LG MULTI V PLUS ARUV Series Installation Manual page 73

Display
Temperature sensor of rear-side heat
1 2 4
exchanger of sub1 outdoor unit
Liquid pipe temperature sensor of
1 2 5
sub1 outdoor unit
Subcooling inlet temperature sensor of
1 2 6
sub1 outdoor unit
Subcooling outlet temperature sensor
1 2 7
of sub1 outdoor unit
High pressure sensor of sub2 outdoor
1 2 8
unit
Low pressure sensor of sub2 outdoor
1 2 9
unit
Air temperature sensor of sub2
1 3 0
outdoor unit
Suction temperature sensor of sub2
1 3 2
outdoor unit
Discharge temperature sensor of the
constant speed compressor 1 of sub2
1 3 3
outdoor unit
Discharge temperature sensor of the
constant speed compressor 2 of sub2
1 3 4
outdoor unit
Temperature sensor of front-side heat
1 3 5
exchanger of sub2 outdoor unit
Temperature sensor of rear-side heat
1 3 6
exchanger of sub2 outdoor unit
Liquid pipe temperature sensor of
1 3 7
sub2 outdoor unit
Subcooling inlet temperature sensor of
1 3 8
sub2 outdoor unit
Subcooling outlet temperature sensor
1 3 9
of sub2 outdoor unit
High pressure sensor of sub2 outdoor
1 4 0
unit
Reverse connection of R, S, T power
1 4 1
of sub2 outdoor unit
Transmission error : main outdoor unit
1 4 2
sub1 outdoor unit
High pressure of sub1 outdoor unit
1 4 3
Low pressure of sub1 outdoor unit
1 4 4
High pressure of sub2 outdoor unit
1 4 5
Low pressure of sub2 outdoor unit
1 4 6
Low/high voltage of sub1 outdoor
1 4 7
unit
Title
Temperature sensor of rear-side heat exchanger of sub1 unit
is open or short
Liquid pipe temperature sensor of sub1 outdoor unit is open
or short
Subcooling inlet temperature sensor of sub1 outdoor unit is
open or short
Subcooling outlet temperature sensor of sub1 outdoor unit is
open or short
High pressure sensor of sub2 outdoor unit is open or short
Low pressure sensor of sub2 outdoor unit is open or short
Air temperature sensor of sub2 outdoor unit is open or short
Suction temperature sensor of sub2 outdoor unit is open or
short
Discharge temperature sensor of the constant speed com-
pressor 1 of sub2 outdoor unit is open or short
Discharge temperature sensor of the constant speed com-
pressor 2 of sub2 outdoor unit is open or short
Temperature sensor of front-side heat exchanger of sub2 unit
is open or short
Temperature sensor of rear-side heat exchanger of sub2 unit
is open or short
Liquid pipe temperature sensor of sub2 outdoor unit is open
or short
Subcooling inlet temperature sensor of sub2 outdoor unit is
open or short
Subcooling outlet temperature sensor of sub2 outdoor unit is
open or short
High pressure sensor of sub2 outdoor unit is open or short
Reverse connection or omitting connection of R, S, T power
of sub2 outdoor unit
Failing to receive main signal at main PCB of sub2 outdoor
unit
System is off by excessive increase of high pressure of sub1
outdoor unit
System is off by excessive decrease of low pressure of
sub1 outdoor unit
System is off by excessive increase of high pressure of
sub2 outdoor unit
System is off by excessive decrease of low pressure of
sub2 outdoor unit
Input voltage of sub1 outdoor unit is more than 487V or
less than 270V
Test Run
Cause of Error
Installation Manual 73