Honeywell
C7015A
Infrared
The
C7015A
sulfide photocell that is sensitive to the infrared
radiation emitted by the combustion
as natural gas, oil, and coal.
n
Particularily
applications. supervisory applications.
Flame Detector includes a lead
offuels
suitable for combination or dual-fuel radiation is compatible with a wide range of flame
such
Flame Detector
q
When installed properly, can supervise the pilot
flame and/or the main burner flame.
w
Mounts easily on a standard
n
The lead sulfide photocell plugs into an electrical
socket in the
placeable.
n
The lead sulfide photocell’s sensitivity to infrared
C?OlSA
314
inch sight pipe.
assembly and is field re-
W
Models are available with
48 and 96 inches
W
Flexible metal cable protects and electrically
shields the detector leadwires.
q
Accessories available include a heat block, seal-off
adapter, reducer bushing, swivel mount and orifice
plate.
CONTENTS
[0.76, 1.22,2.64
leadwire
m].
lengths of 30,
F.P. * Rev.
11-91
l
OHoneywell
Inc. 1991 9 Printed in U.S.A. 9 Form Number
60-2306-5
C7015A
SPECIFICATIONS l ORDERING INFORMATION
Specifications
SUPER
SUPER TRADELINE models offer features not
TWELINE
MODELS
available on
TRADELINE or standard models, and are designed to
replace a wide range of Honeywell and competitive
controls. SUPER TRADELINE models are selected and
packaged to provide ease of stocking, ease of handling,
and maximum replacement value. Specifications of
SU-
PER TRADELINE models are the same as those of
standard models except as noted below.
SUPER TRADELINE MODEL AVAILABLE:
C7015A1126-with
104662DLead SulfidePhotocell, 110634A
FocusingLens, 105134GrificePlate,
and
390427A
48 in.
[1.22 m]
Reducer Bushing.
leadwires; includes
Bushing with
105061
HeatBlock,
SUPER TRADELINE FEATURES:
l
Gritice
plate (with
.125
in.
[3.175
mm] diameter
hex-
agonal orifice) for reducing the detector field-of-view.
=
Heat block for insulating the detector
temperatures higher than
250”
F [ 121” C].
125’
F
from
[52” C]
sight pipe
and up to
TABLE l-MODELS AVAILABLE.
Reducer bushing for mounting the detector on a
l
sight pipe; specifically, for replacing
sulfide inframd
SUPER TRADELINE pack with cross reference label
l
flame detectors.
FireyeW
l/2
lead
in.
and special Instruction sheet.
STANDARD MODELS
MODELS: See Table 6 for flame safeguard controls and
associated amplifiers.
DETECTOR
with wavelengths between 0.75 and 1 .O micron.
LEAD SULFIDE PHOTOCELL: Photoconductor
tance
AMBIENT TEMPERATURE RATING:
maximum at the lead sulfide photocell.
MOUNTING:
C7015A
104662DLeadSulfidePhotocell-twoleadsforinserting
RESPONSE: Responds to infrared radiation
resis-
decreases as incident radiant energy increases.
125’
F
[52”
Mount-knurled collar with
ternal
threads for mounting on a standard
3/4-14
NPSM in-
3/4
in. pipe
(see fig. 1).
into socket in
C7015A
(see Fig. 8).
C]
With
0.125 in.
%
insulate the detector from sight
To
mount the detector on a l/2 in. sight pipe, specifically to replace
[3.175
mm] diameter hexagonal orifice to
pipe
temperatures higher than
reduce
the detector field of view.
125’
F
[52” C]
Fireye
TM
lead sulfide infrared flame detectors.
and up to
250’
F
[121° Cl.
Order Information
When purchasing replacement and modernixation products from your Authorized Flame Safeguard Distributor or Wholesaler, refer to the
TRADELINE@
1.
Grder nwnber, SUPER TRADELINE. if desired.
2.
Length of leadwires
3.
Lead sulfide cell order number
If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:
1.
Your local Honeywell Residential and Building Controls Division Sales Office (check white pages of phone directory).
2.
Residential and Building Controls Division Customer Satisfaction
Honeywell Inc., 1885 Douglas Drive North
Minneapolis. Minnesota 554224386 (612) 542-7500
(In Canada-Honeywell
service offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan Mexico,
Netherlands, Spain Taiwan, United Kingdom, U.S.A.
Catalog or price sheets for complete ordering number, or
(30,48. or 96 in. [0.76.1.22, or 2.44 m].
104662D.
Liited/Honeywell
Limitee, 740 Ellesmere Road, Scarborough, Ontario
2
specify-
4. Replacement parts, if desired.
5. Accessories, if desired.
MlP 2V9)
International sales and
C7015A
SPECIFICATIONS
WIRING
CONNECTIONS:
Nominal 30, 48, or 96 in.
leadwire+hvoNo.
tom;
rated
for
18
194°F
AWG,flexible-tinnedconduc-
[90”
[0.76,
1.22, or 2.44 ml
C];
twistedpair-onebrown
and one white.
