Gree GMV5 Series Service Manual page 102

4.1 Basic Operations
Basic Operations
Starting
engineering
commissioning
Selecting
no-wired-controller
commissioning
mode
Quitting
engineering
commissioning
Pausing
engineering
commissioning
Continuing
engineering
commissioning
4.2 Restoring Factory Settings
Restoring
Factory Setting Method
Settings
Press and hold
"SW8" on the
Restoring master unit for more
setting 1 than 10 seconds.
Press and hold
"SW3" and "SW8"
on the master unit
Restoring for more than 10
setting 2 seconds.
Press and hold
"SW5" and "SW8"
on the master unit
Restoring for more than 10
setting 3 seconds.
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
Operation Method
Press and hold "SW7" on the
master unit for more than five
seconds.
Press "SW4" and "SW5"
simultaneously in any
commissioning progress after the
unit enters the commissioning
status.
In engineering commissioning
status, press and hold "SW7" for
more than five seconds on the
master unit to quit commissioning.
In engineering commissioning
status, press "SW6" on the master
unit to retain the previous
commissioning completion phase of
the current commissioning phase.
In engineering commissioning
pause status, press "SW6" on the
master unit to continue engineering
commissioning.
All LEDs blink for
three seconds.
All LEDs blink for
five seconds.
All LEDs blink for
seven seconds.
In this mode, the system does not
detect the communication status
between the IDU and wired controller
any more. Commissioning can be
performed on the IDU without
configuring the wired controller.
This function is valid after step 9. For
example, if receiving a pausing
engineering commissioning signal
during the process of "10. Pre-startup
ODU valve status judging phase" in
step 11, the system will restore the
completion phase of "9. Pre-startup
refrigerant judging phase" in step 10.
Prompt for
Successful
Settings
All factory settings of the ODU are
restored and the unit waits for
re-commissioning.
Re-commissioning is not required.
The number of outdoor and IDUs is
memorized. Addresses of outdoor
and IDUs are all cleared. All the
other function settings are cleared.
Re-commissioning is not required.
The number of outdoor and IDUs is
memorized. Addresses of outdoor
and IDUs retain the preceding
settings. All the other function
settings are cleared.
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