Gree GMV5 Series Service Manual page 109

6) The following table describes progress display of each phase during commissioning:
Commissioning
——
Progress
Code
db
db
01_Master
unit setting
detection
db
db
db
02_Unit
address
assignment
db
db
03_Basic
module
db
quantity
confirmation
for ODU
db
db
04_Indoor
unit quantity
confirmation
db
db
05_Internal
communicati
on detection
for basic
db
modules
db
db
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
Progress Description for Commissioning Phases
Code Progress Code
LED1 LED2
Display Display
Status Code Status
On 01
On 01
On 01
On 01
On 02
On 02
On 02
On 03
On 03
On 04
On 04
On 05
On 05
On 05
On 05
Status Code
LED3
Code
On A0
On CC
On CF
On OC
On Ad
On L7
On OC
On 01-04
On OC
On 01-80
On OC
On C2
On C3
On CH
On CL
106
Display
Status Meaning
The system is in
non-commissioning
On status.
The system does not set
any master unit, and a
master unit should be
On set.
The system sets more
than two master units,
and a master unit should
On be set again.
The system successfully
sets a master unit and
automatically enters the
On next step.
The system is assigning
Blinking addresses.
There is not any master
IDU, and a master IDU
should be set through the
commissioning software.
If no master IDU is set
within one minute, the
system will automatically
Blinking set one.
The system successfully
assigns addresses and
automatically enters the
On next step.
LED3 displays the
module quantity, which
should be manually
Blinking confirmed.
The system confirms the
module quantity and
automatically enters the
On next step.
LED3 displays the IDU
quantity, which should
Blinking be manually confirmed.
The system confirms the
IDU quantity and
automatically enters the
On next step.
The system detects
communication failure
between master unit and
inverter compressor
On driver.
The system detects
communication failure
between master unit and
On inverter fan driver.
The rated capacity ratio
is over-high between
On IDUs and ODUs.
The rated capacity ratio
On is over-low between