Leadwires enclosed in flexible metal cable-3/8 in.
mm] maximum outer diameter.
DIMENSIONS: See Fig. 1.
APPROVALS:
Underwriters Laboratories Inc. listed: File No.
MP268.
Canadian Standards Association certified: Master file
LR-95329-1.
Factory Mutual approved.
Industrial Risk Insurers acceptable.
IMPORTANT:
cluded with
Inc. requires that this sticker beplaced on any junction
box in which
stickerprohibits routing any other wiring through the
junction box.
RRPLACFMENT
104662D
Fig. l-Mounting dimensions of
Caution, stickers,
the C7015A.
C7015A
leadwires are connected. The
form
Underwriters Laboratories
PARTS:
Lead Sulfide Photocells
96-610, are
C7015A
infrared Flame Detector and accessories, in in. [mm].
[9.6
in-
ACCESSORIES:
110634A
105134
Bushing with Focusing Lens
Orifice
Plate, to reduce
the
detector
field
of view.
Diameter of
Hexagonal Orifice
Part No.
105134
(in.)
bml
0.125 3.175
105O61HeatBlocktoinsulatethedetectorfromsightpipe
temperatures higher than 125” F
250” F
[121° Cl.
[52’ C]
and up to
105172ASeal-0ffAdapter;withglasswindowtoprevent
hot gases
390427A
lf2
suljia2 infraredflame
Hookup
-R1298020;
from
reaching the lead sulfide photocell.
Reducer Bushing, to mount the detector on a
in. sight pipe;
specijically,
detectors.
to
replaceFireyeTM
Cable-
2-wire,
heat and moisture-resistant, No. 20
AWG,Teflon(TFE)insulated,ratedupto400°F[204”
C] for continuous duty; tested for operation up to 600
volts and breakdown up to 7500 volts.
118367A
Swivel Mount; provides adjustable positioning
of the
C7015A.
lead
‘COLLAR.
3/4 - 14 NPSM
INTERNAL THREADS
110634A /
BUSHING’
COLLAR,
3’4 - 14 NPSM
INTERNAL THREADS
106061
HEAT BLOCK
3!4 - 14 NPSM
INTERNAL THREAD
b/4-14NPSM
EXTERNAL THREADS
INSTALLING OR REPLACING A C7015A AND ACCESSORIES
C7615A
/
LENS 1
/
/
lO6172A
SEAL-OFF ADAPTER
105061
HEAT BLOCK
I
13’4.14
EXTERNAL THREADS
THREADS
NPSM
\W4-14NPSM
EXTERNAL THREADS
FINAL
3/4 INCH PIPE NIPPLE
THREADS
396427
REDUCER
BUSHING
3/4 - 14 NPSM
EXTERNAL THREADS
1RlNCH 5
SIGHTING PIPE
t?xza
l/2 -
14 NPSM
INTERNAL THREADS
105134
ORlFlCE
PLATE IN
314
INCH
COUPLING
314
SIGHTING
PIPE
b
INCH
REPLACING A FIREYEw LEAD SULFIED DETECTOR
3
MXM
60-2306-5
C7015A
OPERATION l INSTALLATION
Operation
OPERATION OF INFRARED DETECTORS
Infrared detectors can be used with gas, oil, coal, or
fuel flames. Since more than 90% of the total flame radiation
is infrared, these detectors receive ample radiation and can
detect weak
The lead sulfide cell used in the detector cannot
guish between the infrared radiation emitted by hot refractory and the infrared radiation from a flame. Therefore, the
infrared detection system includes an amplifier that responds only to the flickering characteristic of flame radiation
and rejects the steady radiation characteristic of hot refrac-
tory.
Unfortunately, smoke or fuel mist within the combustion
chamber can intermittently reflect, bend, or block the hot
WHEN INSTALLING THIS PRODUCT.. .
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous condition.
2. Check
product to make sure the product is suitable for your applica-
tion.
3. Installer must be a trained, experienced flame safe-
guard control service technician.
4. Afterinstallationiscomplete,checkoutproductopera-
tion as provided in these instructions.
!
A
( I \
Proper flame detector installation is the basis of a reliable
flame safeguard installation. Refer to the burner manufacturer instructions and instructions below. Carefully follow
instructions for the best possible flame detector application.
BASIC REQUIREMENTS
Because all flames produce infrared radiation, a
Infrared (lead sulfide) Flame Detector can be used to prove
the presence of a flame in a combustion chamber. The
detector is mounted outside the combustion chamber. Screw
themountingcollartooneendofasightpipeinsertedthrough
the wall of the combustion chamber. The lead sulfide photocell in the detector sights the flame through the sight pipe.
fkunes
as well as flames of higher intensity.
the
ratings given in
the
instructions and on the
CAUTION
1. Disconnect power supply before beginning installation to prevent electrical shock and equipment damage, there may be more than one
disconnect.
2. All wiring must be NBC Class 1 (line voltage).
3. Use the
sulfide photocells (part no.
signal amplifiers specified, (see Table 6).
