9.3.3.3 Voltage protection(ODU E5)
Voltage protection
Check the voltage of
outdoor unit power supply,
whether the voltage
between L(L1) and N (L2) is
about 220~240VAC
Check the power supply
Check whether the voltage
of IPM board P and N is
normal? DC277-356V for
18-27KBtu/h; DC277-410V
for 36-42KBtu/h
Replace bridge rectifiers,
and then check whether the
system can run normally
Replace IPM board, and
then check whether the
system can run normally
Replace outdoor main board
Yes
No
No
No
No
Yes
Trouble is solved
Yes
Yes
Содержание FS2MIF-141AE2
Страница 8: ...5 Wiring diagram FS2MIF 141AE2 FS2MIF 181AE2 FS3MIF 211AE2 FS3MIF 271AE2 8 ...
Страница 9: ...FS4MIF 281AE2 FS4MIF 361AE2 9 ...
Страница 10: ...FS5MIF 421AE0 10 ...
Страница 33: ...9 3 1 2 Indoor outdoor units communication error ...
Страница 41: ...9 3 3 2 Communication malfunction between IPM board and outdoor main board ODU E3 ...
Страница 44: ...9 3 3 5 High pressure protection ODU P1 For FS4MIF 281AE2 FS4MIF 361AE2 FS5MIF 421AE0 ...
Страница 46: ...9 3 3 7 Current protection of compressor ODU P3 ...