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DC INVERTER U-MATCH AIR CONDITION MAINTENANCE
121
Tripping
◆
Tripping
If the switching
capacity can meet
the requirements?
Tripped once
energized
Tripped when
the compressor
is started?
Install the electric
switch according to the
capacity requirements
as specified in
operating instructions.
Check PFC board. Cut off the
power for 1 minute or reduce
the busbar voltage to 36V or
lower. Then, remove the
connection cable on PFC board
and use multimeter to measure
if P-N, or P-L1_2, or L1_2-N on
PFC board is short circuited.
Leakage current
is too high.
Please check for
moisture, or
replace the filter.
Short circuited?
The PFC module is damaged.
Replace the PFC module and check
if AC contactor is stuck. Meanwhile,
ensure that P-N is short circuited.
The possible reasons causing this
trouble include:
①
The screws fixing
the module are not correctly
tightened;
②
The AC contactor on
AC side in parallel to the recharging
resistor is stuck, and the transient
recharging current upon
energization is too high;
③
The input
voltage is too low; or
④
The cable
connection is wrong.
Check driver board. Cut off the
power for 1 minute or reduce
the busbar voltage to 36V or
lower. Then, remove the
connection cable on driver
board and use multimeter to
measure if P-N, or P-U, or P-V,
or P-W, or U-N, or V-N, or W-N
on driver board is short
circuited.
Short circuited?
If the front-end
AC contactor is
stuck?
If the insulation
on PFC inductor
winding is
damaged?
The system is
abnormal. Please check
the compressor
connections or winding
for short circuiting or
other troubles.
The AC contactor
is damaged.
Please replace
with a same type
of contactor.
Replace PFC
inductor
Check if the
cable
connection is
wrong
Record and
feed back
Leakage current
is too high.
Please check for
moisture, or
replace the filter.
PFC ON?
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
No
No
No
The IPM module is damaged.
Replace the driver board. The
possible reasons causing this
trouble include:
①
The screws
fixing the module are not
correctly tightened;
②
The
load is severely overloaded; or
③
The interference causes
short circuiting inside IPM
module.
No
Содержание ASC-18A
Страница 2: ...last actualization 2011 ...
Страница 27: ...CONTROL ...
Страница 28: ...DC INVERTER U MATCH AIR CONDITIONERS CONTROL CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Dry Operation ...
Страница 47: ...DC INVERTER U MATCH AIR CONDITIONERS CONTROL 5 2 4 Dimensions ...
Страница 52: ...INSTALLATION ...
Страница 91: ...Wiring diagram ASGE 18AI main board WZD35B 30224042 ...
Страница 94: ...DC INVERTER U MATCH AIR CONDITIONERS INSTALLATION ASGE 36AI ASD 36AI ASGE 36AI ASF 36AI ASGE 36AI ASC 36AI ...
Страница 102: ...96 MAINTENANCE ...
Страница 113: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 107 Malfunction display E3 Compressor Low Pressure Protection ...
Страница 115: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 109 Malfunction display E5 Compressor Overheat ...
Страница 116: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 110 Malfunction display E6 Communications Failure ...
Страница 134: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 128 IPM module protection ...
Страница 135: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 129 DC busbar overvoltage protection ...
Страница 136: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 130 DC busbar undervoltage protection ...
Страница 137: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 131 Abnormal noise from PFC inductor ...
Страница 138: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 132 Radiator overheat protection ...
Страница 139: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 133 Tripping ...
Страница 143: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 137 Voltage protection of DC bus ...
Страница 155: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE Model ASGE 36AI ...
Страница 156: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE 141 Model ASGE 36AI 3 ASGE 42AI 3 Model ASGE 36AI 3 S ...
Страница 157: ...DC INVERTER U MATCH AIR CONDITION MAINTENANCE Model ASGE 42AI 3 S Model ASGE 36AI S ...
Страница 158: ...Wiring diagram ASD 18AI old units BATCH CODE 18267 and 18756 main board 30228204 ...
Страница 219: ......
Страница 220: ...PARTS GUIDE CASSETTE FLOOR CEILING DUCT UNITS OUTDOOR UNITS OUTDOOR AND INDOOR UNITS DC INVERTER SERIES ...
Страница 221: ...4 Maintenance Exploded View and Spare Parts List Outdoor Unit ASGE 18AI ...
Страница 223: ...Model ASGE 24AI old model ASGE 24AI S ...
Страница 228: ...Model ASGE 36AI ...
Страница 231: ...Model ASGE 36AI S ...
Страница 236: ...Model ASGE 36AI 3 S ...
Страница 238: ...Model ASGE 42AI 3 ...
Страница 241: ...Model ASGE 42AI 3 S 1 PHASE ...
Страница 244: ...Exploded View and Spare Parts List DUCT UNITS Indoor Unit ASD 18AI ...
Страница 246: ...Exploded View and Spare Parts List DUCT UNITS Indoor Unit ASD 24AI ASD 36AI ASD 36AI S ASD 42AI ASD 42AI ...
Страница 249: ...Exploded View and Spare Parts List CASSETTE UNITS Indoor Unit ASC 18AI ...
Страница 251: ...Exploded View and Spare Parts List CASSETTE UNITS Indoor Unit ASC 24AI ASC 36AI ASC 36AI S ASC 42AI ASC 42AI S ...
Страница 255: ...Exploded View and Spare Parts List FLOOR CEILING UNITS Indoor Unit ASF 18AI ...