MAXON APX Specifications
Contents
1. A mea Ww G Fo L WE B C Hd oe 2 1 LAU 1 Gasinlet bay 2 Pilot gas connection 1 2 lj 3 Combustion air test connection 1 4 i 4 Gas test connection 1 4 H n p 5 T ue d G Burner support custom made B 3 k i A A H 2 6 Burner mounting plug custom made j I i drawing shows typical lay out cit i T pi 1 E 7 Mounting plate 5 MA to be used in case of external ignitor 5 J A Tp x and flame scanner option T Cc amp y IT j SS Rm qp e x i QT m i Lu amp Lo O0 J x fy see A Z B B C C D Dimensions in in unless stated otherwise Burner size 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 5 5 6 6 5 7 7 5 L 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 Gas inlet 1 1 1 1 1 2 1 1 2 1 1 2 11 2 2 2 2 2 21 2 2 1 2 2 1 2 2 1 2 2 1 2 A 16 54 16 54 16 54 16 54 16 54 16 54 16 54 16 54 16 54 16 54 16 54 16 54 16 54 20 47 20 47 B 24 41 24 41 28 35 28 35 28 35 28 35 36 22 36 22 36 22 36 22 36 22 36 22 36 22 44 09 44 09 J 2 11 81 11 81 11 81 11 81 11 81 11 81 11 81 11 81 11 81 11 81 11 81 11 81 11 81 15 75 15 75 H 2 19 69 19 69 23 62 23 62 23 62 23 62 31 50 31 50 31 50 31 50 31 50 31 50 31 50 39 372. E i 5 08 1 ft to 15 ft external blower mA r A BS A A B CEE e EH E B LE LL L Eno oue c H H He EEH ESO N t L mee is B B E 1 Gasinlet 1 1 2 NPT gg A pa g 2 Air inlet shutter ID o EFF HEE 2 6 3 Test connection E L C a C l E 4 Mounting surface a L 5 Gas inlet flange B B 1 1 2 NPT i K i E H EEH B E E c gu Du Ima L www MAxXONCGORP COM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 22 Duct Burners APX Burner E i 5 08 Dimensions in inches unless stated otherwise d sze 4 Lgs 2 ee S amp S fae 4 eB le Fe ce oe ae HH 32 35 44 18 sketch Alal Aala A PST A A clclelc D A 77 7 717 48 18 35 36 36 36 18 18 18 21 B eile s ibm ae Ee m om on ee log E 29 29 54 54 54 63 C le elsedqelselelLlsete sE d4 amp 29 ea 29 8 B4 az 47 56 E l xl slslIsere lsis e s sis se sis selse s F dhelduw qed H e1pse 1 u qx dw ui lel G 65 65 65 65 le5 65 65 65 6 5 65 65 65 65 6 amp 5 65 le5 11 1 1 H sx x9 pomo mw rw 1 w3 px p lrsel 2 2 2 les les J 66 66 66 66 le6 6 6 66 6 6 6 6 6 6 66 66 6 6 6
3. 1 Ifan APX burner is used with constant combustion air select the required combustion air pressure from above table for required maximum capacity per foot 2 sg specific gravity relative density to air density air 0 0763 Ibs ft st 3 34120 Btu h is the minimum capacity for natural gas 1 control valve per burner SP drillings see 4 The maximum capacity is set at 1 36 MBtu h Overfiring in fresh air heating application is possible up to 20 For low oxygen recirculating applications we advise to limit the max capacity per foot to 1 MBtu h with n 1 3 Pressure differential between burner test connection and combustion chamber for natural gas to be used for burner commissioning SP burner Standard Pressure drillings Actual pressure differential at burner gas inlet is 5 higher Pressure differential between burner test connection and combustion chamber for natural gas to be used for burner commissioning LP burner Low Pressure drillings Actual pressure differential at burner gas inlet is 5 higher 6 Differential combustion air pressure between burner air test connection and combustion chamber for commissioning 7 Typical differential combustion air pressure for 5 ft APX to be used for blower selection 8 Advised combustion air flow and air factor n for best burner performance For recirculating air heating with low oxygen advised air factor is 20 higher n gt 1 1 for fresh air fir
