DC Inverter Multi VRF System
24
Description of each stage of debugging progress
—
Debugging code
Code meaning and operation method
Progress
LED
Code
Display status
12_ Confirm
debugging startup
12/AP
Display
circularly
Ready for units to start debugging. Press main board’s
SW3 button to confirm startup of debugging. 2s later,
main board will display as below.
12/AE
Display
circularly
Startup is confirmed. After displaying for 2s, system will
choose “15_Cooling debugging” or “16_Heating
debugging” according to ambient temperature. If the
project requests to add refrigerant but it is not
complemented before debugging, then refrigerant can be
added in this process through the L-VALVE.
15_ Cooling
debugging
15/AC
Display
circularly
Debugging for cooling mode. If no malfunction occurs for
50min when compressor is running, then the system is
certified as normal. After shutting down the unit for 5s,
the system will enter normal standby status.
15/error code
Display
circularly
Malfunction occurs when debugging for cooling mode.
16_ Heating
debugging(For heat
pump units only)
16/AH
Display
circularly
Debugging for heating mode. If no malfunction occurs for
50min when compressor is running, then the system is
certified as normal. After shutting down the unit for 5s,
the system will enter normal standby status.
16/error code
Display
circularly
Malfunction occurs when debugging for heating mode.
17_ Debugging
finished
oF
ON
The entire unit has finished debugging and under
standby-by condition.
Содержание GMV-36WL/C-T
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