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GREE GMV5 HR HEAT RECOVERY UNITS
196
2.2.4.17
“b1” Outdoor ambient temperature sensor error
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will display
Error judgment condition and method:
Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge
the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 30 seconds
continuously, report the error.
Possible reason:
■Poor contact between temperature sensor and terminal in mainboard interface
■Temperature sensor is abnormal
■Detecting circuit is abnormal
Troubleshooting:
2.2.4.18
“b2” Defrost temperature sensor 1 error
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will display
Error judgment condition and method:
Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge
the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 30 seconds
continuously, report the error.
Possible reason:
■Poor contact between temperature sensor and terminal in mainboard interface
■Temperature sensor is abnormal
■Detecting circuit is abnormal
Содержание GC201808-III
Страница 36: ...GREE GMV5 HR HEAT RECOVERY UNITS 32 Circuit diagram of GMV Q144WM B1 F U Circuit diagram of GMV Q168WM B1 F U ...
Страница 87: ...GREE GMV5 HR HEAT RECOVERY UNITS 83 1 External Connection for Individual Units ...
Страница 92: ...GREE GMV5 HR HEAT RECOVERY UNITS 88 ...
Страница 227: ...GREE GMV5 HR HEAT RECOVERY UNITS 223 Troubleshooting ...
Страница 286: ...GREE GMV5 HR HEAT RECOVERY UNITS 282 Troubleshooting ...
Страница 314: ...GREE GMV5 HR HEAT RECOVERY UNITS 310 4 Loosen the screws on the compressor drive as shown in the figure below ...
Страница 362: ...JF00302879 ...