17
The difference between current limit
and shutdown current
Cooling T4≥50℃ current limit value
Cooling 49>T4≥45℃ current limit
value
Cooling 44>T4≥41℃ current limit
value
Cooling 40﹥T4≥33℃ current limit
value
Cooling 32>T4℃current limit value
Cooling stop protection current value
Heating mode:
℃
15
14 HeatT4Zone4I
10
9 HeatT4Zone3I
6
5 HeatT4Zone2I
HeatT4Zone1I
The difference between current limit
and shutdown current
Heating T4≥15℃current limit
value
Heating 14>T4≥10℃ current
limit value
Heating 9>T4≥6℃ current limit
value
Heating 5>T4 current limit value
Heating stop protection current
value
5.3.7 Indoor / Outdoor Units Communication
Protection
If the indoor units do not receive the feedback
signal from the outdoor units for 2 consecutive
minutes, the unit stops. The unit displays the
failure code.
5.3.8 High Condenser Coil Temp. Protection
5.3.9 Outdoor Unit Anti-Freezing Protection
When T2<4℃ for 250seconds or T2<0℃, the
indoor unit capacity demand is zero and resumes
normal operation when T2>8℃ and the protection
time is no less than 3 minutes.
5.3.10 Oil Return
Rules for Operation
1. If the compressor frequency continues to be
lower than the frequency set for setting time, the
unit raises the frequency to the frequency set for
setting time and then resumes with the former
frequency.
2. The EXV continues at 300p while indoor units
maintain their operation.
T3
R e s u m e
O ff
D e c re a s e
H o ld
50
49
45 CoolT4Zone4I
44
41
40 CoolT4Zone3I
33
32
CoolT4Zone2I