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9.4.1.3 zero-crossing signal error diagnosis and solution.
Malfunction decision
conditions
When PCB does not receive zero crossing signal feedback for
4 minutes or the zero crossing signal time interval is abnormal.
Supposed causes
●
Connection mistake
●
PCB faulty
Trouble shooting:
PIC
4:
Check
point
button,
press
1
time
for
check
how
many
indoor
units
are
connected.(
YN027GMFI16M3D)
Check
point
button,
press
18
times
for
check
how
many
indoor
units
are
connected.(for
Others)
PIC3
:Main
board
LED
when
power
on
and
unit
standby.
Содержание YN018GMFI16M2D
Страница 19: ...7 Wiring Diagrams 8 1 Wiring diagram of DUAL Circuit outdoor unit YN018GMFI16M2D ...
Страница 20: ...PCB board of YN018GMFI16M2D ...
Страница 21: ...IPM board of YN018GMFI16M2D ...
Страница 22: ...8 2 Wiring diagram of Triple Circuit outdoor unit YN027GMFI16M3D YN030GMF16M3D ...
Страница 23: ...PCB board of YN030GMFI16M3D ...
Страница 24: ...IPM board of YN030GMFI16M3D ...
Страница 25: ...PCB board of YN027GMFI16M3D ...
Страница 26: ...IPM board of YN027GMFI16M3D ...
Страница 27: ...8 3 Wiring diagram of Quadruple 4 zone outdoor unit YN036GMFI16M4D ...
Страница 28: ...PCB board of YN036GMFI16M4D ...
Страница 29: ...IPM board of YN036GMFI16M4D ...
Страница 30: ...PFC board of YN036GMFI16M4D ...
Страница 46: ......
Страница 48: ...9 4 1 7 Over voltage or too low voltage protection diagnosis and solution ...
Страница 60: ...IPM for dual tri zone IPM for quad zone P N for dual tri zone ...
Страница 61: ...P N for quad zone ...
Страница 62: ...bridge rectifier for dual tri zone bridge rectifier for quad zone ...
Страница 63: ...Remark Measure the DC voltage between and port The normal value should be 190V 250V ...
Страница 65: ...Two ports of the inductance Inductance ...
Страница 66: ......
Страница 71: ......
Страница 73: ......
Страница 75: ......
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Страница 89: ...6 EXV check Disconnect the connectors ...
Страница 91: ...Red Blue Red Yellow ...
Страница 92: ...Brown Orange Brown White ...
Страница 108: ...Screws of front panel Screws of right rear panel Screws of top cover ...
Страница 116: ...Screws of big handle Screws of right rear panel Screws of water collector Screws of terminal board ...
Страница 122: ...10 Exploded Views Available under a separate document file ...