10
SCANNER WIRING
To reduce electrical noise interference, the scanner cable should be installed in flexible or rigid conduit.
Take precautions to keep the scanner cable away from any high inductive wiring associated with high
inductive loads or high voltage, or high energy spark ignition systems.
FIGURE 6.
WIRING DIAGRAM
Notes:
1.
Flame relay contacts are shown in de-energized (no flame) condition.
2.
Fault relay contacts are shown in de-energized (fault) condition.
3.
BMS = Burner Management System (by others).
4.
External 2.0 Amp fuses recommended.
5.
A functional ground screw is provided on the scanner end plate.
An external ground wire can be installed to comply to local codes.
6.
There are no internal customer replaceable parts.
7.
Although they are at the same potential internally, the scanner’s 24 VDC power source (-) must
be connected to the Blue wire, not the Red wire.
CAUTION: The Phoenix flame scanner requires 24 Vdc power for operation. Connection
to a 24 Vac or 120 Vac power source will damage the scanner. Refer to wiring diagrams.
External 2.0 Amp fuses are recommended to protect Flame Relay and Fault Relay con-
tacts. All wiring to the scanner should be rated at 90°C. For runs less than 1000 feet, the
use of Fireye Scanner Cable, P/N 59-546, (8 wire) is recommended. For runs in excess of
1000 feet, consult the factory.
CAUTION: The Phoenix flame scanner 4-20mA analog output is SELV rated only when
the Phoenix is powered by an SELV rated 24 VDC power supply. The recommended Fireye
P/N 60-2685 power supply is SELV rated.
INPUT
POWER
24VDC
FLAME
RELAY
(Note 1)
FAULT
RELAY
(Note 2)
FAULT
RELAY
(Note 2)
(+)
(-)
(+)
(-)
FIREYE 59-546-X CABLE
(NOTE 5)
BLACK (+)
BLUE (-)
ORANGE
BROWN
TAN
VIOLET
RED
24VDC
TO BMS
INPUT
(NOTES 3 & 4)
TO BMS
INPUT
(NOTES 3 & 4)
TO BMS
INPUT
(NOTES 3, 7 & 8)
YELLOW
+
_
CHASSIS
FIREYE
60-2685
POWER
SUPPLY
SHIELD
(NOTE 6)
ANALOG
OUTPUT
4-20mA
PHOENIX 85UVF/IRF
>
>
>
>
>
>
>
>
2
6
8
5
7
4
1
3
QUICK-DISCONNECT PIN NUMBER
GROUND
EARTH
