Function Setting Operations - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual

If above function settings are incorrect, unit will run abnormal and compressor may even be damaged.

3.3 Function Setting Operations

Step 1: Open the commissioning window of the master unit panel.
Step 2: Power on the entire unit.
Step 3: Press "SW1" on the master unit at least 2 seconds to enter the to-be-selected status of
function settings. By default, the master unit is displayed as follows:
LED1
Function Code Display Mode
CU
Press "SW1" on the master unit again, the master unit is displayed as follows:
LED1
Function Code Display Mode
DI
Step 4: When ―CU‖ function displays, press "SW4" on the master unit, then the master unit is
displayed as follows:
LED1
Function Code Display Mode
Ft
Then users can select corresponding functions by pressing "SW1" on the master unit, including:
LED1
Function Code Display Mode
Ft
A8
A2
A3
Step 5: after selecting the functions to be set, press "SW4" to confirm entering function settings. The
master unit is displayed as follows:
LED1
Function Code Display Mode
Ft
A8
A2
A3
Confirmation
Blinking /
Confirmation
Blinking /
Confirmation
Blinking /
Confirmation
Blinking /
Blinking /
Blinking /
Blinking /
Confirmation
On /
On /
On /
On /
LED2
Display Mode
/
LED2
Display Mode
/
LED2
Display Mode
/
LED2
Display Mode
/
/
/
/
LED2
Display Mode
/
/
/
/
79
COMMISSIONING OPERATION
LED3
Current Data Display Mode
/
LED3
Current Data Display Mode
/
LED3
Current Data Display Mode
OF
LED3
Current Data Display Mode
OF
OF
OF
OF
LED3
Current Data Display Mode
OF Blinking
OF Blinking
OF Blinking
OF Blinking
/
/
On
On
On
On
On