13-1
TROUBLESHOOTING
SM DL
F
1
-A.1 GB
13.
TROUBLESHOOTING
13.1
Precaution, Advise and Notice Items
13.1.1
High voltage in Indoor and Outdoor unit electrical assembly
Open the Outdoor unit controller assembly only after one minute from power off.
Whole controller assembly, including the wires, connected to the Outdoor unit may
have the potential hazard voltage when power is on.
Touching the Outdoor unit controller assembly may cause an electrical shock.
into the controller when power is on.
13.1.2 Charged
Capacitors
Large capacity electrolytic capacitors are used in the outdoor unit controller and
driver.
Charging voltage (380VDC) remains after power is down.
Discharging takes about one minute after turned off.
Touching the outdoor unit electrical assembly before discharging may cause an
electrical shock.
Measure the electrolytic capacitors voltage to be below 50VDC before further checking
electrical assembly parts.
13.1.3 Advisory
Notes
When open the Outdoor unit electrical assembly, don’t touch the soldering pin by
hand or by any conductive material.
When connecting or disconnecting the connectors on the PCB, hold the whole
housing, don’t pull the wire.
WARNING!!!
¾
When Power Up – the outdoor and indoor unit electrical assemblies, including
the wiring, are under HIGH VOLTAGE!!!
¾
Never open the outdoor or indoor units before turning off
ALL
Power sources!!!
¾
When turned off, the outdoor unit electrical assembly is still charged (400V)!!!
¾
DC capacitors are discharging for about 3 Minute after power is OFF.
¾
Touching the electrical before discharging may cause an electrical shock!!!
¾
For safe handling of the electrical assembly please refer to section
13.1
above.
Содержание DLF 18 DCI
Страница 11: ...4 2 OUTLINE DIMENSIONS SM DLF 1 A 1 GB 4 2 Outdoor Unit YBDE 018 024...
Страница 31: ...12 3 CONTROL SYSTEM SM DLF 1 A 1 GB 12 2 2 Controller overview 12 2 2 1 Main Controller Indoor Unit DLF 18 24...
Страница 65: ...12 37 CONTROL SYSTEM SM DL A 1 GB 12 9 5 Remote Control RC 8 Reset Operation...
Страница 69: ...12 41 CONTROL SYSTEM SM DLF 1 A 1 GB 12 11 7 Segment Legend 7 7 segments lege end...
Страница 91: ...14 2 SM DLF 1 A 1 GB EXPLODED VIEWS AND SPARE PARTS LISTS 14 2 Indoor Unit DLF 18 DCI...
Страница 95: ...14 6 SM DLF 1 A 1 GB EXPLODED VIEWS AND SPARE PARTS LISTS 14 4 Indoor Unit DLF 24 DCI E F G D E D D E D...
Страница 96: ...14 7 EXPLODED VIEWS AND SPARE PARTS LISTS SM DLF 1 A 1 GB 14 5 Indoor Unit DLF 24 DCI...