Table of Contents
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This bulletin is directed to the licensed boiler service technicians and professional combustion
engineers who are experienced in the installation and operation of Fireye flame safeguard
controls. Persons not experienced with Fireye flame safety products should contact the nearest
Fireye representative, or a qualified service group for assistance. IMPROPER INSTALLA-
TION OF THESE PRODUCTS MAY BE HAZARDOUS TO LIFE AND PROPERTY.
DESCRIPTION
Fireye Type 45UV5 scanners are self-checking, flame sensing devices. When powered by a compat-
ible, self-checking Fireye control, the scanners detect the presence or absence of flames which emit
ultraviolet radiation (UV). Typical fossil fuels which emit UV include natural gas, propane, meth-
ane, butane, kerosene, light petroleum distillates and diesel fuels. For burners firing steam-atomized
oil or pulverized coal, Fireye recommends the use of infrared (IR) scanners. Fireye offers a complete
line of infrared scanners best suited for these applications.
APPLICATION
When used with a Fireye amplifier, the 45UV5 scanner provides flame failure protection on single
and multi-burner industrial applications such as electric utility boilers, power boilers and large fur-
naces or incinerators. The 45UV5 scanner monitors the flame(s) of only one burner. The pilot and
main flames may be monitored individually (2 scanners) or in combination (1 scanner). When prop-
erly sighted, the scanner should discriminate between the burner being monitored and all other burn-
ers and any background flames.
Note: Scanner response is dependent on burner configuration as well as the turbulence and spectral
characteristics of the flames. Application assistance is available on request.
45UV5 SCANNER
MODELS:
1000, 1010,
1101, 1103
(including EX and CEX Models)
APPROVED
CU-22
MARCH 28, 2013
1
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Table of Contents
Related Manuals for Fireye 45UV5-1000
Summary of Contents for Fireye 45UV5-1000
- Page 1 (UV). Typical fossil fuels which emit UV include natural gas, propane, meth- ane, butane, kerosene, light petroleum distillates and diesel fuels. For burners firing steam-atomized oil or pulverized coal, Fireye recommends the use of infrared (IR) scanners. Fireye offers a complete line of infrared scanners best suited for these applications.
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Page 2: Principles Of Operation
Also included in the Type 45UV5 scanner is an electromagnetic shutter that permits a self-checking circuit within an associated Fireye control 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. -
Page 3: Specifications
3.75 lbs. (1.7kg) Electrical Power Requirement: 4 VA AC from associated Fireye control (see note below). Frequency: Frequency of scanner must match frequency of Fireye control and power line supply (See Table 1). Connection: 1/2 inch 14 NPSM tapping. Temperature Range: Maximum operating: 200F (93C) -
Page 4: Installation
3/8" NPT COMPRESSION-STYLE THREADED CABLE GLAND OPENING FOR (NOT FURNISHED) P/N 45UV5-1000CEX (Includes Model COOLING AIR 45UV5-1000 Scanner and p/n 35-128 3.56 NPT Mounting Flange). (90) P/N 45UV5-1101CEX (Includes Model 45UV5-1101 Scanner and p/n 35-130 BSP Mounting Flange). 1" THREADED 4.41... - Page 5 FIGURE 4. SINGLE BURNER SCANNER SIGHTING FLAME AIR REGISTER ENVELOPE BLADES SCANNER LINE OF SIGHT BURNER BURNER CENTER LINE THROAT PRIMARY BASE COMBUSTION ZONE FIGURE 5. SCANNER LOCATION VS. SECONDARY AIR ROTATION IGNITOR IGNITOR SCANNER SCANNER MAIN MAIN BURNER BURNER CCW ROTATION CW ROTATION...
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Page 6: Piping Arrangements
Purge air may be supplied through the 3/8" or 1" wye connection. Normally only one of the two connections is provided with purge air and the other connection is plugged. When a Fireye sealing coupling is used as shown in Figure 7, the 1" wye connection is used for the purge air (plug 3/8"... -
Page 7: Alignment And Adjustments
Signal readings referred to in this procedure are as displayed on a 0-3 1, 2 VDC Fireye flame signal meter. (P/N 38-54, 38-55, 38-56). If using analog bargraph meter (P/N 38-88), the flame will be properly sighted when there are 5-8 LEDs illuminated. - Page 8 Adjust scanner sighting to detect main burner flame. When sighting is correct (see Figure 6), the signal should read between 4 and 32 on a Flame Signal Meter, Fireye P/N 38-54 or 38-55, with- out extreme fluctuations in the signal reading.
