Gree Ultra Heat GMV-V72W/A-F, Service Manual

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Ultra Heat GMV VRF Technical Service Manual COMMISSIONING OPERATION
81
PM Middle pressure 0.01MPa
PH High pressure 0.01MPa
If LED2 shows 2 and LED3 shows 80, it means high
pressure is 2.80MPa.
N1 Online ODU quantity /
N9 Online IDU quantity /
NOTE: On the master unit, press "SW5" to return to the upper level if there are two levels of menu.
And press "SW5" long to cancel the setting function status.
If no button operations are performed on the master unit for one minute, the function setting
automatically quits and the unit do not restore the current status.
3.4 Basic Operations for Engineering Commissioning
3.4.1 Basic operations
Basic Operations Operation Method Remark
Starting engineering
commissioning
Press and hold "SW4" on the master unit for more
than six seconds.
——
Quitting engineering
commissioning
In engineering commissioning status, press and
hold "SW5" for more than six seconds on the
master unit to quit commissioning.
——
Pause-continue
engineering
commissioning
After the step 5 of engineering commissioning
status, press "SW5" on the master unit to return to
the previous commissioning phase of the current
commissioning phase, and follow steps.
This function is valid after step 5. For
example, if receiving a pause-continue
engineering commissioning signal during
the process of step 7, the system will
restore the completion phase of step 6.
3.4.2 Restoring factory settings
Restoring Factory Settings Remark
Restoring setting 1 (A1) All factory settings of the ODU are restored and the unit waits for re-commissioning.
Restoring setting 2 (A2)
Re-commissioning is not required. The number of outdoor and IDUs is memorized.
Addresses of IDUs are all cleared.
Step 1: Open the commissioning window of the master unit panel.
Step 2: Power on the entire unit.
Step 3: Press "SW4" on the master unit at least 6 seconds to enter the to-be-selected status of
function settings. By default, the master unit is displayed as follows:
LED1 LED2 LED3
Function Code Display Mode Confirmation Display Mode Current Data Display Mode
A0 Blinking / / / /
Press "SW1" on the master unit to select corresponding functions, including:
LED1 LED2 LED3
Function Code Display Mode Confirmation Display Mode Current Data Display Mode
A0 Blinking / / / /
A1 Blinking / / / /
A2 Blinking / / / /
Step 4: after selecting the functions to be set, press "SW4" to confirm entering function settings. The
master unit is displayed as follows: