Fireye 45UV5 Series Operating and installation instructions

1
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The information provided in this bulletin is directed to competent boiler and combustion service
technicians who are experienced in the installation and operation of Fireye Flame Safety equipment.
Persons not familiar with Fireye products should contact the nearest Fireye representative or other
qualified service group.
The 45UV5 scanners as well as all other Fireye scanners, are designed to be used exclusively with
the appropriate Fireye Flame Safeguard and Burner Management controls. The application of these
scanners to other than Fireye equipment should be reviewed for approval by Fireye.
%440-'%8-32
Fireye 45UV5 self-checking scanners are used to detect ultraviolet emissions from fossil fuel flames
such as natural gas, coke oven gas, propane, methane, butane, kerosene, light petroleum distillates
and diesel fuels.
These 45UV5 models are used only with the Flame-Monitor, BurnerLogix, D-Series, FlameWorx,
MicroM and some P-Series Fireye control models to provide flame safeguard and monitoring sys-
tems for supervised manual, semi-automatic and fully automatic single burner boilers, process ovens
and heaters.
46-2'-40)73*34)6%8-32
The 45UV5 scanners use a UV-eye detector. This detector is a sealed, gas filled, UV-sensitive tube
containing two electrodes connected to a source of AC voltage. When UV radiation of sufficient
energy falls upon the electrodes, electrons are released and the inter-electrode gas becomes conduc-
tive, resulting in an electric current flow from one electrode to the other. The current flow starts and
ends abruptly and is known as an “avalanche.”
A very intense source of UV radiation will produce several hundred avalanches or pulses per second.
With less radiation there will be fewer pulses per second. Upon total disappearance of flame, the
detector output ceases. Thus, the presence or absence of pulses is an indication of the presence or
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2
®
absence of flame; the frequency of the pulses is a measure of flame intensity. Pulses generated by the
scanner are transmitted to a compatible Fireye control via scanner wiring.
*)%896)7
The components are contained in a cast aluminum housing sealed with an oil-resistant gasket. The
quartz lens is a planoconvex design, resulting in increased sensitivity. Also included in the scanner is
an electromagnetic shutter that permits a self-checking circuit to verify that the scanner and signal
circuits are producing valid flame presence or absence information. During the shutter closed period,
the detector’s optical path is blocked from flame radiation, allowing the amplifier control to verify
the proper operation of the ultraviolet tube. While the shutter is open, flame presence or absence is
detected. The resultant scanner output (while flame is detected) is a continuous, periodically inter-
rupted, pulsed flame signal which is a prerequisite for energizing the associated Fireye control’s
Flame Relay.
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FIGURE 1.
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NOTE 1: Flame-Monitor, EUVS4; D-Series, 72DUVS1T, 72DUVS4; MicroM, MEUVS1, MEUVS4; FlameWorx; MBUVS-301D, MBUVS-
311D, BurnerLogix, YB110UVSC.
NOTE 2: Models 1006,1007,1008 and 1009 have shutter drive circuitry within the scanner. Models 1005and 1105have shutter drive circuitry
in compatible control.
NOTE 3: When using FlameWorx modules, MBUVS-301D and MBUV-311D, refer to bulletin FWX-1001for proper wiring terminals.
NOTE 4: Controls no longer manufactured.
NOTE 5: 45-1005and 45-1105are NOTFM approved for use with 25RU8-4580,25SU5-4013/4113-4113T/4116T-4116/4119.
NOTE 6: Extended temperature range applies to engineering code 3 and higher.
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3/8” -18 NPT OR
3/8” - 18 BSP-PL
45°
(51)
8 1/4" (210)
2"
(51)
MIN
CLEARANCE
PURGE AIRCONNECTION
4" (102)
111/16”
HEX.
(43)
1" - 11 1/2N.P.T.
(BSP-S1)
SIGHT PIPE
CONNECTION
HOUSINGMATERIAL:
ALUMINUM
REQUIRED
TOREMOVE
2
TYPE 45UV5
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3
®
Housing Material: Cast aluminum
Weight: 7lbs. (3.2kg)
Housing Dimensions: See Fig. 1
Purge Air: 4 SCFM (113L/min) at 3/8 inch threaded housing inlet or 4 SCFM at 1inch wye fitting
in scanner sight pipe. Temperatures near the upper limit of the scanner operating range and/or use
with dirty duels may require up to 15 SCFM (425 L/min.).