4. 4 21 9 27 E i 5 08 MAXON 4 21 9 28 7 E i 5 08 Duct Burners APX Burner Slot mounting tabs These support tabs can be mounted at various locations on the burner body at 6 in spacings They are suggested to be used for burners longer than 4 ft Burners with a maximum length of 4 ft can be supported using the fixation holes in the endplates A 99 a an X s BE Y Dimensions in in unless stated otherwise A B D E 2 3 4 2 3 0 4 0 4 Universal mounting bracket These brackets can be used to support burners in horizontal orientation use 1 bracket per 5 ft burner and in vertical orientations use 1 bracket per 3 ft burner and install brackets on both sides of the burner pat A i A A of Fu a C ET 1 Mounting surface to be attached to burner uj Dimensions in in unless stated otherwise A B C D E F 7 5 6 5 3 75 1 4 1 0 4 W WwW M AX OUO N COR P C 0M A COMBUSTION SYSTEMS FOR INDUSTRY MAXONI MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved Endplates FIG 1 1 Spark ignitor connection M10x1 FIGI 2 UV flame rod connection 1 NPT 3 Pilot gas connection 3 4 16 UNF 4 Flame rod 5 Mounting su
5. i o o o o i 1 AL o r Les 9 es es e EINE 6 pe 2 o 1 Gasinlet 1 1 2 NPT a fp jb fe 4 __ 1 2 Air inlet shutter 4 T MT oN we oN ve o 3 Testconnection oa g p 4 Mounting surface Tf e E rw e Ed m ey o Mk t 7 G 1 ALL o o o K A Li L el x G co 4 LLY I s I A W WW M AX OU N COR P G 0M COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 24 E i 5 08 Duct Burners APX Burner Dimensions in in unless stated otherwise Burner size A B C D E F G H l J K L M N gr 1x1 22 12 18 5 8 48 16 24 6 45 12 24 8 06 6 4 22 14 12 044 2 5 41 1x1 5 28 12 24 5 8 48 16 24 6 45 12 24 8 06 6 4 22 14 18 044 2 5 48 1x2 34 12 30 5 8 48 16 24 6 45 12 24 8 06 6 4 22 14 24 044 2 5 54 1x2 5 40 12 36 5 8 48 16 24 6 45 12 24 8 06 6 4 22 14 30 044 2 5 61 2x1 22 12 18 5 8 48 28 24 6 45 24 24 8 06 12 6 4 22 14 12 044 742 68 2x1 5 28 12 24 5 8 48 28 24 6 45 24 24 8 06 12 6 4 22 14 18 0 44 742 75 2x2 34 12 30 5 8 48 28 24 6 45 24 24 8 06 12 6 4 22 14 24 0 44 7 12 82 2x2 5 40 12 36 5
6. parallel velocity Min process air velocity 1 6 ft s 6 ft s Max process air velocity 26 65 ft s 2 20 30 ft s 3 Min process air oxygen level 4 3 6 Vol 6 3 6 Vol 1 A minimum parallel process flow for in duct burners and cross process flow for wall mounted burners is required Burners shall not fire without process flow Advised minimum velocity shall be above 6 ft s 2 Optimal burner performance of in duct APX burners will be realized with a uniform process air velocity around the flame between 6 ft s and 26 ft s Higher process air velocities are possible up to 65 ft s however may influence emissions of CO see page 4 21 9 19 3 Higher cross velocities up to 9 m s will quench the flame and affect emissions CO The use of a flame protection shield is advised to limit CO Contact MAXON for more information 4 Depending on temperature capacity and excess air MAXON APX burners can fire in almost inert process air environment Process back pressures Max process back pressure on wall mounted APX n aliad dd Max process back pressure i in duct APX 2 40 wc to 40 wc Max process back pressure in duct APX slide in unit pj ae Nees 1 Wall mounted burners can only fire in ducts under suction or in balanced atmospheres Ducts in overpressure should be avoided 2 All in duct burners except the slide in unit design Special considerat
