Gree GMV-140WL/A-T User Manual

DC Inverter Multi VRF System User Manual
21
04_ Confirm
the quantity of
IDU
db
On
04
On
01~80
Blink
LED3 displays the quantity of indoor unit. Confirm
the number manually. If the number is not
consistent the display one, cut off power of IDU
and ODU and check whether communication
wire of IDU is correctly connected. After the
check, connect power and start debugging from
progress 01. If the number is then correct, press
main board’s SW7 button to confirm. Then the
display is as below:
db
On
04
On
OC
On
System has confirmed the quantity. 2s later, next
step starts.
05_ Detect
ODU’s internal
communication
and capacity
ratio
db
On
05
On
C2
On
Communication between master ODU and driver
has error. Check the communication connection
of ODU’s main board and drive board. When the
error is eliminated, start next step. If power is off
during troubleshooting, then restart debugging from
progress 01 after power is on.
db
On
05
On
OC
On
Communication of master ODU and driver is
normal. Unit will display as in the left for 2s and
detect the capacity ratio of IDU and ODU. If the
ratio is within range, than next step will start 2s
later. If the ratio is out of range, unit will display as
below:
db
On
05
On
CH
On
Rated capacity ratio of IDU is too high. Change the
combination way of IDU and ODU to make the
ratio within range. And restart debugging from
progress 01.
db
On
05
On
CL
On
Rated capacity ratio of IDU is too low. Change the
combination way of IDU and ODU to make the
ratio within range. And restart debugging from
progress 01.
06_ Detect
outdoor
components
db
On
06
On
error
code
On
Outdoor component’s error. LED3 will display the
related error code. After errors are eliminated,
system will start next step automatically. If power is
off during troubleshooting, then restart debugging
from progress 01 after power is on.
db
On
06
On
OC
On
System detects no error on outdoor component.
10s later, next step starts.
07_ Detect
indoor
components
db
On
07
On
XXXX/
Error
code
On
System detects error on indoor components. XXXX
means the project code of IDU with error. 3s later,
related error code will be showed. For instance, if
no.1 IDU has d6 and d7 errors, then the LED3
digital tube will show circularly
00,01,d5,d6,07,92,d6,d7 every 2s. After errors are
eliminated, system will start next step
automatically. If power is off during troubleshooting,
then restart debugging from progress 01 after
power is on.
db
On
07
On
OC
On
No error on components of IDU. 2s later, next step
starts.
08_ Confirm
preheated
compressor
db
On
08
On
UO
On
Preheat time for compressor is less than 8 hours.
Display will be as in the left until the preheat time
reaches 8 hours. Press main board’s SW7 button
to confirm manually that the preheat time has
reached 8 hours. Then start next step. (Note:
Compressor may get damaged if it is started
without 8 hours of preheat time)
db
On
08
On
OC
On
Compressor has been preheated for 8 hours. 2s
later, next step starts.
09_
Refrigerant
judgments
before startup
db
On
09
On
U4
On
System is lack of refrigerant and display will be as
in the left. Please cut off power of IDU and ODU
and check if there is leakage on pipeline. Solve
the leakage problem and complement refrigerant
into the unit. Then connect power and restart
debugging from progress 01. (Note: Before
re-charging refrigerant, unit must be power off in
case system starts progress 10 automatically.)

Gree GMV-140WL/A-T Specifications

General

Brand	Gree
Model	GMV-140WL/A-T
Category	Air Conditioner
Language	English