Function and Control
36
8.5 In all modes: once the compressor stops, it can’t restart within 3-minute (Note: The indoor units with memory function can be
restarted after remote shutdown and powering on again without delay).
9. Outdoor Fan Control
9.1 When the unit is off by remote control
、
in safety stops or stops after reaching the setting temperature, 1min later,the outdoor
fan will stop;
9.2 In fan mode: The outdoor fan stops;
9.3 Start of defrosting: Outdoor fan will stop after compressor stops for 50S;
9.4 Finish of defrosting: Outdoor fan will start up when the compressor stops.
10. 4-way valve control
10.1 The 4-way valve is off under the modes of Cooling, dry and fan;
10.2 In heating mode, the 4-way valve is energized;
10.3 When the unit is off in heating mode or heating mode shifts to other modes, the 4-way valve will be de-energized after
compressor stops for 2min;
10.4. After protection stops, the 4-way valve will be de-energized after 4min;
10.5 Start of defrosting: when entering defrosting mode, 4-way valve will be de-energized after the compressor stops for 50s;
10.6 Finish of defrosting: The 4-way valve will be energized after the compressor stops for 50s.
11. Anti-freezing protection
11.1 In cooling and dry mode, if Tindoor pipe
＜
0 is detected for 3min continuously, the unit will stop; if 6
℃
＜
Tindoor pipe, and
compressor has stopped for 3min, the unit will resume running;
11.2 In cooling and dry mode, if Tindoor pipe
＜
6
℃
, running frequency of compressor will be decreased or stop increasing;
11.3 If the unit stops as anti-freezing protection for 6 times, it can not resume running automatically and display trouble code, it
can resume by pressing ON/OFF button. During operation, if the compressor operates for over 10min, the times of anti-freezing
protection stop will be cleared to zero. When the unit is off/ fan/ heating mode, the malfunction and malfunction times will be
cleared to zero. (If the malfunction can not be removed)
12. Overload protection
12.1 In cooling and dry mode: if 65
℃
≤Toutdoor pipe, the unit will stop; if Toutdoor pipe
＜
55
℃
, and compressor has stopped for
3min, the unit will resume running;
12.2 In cooling and dry mode: if 55
℃
≤Toutdoor pipe, running frequency of compressor will be decreased or stop increasing;
12.3 In heating mode: if 64
℃
≤Tindoor pipe, the unit will stop; if Tindoor pipe
＜
54
℃
, and compressor has stopped for 3min, the
unit will resume running;
12.4 In heating mode: if 54
℃
≤Tindoor pipe, running frequency of compressor will be decreased or stop increasing;
12.5 If the unit stops as overload protection for 6 times, it can not resume running automatically and display malfunction. It can
resume running by pressing ON/OFF.During operation, if the compressor has operated for over 10 min, the times of overload
protection stop will be cleared to zero. When the unit is off or in Fan mode or shifts to heating mode, the malfunction and
malfunction times will be cleared to zero immediately. (If the malfunction can not be removed)
13. Compressor discharge temperature protection
13.1 If 115
℃
≤Tdischarge, the unit will stop; if Tdischarge
＜
97
℃
, and compressor has stopped for 3min, the unit will resume
running;
13.2 If 97
℃
≤Tdischarge, running frequency of compressor will be decreased or stop increasing;
13.3 If the unit stops as protection of compressor discharge temperature for 6 times, it can not resume running
automatically and malfunction will be displayed. It can resume running by pressing ON/OFF. During operation, if the compressor
has operated for over 10min, the time of compressor discharge temperature stop will be cleared to zero.When the unit is off/
shifts to fan mode, the malfunction and malfunction times will be cleared. (If the malfunction can not be removed)
14. Current protection
14.1. If 12A≤I alternating-current, running frequency of compressor will be decreased or stop increasing;
14.2. If 17A≤I alternating-current, the unit will stop; and after compressor has stopped for 3min, the unit will resume running;
14.3 If the unit stops as protection for compressor discharge temperature for 6 times, it can not resume running automatically
and malfunction will be displayed. It can resume by pressing ON/OFF button. During operation, if the compressor has operated
for over 10 min, the time of compressor discharge temperature stop will be cleared to zero.
15. Drop off voltage
During compressor operation, the system will stop and malfunction of drop off voltage will occur if voltage downward fluctuates
rapidly, and it will re-start up automatically 3min later.
