MINIPEEPER® ULTRAVIOLET FLAME DETECTORS
60-2026—10
8
Fig. 8. Mounting C7044A Detector on blast tube.
The C7044 is mounted in a 29/32 in. (23.0 mm) hole in the
blast tube. The mounting bracket is fastened to the blast tube
with 2 screws on 1-27/64 in. (36.1 mm) centers.
The mounting bracket is designed so that the detector can be
removed from the blast tube for cleaning and then replaced
without disturbing the sighting angle. Loosen the 2 screws
holding the bracket to the blast tube, but do not loosen the
clamp screw on the bracket. Twist both the bracket and
detector to remove them.
WIRING (ALL MODELS—FIG. 10)
CAUTION
Equipment Damage Hazard.
Can cause improper operation.
The blue (tan with blue tracer with C7035A1080)
leadwire must be connected to the F terminal of the
flame safeguard control subbase or terminal strip and
the white (tan leadwire without blue tracer with
C7035A1080) to the G terminal (see Fig. 10). Failure
to observe the circuit polarity by reversing the
leadwires (even momentarily) may cause the flame
detector to improperly supervise the combustion
flame.
1.Disconnect power supply before beginning installation to
prevent electrical shock and equipment damage. All
wiring must comply with applicable electrical codes,
ordinances, and regulations. Use NEC Class 1 wiring.
2.If the leadwires are not long enough to reach the terminal
strip or wiring subbase, make the required splices in a
junction box.
3.If splicing is necessary, use moisture-resistant wire
suitable for at least 167°F [75°C] if the detector is used
with a flame safeguard primary control, or at least 194°F
[90°C] if used with a flame safeguard programming
control.
4.For high temperature installations, use Honeywell
Specification no. R1298020 or equivalent for the F
leadwire. (This wire is rated up to 400°F [204°C] for
continuous duty. It is tested for operation up to 600V
and breakdown up to 7500V.) For the other leadwires,
use moisture-resistant wire selected for a temperature
rating above the maximum operating temperature.
IMPORTANT:
Do not run the flame detector wiring in the same
conduit with high voltage ignition transformer wires.
1-27/64 IN.
(36.1 mm)
8-32 RHIS
(EUROPEAN M-4)
SCREW (2)
29/32 IN. (23.0 mm)
MOUNTING HOLE
IN BLAST TUBE
MOUNTING
BRACKET
C7044A
DETECTOR
CLAMP
SCREW
M3020
