Indoor Unit Outdoor Unit CS-E24NKES CS-E28NKES CU-E24NKE ...
Indoor Unit Outdoor Unit CS-E24NKES CS-E28NKES CU-E24NKE ...
Indoor Unit Outdoor Unit CS-E24NKES CS-E28NKES CU-E24NKE ...
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13. Protection Control<br />
13.1 Protection Control For All Operations<br />
13.1.1 Time Delay Safety Control<br />
� The compressor will not start for three minutes after stop of operation.<br />
� This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition.<br />
13.1.2 Total Running Current Control<br />
� When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor<br />
operation will be decreased.<br />
� If the running current does not exceed X value for five seconds, the frequency instructed will be increased.<br />
� However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for<br />
3 minutes.<br />
Model E24NK E28NK<br />
Operation Mode X (A) Y (A) X (A) Y (A)<br />
Cooling/Soft Dry (A) 15.03 19.02 15.21 19.02<br />
Cooling/Soft Dry (B) 13.63 19.02 13.81 19.02<br />
Cooling/Soft Dry (C) 15.03 19.02 15.21 19.02<br />
Heating 13.35 19.02 15.67 19.02<br />
� The first 30 minutes of cooling operation, (A) will be applied.<br />
13.1.3 IPM (Power transistor) Prevention Control<br />
� Overheating Prevention Control<br />
o When the IPM temperature rises to 110°C, compressor operation will stop immediately.<br />
o Compressor operation restarts after three minutes the temperature decreases to 95°C.<br />
o If this condition repeats continuously 4 times within 20 minutes, timer LED will be blinking (“F96” is indicated).<br />
� DC Peak Current Control<br />
o When electric current to IPM exceeds set value of 30.0 ± 5.0 A, the compressor will stop operate. Then,<br />
operation will restart after three minutes.<br />
o If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will<br />
restart after one minute.<br />
o If the set value is exceeded again within 30 seconds after the compressor starts, the operation will restart<br />
after one minute. If this condition repeats continuously for seven times, all indoor and outdoor relays will be<br />
cut off, timer LED will be blinking (“F99” is indicated).<br />
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