Gree GMV-36WL/A-T(U), Manual

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DC Inverter Side Discharge VRF
Ⅱ
for North America
86
8.2 Debugging of unit
Debugging procedure for test run, display instruction for indicator on main board of
outdoor unit and operation method are as below:
Description of each stage of debugging progress
——
Debugging
code
Progress code Status code
Code meaning and
operation method
Progress
LED1 LED2 LED3
Code
Display
status
Code
Display
status
Code
Display
status
01_ Set master
unit
db On 01 On AO On System is not debugged.
db On 01 On OC On
Hold main board’s SW7
button for 5s
to start
debugging. Main board will
display as said in the left. 2s
later, next step starts.
02_ Allocate
addresses
db On 02 On Ad Blink
System is allocating
addresses. 10s later, display
as below:
db On 02 On L7 Blink
No master indoor unit.
Display will be on for 1min,
during which master IDU can
be set manually. If not,
system will set the unit with
minimum IP address as the
master IDU.
db On 02 On OC On
Allocation is finished. 2s
later, next step starts.
03_ Confirm
the quantity of
ODU
db On 03 On 01 Blink
System is confirming. 1s
later, next step starts.
db On 03 On OC On
System finishes
confirmation. 2s later, next
step starts.
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.