GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
104
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
09_Pre-startup
refrigerant detection
db
On
09
On
U4
On
The system detects
insufficient refrigerants
and stops to balance
the pressure lower
than 0.3 MPa.
db
On
09
On
OC
On
The system detects
that refrigerants are
normal and
automatically enters
the next step.
10_Pre-startup
ODU valve status
detection
db
On
10
On
ON
On
Outdoor unit valves
are being opened.
db
On
10
On
U6
On
Outdoor unit valves
have not been
completely opened.
db
On
10
On
OC
On
Outdoor unit valves
have been properly
opened.
11_Manually
calculated
refrigerant perfusion
status
db
On
11
On
AE
On
The refrigerant
perfusion status is
manually calculated
(appended
refrigerants must be
accurately calculated).
12_Unit
commissioning
startup confirmation
db
On
12
On
AP
Blinking
The system waits for a
unit commissioning
startup command.
db
On
12
On
AE
On
The unit is set to
manually-calculated
refrigerant perfusion
commissioning
operation status.
13_
—
—
——
—
—
——
——
——
No meaning.
14_
—
—
——
—
—
——
——
——
No meaning.
15_Cooling
operation by
manual perfusion
db
On
15
On
AC
On
The system is in
cooling-mode
commissioning
operation (the system
automatically selects
the commissioning
operation mode
without needing
manual settings).
db
On
15
On
Corresponding
fault code
On
A fault occurs on the
cooling-mode
commissioning
operation.
db
On
15
On
J0
On
A fault occurs on other
modules during the
cooling-mode
commissioning
operation.
db
On
15
On
U9
On
A fault occurs on ODU
