LG ACP IV Install/Owner’s Manual page 12

INSTALLING ACP IV
12
Fixing the ACP IV to the wall
ACP IV can be installed by fixing to the wall.
To install the ACP IV in an adequate place,
proceed according to the following explana-
tion. It explains here on how to install the ACP
IV with the example of installing the ACP IV
on the wall.
• Decide the space to install the ACP IV.
Before installing the ACP IV, check if it is the
adequate place to connect the ACP IV with
the power, RS-485, and LAN cable.
• Fix to the wall using the driver. It can be
fixed as in the following figure according to
the location to install
PACP4B000
Connecting RS-485 cable to the
ACP IV
After fixing the ACP IV in the installation place,
RS-485 cable that was connected to PI485
shall be connected to the ACP IV. To connect
RS-485 cable to the ACP IV, proceed as the
following order.
• First, among the connectors that can be con-
nected to the ACP IV, connect the end of
RS-485 cable connected to BUS-A of PI485
to Tx part. Next, connect the end of RS-485
cable connected to BUS-B of PI485 to Rx
part.
• RS-485 cable that was connected to PI485
shall be connected to CH port (RS-485 port)
of the ACP IV.
- Plug the connector connecting RS-485
cable into one of CH1 ~ CH4 ports.
- There are 1~6 CH ports, and it must be
plugged into one of 1~4 ports for use.
- For AHU, plug the connector connecting
RS-485 cable into CH5 ports.
- For chiller, plug the connector connecting
RS-485 cable into CH6 ports. (with chiller
option S/W applied)
PACP4B000
! CAUTION
If a different type of connection is made
other than BUS format as in the figure,
the product may malfunction. So be care-
ful during the installation.
ACP IV shall be installed in accordance
with national wiring regulations.
Connecting Ethernet cable (LAN
cable) to the ACP IV
After connecting the ACP IV and RS-485
cable, Ethernet cable shall be connected to
the ACP IV.
ACP IV may be connected to hub through
Ethernet cable, or directly to AC Manager IV.
Connecting the ACP IV and hub
It is the case of connecting the ACP IV to the
basic internet network installed at the site,
and it is generally connected to the hub.
In such case, Ethernet cable shall be connect-
ed as a direct cable.
Use Ethernet cable (direct cable) to connect to
LAN port of the ACP IV.