GREE ELECTRIC GMV(L)-Pd100W/NaB-K, Service Manual

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DC INVERTER MULTI VRF 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.
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.
A. Connection of communication lines
Soft address
Hard address
Soft address
display 01,02
and 03
Press this button to
check indoor unit status
under corresponding
soft address.