61-1004RK/61-0191RK Combustible Gas Detector • 7
As mentioned in “Infrared CO2 Detector” on page 5, the IR CO
2
detector wires to an RKI
controller the same way as an RKI LEL detector, to the LEL detector terminals. See
Figure 2 below for the wiring connections.
1.
Turn off the controller.
2.
Turn off or unplug power to the controller.
3.
Remove the cover from the junction box.
4.
Guide a four-conductor, shielded cable or four wires in conduit through the top
conduit hub of the junction box. Connect the wires to the terminals opposite the
detector leads.
CAUTION:
Leave the shield drain wire insulated and disconnected at the 61-1004RK. You will
connect the opposite end of the cable’s drain wire at the controller.
5.
Secure the junction box cover to the junction box.
6.
Route the cable or wires in conduit leading from the detector through one of the
conduit hubs at the controller.
CAUTION:
Do not route power and detector wiring through the same conduit hub. The power
cable may disrupt the transmission of the detector signal to the controller.
Figure 2: Wiring the CO
2
Detector to a Controller
Black
Green
White
Red
Terminal Strip
Black
Green
White
Red
IR CO2
Detector
Controller
LEL Detector
Terminals
Detector
Wires
Cable Shield
Controller Housing
