Parameters Reference Value For The Normal Operation Of Unit - Gree FGR25Pd/DNa-X Service Manual

——
Progress
Display Code
04_ Confirm the
quantity of IDU
05_ Detect ODU's
internal
communication
06/corresponding
06_ Detect
error code
outdoor
components
07/ corresponding
07_ Detect indoor error code
components
08_ Confirm
preheated
compressor
09_Confirm status
of valve of ODU
10_Debugging
completed status

1.3 Parameters reference value for the normal operation of unit

No. Debug item
1
System
parameters parameters
2
Duct type split Air conditioner Inverter Series
Description of each stage of debugging progress
Debugging Code
LED
Display
Code
Display
04/Cb
repeatedly
Display
04/oC
repeatedly
Display
05/C2
repeatedly
Display
05/oC
repeatedly
Display
repeatedly
Display
06/oC
repeatedly
Display
repeatedly
Display
07/oC
repeatedly
Display
08/U0
repeatedly
Display
08/oC
repeatedly
Display
09/U4
repeatedly
OFF On
Parameter name
Outdoor temperature
ODU
Compressor
discharge
temperature
Instruction for Code and Operating Method
It is not allowed to connect more than one indoor unit in the
system. Please check and debug again to confirm.
The quantity of IDU in the system has been confirmed.It will
enter into the next step.
Communication between master control and driving of ODU.
Please check if the
mainboard and driving board of ODU is correctly
connected, if it is, enter into the next step. If the ODU should be
powered off for the debugging, after re-energizing the unit,
please conduct debugging from the above 01 step.
The communication between master control and driving of ODU
are normal. After displaying for once, it will automatically enter
into the next step.
Error of components of ODU. Except "06", others will flickeringly
display corresponding error code. After eliminating all the
errors, it will automatically enter into the next step. If the ODU
should be powered off for the debugging, after re-energizing the
unit, please conduct debugging from the above 01 step.
No component of ODU is found in the system, it will enter into
the next step 10 seconds later.
Error of components of IDU are detected. For example, the IDU
displays d5 and d6 simultaneously, the nixie tube will repeatedly
display "07", "d5", "d6". After eliminating all the errors, it will
automatically enter into the next step. If the ODU should be
powered off for the debugging, after re-energizing the unit,
please conduct debugging from the above 01 step.
No component of IDU is found in the system, it will automatically
enter into the next step 5 seconds later.
Insufficiency preheating of compressor. The nixie tube will
display as the left until the preheating time for compressor has
reached 8 hours, then press SW3 can skip over the waiting
time, and automatically enter into the next step 2 seconds later.
(Note: if the preheating time for the compressor is less than 8
hours, there may be a risk for damage of compressor, please
conduct with care)
If the ODU is continuously energized for ≥8h, or the continous
8-hour energizing time in the last time till now is less than 2
hours (it requires clock chip), it means the preheating is
completed, the system will automatically enter into the next step
2 seconds later.
The system shuts down due to malfunction. The error module
nixie tube repeatedly display "09" and "U6", other module nixie
tubes repeatedly display "09" and "J0". If erroe occurs, please
check if the valve is opened, and at the same time check if the
connecting pipes between different modules are correctly
connected.
If all the modules shut down, then all the module nixie tube will
display "09" and "oC" for once.
The whole unit has gone through the debugging, the system is in
stand-by status.
Unit
℃
●When compressor starts, discharge temp in
cooling mode is within 70~105℃ and at least
10℃ higher than the high pressure saturation
temp;
℃
●As for temp in heating mode, it is within 65~90℃
and at least 10℃ higher than the high pressure
saturation temp.
82
communication wire
Reference
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between