GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
103
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
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 IDUs and
ODUs.
db
On
05
On
OC
On
The system completes
detection and
automatically enters
the next step.
06_Internal
component
detection for basic
modules
db
On
06
On
Corresponding
fault code
On
The system detects
component failure of
ODU.
db
On
06
On
OC
On
The system detects
that no ODU
component fails and
automatically enters
the next step.
07_Component
detection for IDU
db
On
07
On
XXXX/
Corresponding
fault code
On
The system detects
component failure of
IDU. "XXXX" indicates
the project number of
the faulty IDU. The
corresponding fault
code is displayed after
three seconds. For
example, if a d5 fault
occurs on IDU 100,
LED3 will circularly
display "01", "00" (two
seconds later), and
"d5" (two seconds
later).
db
On
07
On
OC
On
The system detects
that no IDU
component fails and
automatically enters
the next step.
08_Compressor
preheating
confirmation
db
On
08
On
U0
On
The system gives a
prompt if the
compressor
preheating period is
less than eight hours.
db
On
08
On
OC
On
The system detects
that the compressor
preheating period is
more than eight hours
and automatically
enters the next step.
