Gree GMV-120WM/B-F

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
129
(5) Before commissioning, make sure that appending refrigerants to pipes has finished completely
or for more than 70%.
(6) The following table describes progress display of each phase during commissioning:
Progress Description for Commissioning Phases
——
Commissioning Code
Progress Code
Status Code
Meaning
Progress
LED1
LED2
LED3
Code
Display
Status
Code
Display
Status
Code
Display
Status
01_Master unit
setting
detection
db
On
01
On
A0
On
The system is in
non-commissioning status.
db
On
01
On
CC
On
The system does not set any
master unit, and a master unit
should be set.
db
On
01
On
CF
On
The system sets more than two
master units, and a master unit
should be set again.
db
On
01
On
OC
On
The system successfully sets a
master unit and automatically
enters the next step.
02_Unit
address
assignment
db
On
02
On
Ad
Blinkin
g
The system is assigning
addresses.
db
On
02
On
L7
Blinkin
g
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 set one.
db
On
02
On
OC
On
The system successfully assigns
addresses and automatically
enters the next step.
03_Basic
module quantity
confirmation for
ODU
db
On
03
On
01-04
Blinkin
g
LED3 displays the module
quantity, which should be
manually confirmed.
db
On
03
On
OC
On
The system confirms the module
quantity and automatically enters
the next step.
04_Indoor unit
quantity
confirmation
db
On
04
On
01-80
Blinkin
g
LED3 displays the IDU quantity,
which should be manually
confirmed.
db
On
04
On
OC
On
The system confirms the IDU
quantity and automatically enters
the next step.
05_Internal
communication
detection for
basic modules
db
On
05
On
C2
On
The system detects
communication failure between
master unit and inverter
compressor driver.