Indoor Unit Monitoring; Function Table For The Input Signal (For Awhp Indoor Unit) - LG Dry Contact Installation Manual

Setting and using method

Indoor unit monitoring

n Monitoring whether the indoor unit is operating: Refer to
below and connect to the control device that you want to
control.
n Monitoring indoor unit error: Refer to below and connect to
the control device that you want to control.
!
CAUTION
Field supply power should not use more than DC 12 V (0.5 A), AC 24 V (0.5 A).
22 Dry contact for thermostat
Field Supply
Power
Operation Display
AC or DC
(Depends on Operation display power type)
Field Supply
Power
Error Display
AC or DC
(Depends on Error display power type)

Function table for the input signal (For AWHP Indoor unit)

No power input
Connect separate
External voltage of
DC 12 V, AC 24 V
Notes
Do not input the voltage signal in
"NON VOLT" setting mode otherwise
it will cause serious damage
CN_OPER
Operation Thermal AUTO
1 1 0
1 1 0
1 1 0
1 1 0
1 1 1
1 1 1
1 1 1
1 1 1
※If Operation input was 0(Operation stop), Thermal input and CN_MODE input don't work.
※If Thermal input was 0(Thermal Off), CN_MODE input doesn't work.
CN_WIND Function
On
DHW
Off
On
NIGHT SILENT
Off
On
EMERGENCY MODE
Off
※If both Operation input and DHW input were 0(Stop, Off), Night silent input and Emergency mode input
don't work.
Setting and using method
DC 12 V, AC 24 V
Thermostat
LG does not
supply this section
(Field supply)
CN_MODE
Function
HEAT COOL
0 0 NA
0 1 COOL
1 0 HEAT
1 1 NA
0 0 AUTO
0 1 NA
1 0 NA
1 1 NA
Installation manual 23