7. 8 48 28 24 6 45 24 24 8 06 12 6 4 22 14 30 0 44 7 12 88 3x1 22 12 18 5 8 48 40 24 6 45 36 24 8 06 18 6 4 22 14 12 0 44 742 95 3x1 5 28 12 24 5 8 48 40 24 6 45 36 24 8 06 18 6 4 22 14 18 0 44 7 12 102 3x2 34 12 30 5 8 48 40 24 6 45 36 24 8 06 18 6 4 22 14 24 0 44 7 12 109 3x2 5 40 12 36 5 8 48 40 24 6 45 36 24 8 06 18 6 4 22 14 30 0 44 7 12 116 3x3 5 52 12 48 5 8 48 40 24 6 45 36 24 8 06 18 6 4 22 14 42 0 44 7 12 129 WW WwW MAXON CORP COM A COMBUSTION SYSTEMS FOR INDUSTRY MAXONI MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved Duct burners APX Burner 47219 25 E i 5 08 APX H Style burners slot fired mounting A am La B C E i o o o o L i 9 Te 2 lcs P amp O P ot 1 Gas inlet 1 1 2 NPT EMEN 2 Airinlet shutter oe pe E o 3 Testconnection alu x 4 joe I MG EU ME c NND 4 Mounting surface
8. 1 A A JE S a LF Dimensions in in unless stated otherwise A B C D E F G H J eK gL M Weight Ibs 3 74 5 51 2 48 4 72 0 69 0 89 0 47 0 31 0 39 0 20 P 9 P 9 0 49 2 20 W W W MAX O0 NC OR P C UM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 36 E i 5 08 Blowers and accessories Duct Burners APX Burner 1 Blower li 2 Filter Pos B 3 Silencer OQ ul 5 o5 55 5 2 s LLL E ME db LL _ a a 1 Y Dimensions in in unless stated otherwise a size A B C D E ae lieve 1 12 7 11 5 15 2 14 4 20 3 7 0 11 8 1 5 12 7 11 5 15 2 14 4 20 3 7 0 11 8 2 16 4 11 5 19 0 14 6 20 5 7 0 11 8 2 5 15 16 4 11 5 19 0 14 6 27 8 9 0 16 4 Adjustable pilot gas orifice UJ Gas outlet 3 8 NPT Gas inlet 3 8 NPT Protection cap remove to access flow adjustment screw HEX 3 8 mm 1 5in 8 44 in 0 75 in MAXON W WW MAX ON CO O RP COM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Co
9. 15 E i 5 08 APX endplate accessories included in the endplate assembly Accessories included in the endplate sets except not when explicitly written Endplate set Flame rod UV tube t Spark ignitor Adjustable orifice Gas test port FIG1 FR 4 FR APX NA SI APX 10mm AO 3 8 NPT NA FIG1 UV 4 NA NA SI APX 10mm AO 3 8 NPT NA FIG2 FR FR APX NA NA NA 1 8 NPT FIG2 SG NA NA NA NA 1 8 NPT FIG2 PLN NA NA NA NA 1 8 NPT FIG3 SI NA NA SI APX 14mm L NA 1 8 NPT FIG4 FR FR APX NA SI APX 1 2 14 AO 3 8 NPT NA FIG4 UV NA UVT SI APX 1 2 14 AO 3 8 NPT NA FIG5 FR FR APX NA SI APX 14mm S AO 3 8 NPT 1 8 NPT FIG5 UV NA UVT 2 g SI APX 14mm S AO 3 8 NPT 1 8 NPT FIG6 FR 5 2 5 NA 3 5 AO 3 8 NPT 1 8 NPT FIG6 UV 5 NA UVT2 m 3 5 AO 3 8 NPT 1 8 NPT NP EP SI FR UV 6 7 NA NA SI APX 14mm L NA 1 8 NPT NP EP PLN 7 NA NA NA NA NA 1 Only applicable for US supplies spark excitation 2 Select correct flame rod from table Feed thru flame rods on page 4 21 9 18 3 Select correct spark ignitor from table Feed thru spark ignitors on page 4 21 9 17 4 These endplate sets include a pilot nozzle and air shutter to adjust the bypass pilot air 5 Feed thru endplate sets FIG6 do not include SI FR For fresh air applications standard spark ignitor SI APX 4 in and standard flame rod FR APX can be selected Both the standard SI FR or the feed thru SI FR hav
