Gree GMV6 DC Inverter VRF Units Service Manual
Press the SW4 back button on the master module to return to the previous process or exit the function
setting status.
The default status is 00, that is, no silence.
4.2.3.4 A8 After-Sales Vacuum Pumping Mode
Introduction:
This function is used to ensure the vacuum of the entire system during maintenance and to avoid
dead pipeline zones. When this function is set, both the expansion valve and the solenoid valve of the
unit will open.
Setting steps:
Step 1:
Enter A8 after-sales vacuum pumping mode, and ensure that the master module displays
as follows:
LED1 LED2 LED3
A8 On 00 Blinks OC Blinks
The system enters the to-be-confirmed status of vacuum pumping mode.
Step 2:
Press the SW3 button. The system enters the confirmed status of vacuum pumping mode
and all modules display as follows:
LED1 LED2 LED3
Function code Display status Current process Display status Current status Display status
A8 On 00 On OC On
At this time, the expansion valves of all indoor and outdoor units are open, and the entire system
cannot be started.
When you press the SW4 back button on the master unit for over 5 seconds or the vacuum pumping
status remains for 24 hours, the entire system exits the status.
4.2.3.5 n0 Auto Energy Saving
Introduction:
This function sets the user-required energy saving mode. The default mode is capability priority
control.
After energy saving mode is set, the system capability will deteriorate.
Code Function Name
01 Capability priority control (default setting)
02 Energy saving priority control
Setting steps:
Step 1:
Enter n0 system energy saving operation, and ensure that the master unit displays as follows:
LED1 LED2 LED3
Function code Display status
Display status Current status Display status
n0 On 01 Blinks OC Blinks
Step 2:
Press the SW1 up button and the SW2 down button to select the corresponding mode.
To Next Page
Loading...
