GREE DC Inverter Side Discharge VRF Ⅱ for North America
89
Description of each stage of debugging progress
Code meaning and operation method
Debugging for cooling mode. If no malfunction occurs for
50min when compressor is running, then the system is
certified as normal. After shutting down the unit for 5s, the
system will enter normal standby status.
Malfunction occurs when debugging for cooling mode.
Debugging for heating mode. If no malfunction occurs for
50min when compressor is running, then the system is
certified as normal. After shutting down the unit for 5s, the
system will enter normal standby status.
Malfunction occurs when debugging for heating mode.
The entire unit has finished debugging and under standby-by
condition.
Debugging procedure for test run, display instruction for indicator on main board of outdoor unit and
operation method are as below
GMV-36WL/A-T(U)
、
GMV-48WL/A-T(U) GMV-60WL/A-T(U)
:
Description of each stage of debugging progress
Code meaning and operation method
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.
System is allocating addresses. 10s later,
display as below:
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.
Allocation is finished. 2s later, next step
starts.
03_ Confirm the
quantity of ODU
System is confirming. 1s later, next step
starts.
System finishes confirmation. 2s later,
next step starts.
04_ Confirm the
quantity of IDU
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:
System has confirmed the quantity. 2s
later, next step starts.