Optical Range:2200 to 2600 angstroms. No response to infrared radiation or visible light.
Optical Field of View: 1inch per foot (25.4mm/305mm)
Operating Range: 72 inches (1830mm) or less.
-278%00%8-32
The best scanner sighting results are obtained when the scanner is aimed so that its line of sight inter-
sects the burner center line at a slight angle, as shown in Figure 2. The area of maximum ultraviolet
radiation is near the base of the flame envelope. When only one scanner is used per burner, the inter-
section should be made so the line of sight or viewing angle can also see the pilot flame. Consider-
ation must be given to burner secondary air rotation (some burners have clockwise air rotation and
others counter-clockwise). Figure 3illustrates how scanner location is influenced by the pilot posi-
tions and secondary air circulation. Physical obstructions such as air register blades should not fall in
the line of sight of the scanner.
FIGURE 2.
1.
ANACCEPTABLESCANNER LOCATIONMUST ENSURETHE FOLLOWING:
— Reliable pilot flame detection.
— Reliable main flame detection.
— Rejection of pilot flame too short or in the wrong position to ignite the main flame reliably,
thus prohibiting main fuel admission.
NOTE:Reliable signals must beobtained at all air flows and furnace loads (ranges of fuel firing).
PRIMARY
COMBUSTION
AIRREGISTER
BLADES
SCANNER
LINEOF
SIGHT
BURNER
THROAT
FLAME
ENVELOPE
SINGLE BURNER SCANNER SIGHTING
BURNER
CENTER LINE
BASE
ZONE
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®
FIGURE 3.
2.
If combustion air enters the furnace with a rotational movement of sufficient velocity to deflect
pilot flame in direction of rotation, position the scanner 0to 30 degrees downstream of the pilot
burner and close to the periphery of the throat where the ultraviolet radiation is at a maximum.
(See Figures 2and 3).
3. Having determined an appropriate location for the sight tube, cut a clearance hole for a 2inch
pipe through the burner plate. If register vanes interfere with the desired line of sight, the inter-
fering vane(s) should be trimmed to assure an unobstructed viewing path at all firing levels, see
Figure 4.
4. Mount scanner sight pipe by either:
— Centering a Fireye No. 60-1664-3(NPT) or 60-1664-4 (BSP) swivel mount over the hole
and installing the sight pipe on the swivel mount,
or
— Inserting the end of the sight pipe into the hole, aligning the pipe to the desired viewing
angle and tack welding. (Welding must be adequate to temporarily support the weight of the
installed scanner). The sight pipe should be arranged to slant downward so that the dirt and
dust will not collect in it.
FIGURE 4.
5.
When a satisfactory sighting position has been confirmed by operational test, (see section on
alignment), the sight pipe should either be firmly welded in place or, if the swivel mount is used,
the base position should be secured by tightening the three hex head cap screw located on the
swivel mount ring. In certain older style swivel mounts, tack welding may be required.
6. Excessive flame signal can affect flame discrimination and prevent the control connected to the
scanner from performing properly. To reduce the signal level of the tube, or improve flame dis-
crimination, orifices may be installed to decrease the scanner’s field of view and reduce its sen-
sitivity. Installation of the orifice disk is shown in Figure 6.
7. The scanner viewing window must be kept free of contaminants (oil, smoke, soot, dirt) and the
scanner temperature must not exceed its maximum rating. Both requirements will be satisfied by
continuous injection of purge air.
The scanner mounting may be made with provision for purge air through the 3/8” opening as shown
in Figure 5, Item A or C, or through a 1" tee/wye connection as shown in Figure 5, Item B. Normally
only one of the two connections is provided with purge air and the other is plugged. When a Fireye
union is used as shown in Figure 5, the 1" tee/wye connection is used for the purge air (plug 3/8”
opening).
IGNITOR
SCANNER
MAIN BURNER
CCW ROTATION
SCANNER LOCATIONVS. SECONDARY AIR ROTATION
IGNITOR
SCANNER
MAIN
CCW ROTATION
BURNER
BUT THISNOT THIS NOT THIS
FLAME MUST COMPLETELY COVER SIGHT OPENING
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®
Under normal temperature conditions, with clean burning fuels and moderate ambient temperature
conditions, purge air flow of approximately 4 SCFM (113 L/min) is generally adequate. A 0.1psig
positive pressure difference between the atmosphere and boiler pressure measured at right angle to the
purge air flow, should result in a purge air flow of 4 SCFM. Up to 15 SCFM (425 L/min) may be
required for fuels that may produce high levels of smoke of soot or for hot environments to maintain
scanner internal temperature within specifications.
