Wiring - Honeywell C7061M Product Data

Miniature dynamic selfcheck ultraviolet flame detector
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UPPER
LIMIT 90º
90º
HORIZONTAL
PLANE
VERTICAL
PLANE
LOWER
LIMIT 45º
Fig. 5. C7061 mounting positions.
To mount a C7061M (see Fig. 6):
1. Hold the unit securely with one hand to prevent it from
rotating.
2. Tighten the mounting nut approximately 4 turns with the
other hand until the unit is held securely in place.
3. Make sure the unit is properly aligned in the vertical
plane when viewed from the front.
MOUNTING
PIPE
MOUNTING
NUT
Fig. 6. Mounting C7061M Detector.
C7061M MINIATURE DYNAMIC SELF-CHECK ULTRAVIOLET FLAME DETECTOR
45º
M29117A
DO NOT TILT
DO NOT MOUNT
VERTICAL PLANE
HORIZONTALLY
MOUNTING
DO NOT MOUNT
UPSIDE-DOWN
NOTES:
1.
Be sure the C7061M is properly aligned vertically
when seen from the front. If not, the shutter may
be damaged or malfunction.
2.
File any burrs or protrusions from the monitoring
pipe. If the packing in the mounting nut is dam-
aged, any chance of leakage may be caused.
3.
Do not use a tool such as a pipe wrench when
tightening the mounting nut. Excessive torque by a
tool could damage the packing and compromise
the seal.
4.
Do not adjust the mounting pose by forcibly hold-
ing the unit or wiring pipe. Failure to do so may
damage the packing and compromise the seal.

WIRING

CAUTION
Equipment damage hazard.
Improper wiring can permanently damage amplifier.
When using the C7061 and the R7861 Dynamic
Self-Check Amplifier, be careful not to short the white
shutter leadwires together (by wiring incorrectly, leaving
an incorrect jumper wire, or stripping the insulation too
much so the bare leadwires can touch).
NOTICE
Per industry standards, a conduit seal or a cable type that
is sealed is required to be installed in a device that can
result in flammable gas or flammable liquid flow through a
conduit or cable to an electrical ignition source in the
event of a seal leakage or diaphragm failure.
1. All wiring must comply with applicable local electrical
codes, ordinances, and regulations. Use NEC Class 1
wiring.
2. Keep the flame signal leadwires as short as possible
from the flame detector to the terminal strip or wiring
subbase. Capacitance increases with leadwire length,
reducing the signal strength. The maximum permissible
leadwire length depends on the type of leadwire and
conduit type and diameter. The ultimate limiting factor in
flame signal leadwire length is the signal voltage. Refer
to Table 1.
3. The C7061M1008 detector has color-coded plastic-insu-
lated, no. 18 leadwires, 8 ft (2.4m) long, rated for 221°F
(105°C). These wires must be run in a conduit. The
C7061M1016 has a Brad Harrison® Type 41310 connec-
tor.
4. If the leadwires are not long enough to reach the termi-
nal strip or wiring subbase, make the required splices in
a junction box.
5. If splicing is necessary, use moisture-resistant no. 14
wire suitable for at least 167°F (75°C) if the detector is
M29118A
used with a flame safeguard primary control, or at least
194°F (90°C) if used with a flame safeguard
programming control.
6. For high temperature installations, use Honeywell
specification no. R1298020 wire 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 600 volts
and for breakdown up to 7500 volts. For the other
leadwires, use moisture-resistant no. 14 wire selected for
a temperature rating above the maximum operating
temperature.
7. Refer to Fig. 7 for wiring connections.
7
65-0304—05

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