TM 5-3895-374-24-2FLAME SAFEGUARDScanner WiringCare should be taken to see that ignitor cables and scanner cables are routed away from one another onall installations. These cables, when crossed or run together, may interfere with the proper operation ofthe flame safeguard control.If you are experiencing erratic operation or inappropriate characters on the display during the trial forignition period, the cause is likely to be ignitor noise. Check for worn ignitor cable insulation, broken or cutinsulation or loose connectors at the electrode and transformers.INSTALLATION - UV SCANNERSCAUTION: The UV1, UV2, UV8, and 45UV3 ultra-violet name scanners and associated amplifiermodules are non-self-checking UV systems and should be applied only to burners that cycle often(e.g. a minimum of once per 12 hours) in order for the safety checking circuit to be exercised.(see Operation). If component checking is required during burner operation for constantly tiredburners, utilize the self-checking ultra-violet name scanners (45UV5) and associated amplifiermodule (EUVS4).Where possible, obtain the burner manufacturer’s instructions for mounting the scanner. This informationis available for most standard burners. The scanner mounting should comply with the following generalinstructions:1.Position the UV1, UV2 scanner within 18 inches of the flame to be monitored; the 45UV5 within 30inches, closer if possible.2.Select a scanner location that will remain within the ambient temperature limits of the UV Scanner. Ifcooling is required, use an insulating coupling (Fireye #35-9 for UV1, UV2 Scanners, 35-127-1 for45UV5) to reduce conducted heat.3.The UV1, UV2,45UV5 Scanners are designed to seal off the sight pipe up to 1 PSI pressure. Higherfurnace pressures should be sealed off. To seal off positive furnace pressure up to 100 PSI for UV1UV2 Scanners, install a quartz window coupling (#60-1257) For 45fUV5 Scanners, use #60-1100coupling. Add cooling air to reduce the scanner sight pipe temperature.4.Install the scanner on a standard NPT pipe (UV1 1/2" UV2: 3/8", 45UV5: 1-) whose position is rigidlyfixed. If the scanner mounting pipe sights through the refractory, do not extend it more than halfwaythrough. Swivel flanges are available if desired (#60-302 for UV1 UV2 Scanners, #60-1664-3for45UV5). The sight pipe must permit an unobstructed view of the pilot and/or main flame, and bothpilot and main flames must completely cover the scanner field of view.page 3 - 1057
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
