47
13. Protection
Control
13.1 Protection Control For All Operations
13.1.1 Restart
Control
(Time Delay Safety Control)
•
The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on
again by pressing OFF/ON button at remote control within this period.
•
This control is not applicable if the power supply is cut off and on again.
•
This phenomenon is to balance the pressure inside the refrigerant cycle.
13.1.2 Total Running Current Control
1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor
operation will be decreased.
2. If the running current does not exceed X value for 10 seconds, the frequency instructed will be increased.
3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for 3
minutes.
Model
NE9NKE, QE9NKE
NE12NKE, QE12NKE
Operation Mode
X (A)
Y (A)
X (A)
Y (A)
Cooling / Soft Dry (A)
4.12
5.72
Cooling / Soft Dry (B)
3.51
5.18
Cooling / Soft Dry (C)
3.51
5.18
Heating 5.41
14.76
7.74
14.76
4. The first 30 minutes of cooling operation, (A) will be applied.
40°C
39°C
Outdoor air temperature
39°C
38°C
(C)
(A)
(B)
13.1.3 IPM (Power Transistor) Prevention Control
A. Overheating Prevention Control
1. When the IPM temperature rises to 100°C, compressor operation will stop immediately.
2. Compressor operation restarts after 3 minutes the temperature decreases to 95°C.
3. If this condition repeats continuously 4 times within 20 minutes, timer LED will be blinking (“F96” is indicated).
B. DC Peak Current Control
1. When electric current to IPM exceeds set value of 20.2 A, the compressor will stop operate. Then, operation
will restart after 3 minutes.
2. If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will
restart after 1 minute.
3. If the set value exceeded again within 30 seconds after the compressor starts, the operation will restart after
2 minutes. If this condition repeats continuously for 7 times, all indoor and outdoor relays will be cut off, timer
LED will be blinking (“F99” is indicated).
Summary of Contents for CS-NE9NKE
Page 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control...
Page 13: ...13 5 Dimensions 5 1 Indoor Unit...
Page 14: ...14 5 2 Outdoor Unit...
Page 15: ...15 6 Refrigeration Cycle Diagram...
Page 16: ...16 7 Block Diagram...
Page 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit...
Page 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit...
Page 20: ...20 9 2 Outdoor Unit...
Page 23: ...23 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board...
Page 29: ...29...
Page 90: ...90 Figure 3 Figure 4 16 1 1 3 To remove discharge grille Figure 5...
Page 92: ...92 Figure 8 Figure 9...
Page 93: ...93 Figure 10...
