6.CONTROL MODE
When the temperature of the indoor coil
≥
78
℃
, the compressor will stop;
When the temperature
≥
63
℃
, the outdoor flow speed will turn to the low speed, and the
compressor runs at the descending frequency;
When the temperature
＜
58
℃
, the compressor will prohibit the frequency from rising.
7 . Air cleaning
The outdoor unit doesn’t work in this mode, and the indoor fan runs in cooling mode.
8.Protection
8.1 Abnormal sensor: when the sensor is short circuited or cut off, the compressor will stop, and
the trouble code will be displayed.
8.2. IPM error
In the case of IPM abnormalities, e.g. overheat (100
℃）， ｏｖｅｒｃｕｒｒｅｎｔ （１７Ａ）， ｏｒ ｌｏｗ ｄｒｉｖｉｎｇ
ｖｏｌｔａｇｅ （ｂｅｌｏｗ １２Ｖ）， ｂｏｔｈ ｔｈｅ ｃｏｍｐｒｅｓｓｏｒ ａｎｄ ｔｈｅ ｏｕｔｄｏｏｒ ｆａｎ ｓｔｏｐ ｒｕｎｎｉｎｇ， ａｎｄ ｔｈｅ
ｃｏｒｒｅｓｐｏｎｄｉｎｇ ｅｒｒｏｒ ｃｏｄｅ ｉｓ ｄｉｓｐｌａｙｅｄ．
8.3 Temperature protection for the compressor exhaust
When the compressor exhaust temperature
＜
93
℃
, the compressor runs at the ascending
frequency;
When the temperature
≥
93
℃
, and
＜
115
℃
the compressor runs at the limit to the frequency
ascending;
When the temperature
＞
115
℃
, the compressor stops.
8.4 Abnormal power supply voltage protection
When the supply voltage is above 260V or below 150V, the compressor stops, and the trouble
code is displayed.
8.5 No load protection
Measure the total current. When the current in the outdoor unit is lower than 0.15A, the
compressor will stop operation and no load protection error is displayed.
8.6 . Economical running
During economical run (this function is set on the remote controller), the working current will be
limited (to 60% of the max working current).
9 Automatic control of the electronic expansion valve
9.1 Power-on reset
Upon power-on reset, the expansion valve shuts off for 600 seconds first, and then opens to
a degree fit for the frequency.
9.2 The expansion valve regulates according to the outlet air temperature of the compressor.
Compressor rotor position signal not available
There is an LED indicator on the IPM board of the outdoor unit. During operation of the
compressor, the LED blinks to indicate frequency restriction conditions of the compressor.
