LG Controller (UI Module)
Drawing
Reference
Label Unit Connection
Type
Position Indicates
Range
2
CH1 CH1 port of Other module for communication
RS485
3
DI1
Occupancy
NO
(Closed = Occupied)
DI2
Supply Air(RTD) / Outside Air(CTD) filter Switch
NO (
Closed = Dirty)
DI3
Unassigned
4
UI1
Outside Damper input
1)
(RTD Only)
0
– 10Vdc
0~100%
UI2
Exhaust Damper input
1)
(RTD Only)
0
– 10Vdc
0~100%
UI3
Recirculation Damper input
1)
(RTD Only)
0
– 10Vdc
0~100%
UI4
Unassigned
UI5
Space / Return Duct Temperature (Field Option)
0
– 10Vdc
-146-210F
UI6
Space / Return Duct Relative Humidity (Field Option)
0
– 10Vdc
-146-210F
1) Damper position feedback
LG Controller (NTC Module)
Drawing
Reference
Label
Unit Connection8
Sensor Type
Position Indicates
Range
2
CH1 CH1 port of Other module for communication
RS485
3
RI1 Unassigned
NTC 5k
-146-210F
RI2 Unassigned
NTC 5k
-146-210F
RI3 Outdoor Air Temperature
NTC 10k
-146-210F
RI4 Leaving Air Temperature(Main Coil) #1
NTC 10k
-146-210F
RI5 Leaving Air Temperature(Main Coil) #2
NTC 10k
-146-210F
RI6 Exhaust Air Temperature (RTD Only)
NTC 10k
-146-210F
RI7 Supply Air Temperature
NTC 10k
-146-210F
RI8 Outdoor Air Temperature After Wheel
2)
NTC 10k
-146-210F
2) In case of Compact DOAS: Outdoor Air temperature After Heater, if equipped
12