10. 4 2060 300 000 30 40 3 3 13 16 5 9 13 000 000 4 2240 325 000 30 40 3 3 14 16 5 9 14 000 000 4 2400 350 000 30 40 3 3 15 16 5 9 15 000 000 4 2600 375 000 30 40 3 3 1 2 3 4 5 6 7 8 9 WOW WwW Not for EC market see Available APX versions and options page 4 21 9 12 and page 4 21 9 13 Burner data displayed assume blower s operating on 60 Hz electrical supply Max burner capacity will be reduced by 17 if operated on 50 Hz Fuel and air pressure should be reduced by 30 while motor power will reduce 40 with 50 Hz operation sg specific gravity relative density to air density air 0 0763 Ibs ft st Burner size corresponds with the straight burner length in ft Pressure differential between burner test connection and combustion chamber for natural gas to be used for burner commissioning LP burner Low Pressure drillings Actual pressure differential at burner gas inlet is 5 higher Fresh air firing When firing in low oxygen environment max capacity should be downrated Differential combustion air pressure between burner air test connection and combustion chamber for commissioning When firing in balanced combustion chamber Expected flame length in fresh air firing Flame length may vary in function of process air flow distribution velocity temperature oxygen level etc Contact MAXON for more information M AX ON C OR P COMBUSTION SYSTEMS FOR INDUSTRY C
11. 6 Flame development Tables page 4 21 9 9 page 4 21 9 10 and page 4 21 9 11 are giving typical flame length of MAXON APX burners for the shown combustion air amount burner capacity and application fresh air versus recirculating air Note that flame length is influenced by different factors such as Excess air factor higher excess air will reduce flame length Process air velocity higher velocity will reduce flame length Type of fuel butane flames will typically be longer than natural gas flames Burner length shorter burners will give shorter flame lengths B6 Air distribution at the burner inlets see Piping below etc In case the burner is fired with low excess air in low oxygen environment flame may become quite radiant Take this into consideration for the design of combustion chambers choice of materials distance to the wall expansion allowance Contact MAXON for more information COMBUSTION SYSTEMS FOR INDUSTRY MAXONI MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved W WwW M AX OUO NC OR P C OM 4 21 9 19 E Duct burners APX Burner E i 5 08 Piping Except for the slide in units where the air and gas distribution is incorporated into the burner design special attention should be paid to the execution of air and gas manifolds feeding the air and gas inlet s of all the other APX burner versio
12. AN es i 2 UV flame rod connection 1 4 NPT B 6 6 3 Pilot gas connection 3 8 NPT 4 Flame rod 5 Mounting surface 6 Pilot gas adjusting needle valve o Dimensions in in unless stated otherwise A B C D E t F 1 G H d K L P 1 1 1 8 3 6 0 4 10 7 7 9 5 0 2 5 3 5 4 0 6 5 0 8 1 Clearance for flame rod removal WWW MAXONCORP MAXON COMBUSTION SYSTEMS FOR INDUSTRY C OM MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved FIGS 1 Spark ignitor connection M14x1 25 2 UV flame rod connection 1 4 NPT 3 Pilot gas connection 3 8 NPT 4 Flame rod i 5 Mounting surface T 6 Gas test connection 1 8 NPT Duct burners APX Burner Dimensions in in unless stated otherwise A B CD JEm Frm G H J K L M 1 1 1 8 3 6 0 4 93 69 5 2 5 15 2 6 5 0 8 1 4 1 5 0 5 0 6 1 Clearance for flame rod removal FIG 6 1 Sparkignitor connection 3 4 10UNC TN 2 UV flame rod connection 3 4 10UNC 3 Pilot gas or local flame rod connection 1 4 NPT 4 Flame rod 5 Mounting surface 6 Gastest connection 1 8 NPT Dimensions in in unless stated otherwise A B C D EmiFi G H J K L M N R S
