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Installation environment check
and setting up the equipment
address
!
NOTE
• The maximum communication distance
guaranteed by LG Electronics is 1 000
m. That is, the equipment installed at
the farthest location from AC Ez Touch
shall be within 1 000 m.
• It is recommended to use the communi-
cation cable of 0.75 mm
• Set a unique address, that does not
overlap with other equipment on the
same bus.
• Each device which can be used with PDI
must be set to a unique address when
connected with PDI. For further informa-
tion about the devices can be used with
PDI, please refer to the PDI manual.
Central control address of the
indoor unit set-up
First, you need to assign address that does
not overlap with other equipment (Air-condi-
tioner/Ventilation/Heating equipment) consid-
ering the entire installation composition con-
nected to one AC Ez Touch.
The equipment address can be set in hexa-
decimal from 00 to FF.
!
NOTE
Outdoor unit and indoor unit number
assignment
• If the outdoor unit product is Multi V, it
is recommended to set the first digit of
the address as the outdoor unit number,
and set the second digit as the indoor
unit number, so that the system compo-
sition and division can be easily identi-
fied during the address setting.
Outdoor unit
(Group) number
2
or more.
Indoor unit
number
INSTALLATION AND SETTING
!
NOTE
• The central control address setting
method may be different according to
the indoor unit product or remote con-
troller type, so set the address by refer-
ring to the indoor unit product or wired
remote controller manual.
RS 485 Communication cable
connection
1
Maximum of 64 indoor units can be con-
nected to one AC Ez Touch. If multiple
number of the outdoor units need to be
connected, the connection should be in
BUS type. Otherwise, AC Ez Touch may
malfunction.
<Correct example: RS485 BUS type
connection>
< Incorrect example: RS485 STAR
type connection >
9
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