Gree GMV-120WM/B-F User Manual

GMV DC Inverter VRF
48
Description of each stage of debugging progress
——
Debugging code
Progress code
Status code
Meaning
progress
LED1
LED2
LED3
Code
Display
status
code
Display
status
Code
Display
status
07_Detect indoor
components
db
light
07
light
XXXX
/Error
code
light
System detects error in indoor
components. XXXX is the project no. of
the faulted IDU. 3s later, relevant error
code is displayed. For example, IDU no.
100 has d5 error, then LED3 displays like
this: 01 (2s later) 00 (2s later) d5, and
repeat again.
db
light
07
light
OC
light
No error in indoor components. Start next
progress.
08_Confirm
preheated
compressor
db
light
08
light
U0
light
Preheat time for compressor is less than
8h.
db
light
08
light
OC
light
Preheat time for compressor is 8h. Start
next progress.
09_Refrigerant
judgments
before startup
db
light
09
light
U4
light
System refrigerant is not enough. System
downtime equilibrium pressure is lower
than 0.3MPa (4-2/5psig).
db
light
09
light
OC
light
System refrigerant is normal. Start next
progress.
10_Status
judgments of
outdoor valves
before startup
db
light
10
light
ON
light
Outdoor valves are being turned on.
db
light
10
light
U6
light
Outdoor valves are not fully turned on.
db
light
10
light
OC
light
Outdoor valves are turned on normally.
11_Calculate
refrigerant
quantity
manually
db
light
11
light
AE
light
Calculate the refrigerant quantity
manually and confirm the perfusion status
of refrigerant (the quantity of refrigerant
added into the system must be recorded
accurately).
12_Confirm
debugging
startup
db
light
12
light
AP
blink
Ready for units to start debugging.
db
light
12
light
AE
light
Manual calculation of refrigerant quantity
is set up.
13_
——
——
——
——
——
——
no meaning.
14_
——
——
——
——
——
——
no meaning.
15_Cooling
debugging
db
light
15
light
AC
light
Debugging is enabled in cooling mode
(debugging mode, auto-selected by
system).
db
light
15
light
Error
code
light
Error occurs during debugging in cooling
mode.
db
light
15
light
J0
light
Error of other modules occurs during
debugging in cooling mode.
db
light
15
light
U9
light
Outdoor pipeline and valves are not
normal.
db
light
15
light
XXXX
/U8
light
System detects error in indoor pipeline.
XXXX is the project no. of the faulted IDU.
3s later, error code U8 is displayed. For
example, IDU no. 100 has U8 error, then
LED3 displays like this: 01 (2s later) 00
(2s later) U8, and repeat again.

Gree GMV-120WM/B-F Specifications

General

Brand	Gree
Model	GMV-120WM/B-F
Category	Inverter
Language	English