NOTE:The maximum viewing field of the lens is one inch per foot.Do not use more than one foot of
one inch sight pipe.Increase sight pipe diameter one inch for everyadditional foot of sight pipe
length used,to avoid restricting the scanner’sfield of view.Temperature in the scanner housing
should not exceed those temperature limits listed in the specifications.Excessivetemperatures will
shorten scanner life.
FIGURE 5.
7'%22)6;-6-2+
All FIREYE controls are protected against short-circuited scanner input terminals. Following recom-
mendations apply for scanner-control wiring:The following recommendations apply for scanner con-
trol wiring:
d Keep scanner wiring as short as possible.
d Use wires rated for scanner voltage and its ambient conditions (temperature, humidity, oil resis-
tant, flame retardant, etc.)
d Do not run scanner wires in the same conduit as other electrical wires.
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®
d Avoid wire loops and poor groundings.
d Keep high voltage ignition wires well away from scanner wires.
The 45UV5 self-check scanner has four 6foot (1800mm) leads:
9:
Two black leads which power the shutter from the associated control and two red leads which drive
the UV tube and carry the flame signal to the control amplifier.
9:
Two black leads which power the shutter via L1& L2and two red leads which drive the UV tube and
carry the flame signal to S1& S2on the control.
If it is necessary to extend the scanner wiring, the following instructions apply:
Scanner wires should be installed.in a separate conduit. The wires from several scanners may be
installed in a common conduit.
9:
1. Selection of wire
—Use#14, 16, or 18 wire with 75 C, 600 volt insulation for up to 100 foot distances (signal
loss approximately 20% at 100 feet).
— Asbestos insulated wire should be avoided.
— Multiconductor cable is not recommended without prior factory approval.
—Extended Scanner Wiring. For extended scanner wiring up to 1500 feet, and for shorter
lengths to reduce signal loss, use a shielded wire (Belden 8254-RG62U) coaxial cable, or
equal for each red wire of the 45UV5. The ends of the shielding must be taped individually
on both ends and not grounded.
For multiple burner installations:
2. Distances are decreased when more than one set of scanner leads are installed in a common con-
duit. For example, the maximum distance for 2scanners is 750feet and for 3or more scanners
the distance decreases to 500 feet.
3. High voltage ignition wiring should not be installed in the same conduit with flame detector
wires.
WARNING:DO NOT CONNECT 45UV5 SCANNERS IN PARALLEL
16-24VDC TOCONTROL
SHUTTER
45UV5-1005, 1105
UV TUBE
560 VAC (RED)
BLACK L1, L2
SHUTTER
45UV5-1006, 1007, 1008, 1009
UV TUBE
RED S1. S2
ON CONTROL
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7
®
45UV5-1005, 1105
1. Up to 25 foot conduit run.
—Use#18AWG or heavier, 600V 90C minimum rated wire, installed in conduit.
2. Over 25 to 300 feet maximum:
—Use#18AWG or heavier, 600v, 75C rated wire for the two black leads (shutter).
—Extended Scanner Wiring. For extended scanner wiring up to 1500 feet, and for shorter
lengths to reduce signal loss, use a shielded wire (Belden 8254-RG62U) coaxial cable, or
equal for each red wire of the 45UV5. The ends of the shielding must be taped individually
on both ends and not grounded.
For multiple burner installations:
3. Distances are decreased when more than one set of scanner leads are installed in a common con-
duit. For example, the maximum distance for 2scanners is 750feet and for 3or more scanners
the distance decreases to 500 feet.
4. High voltage ignition wiring should not be installed in the same conduit with flame detector
wires.
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The following procedures are recommended to ensure optimum flame detection and discrimination.
Flame discrimination is the ability to see only one burner or one pilot with other burners or pilots
operating nearby. These procedures should be used whenever parts are replaced, when the scanner
has been moved, when the flame shape is altered (additional fuels, new burners, burner/register mod-
ifications) as well as on all new installations.
