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Distributed By: M&M Control Service, INC. 800-876-0036
Sales@mmcontrol.com
APPROVED
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.
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.
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
1
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Summary of Contents for Fireye 45UV5
- Page 1 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.
- Page 2 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.
- Page 3 ® Distributed By: M&M Control Service, INC. 800-876-0036 Sales@mmcontrol.com Housing Material: Cast aluminum Weight: 7 lbs. (3.2 kg) Housing Dimensions: See Fig. 1 Purge Air: 4 SCFM (113L/min) at 3/8 inch threaded housing inlet or 4 SCFM at 1 inch wye fitting in scanner sight pipe.
- Page 4 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"...
- Page 5 Excessive temperatures will shorten scanner life. FIGURE 5. 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: Keep scanner wiring as short as possible.
- Page 6 — 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.
- Page 7 — 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.
- Page 8 ® Distributed By: M&M Control Service, INC. 800-876-0036 Sales@mmcontrol.com 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.
- Page 9 — 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.
- Page 10 ® Distributed By: M&M Control Service, INC. 800-876-0036 Sales@mmcontrol.com FIGURE 7. FIGURE 8.
- Page 11 ® Distributed By: M&M Control Service, INC. 800-876-0036 Sales@mmcontrol.com FIGURE 9. FIGURE 10.
- Page 12 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.