RKI Instruments 65-2432RK - Manual (Page 8)

65-2432RK CO Transmitter • 8
If the CO detector is mounted to the junction box, skip to step 5. If not, continue with
step 2.
2. Remove the junction box cover.
3. Guide the two wires that extend from the top of the CO detector through the bottom
conduit hub of the junction box.
4. Screw the CO detector into the bottom conduit hub of the junction box.
5. At the monitoring site, use #10 screws through the junction box’s two mounting holes
to secure the junction box to a vertical surface.
CAUTION: Mount the CO transmitter with the detector facing down (see Figure 2.)
Wiring the CO Transmitter to a Controller
WARNING: Always verify that the power source is OFF before you make wiring
connections.
1. Turn off the controller.
2. Turn off or unplug incoming power at the power source end.
3. Remove the junction box cover.
4. Verify that the detector leads are wired to the amplifier’s detector terminal strip.
If necessary, connect the detector leads to the detector terminal strip as shown in
Figure 3.
5. Verify that the jumper block is installed over the TOXIC selector of the amplifier type
selector as shown in Figure 3.
6. Guide a two-conductor, shielded cable or two wires in conduit through the top
conduit hub of the junction box.
7. Connect the two wires to the interconnect terminal strip as follows (see Figure 3.)
• Connect the positive wire to the terminal labeled 24V + .
• Connect the feedback wire to the terminal labeled 4/20 FB .
CAUTION: If using shielded cable, leave the drain wire insulated and disconnected at the
transmitter. You will connect the opposite end of the cable’s drain wire at the
controller.
8. Secure the junction box cover to the junction box.
9. Route the cable or wires leading from the CO transmitter through one of the conduit
hubs at the controller housing.
CAUTION: Do not route power and transmitter wiring through the same conduit hub. The
power cable may disrupt the transmission of the transmitter signal to the controller.