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DC INVERTER U-MATCH AIR CONDITIONERS CONTROL
2 MAIN LOGIC
2.1 Cooling
After the cooling command is sent out, the indoor fan will run at high speed for 5 seconds before it is put
into operation according to the setting. Then, it is started to calculate the system load demand value. If
the load is 0, the other loads except the indoor fan will not be put into operation (The water pump will run
according to the pump control logic behind). If the load is >0, the EXV will be firstly opened to step X; then
the indoor fan is started. After 30 seconds, the compressor is started at initial frequency 40Hz and will be
maintained for 3 minutes. After that, the compressor, EXV and outdoor fan will adjust according to logic.
Compressor
Outdoor fan
Cooling mode
3 min.
Send out switch-off command
Acc. to
control logic
Acc. to
control logic
Capacity demand >0
480 steps
60
sec.
150 sec.
150s after the compressor
is stopped
Firstly switch off to step 0
and then switch off step 60.
Send out cooling
command
Indoor fan
(cooling)
4-way valve
30 sec.
3 sec.
X steps
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 ...