Gree GMV-450WM/B-X Service Manual

GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
107
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_Compon
ent 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_Compres
sor
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.
09_Pre-start
up 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-start
up 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
commissioni
ng 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

Gree GMV-450WM/B-X Specifications

General

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