Gree HOME GMV [116/367] Step 5 troubleshooting during installation of centralized controller

Dc Inverter VRF plus Water Heater Solution Service Manual CONTROL

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2. When ADDRESS SETTING is blinking, press SELECT button into address setting interface.

Press LEFT or RIGHT button to switch between SOFT and Hard ADDRESS settings, and UP or Down

button to adjust their values。After adjustment, press CONFIRM button to make the address values

corresponding and effective. If the cursor stops at hard address position (hard address is blinking), press

CANCEL button to make the setting value ineffective, in which case, the “- -”will be displayed.(Soft address is

the No. displayed in 1-64 grid of LCD and hard address is the actual one of communication module.)

In this example, the centralized controller controls 3 communication modules with the address of 01, 02

and 03 (i.e. hard address is 01,02 and 03).For convenient management, soft address will be set to the same

as hard address, i.e. “01 001”,“02 002”and “03 003”.

If communication is normal after setting, the centralized controller will display as the following figure:

I． 01,02 and 03 of soft address is displayed, which indicates normal communication of these 3

communication modules.

II． PRESENT UNIT NO. displays “01-08”, which indicates No. 08 indoor unit under 01

communication module is being checked.

III． Press ROOM/REGION button to check other indoor units’ status under present communication

module. Indoor units’ status is automatically detected, without setting in centralized controller.

z Step 5: Troubleshooting during Installation of Centralized Controller

Generally speaking, connection of communication lines, address DIP of communication module and

address mapping setting of centralized controller are the common problems during installation of centralized

controller. These problems can be reflected from running indicator (green) of communication module. Meanwhile, it

is recommended to debug the centralized controller after making communication of outdoor and indoor units

smooth to simplify the problems.

Soft address

Hard address

Soft address

display 01,02

and 03

Press this button to

check indoor unit status

under corresponding

soft address.