- Page 9 METHOD 1: 45UV5 SCANNERS WITH ENGINEERING CODE 00-03 (built through mid- 2008) Sensitivity is adjusted by changing the position of the p/n 4-320-1 UV tube in its socket (Figure 10). FIGURE 10. 45UV5 -ENGINEERING CODE 00-03 UV TUBE POSITION SCANNER WITH COVER REMOVED TO REPLACE TUBE OR CHANGE SLOT POSITION OF 4-320-1 TUBE...
- Page 10 FIGURE 12. RECOMMENDED SPARE PARTS Tube (see note) Shutter & Bracket 61-2914-1 Shutter Bracket & lens (see note) Gasket 29-248 Lens Holder 82-95 Lens Retainer 16-103 Lens Assembly (see note) Note: Refer to MAINTENANCE section for detailed list of part numbers. FIGURE 13.
- Page 11 The scanner should ideally sight a target area of 4 to 25 square inches (25-250cm ) of the flame front. The flame front is a plane within the combustion space separating the region of unburned fuel from the burning fuel. For example, if a 1/2 inch diameter orifice is placed within a mounting swivel one foot from the scanner lens, and the swivel mount is located on the surface of a 4 foot deep wind- box, and if the range of stable flame is 5 feet beyond the windbox, the flame front target area is 19.6 square inches as shown in figure 16 below.
- Page 12 45UVFS1) is operated with a Type 45UV5 scanner. Refer to the “Control and Scanner Wiring” sec- tion, for further information. Fireye scanner cable Part No. 59-470 (4 conductors 18 AWG, 2 conduc- tors 22 AWG, common shield) or Part No. 59-471 (4 conductors 18 AWG, 4 conductors 22 AWG, common shield) is used for wiring connections between the scanner(s) and the control terminals.
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Page 13: Maintenance
CONTROL AND SCANNER WIRING All wiring to the scanner should be rated at 600 volts and 90 C. For runs less than 1000 feet Fireye recommends the use of scanner cable Part No. 59-470 (4 conductors 18 AWG, 2 conductors 22 AWG, common shield) or Part No. - Page 14 Group V Amplifiers (5000 Series) A blocking diode, Fireye part number 101-78, must be used when a solid state scanner is used in par- allel with a UV scanner. Connect the diode in series with the lead from terminal 14 in the UV scanner as shown in figures 20 and 21.
- Page 15 FIGURE 18. GROUP II CONNECTIONS SHIELD SHIELD NOTE: BLACK DIODE PART NO. 101-78. CONNECT AS SHOWN IN SIGNAL LEAD (14) OF U.V. SCAN- NER WHEN USING WITH SOLID STATE SCAN- SCANNER A NER. GREEN (45RM1, 2) WHITE BLACK SCANNER B DIODE GREEN (45UV5)
- Page 16 Self-checking units capable of operation with one or two scanners. 25SU3 Models: 5170, 5171, 5172, 5173. FIGURE 21. BLOCKING DIODE CONNECTIONS ANODE CATHODE FIREYE CONTROL UV SCANNER TERMINAL (NO. 14) TERMINAL NO. 14 FIGURE 22. GROUP V CONNECTIONS 45RM4 or...
- Page 17 FIGURE 23. GROUP VI CONNECTIONS 45UV5/45RM1/45RM2 45UV5/45RM1/45RM2 25SU3-2100 SCANNER SCANNER AMPLIFIER “A” “B” GREEN (SIGNAL) GREEN (SIGNAL) (COMMON) (COMMON) WHITE WHITE (SHUTTER) (SHUTTER) (POWER) BLACK BLACK (POWER) SHIELD SHIELD 19UVPS-2120 QUICK DISCONNECT QUICK DISCONNECT INTERNAL INTERNAL 19UVPS-2220 PINS (IF USED) PINS (IF USED) TERMINALS TERMINALS...
- Page 18 NOTE 2: For 25SU3 Model 4169T code 17 and earlier, use 45UV5 Model 1101 or 1103 (50HZ).For 25SU3 Model 4169T code 18 and later use 45UV5 Model 1000 or 1010 (60HZ). NOTE 3: With 25SU3-2000 series controls, the 120 VAC to the scanner must be provided by a separate Fireye power supply, or modernization adapter.
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Page 19: Troubleshooting
TROUBLESHOOTING The following steps should be performed if flame is not detected: NOTE: Wear protective filtered lenses when viewing flame. Check scanner wiring for breaks and proper connections. Look down the sight pipe. — Scanner should have an unrestricted view for all firing conditions. —... - Page 20 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.