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GMV Heat Recovery DC Inverter VRF
(3) When debugging, the front panel of the outdoor unit must be completely closed, otherwise it
will affect the accuracy of debugging (as shown in the Fig. as below).
(4) Display instruction for each stage progress at the time of debugging:
—
Debugging code Progress code
LED1
Progress
Display
Code
db
db
01_ set up
master unit
db
db
db
02_ allocate
addresses
db
db
03_module
qunaity
confirmation
db
db
04_indoor
unit's quantity
confirmation
db
Instruction for each stage progress at the time of debugging
LED2
Display
Code
status
status
ON
01
ON
ON
01
ON
ON
01
ON
ON
01
ON
ON
02
ON
ON
02
ON
ON
03
ON
ON
03
ON
ON
04
ON
ON
04
ON
Fig.4.2.2
Status code
LED3
Display
Code
status
A0
ON
CC
ON
CF
ON
OC
ON
Ad
Flash
OC
ON
01~04
Flash
OC
ON
××/ The
quantity of
Flash
online indoor
units
OC
ON
57
Meaning
Undebugged status.
The system hasn't set master module.
It needs to reset it.
The system has set more than 2 master
modules. It needs to reset it.
Master module setting is succeeded. It
will automatically enter into the next
step.
The system is conducting the address
assignment.
Address assignment is succeeded. It
will automatically enter into the next
step.
LED3 displays the module quantity. It
needs to manually confirm the module
quantity.
Once the system module quantity is
confirmed, it will automatically enter
into the next step for judgment.
LED3 displays the quantity of online
indoor units.
Indoor unit's quantity inspection is
finished. Enter into the next step
automatically.
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