Gree GMVVQ1015WM/C-X, Service Manual

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Gree GMV6 HR DC Inverter VRF Units Service Manual
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Master unit setting (SA8):
Master and Slave
Unit Setting
DIP Switch (Two Digits)
Position 1 2
Master unit ON OFF
Slave unit OFF OFF
Step 4: Power on the indoor and outdoor units.
Power on all indoor and outdoor units. In this case, all modules of the outdoor unit indicate that the
unit is in "Not commissioning" status.
L E D 3
Step 5: Set the static pressure for the outdoor unit.
When the indoor and outdoor units are powered on, and the unit is to be commissioned, set the
static pressure mode for the unit according to the design requirements for the outdoor static pressure of
the project. Five static pressure modes are available: The factory default static pressure mode 0
represents 0 Pa outdoor static pressure, mode 1 represents 30 Pa, mode 2 represents 50 Pa, mode 3
represents 80 Pa, and mode 4 represents 110 Pa.
Each basic module can be set separately or uniformly by the master module. When basic modules
are set separately, the static pressure value of each module can be different; when the modules are set
uniformly, the static pressure value of each module remains the same. When a static pressure value is
set in either of the two modes, the previous mode setting limit is automatically released. The static
pressure value of each basic module is subject to the last received set value. The setting procedure is as
follows:
When the unit is to be commissioned, press and hold the SW1 up button on the master unit for over
5 seconds. The system enters the function setting status. The master unit displays "A7 (blinking) 00
(blinking) 00 (blinking)" by default, and other modules display current statuses.
Then, press the SW1 up button and the SW2 down button on the master unit to select the
corresponding function/parameter till "A7 (blinking) 00 (blinking) 00 (blinking)" is displayed, indicating
outdoor static pressure setting. Press the SW3 confirm button to enter the function setting. The master
unit displays as follows, and other basic modules display in normal working mode:
LED1 LED2 LED3
Function code
Display status
Current process Display status Current status Display status
1G
On
01 Blinks OC Blinks
Press the SW1 up button and the SW2 down button to select the corresponding basic module: 00
means all modules, 01~04 means module 1 to module 4.