a. The array of the liquid crystal display is composed of 4X16 grids, and each grid is
composed of two blocks of different sizes (as shown in the above figure). The
status indication table is as follows：
b. The array includes horizontal coordinates 00-15 on the up side and vertical
coordinates 00+, 16+, 32+ and 48+ on the left side, which indicate the address of
the indoor unit. The sum the horizontal coordinate and the vertical coordinate
composes the grid the address of the grid. Each grid corresponds to an indoor unit
of this address.
Status
Object
Constantly on Slow blink Fast blink Not bright
Big black
block
Small black
block
In-service
Selected
Out of
service
Fault of
indoor/
outdoor
unit
Power
off
Power on
2. LCD display description
1) Description of the main page
Fig 2.5 The example diagram of the main page
Installation & Owner‘s Manual
20
①The LCD displays the main page, 60 air conditioners are in service, which 28 are
powered on and 32 off.
②The address of the air conditioners is sum of the coordinates. For example, the
address of (48+,09) is 48+09=57.
③In the array, the big dots from (16+,00) to (32+,15) are luminous, and the small dots
are not luminous. It indicates the 32 air conditioners with the addresses from 16 to 47 are
powered off.
④In the array, the big and small dots from (48+,09) to (48+,12) are not luminous. It
indicates the four air conditioners with the addresses from 57 to 60 are outside.
⑤All other big and small dots in the array are luminous. It indicates all other air
conditioners are in the net powered on.
⑥The centralized controller communicates with the computer normally,when the
keypad of the centralized controller is locked.
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