LG ARUM072BTE5 Installation Manual page 149

Auto Addressing for Pipe Detection Procedure Flowchart.
Confirm indoor unit address settings.
Turn No. 1 of SW02M of heat recovery unit
PCB to OFF.
Confirm that the settings of Nos. 2, 3 of
SW02M correspond to the number of ports
used.
Optional (based on site requirements):
If a large capacity indoor unit is installed:
Check the settings of Nos. 4, 5, 6 on
SW02M.
If zoning, confirm Nos. 7, 8 of SM02M are set
to ON, then confirm that the individual port
DIP switch is in the ON position for SW01M.
Reset the power of heat recovery unit PCB.
Turn master outdoor unit PCB No. 5 DIP
switch to ON.
Select the "Idu" mode using ► and ◄, then
push the ● button.
Select the "Id 5" "Ath" or "Atc" function
and ◄, then push the ● button.
If outdoor temperature is >59°F, use "Ath".
If that does not work, use "Atc."
If outdoor temperature is <59°F, use "Atc".
If that does not work, use "Ath."
Select the "Idu" mode using ► and ◄, then
push the ● button.
Select the "Id 6 StA" function using ► and
◄, then push the ● button.
"88" displays on the LED of the outdoor unit
main PCB.
Outdoor unit operates for five (5) to sixty
Is the pipe setting condition
satisfied during indoor unit operation?
The number of indoor units detected is
displayed for thirty (30) seconds to one (1)
minute on the outdoor unit PCB after the
outdoor unit stops.
using ►
Are the numbers
of indoor units connected to the
outdoor unit and displayed on the
LED the same?
Auto pipe detection is complete.
An operation sound may be heard when the
system changes modes from cooling to heat-
ing and vice versa. This is normal.
Due to our policy of continuous product innovation, some specifications may change without notification.
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PRE-COMMISSIONING
Addressing with Heat Recovery Units
(60) minutes.
YES
YES
NO
Display error on outdoor unit PCB.
Display error on heat recovery unit PCB.
Outdoor unit PCB: HR → HR unit
number → Valve number
Heat recovery unit: "200"
Check heat recovery and indoor
units.
NO
Pipe detection error occurs after
thirty (30) seconds.
Check the pipe installation of the
outdoor, indoor, and heat recovery
units.
Retry the auto pipe detection
procedure after troubleshooting.
Auto pipe detection is incomplete.
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