6. Low Pressure Control (Gas Leakage Detection)
·
When the following conditions as shown in the below table occur, the compressor stops and restarts after 3 minutes. If this
phenomenon is continuously occurring twice within 20 minutes, the air conditioner will stop operation and the Timer LED
blinks. At this time, [F91] is displayed on the indoor unit.
Comp. Frequency 75Hz 92Hz
Total Running
Current
1.51 A and
2.8 A
1.51 A and
3.1 A
Indoor Heat
Exchanger Temp.
20
or above
25
or below
Operation Cooling / Soft Dry Heating
Note:
The above conditions are not valid during Deice operation.
● this conditions are continuous for 5 minutes.
7. Minimum Frequency Operation Protection
·
When the compressor operates at less than 30Hz for 60 minutes, the operating frequency will increase to 35Hz for 2
minutes.
8. DC Peak Current Control
·
When the electric current to the power transistor exceeds the set value, DC 24±3A, the compressor stops. The compressor
restarts after 3 minutes.
·
If within 30 seconds the set value exceeds again, the compressor will stop for 1 minte.If this condition repeats 7 times, all
indoor and outdoor relays will be turned off; TIMRLED will blink and F99 is displayed.
9. DC Reset
·
When the voltage supply (DC) to power transistor is below the set value i.e, 178±5V, the compressor is stopped. The
compressor will restart after 3 minutes.
·
If within 30 seconds the voltage supply (DC) is below the set value again after start of the compressor, all indoor and outdoor
relays will be turned off and all the LEDs will blink.
10. High Power Supply Voltage Protection
·
When the voltage supply (AC) exceeds 295 ± 15V(T
), the air conditioner stops and restarts automatically when the voltage
supply (AC) is below (T
-5)V. However, waiting for 3 minutes is necessary for re-operation.
37
CS-MVG103KE / CU-MVG153KE
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