TROUBLESHOOTING
SM YUDE 2-A.1 GB
12-1
12.
TROUBLESHOOTING
12.1
ELECTRICAL & CONTROL TROUBLESHOOTING
12.1.1
Precautions before Performing Inspection or Repair
Be cautious during installation and maintenance. Do operation following the regulations to
avoid electric shock and casualty or even death due to drop from high attitude.
*
Static maintenance
is the maintenance during de-energization of the air conditioner.
For static maintenance, make sure that the unit is de-energized and the plug is disconnected.
*
Dynamic maintenance
is the maintenance during energization of the unit. Before dynamic
maintenance, check the electricity and ensure that there is ground wire on the site. Check if
there is electricity on the housing and connection copper pipe of the air conditioner with
voltage tester. After ensure insulation place and the safety, the maintenance can be performed.
Take sufficient care to avoid directly touching any of the circuit parts without first turning off the
power. At time such as when the circuit board is to be replaced, place the circuit board
assembly in a vertical position. Normally, diagnose troubles according to the trouble diagnosis
procedure as described below.(Refer to the check points in servicing written on the wiring
diagrams attached to the indoor/outdoor units.)
Precautions when inspecting the control section of the outdoor unit
:
A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter).Therefore,
if the power supply is turned off, charge(charging voltage DC280V to 380V)remains and
discharging takes a lot of time. After turning off the power source, if touching the charging
section before discharging, an electrical shock may be caused.
The outdoor unit can not be started up until the unit is de-energized for 20min
12.1.2
Confirmation
12.1.2.1 Confirmation of Power Supply Confirm that the power breaker operates(ON)
normally;
12.1.2.2 Confirmation of Power Voltage Confirm that power voltage is AC220~240V +/-
10% for single phase and AC380-415V+/-10% for three phase. If power
voltage is not in this range, the unit may not operate normally.
Содержание YUDE024
Страница 21: ...PERFORMANCE DATA SM YUDE 2 A 1 GB 5 1 5 PERFORMANCE DATA...
Страница 25: ...WIRING DIAGRAMS SM YUDE 2 A 1 GB 8 1 8 WIRING DIAGRAMS 8 1 AWAU YUDE024 H11 AWAU YUDE030 H11 M P P...
Страница 26: ...WIRING DIAGRAMS 8 2 SM YUDE 2 A 1 GB 8 2 AWAU YUDE036 H11...
Страница 27: ...WIRING DIAGRAMS SM YUDE 2 A 1 GB 8 3 8 3 AWAU YUDE036 H13 TBD...
Страница 28: ...WIRING DIAGRAMS 8 4 SM YUDE 2 A 1 GB 8 4 AWSI CADE024 030 036 N11 For model 30 42...
Страница 30: ...WIRING DIAGRAMS 8 6 SM YUDE 2 A 1 GB 8 6 AWSI DBD024 030 036 N11...
Страница 54: ...EXPLODED VIEWS AND PARE PARTS LISTS 13 4 SM YUDE 2 A 1 GB 13 4 Exploded view of Indoor unit AWSI DBDE036 N11...
Страница 62: ...EXPLODED VIEWS AND PARE PARTS LISTS 13 12 SM YUDE 2 A 1 GB 13 12 Exploded view of Indoor unit AWSI FADE024 N11...
Страница 70: ...EXPLODED VIEWS AND PARE PARTS LISTS 13 20 SM YUDE 2 A 1 GB 13 20 Exploded view of Outdoor unit AWAU YUDE036 H11...
Страница 72: ...APPENDIX SM YUDE 2 A 1 GB 14 1 14 APPENDIX APPENDIX...