Auto Addressing For Pipe Detection - LG Multi V5 Service Manual

Auto Addressing for Pipe Detection

Auto addressing for pipe detection function sets the connection relationship automatically between the indoor units and the heat recovery
units.
1. Turn No.1 of SW02M on the heat recovery unit PCB to OFF.
2. Confirm that the setting of Nos. 2, 3 of SW02M corresponds with the number ports used.
3. Reset the power of heat recovery unit PCB.
Turn master outdoor unit PCB No. 5 DIP switch to ON.
4.
5.
not work, use "Atc."If outdoor temperature is <59°F, use "Atc". If that does not work, use "Ath."
Atc = "At-cold outside", and Ath = "At-hot outside". Select accordingly.
6.
7.
8. The number "88" is displayed on the SSD of the outdoor unit main PCB. If the display shows ------, then wait longer.
9. The automatic pipe detection procedure starts.
10. The procedure will run from five (5) to sixty (60) minutes, depending on the number of connected indoor units, and the ambient outdoor
temperature.
11. 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.
• The number of indoor units connected to each heat recovery unit will be displayed.
• If there is an auto pipe detection error, "200" will be displayed. .
• Run the auto addressing and auto pipe detection procedures again whenever an indoor unit PCB and / or and heat recovery unit PCB are
replaced. Apply power to the indoor units and heat recovery units after the repair is complete, otherwise operation errors will occur.
• Error No. 200 occurs if the number of actual connected indoor units and the number of detected indoor units are different.
• If the auto pipe detection procedure fails, perform the manual pipe detection procedure. (If the auto pipe detection procedure is successful,
the manual pipe detection procedure is not required.)
• The auto pipe detection procedure can be run again after a failed auto pipe detection procedure attempt; just reset the outdoor unit first.
• Do not turn off the main unit PCB for at least five (5) minutes after the auto pipe detection procedure is complete; allow time for the
outdoor unit to automatically save auto pipe detection results.
PIPE DETECTION ADDRESSING
Due to our policy of continuous product innovation, some specifications may change without notification.
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