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DC INVERTER U-MATCH AIR CONDITION MAINTENANCE
117
◆
DC busbar overvoltage protection
E5 displayed
on wired
controller
(overcurrent
protection)
Monitor display
Mainboard indicator
Bright Bright
Bright Bright
Blink Bright
DC busbar
overvoltage
protection
If the input voltage is
within working range
(185
~
264VAC)?
If the voltage of power grid is
too high, please immediately
cut off the power and never
start the unit. Otherwise, it
might damage the unit or cause
fire!
Does this occur when
the compressor is
running?
Does this occur
repeatedly in 1 hour?
Does this occur when
the compressor
frequency is
reduced?
PFC board abnormal.
Please check if the
resistor R6, R3 and R9 in
voltage sampling circuit
on PFC board is
abnormal, or replace
PFC board.
Caused by interference.
Please check the cable
routing or determine the
source of interference,
while taking
anti-interference
measures.
Caused when the
compressor is
decelerating. If this
occurs frequently, please
check if the compressor
is abnormal.
PFC board abnormal.
Please check if the
resistor R6, R3 and R9 in
voltage sampling circuit
on PFC board is
abnormal, or replace
PFC board.
Record and feed back
No
Yes
No
No
Yes
Yes
Yes
No
Summary of Contents for ASC-18A
Page 2: ...last actualization 2011 ...
Page 27: ...CONTROL ...
Page 47: ...DC INVERTER U MATCH AIR CONDITIONERS CONTROL 5 2 4 Dimensions ...
Page 52: ...INSTALLATION ...
Page 91: ...Wiring diagram ASGE 18AI main board WZD35B 30224042 ...
Page 102: ...96 MAINTENANCE ...
Page 115: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 109 Malfunction display E5 Compressor Overheat ...
Page 134: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 128 IPM module protection ...
Page 135: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 129 DC busbar overvoltage protection ...
Page 136: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 130 DC busbar undervoltage protection ...
Page 137: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 131 Abnormal noise from PFC inductor ...
Page 138: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 132 Radiator overheat protection ...
Page 139: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 133 Tripping ...
Page 143: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 137 Voltage protection of DC bus ...
Page 155: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE Model ASGE 36AI ...
Page 157: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE Model ASGE 42AI 3 S Model ASGE 36AI S ...
Page 158: ...Wiring diagram ASD 18AI old units BATCH CODE 18267 and 18756 main board 30228204 ...
Page 219: ......
Page 221: ...4 Maintenance Exploded View and Spare Parts List Outdoor Unit ASGE 18AI ...
Page 223: ...Model ASGE 24AI old model ASGE 24AI S ...
Page 228: ...Model ASGE 36AI ...
Page 231: ...Model ASGE 36AI S ...
Page 236: ...Model ASGE 36AI 3 S ...
Page 238: ...Model ASGE 42AI 3 ...
Page 241: ...Model ASGE 42AI 3 S 1 PHASE ...
Page 244: ...Exploded View and Spare Parts List DUCT UNITS Indoor Unit ASD 18AI ...
Page 249: ...Exploded View and Spare Parts List CASSETTE UNITS Indoor Unit ASC 18AI ...
Page 255: ...Exploded View and Spare Parts List FLOOR CEILING UNITS Indoor Unit ASF 18AI ...