Gree GMV-450WM/B-X Service Manual

GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
106
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
Blinking
The system is assigning
addresses.
db
On
02
On
L7
Blinking
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
Blinking
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
Blinking
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
communicati
on detection
for basic
modules
db
On
05
On
C2
On
The system detects
communication failure
between master unit and
inverter compressor
driver.
db
On
05
On
C3
On
The system detects
communication failure
between master unit and
inverter fan driver.
db
On
05
On
CH
On
The rated capacity ratio
is over-high between
IDUs and ODUs.
db
On
05
On
CL
On
The rated capacity ratio
is over-low between

Gree GMV-450WM/B-X Specifications

General

Brand	Gree
Model	GMV-450WM/B-X
Category	Air Conditioner
Language	English