Gree GMV-120WM/B-F Service Manual

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
120
1.3.5. Basic Operations for Engineering Commissioning
1.3.5.1 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.
——
1.3.5.2 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.
 If above function settings are incorrect, unit will run abnormal and compressor may even be
damaged.

Gree GMV-120WM/B-F Specifications

General

Brand	Gree
Model	GMV-120WM/B-F
Category	Inverter
Language	English