperature, T, for:
Cooling/Soft Dry
Heating
Indoor intake air (
q
C)
T < 15 or T 30
—
Outdoor air (
q
C)
T < 16 or T 38
T < 4 or T 24
Indoor heat exchanger (
q
C)
T < 30
T
0
Operation Mode
Airflow Direction
Vane Angle (
q
)
1
2
3
4
5
Cooling and e-ion
Auto
22 ~ 30
Manual
22
24
26
28
30
Summary of Contents for CS-E7HKEW
Page 1: ... ...
Page 13: ...13 2 5 Outdoor Unit CU 2E15GBE ...
Page 14: ...14 2 6 Outdoor Unit 3E18EBE ...
Page 15: ...15 2 7 Outdoor Unit CU 3E23CBPG CU 4E27CBPG ...
Page 16: ...16 ...
Page 17: ...17 ...
Page 18: ...18 ...
Page 21: ...21 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...
Page 22: ...22 5 Dimensions 5 1 Indoor Unit ...
Page 23: ...23 5 2 Outdoor Unit 5 2 1 CU E7HKE CU E9HKE CU E12HKE 5 2 2 CU E15HKE ...
Page 26: ...26 7 Block Diagram 7 1 CS E7HKEW CU E7HKE CS E9HKEW CU E9HKE CS E12HKEW CU E12HKE ...
Page 27: ...27 7 2 CS E15HKEW CU E15HKE ...
Page 28: ...28 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Page 29: ...29 8 2 Outdoor Unit 8 2 1 CU E7HKE CU E9HKE CU E12HKE ...
Page 30: ...30 8 2 2 CU E15HKE ...
Page 31: ...31 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Page 32: ...32 9 2 Outdoor Unit 9 2 1 CU E7HKE CU E9HKE CU E12HKE ...
Page 33: ...33 9 2 2 CU E15HKE ...
Page 34: ...34 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 36: ...36 10 2 Outdoor Unit 10 2 1 CU E7HKE CU E9HKE CU E12HKE ...
Page 37: ...37 10 2 2 CU E15HKE ...
Page 67: ...67 16 1 3 To remove discharge grille ...
Page 68: ...68 16 1 4 To remove control board 16 1 5 To remove cross flow fan and indoor fan motor ...
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Page 72: ...72 17 Technical Data 17 1 Operation Characteristics 17 1 1 CS E7HKEW CU E7HKE ...
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Page 76: ...76 17 1 2 CS E9HKEW CU E9HKE ...
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Page 80: ...80 17 1 3 CS E12HKEW CU E12HKE ...
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Page 84: ...84 17 1 4 CS E15HKEW CU E15HKE ...
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