LG LBNG3061YL - Defrost Control

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. Defrost Control
• Defrost control is availavle 45 minutes later since heating mode operation started, and it will not prolong over
10 minutes.
• Defrost control is carried out when the outdoor pipe temp. falls below -6°C for more than 3 minutes after 45
minutes passed from starting of heating operation.
• Defrost ends after 10 minutes passed from starting of defrost operation or when the outdoor pipe temp. rises
over 12°C after 5 minutes passed from starting of defrost.
7. Self-diagnosis Function
• 'CHECK' will display in the remote controller display when a problem occurs. Then please contact your dealer.
• Correct the accident point as shown in the table below before restarting operation.
• During the normal operation 'CHECK' won't be displayed in the remote controller.
Remote controller LCD Accident Point
CH 01 Indoor room or piping temperature thermistor error
CH 02 Outdoor air or piping temperature thermistor error
CH 03 Indoor main body / Remote controller unit communication error
CH 04(Optional) Water level float switch error
CH 05 Indoor and outdoor communication line error
CH 08 CT error
CH 09 DC peak error
CH 10 DC Low voltage error
CH 11 High pressure switch or instantaneous power failure
CH 14 Discharge pipe temperature overheating
More than 45 minutes
of heating operation
Within
9min. 45sec.
ON OFF
ON ON
ON
ON OFF
OFF
COMPRESSOR
4-WAY VALVE
INDOOR FAN
-6°C ON
12°C OFF
The outdoor
piping Temp.
ON
More than 10 min.
running of compressor
More than 45 minutes
of heating operation
5sec.
HOT-
START
ON