8.5.4 Compressor current limit protection
Temperature interval.of current limit is same as range of T4 limited frequency.
Cooling mode:
T4
CoolZone5
CoolZone4
CoolZone3
CoolZone2
CoolZone1
Heating mode:
T4
HeatZone4
HeatZone3
HeatZone2
HeatZone1
8.5.5 Indoor / outdoor units communication protection
If the indoor units cannot receive the feedback signal from the outdoor units for 2 minutes, the AC will stop
and display the failure.
8.5.6 High condenser coil temp. protection.
T3
Resume
Off
Decrease
Hold
8.5.7 Outdoor unit anti-freezing protection
When T2<4
℃
for 250 seconds or T2<0
℃
, the indoor unit capacity demand will be zero and resume to
normal when T2>8
℃
and the time of protection is no less than 3 minutes.
8.5.8 Oil return
Running rules:
1. If the compressor frequency keeps lower than setting frequency for setting time, the AC will rise the
frequency to setting frequency for setting time and then resume to former frequency.
2. The EXV will keep 300p while the indoor units will keep the current running mode.
Summary of Contents for FS2MIF-141AE2
Page 8: ...5 Wiring diagram FS2MIF 141AE2 FS2MIF 181AE2 FS3MIF 211AE2 FS3MIF 271AE2 8 ...
Page 9: ...FS4MIF 281AE2 FS4MIF 361AE2 9 ...
Page 10: ...FS5MIF 421AE0 10 ...
Page 33: ...9 3 1 2 Indoor outdoor units communication error ...
Page 41: ...9 3 3 2 Communication malfunction between IPM board and outdoor main board ODU E3 ...
Page 44: ...9 3 3 5 High pressure protection ODU P1 For FS4MIF 281AE2 FS4MIF 361AE2 FS5MIF 421AE0 ...
Page 46: ...9 3 3 7 Current protection of compressor ODU P3 ...
