Gree GMV-450WM/B-X Service Manual

GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
99
4.1 Basic Operations
Basic Operations
Operation Method
Remark
Starting
engineering
commissioning
Press and hold "SW7" on the
master unit for more than five
seconds.
——
Selecting
no-wired-controller
commissioning
mode
Press "SW4" and "SW5"
simultaneously in any
commissioning progress after the
unit enters the commissioning
status.
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.
Quitting
engineering
commissioning
In engineering commissioning
status, press and hold "SW7" for
more than five seconds on the
master unit to quit commissioning.
——
Pausing
engineering
commissioning
In engineering commissioning
status, press "SW6" on the master
unit to retain the previous
commissioning completion phase of
the current commissioning phase.
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.
Continuing
engineering
commissioning
In engineering commissioning
pause status, press "SW6" on the
master unit to continue engineering
commissioning.
——
4.2 Restoring Factory Settings
Restoring
Factory
Settings
Setting Method
Prompt for
Successful
Settings
Remark
Restoring
setting 1
Press and hold
"SW8" on the
master unit for more
than 10 seconds.
All LEDs blink for
three seconds.
All factory settings of the ODU are
restored and the unit waits for
re-commissioning.
Restoring
setting 2
Press and hold
"SW3" and "SW8"
on the master unit
for more than 10
seconds.
All LEDs blink for
five seconds.
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.
Restoring
setting 3
Press and hold
"SW5" and "SW8"
on the master unit
for more than 10
seconds.
All LEDs blink for
seven seconds.
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.

Gree GMV-450WM/B-X Specifications

General

Brand	Gree
Model	GMV-450WM/B-X
Category	Air Conditioner
Language	English