Gree GMV5 Series - Page 134

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
131
13_
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No meaning.
14_
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No meaning.
15_Cooling
operation by
manual
perfusion
db
On
15
On
AC
On
The system is in cooling-mode
commissioning operation (the
system automatically selects the
commissioning operation mode
without needing manual settings).
db
On
15
On
Corres
pondin
g fault
code
On
A fault occurs on the
cooling-mode commissioning
operation.
db
On
15
On
J0
On
A fault occurs on other modules
during the cooling-mode
commissioning operation.
db
On
15
On
U9
On
A fault occurs on ODU pipes or
valves.
db
On
15
On
XXXX/
U8
On
The system detects pipe failure of
IDU. "XXXX" indicates the project
number of the faulty IDU. The
fault code "U8" is displayed after
three seconds. For example, if a
U8 fault occurs on IDU 100, LED3
will circularly display "01", "00"
(two seconds later), and "U8" (two
seconds later).
16_Heating
operation by
manual
perfusion
db
On
16
On
AH
On
The system is in heating-mode
commissioning operation (the
system automatically selects the
commissioning operation mode
without needing manual settings).
db
On
16
On
Corres
pondin
g fault
code
On
A fault occurs on the
heating-mode commissioning
operation.
db
On
16
On
J0
On
A fault occurs on other modules
during the heating-mode
commissioning operation.
db
On
16
On
U9
On
A fault occurs on ODU pipes or
valves.
db
On
16
On
XXXX/
U8
On
The system detects pipe failure of
IDU. "XXXX" indicates the project
number of the faulty IDU. The
fault code "U8" is displayed after
three seconds. For example, if a
U8 fault occurs on IDU 100, LED3
will circularly display "01", "00"
(two seconds later), and "U8" (two
seconds later).
17_Commissio
ning completion
status
01-04
On
OF
On
OF
On
The unit has completed
commissioning and in standby
status. LED1 displays the module
address; LED2 and LED3 display
"OF".
NOTE
：
In commissioning status, press and hold "SW3" and "SW4" simultaneously for more than
five seconds to enter the no-wired-controller commissioning mode. In this mode, the system does not
detect the communication status between the wired controller and IDU.
2.3.3.2 Commissioning Operation Mode
The GMV5 VRF provides two commissioning methods. One is to perform commissioning through