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12.2 Protection Control For Cooling & Soft Dry Operation
12.2.1 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.
•
12.2.2 Cooling Overload Control
•
Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation
frequency).
•
The compressor stops if outdoor pipe temperature exceeds 61°C (S9, 12NK), 63°C (S18NK) and 65°C (S24,
28NK).
•
If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95 indicated: outdoor high pressure rise
protection).
12.2.3 Freeze Prevention Control 1
•
When indoor heat exchanger temperature is lower than 0°C continuously for 6 minutes, compressor will stop
operating.
•
Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 5°C.
•
At the same time, indoor fan speed will be higher than during its normal operation.
•
If indoor heat exchanger temperature is higher than 5°C for 5 minutes, the fan speed will return to its normal
operation.
12.2.4 Freeze Prevention Control 2
•
Control start conditions
o
During Cooling operation and soft dry operation
During thermo OFF condition, indoor intake temperature is less than 10°C or
Compressor stops for freeze prevention control
o
Either one of the conditions above occurs 5 times in 60 minutes.
•
Control
contents
o
Operation
stops
o
Timer LED blinks and “H99” indicated
12.2.5 Dew Prevention Control 1
•
To prevent dew formation at indoor unit discharge area.
•
This control will be activated if:
o
Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled.
o
When Cooling or Dry mode is operated more than 20 minutes or more.
•
This control stopped if:
o
Compressor
stopped.
o
Remote control setting changed (fan speed / temperature).
o
Outdoor air temperature and indoor intake temperature changed.
•
Fan speed will be adjusted accordingly in this control.
Summary of Contents for CS-S9NKR
Page 11: ...11 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control...
Page 12: ...12 4 Dimensions 4 1 Indoor Unit 4 1 1 CS S9NKR CS S12NKR...
Page 13: ...13 4 1 2 CS S18NKR CS S24NKR CS S28NKR...
Page 14: ...14 4 2 Outdoor Unit 4 2 1 CU S9NKR CU S12NKR 4 2 2 CU S18NKR CU S24NKR CU S28NKR...
Page 15: ...15 5 Refrigeration Cycle Diagram 5 1 CS S9NKR CU S9NKR CS S12NKR CU S12NKR...
Page 16: ...16 5 2 CS S18NKR CU S18NKR CS S24NKR CU S24NKR CS S28NKR CU S28NKR...
Page 17: ...17 6 Block Diagram 6 1 CS S9NKR CU S9NKR CS S12NKR CU S12NKR...
Page 18: ...18 6 2 CS S18NKR CU S18NKR...
Page 19: ...19 6 3 CS S24NKR CU S24NKR...
Page 20: ...20 6 4 CS S28NKR CU S28NKR...
Page 21: ...21 7 Wiring Connection Diagram 7 1 Indoor Unit 7 1 1 CS S9NKR CS S12NKR...
Page 22: ...22 7 1 2 CS S18NKR CS S24NKR CS S28NKR...
Page 25: ...25 7 2 3 CU S24NKR...
Page 26: ...26 7 2 4 CU S28NKR...
Page 27: ...27 8 Electronic Circuit Diagram 8 1 Indoor Unit 8 1 1 CS S9NKR CS S12NKR...
Page 28: ...28 8 1 2 CS S18NKR CS S24NKR CS S28NKR...
Page 29: ...29 8 2 Outdoor Unit 8 2 1 CU S9NKR CU S12NKR...
Page 30: ...30 8 2 2 CU S18NKR...
Page 31: ...31 8 2 3 CU S24NKR...
Page 32: ...32 8 2 4 CU S28NKR...
Page 34: ...34 9 1 1 2 CS S18NKR CS S24NKR CS S28NKR 9 1 2 Indicator Printed Circuit Board...
Page 35: ...35 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board 9 2 1 1 CU S9NKR CU S12NKR...
Page 36: ...36 CN DEMAND AC GND CN PWR...
Page 37: ...37 9 2 2 CU S18NKR...
Page 38: ...38 9 2 3 CU S24NKR CU S28NKR...
Page 42: ...42...
Page 90: ...90 Figure 3 Figure 4 15 1 1 3 To remove discharge grille Figure 5...
Page 92: ...92 Figure 9 Figure 10...
Page 96: ...96 Figure 20 Figure 21...
Page 124: ...124 Printed in Malaysia SB0712 0...