Functions and control
frequency. When the temperatures are lower than 68ć and higher than 61ć, keep the frequency of
the compressor. When the temperatures are lower than 61ć, relieve the defrosting temperature protection.
5.2.13 Malfunction display and malfunction handling
a) For the complete appliance’s malfunctions˖Annex 2
If there’s malfunction with the outdoor unit, the light of the outdoor unit will flash and its frequency is 1HZ, the
number of times is according to the table, when a round of flashing is finished, the light should be off for 5
seconds.
b) For the units’ malfunctions˖Annex 1
If there’s malfunction with the units, this will not affect the run of the complete appliance, but this can be
displayed by the malfunction light, the
light flashing fr
equency is 0.5HZ, the number of times is according to
the malfunction table of the indoor units. When a round of flashing is finished, the light should be off for 10
seconds. Then report according to the order : unit A→unit B→unit C→unit D, that is, if there’s malfunction
with several units, then just report the indoor unit with the highest priority level. Among the unit malfunctions,
the priority level of the communication malfunction is the highest, for others, that appears first will have the
priority.
Remarks: in 3 minutes when the compressor stops, the units’ malfunctions are not displayed; the complete
appliance’s malfunctions are prior to the units’ malfunctions.
Annex 1˖Malfunction codes of the whole unit
Remarks: under the mode of refrigeration, the malfunctions of each unit’s thin pipe temperature sensor are
not reported, under the mode of heating, the malfunctions of each unit’s thick pipe
temperature sensor are
not reported.
Domestic air conditioner
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