LG ARUM072BTE5 Installation Manual page 150

PRE-COMMISSIONING
Addressing with Heat Recovery Units
Manual Addressing for Pipe
Detection
1. Enter the central control address into each indoor unit using its
wired remote control.
2. Turn No. 1 of DIP switch bank SW02M of the heat recovery unit
PCB ON.
3. Reset the power of the heat recovery unit PCB.
4. Through the heat recovery unit PCB, manually set address of
each heat recovery unit valve to the central control address of the
indoor unit connected to that valve.
5. Reset the power to the outdoor unit PCB.
6. The number of the indoor unit installed will be displayed after about five (5) minutes. (Example: Heat Recovery Unit to the Number of the
Indoor Unit.)
7. Reset the power of the outdoor unit PCB and the heat recovery unit.
8. Manual pipe detection addressing is complete.
Manual Addressing for Pipe Detection Flowchart.
Execute if auto pipe detection procedure
fails.
Turn No. 1 of DIP switch bank SW02M of
heat recovery unit PCB ON.
Reset the power of heat recovery unit PCB.
Enter the central control address into each
indoor unit using its wired remote control.
On the heat recovery unit PCB, manually
set the addresses of each of its valves to
the central control address of the indoor
unit connected to that valve.
SW01M represents the four ports. Select
DIP Switch No. 1 for Port 1, and use
SW03M and SW04M to enter the
hexadecimal address entered into the
indoor unit's wired remote controller.
Turn DIP Switch No. 1 OFF, select DIP
Switch 2, and repeat. Lower DIP Switch 2,
and repeat for all used ports. Lower all DIP
Switches. Do not hit reset on HR box.
Reset the outdoor unit, wait for unit display.
Raise DIP Switch to verify port address, if
needed.
1. If a central controller is not installed yet, leave the address data alone until the installer adds the central controller, and sets the central
control address as desired.
2. If a central controller is already installed, the wired remote controller of the indoor units will provide the central control addresses. (In this
case, manually set the heat recovery unit pipe address following the central control address of the indoor unit.)
3. Central controller addresses must be set manually at each individual controller.
4. A pipe that does not have an indoor unit connected to it should be set with a different address than a pipe that does have an indoor unit
connected to it. (If addresses are the same, the valves will not operate.)
5. Change the manual pipe settings using the heat recovery unit PCB.
6. An error indicates that the manual pipe detection procedure was not completed properly.
7. To save the pipe detection procedure results automatically,
procedure has finished.
150
Reset the power to the outdoor unit PCB.
Wait for five (5) minutes.
The number of the indoor units installed is
displayed. Example: Heat recovery unit →
Number of indoor units.
Are the numbers
of indoor units connected to the
outdoor unit and that displayed on
the LED the same?
YES
Manual pipe detection is complete.
do not turn off the main outdoor unit PCB for five (5) minutes after the
Due to our policy of continuous product innovation, some specifications may change without notification.
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Location of DIP Switch SW02M on the Heat Recovery Unit Main PCB.
SW02M SW03M
(DIP Switch for Set Up of Heat
Recovery Unit Functions)
NO
Check the central control addresses
of the indoor and heat recovery units.
Make sure to reset the power to the
outdoor unit if the central control unit
is changed.
SSD
SW05M
SW01M
(SW01M / SW03M / SW04M
SW04M
Switches for Manual Valve Addressing)