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Operator Interface:
P/N 95DISP-1, 95DISP-1-SS, Alpha -Numeric Display with five pushbutton keys.
P/N 95WIDISP-2 Infrared Transmitter, used in conjunction with
P/N 95WIHH-2 Hand-held communications tool.
Cable Specification:
P/N 59-546 (8-conductor), P/N 59-547 (12-conductor):
Multi-core, 8 and 12 conductor (color coded), 18- AWG, with foil wrap and overall
braided shield and drain wire. PLTC-ER rating. Maximum cable length 1000 feet (305 meters)
Cable Jacket: PVC / black (flame-retardant, RoHS compliant)
Temperature Rating: -40°F to +221°F (-40°C to +105°C)
P/N 59-546 Nominal O.D. 0.44" (11.2 mm), maximum O.D. 0.48” (12.2mm)
P/N 59-547 Nominal O.D. 0.52" (13.2 mm), maximum O.D. 0.56” (14.2mm)
INSTALLATION NOTES
The InSight II flame scanners determine the presence or absence of flame by monitoring the fre-
quency spectrum of the flame. The scanner should initially be mounted so that the primary combus-
tion zone is within the scanner’s line of sight.
The location and sighting instructions listed in the following sections are rough guidelines for the
location of the scanner. The scanner provides feedback via its VFD or wireless display to assist in the
adjustment and proper alignment of the flame scanner. Refer to the setpoint procedures described in
this bulletin.
Note: An acceptable scanner location must ensure the following:
Reliable main flame and/or ignitor flame detection at all air flow and furnace loads (ranges of fuel
firing).
Rejection of the ignitor flame if too short, or in the wrong position to ignite the main flame reliably,
thus prohibiting the delivery of fuel to the burner.
INSTALLATION PROCEDURE
WARNING: Protective filtered lenses should be worn when viewing flame. Infrared and
ultraviolet energy from the flame can be damaging to the eyes.
1.
The best results are obtained when the scanner is aimed so that the scanner’s line of sight inter-
sects the burner center at a slight angle (e.g. 5 degrees) and sees a maximum of the primary com-
bustion zone, as shown in Figure 4. If only one scanner is used per burner, the line of sight
should also intersect the igniting flame.
2.
For installations where separate scanners are used to monitor main and ignitor flames, the main
flame scanner should be sighted so it does not detect the ignitor flame.
3.
The scanner should have an unrestricted view of flame as far as possible. Physical obstructions
such as air register blades, interfering vanes, or other hardware should be cut away or notched so
they do not fall within the scanner’s line of sight as shown in Figure 6.
Note: Always check with the burner manufacturer before you trim the register blades.
