Product Overview

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• Avoid wire loops and poor groundings.
• Keep high voltage ignition wires well away from scanner wires.
The 45UV5 self-check scanner has four 6 foot (1800mm) leads:
45UV5-1005 & 1105:
Two black leads which power the shutter from the associated control and two red leads which drive
the UV tube and carry the flame signal to the control amplifier.
45UV5-1006, 1007, 1008 & 1009:
Two black leads which power the shutter via L1 & L2 and two red leads which drive the UV tube and
carry the flame signal to S1 & S2 on the control.
If it is necessary to extend the scanner wiring, the following instructions apply:
Scanner wires should be installed.in a separate conduit. The wires from several scanners may be
installed in a common conduit.
45UV5-1006, 1007, 1008, 1009.
1. Selection of wire
— Use #14, 16, or 18 wire with 75 C, 600 volt insulation for up to 100 foot distances (signal
loss approximately 20% at 100 feet).
— Asbestos insulated wire should be avoided.
— Multiconductor cable is not recommended without prior factory approval.
— Extended Scanner Wiring. For extended scanner wiring up to 1500 feet, and for shorter
lengths to reduce signal loss, use a shielded wire (Belden 8254-RG62U) coaxial cable, or
equal for each red wire of the 45UV5. The ends of the shielding must be taped individually
on both ends and not grounded.
For multiple burner installations:
2. Distances are decreased when more than one set of scanner leads are installed in a common con-
duit. For example, the maximum distance for 2 scanners is 750 feet and for 3 or more scanners
the distance decreases to 500 feet.
3. High voltage ignition wiring should not be installed in the same conduit with flame detector
wires.
WARNING: DO NOT CONNECT 45UV5 SCANNERS IN PARALLEL
16-24VDC TO CONTROL
SHUTTER
45UV5-1005, 1105
UV TUBE
560 VAC (RED)
BLACK L1, L2
SHUTTER
45UV5-1006, 1007, 1008, 1009
UV TUBE
RED S1. S2
ON CONTROL