Air-Con ABSCI4H4S09, Руководство по обслуживанию

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63
DC compressor
start failure
  
a. the outdoor drive board is failure;
b. the compressor is failure
Outdoor ambient
temperature too
low protection
★  
a
、
Outdoor ambient temperature too low
Mark description: the lights flash every two seconds for the following faults
Protection against
overheated
outdoor radiator
Ο × ×
a. Radiator sensors fail
b. Detection circuit of the sensor on the
control panel fails
Protection of the
system against too
high pressure
Ο Ο ×
a. The pressure switch fails
b. The pressure detection switch on the control
panel fails
c. The measured value of the system pressure
exceeds the limit
When the compressor is in operation:
Mark description:
★：
Light
Ο
：
Flash
×
：
Off; the flash cycle is 1S
No. LED1 LED2 LED3
Reasons for the current operating frequency
of the compressor is limited
1
Ο Ο Ο
Normal frequency rising and decreasing, no
limitation
2
× ×
★
Frequency decreasing or prohibition of
frequency rising caused by over-current
3
×
★ ★
Frequency decreasing or prohibition of
frequency rising caused by anti-freezing of
refrigeration or anti-overload in heating
4
★
×
★
Frequency decreasing or prohibition of
frequency rising caused by too high compressor
discharge temperature
5 Limit to the max operating frequency caused by
too low power voltage