C7015A
only with Honeywell lead
104662D)
dual-
diitin-
and flame
C7015A
refractory radiation, thus making it fluctuate. This fluctuating
action can simulate the flickering radiation from a flame,
and infrared radiation may be present even after the
refractory has visibly stopped glowing. Therefore, be very
careful when applying an
it responds only to flame.
CELL CONSTRUCTION
,The
is lead sulfide. The electrical resistance of lead sulfide decreases when exposed to infrared radiation. If a voltage is
applied across the lead sulfide photocell, current flows when
the
cell is exposed to infrared radiation.
When a flame is present, the lead sulfide photocell
detects the infrared radiation generated. The
duces
safeguard control. The amplified signal pulls in the flame
relay in the flame safeguard control to allow proper operation.
Because it is necessary for the detector to actually see the
flame, it is best to locate the detector as close to the flame as
physical arrangement, temperature, and other restrictions
permit. These restrictions are described in detail below.
DETERMINE THE LOCATION
Before beginning the actual installation, determine the
best location for mounting the flame detector. Carefully
consider the factors discussed in this section before establish-
ing the location.
TEMPERATURE
The
temperature increases. Up to
sensitivity is negligible, but temperatures above this point
must
low 125” F
unlimited. The quickest check for excessive temperature is
simply to grasp the detector-it should not be too hot to hold
comfortably in your bare hand.
Several methods are available for cooling the lead sulfide
photocell including ventilating the sight pipe and installing a
pipe nipple, seal-off adapter, and/or heat block between the
sight
page 8.
SIGHTING
The
portion of the flame being detected. The detector is com-
monly applied to detect both the gas pilot and main gas flame,
or thegaspilot and main oil
must be carefully aimed at the intersection of the pilot and
muinflame.
infrared
detection system to be sure
photosensitive material used in the infrared detector
Installation
C7015A
an
electric
sensitivity of the lead sulfide cell decreases as its
be avoided.
pipe
signal that is sent to the amplifier in the flame
125’
F
[52’ Cl,
Under normal temperature conditions (be-
[.52’ Cl,
the life of the lead sulfide cell should be
and the detector. Refer to Installing Accessories,
infrared detector must continually sight a stable
flame.ln
either case, the detector
A Swivel Mount (Honeywell part no.
pro-
the loss in
118367A)
4
C7015A
INSTALLATION
is available to facilitate flame sighting after the
mounted.
C7015A
is
pipe diameter is reduced, the effect is the same as adding an
orifice plate to the pipe as discussed below.
FIELD OF VIEW
A lead sulfide photocell, like other photocells, views an
area rather than a point. It is unable to pinpoint pilot flame
Fig. P-Methods of reducing
field-of-view.
locationaseasilyasaflamerod.Ifthedetectoristoproveonly
the pilot
jlame,
it must view only a part of
the
flame
so it can
detect the pilot only when it is large enough to successfully
light the main burner.
The
viewing area must not be so large
that a weak and wavering pilot flame could energize the
photocell and cause the flame relay to pull in.
The area viewed by the photocell depends on:
1.
Diameter of
the
opening in front of the cell.
2. Distance from the cell to the opening.
3. Distance from the opening to the area to be viewed.
Fig. 2 shows three ways of reducing the field of view,
assuming that the distance from the viewing opening to the
flame or refractory cannot be changed. These are (1) lengthening the sight pipe, (2) reducing the diameter of the sight
pipe, and (3) installing an orifice plate in front of the photocell. Combinations of these methods can
be
used.
CHANGING PIPE LENGTH OR SIZE (DIAMETER)
Theeffectorchangingthelengthofthesightpipeisshown
in Tables 2 and 3.
Changing the diameter of the sight pipe is not as simple as
changing the
ing accessories are all sized for
length,because
the
C7015A
3/4
mount and mount-
in. pipe. When the sight
AREA
g/j___------
\
UNRESTRICTED VIEW
3
BY LENGTHENING
THE SIGHT PIPE
C7015A
/M-
0
Detector
TABLE 2-DIAMETER OF AREA SIGHTED THROUGH VARIOUS LENGTHS OF
WITHOUT ORIFICE, IN IN.
Length of
Pip&.
7
8
6 12
1
1.5 2.3 3.1 3.9 4.7 5.5 6.3 7.1 1 8.0 8.7 9.6
1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 1 7.1 7.7 8.5
Distance From End of Pipe To Sighted Area-in.
18
1
24
1
30
1
36
I 42I
48
I 54I
TABLE 3-DIAMETER OF AREA SIGHTED THROUGH VARIOUS LENGTHS OF
WITHOUT ORIFICE. IN MM
Length of Distance From End of Pipe To Sighted Area-mm
Pipe-mm
25.4 160.0
152.4I 304.8I 457.2
1
302.3
1
447.0
I
609.6
1
589.3
I
762.0
1
1
721.4 876.3
914.4I1066.8
I
11219.2I1371.6 I 1524.0
Over
e
1016.0
3/4
-IN. PIPE
60
1
66
1
72
10.4
9.1-
3/4
IN. PIPE
11676.4
11828.8
60-2306-5
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