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15. Protection Control
15.1 Protection Control For All Operations
15.1.1 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.
15.1.2 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 5 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
HZ9RKE-1, HZ9RKE-5, AZ9RKE-1
HZ12RKE-1
Operation Mode
X (A)
Y (A)
X (A)
Y (A)
Cooling / Soft Dry (A)
3.43
14.76
5.87
14.76
Cooling / Soft Dry (B)
2.79
5.34
Cooling / Soft Dry (C)
2.79
5.34
Heating
7.37
9.50
4. The first 30 minutes of cooling operation, (A) will be applied.
Outdoor air temperature
38.5°C
37.5°C
(A)
(B)
15.1.3 IPM (Power Transistor) Prevention Control
A. Overheating Prevention Control
1. When the IPM temperature rises to 120°C, compressor operation will stop immediately.
2. Compressor operation restarts after 3 minutes the temperature decreases to 110°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 ± 2.0 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).
Содержание CS-HZ9RKE-1
Страница 28: ...28 11 1 4 Receiver Printed Circuit Board CN RCV 11 1 5 Fuse Printed Circuit Board ACL501 ACN501 ACL502 ACN502 ...
Страница 117: ...117 18 1 1 4 To remove control board Figure 6 18 1 1 5 To remove cross flow fan and indoor fan motor Figure 7 ...
Страница 118: ...118 Figure 8 Figure 9 ...
Страница 119: ...119 Figure 10 ...