LG ARND203DCR4 Installation Manual page 47

Figure41: UI Module
Drawing
Label Unit Connection
Reference
2 CH1 CH1 port of Other module for communication
DI1 Occupancy
3 DI2 Outside Air filter Switch
DI3 Unassigned
UI1 Unassigned
UI2 Unassigned
UI3 Unassigned
4
UI4 Unassigned
UI5 Space / Return Duct Temperature (Field Option)
UI6 Space / Return Duct Relative Humidity (Field Option)
Figure42: NTC Module
Drawing
Label Unit Connection8
Reference
2 CH1 CH1 port of Other module for communication
RI1 Space / Return Duct Temperature(Field Option)
RI2 Unassigned
RI3 Outdoor Air Temperature
RI4 Leaving Air Temperature(Main Coil) #1
3
RI5 Leaving Air Temperature(Main Coil) #2
RI6 Unassigned
RI7 Supply Air Temperature
RI8 After Heater Air Temperature
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Due to our policy of continuous product innovation, some specifications may change without notification.
Type Position Indicates
RS485
NO
(Closed = Occupied)
NO (
Closed = Dirty)
NO (
Closed = Dirty)
0 – 10Vdc
0 – 10Vdc
Sensor Type Position Indicates
RS485
NTC 10k
NTC 10k
NTC 10k
NTC 10k
NTC 10k
NTC 10k
NTC 10k
NTC 10k
Range
-130-210F
-130-210F
Range
-130-210F
-130-210F
-130-210F
-130-210F
-130-210F
-130-210F
-130-210F
-130-210F
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