75
12.10 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 based on outdoor air temperature.
12.11 Cooling Overload Control
•
Pipe temperature limitation / restriction.
o
Detects the outdoor pipe temperature and carry out restriction / limitation below (Limit the compressor
operation frequency)
o
The compressor stops if outdoor pipe temperature exceeds 61°C (S9NK), 63°C (S12, 18, 24, 28NK).
o
If the compressor stops 4 times in 20 minutes, Timer LED blinks (“F95” indicated: Outdoor high pressure rise
protection)
12.12 Freeze Prevention Control 1
•
When indoor hear exchanger temperature is lower than 0°C continuously for 6 minutes, compressor will stops
operation.
•
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 is higher than 5°C for 5 minutes, the fan speed will return to its normal operation.
12.13 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
12.14 Dew Prevention Control
•
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 COOL 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.
Free
Limited Frequency
Outdoor air temperature
38°C
37°C
Summary of Contents for CS-S9NKV
Page 15: ...15 4 2 3 CU S18NKV CU S24NKV...
Page 16: ...16 4 2 4 CU S28NKV...
Page 17: ...17 5 Refrigeration Cycle Diagram 5 1 CS S9NKV CU S9NKV CS S12NKV CU S12NKV...
Page 18: ...18 5 2 CS S18NKV CU S18NKV CS S24NKV CU S24NKV...
Page 19: ...19 5 3 CS S28NKV CU S28NKV...
Page 24: ...24 7 Wiring Connection Diagram 7 1 Indoor Unit 7 1 1 CS S9NKV CS S12NKV...
Page 25: ...25 7 1 2 CS S18NKV CS S24NKV...
Page 26: ...26 7 1 3 CS S28NKV...
Page 31: ...31 8 Electronic Circuit Diagram 8 1 Indoor Unit 8 1 1 CS S9NKV CS S12NKV...
Page 32: ...32 8 1 2 CS S18NKV CS S24NKV...
Page 33: ...33 8 1 3 CS S28NKV...
Page 41: ...41 9 1 5 Human Activity Sensor Printed Circuit Board...
Page 42: ...42 9 2 Outdoor Unit 9 2 1 Main Printed Circuit Board 9 2 1 1 CU S9NK...
Page 43: ...43 9 2 1 2 CU S12NK...
Page 44: ...44 9 2 1 3 CU S18NK CU S24NK...
Page 45: ...45 9 2 1 4 CU S28NK...
Page 46: ...46 9 2 2 Noise Filter Printed Circuit Board 9 2 2 1 CU S9NKV...
Page 47: ...47 9 2 2 2 CU S28NKV...