4MPSX*PEQI7GERRIV
1. Apply power to scanner and associated control.
2. Start pilot.
3. Adjust scanner sighting to detect pilot flame in the manner shown in Figure 4.
4. When flame is properly sighted, the flame signal should correspond to the acceptable ranges
indicated in the appropriate bulletin for each compatible FIREYEcontrol. If readings fluctuate
widely, readjust scanner sighting until highest, steadiest reading is obtained.
5. When the proper signal reading has been obtained, make sure that the scanner and the associated
control do not respond to the ignition spark. This is accomplished by cutting off the fuel to the
pilot and attempting to start the pilot using the spark igniter. If the system responds to the spark,
the sighting should be realigned.
1EMR*PEQI7GERRIV
1. Apply power to scanner and associated control.
2. Start pilot.
3. Adjust scanner sighting so that ignition spark and pilot flame are not detected. Test should be
conducted with maximum pilot flame and with both minimum and maximum airflow.
4. Start main burner.
5. Adjust scanner sighting to detect main burner flame. When sighting is correct (see above), the
signal should be read in the acceptable range for the control in use, without extreme fluctuations
6. When proper signal is established, manually close off the main burner fuel supply. When burner
flame becomes unstable or is extinguished, the control should register a “flame failure” condi-
tion.
7. Start an adjacent burner and vary its firing rate under normal airflow conditions. Make certain
that the main flame scanner on the burner not in service does not respond to adjacent burner
flame. Readjust sighting if necessary.
CAUTION:Minimum pilot is the minimum flame required to satisfactorily ignite the main
burner. Be sure to test for reliable signals under maximum airflow conditions when the pilot
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8
®
7;-:)013928
The scanner swivel mount Part No. 60-1664-4 (BSP) 60-1664-3(NPT) is used to adjust the scanner
sighting angle after the scanner has been installed. The swivel mount is used as indicated the figures in
this document.
3VMJMGIW
The Orifice restricts the field of view (target area), reduces air flow, maintains air flow, maintain air
block, and increases discrimination between flame and background radiation. The orifice is secured
within the ball of a swivel mount with an orifice retainer or the orifice can be placed within a one inch
union (not provided).
The scanner should ideally sight a target area of 4 to 25 square inches (25-150cm2) of the flame front.
The flame front is a plane within the combustion space separating the region of unburned fuel from the
burning fuel.
Note:There isan inverserelationshipbetween discrimination and sensitivity.
,IEX-RWYPEXMR 2MTTPI
The heat insulating nipple Part No. 35-127-3(BSP); 35-127-1(NPT) prevents heat transfer from the
hot sight pipe to the scanner head.
7IEPMR 9RMSR[MXL5YEVX^;MRHS[
The sealing union (60-1199) is used whenever a union or seal is required for scanner piping. The size is
one inch US standard taper pipe thread (1" NPT). The sealing union has a quartz window to block off
the scanner from the furnace pressure and heat. When the sealing union is used, the 1" tee/wye is used
for the purge air inlet. Be sure the quartz window is properly seated to seal off the scanner. Do not over-
tighten union collar because damage to the window may result. For best results, hand tighten union col-
lar.
FIGURE 6.
1%-28)2%2')
1. The control and scanner should be powered at all times (except for repair, cleaning or replacement)
to reduce any harmful effects of atmospheric humidity.
%08)62%8)496+)
%-679440=
r92-32 r409+
36496+)
%-679440=
*-)0(
3*
:-);
r7;-:)013928
*-)0(3*:-);
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36-*-') 36-*-')
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9
®
2. The scanner and sight pipe must be kept clean to prevent overheating and assure optical quali-
ties.
3. When replacing or cleaning the UV tube, note the position of the tube pins. They are mounted
on a rectangular base so that the tube can only be inserted into the socket with the electrodes
broadside to the shutter window.
CAUTION:DISCONNECT ORSHUT OFF ELECTRIC POWER WHEN WORKING ON
SCANNER.
4. Clean the quartz lens and tube with glass detergent or glass cleaning agents which contain no
abrasives. After cleaning, remove all cleaning films with a soft lint-free cloth. (Some cleaning
films may reduce or filter UV.)
5. Use original FIREYEparts to maintain optimum operation. Recommended spare parts:
4EVX2YQFIV (IWGVMTXMSR
4-314-1`UVTube
61-2913Shutter Assembly with Lens
29-248Flange Gasket
82-95LensHolder
46-38 Lens
92-48Quartz window (Part of Union 60-1199)
FIREYEoriginal equipment factory replacement parts are available at various sub-assembly levels.
