LG PESC0RV0, Installation Manual, Page: 7 / 41

Installation Method
Installation manual 7
ENGLISH
③
Wiring and CO2 sensor installation
Power line connection(DC12V) : Connect P+(Power-Red) with G- (Ground-Black).
Output connection : Connect G (Ground) with O1(output-white).
1. All the supplied electric cables come with connector. No cutting or additional connection
procedure is required.
2. If wire should be cut and reassembled while installation, be sure to check the colors and power
description of terminal before you connect the wires.
Otherwise, Incorrect connection & short-circuit might cause wrong operation or malfunction of
sensor.
④
Fixing cover and reassembly
Reassemble the CO2 sensor PCB with a bottom case, which is already fixed on the wall.
Assemble the front case onto the bottom case
⑤
Connect with main PCB
When sensor is installed, connect the extension cable to the male connector of 15cm cable.
After that, Connect the other end of the cable to CN_CO2 on main PCB.
Terminal Function Electric spec. Remarks
P (1) Red Power (+) 12VDC Power
G (2) Black Power Ground (-) GND System supply
O1 (3) White Analogue output 0-5VDC 0-2,000 ppm
Main PCB
CN_CO2
Harness Type
SMW250 - 04
P G
O1
CO2 sensor
+ +
Connection wire
10m(1EA)
Red
Black
White