8639&0)7,338-2+8,)9:7)0*',)'/-2+7'%22)6
The UV self-checking scanner is a fail-safe device. If you are having a problem, make sure that you
are supplying proper voltage to the scanner tube and shutter.
— The two red leads to the tube from the control should be approximately 560VA C .
— The two black leads from the control to the shutter should be a pulsating 16-24 volt signal
for the 45UV5-1005 and 45UV5-1105 or line voltage for other 45UV5 models. If A or B is a
problem, replace the control or control amplifier. There are two failure modes of the UV
self-check scanner.
1. UV tube failure
2. Shutter failure.
Either of these failures will prevent the burner from operating.
-*8,)89&),%7*%-0)(
1. In a semi-automatic FIREYEcontrol (70D40or FlameWorx) the system will not start if the tube
indicates flame when no flame is present. (Safe start check). Solution — replace UV tube only.
2. In an automatic FIREYEcontrol 70D10, 70D20, 70D30, FLAME-MONITOR and MicroM
control, the control will lockout on safety (during the prepurge) if the tube indicates flame with
no flame present (Safe start check) “False Flame Purge” shown on FLAME-MONITOR control.
Solution — Replace UV tube only.
3. In all systems if the scanner does not indicate the presence of flame (DC voltage on flame
meter) with the scanner looking at the pilot flame or a source of ultra-violet radiation (lighter or
propane torch) replace the UV tube.
-*8,)7,988)6,%7*%-0)(
In all systems during the pilot trial-for-ignition period the system will shut down and lockout if the
shutter has failed to close or open. Solution — save UV tube — replace scanner. Visual checks can
be made to detect shutter malfunction.
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10
®
4%68291&)67%2(%'')7736-)7
FIGURE 7.
FIGURE 8.
9:7'%22)6
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&7,988)6
'7,988)60)27
(+%7/)8
)0)27,30()6
*+6311)8
+0)27%77)1&0=
,59%68>7'%22)60)27
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11
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FIGURE 9.
FIGURE 10.
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%  3VMJMGIr(MEQIXIV
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'  3VMJMGIr(MEQIXIV
(  3VMJMGIr(MEQIXIV
)  3VMJMGIr(MEQIXIV
*  3VMJMGIr(MEQIXIV
+  3VMJMGIr(MEQIXIV
,  3VMJMGIr(MEQIXIV
-  3VMJMGIr(MEQIXIV
 r;]I
 r'P WI2MTTPI
%8,639+,-36-*-')7(-%83(-%
.36-*-')6)8%-2)6
/248,)%8-2790%8-2+2-440)
&74,)%8-2790%8-2+2-440)
059%68>;-2(3;J V7IEPMRK
9RM RWL [RMR*MK
2(-3()
%2487;-:)013928
&747;-:)013928
&2487)%0-2+92-32;59%68>;-2(3;
Distributed By: M&M Control Service, INC. 800-876-0036 [email protected]

12
®
*-6)=) 7'
1ERGLIWXIV6 EH .90=
(IVV]2I[,EQTWLMVI97% 7YTIVWIHIW1EVGL
[[[JMVI]IG Q
®
238-')
When Fireye products are combined with equipment manufactured by others and/or integrated into
systems designed or manufactured by others, the Fireye warranty, as stated in its General Terms and
Conditions of Sale, pertains only to the Fireye products and not to any other equipment or to the
combined system or its overall performance.
;%66%28-)7
FIREYEguarantees for one year fromthe date of installation or 18 monthsfromdate of manufac-
ture of its products to replace, or, at its option, to repair any product or part thereof (except lamps,
electronic tubes and photocells) which is found defective in material or workmanship or which oth-
erwise fails to conform to the description of the product on the face of its sales order. THEFORE-
GOING IS IN LIEU OFALL OTHER WARRANTIES AND FIREYEMAKES NO
WARRANTYOFMERCHANTABILITYORANYOTHER WARRANTY,EXPRESS OR
IMPLIED. Except as specifically stated in these general terms and conditions of sale, remedies
with respect to any product or part number manufactured or sold by Fireye shall be limited exclu-
sively to the right to replacement or repair as above provided. In no event shall Fireye be liable for
consequential or special damages of any nature that may arise in connection with such product or
part.
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