13. W W W M AX ON CO O R P C O10M 4 21 9 16 F E 5 08 Duct Burners APX Burner Modulated or constant combustion air All MAXON APX burners can operate with constant or fixed air flow as well as with modulated air flow At constant air flow the required differential combustion air pressure refer to table on page 4 21 9 9 page 4 21 9 10 and page 4 21 9 11 is set by a fixed air damper burner air inlet or fan and the combustion air flow through the burner is constant for all burner firing rates always maximum air flow At modulating air flow an additional air control valve is adjusting the combustion air in function of burner capacity The choice whether constant or modulated air flow should be selected highly depends on the application and the desired emissions on CO and NO Refer to Emissions on page 4 21 9 19 for more details Ratio control In case the burner is operated with modulated air flow best performance is realized when the burner is adjusted with ratio s as indicated in the table on page 4 21 9 9 and page 4 21 9 10 This can be achieved with MAXON MICRO RATIO valves or SMARTLINK MRV Changes of combustion air temperature system back pressure variations and other parameters could influence gas air ratio if the control system is not designed for compensation Contact MAXON for more information Process air flow velocity and oxygen content WALL MOUNTED cross velocity IN DUCT
14. air firing 8 scfh 10300 10300 10300 10300 10300 14035 2n Optimal combustion air factor for fresh air firing 8 n 33 6 6 3 3 1 6 Tei 1 1 Flame length fresh air firing 9 ft NA 0 98 1 6 2 7 2 7 3 6 3 6 4 6 4 6 5 6 9 Differential combustion air pressure ey 8 for recirculating air firing low O5 n gt 1 3 6 we s s E E 5 35 10 ES GE z 2 Differential combustion air pressure at blower 5 outlet for recirculating air firing low Os n gt 1 3 u we 6 6 6 6 pss 15 E Optimal combustion air flow for z 2 recirculating air firing low Os n gt 1 3 8 scfh 10300 10300 10300 10300 12360 NA o 2 Optimal combustion air factor for 2 recirculating air firing low Os n gt 1 3 8 n 33 6 6 3 3 1 he NA 5 9 Flame length ra 3 7 5 5 recirculating air firing low Os n gt 1 3 Pl NA 1 6 2 6 45 6 582 92 10 11 5 1 If an APX is used with constant combustion air select the required combustion air pressure from above table for required maximum capacity per foot 2 sg specific gravity relative density to air density air 0 0763 Ibs ft st 3 68303 Btu h is the minimum capacity for propane butane firing 1 control valve per burner SP drillings see 4 The maximum capacity is set at 1 36 MBtu h Overfiring in fresh air heating application is possible up to 20 96 For low oxygen recirculating applications we advise to limit the max capaci
15. incl SI FR or provision for UV scanner FIG5 UV no yes f FIG6 FR no yes In duct feed through raw gas pilot i3 endplate set FIG6 UV no yes External mounting plate kit for S external UV FR and external SI EMPSEXT ae yes Re External mounting plate kit for RSs external UV FR and external SI EMPSINT ng yas So In duct endplate set for direct ignition 4 is incl SI FR and provision for UV NP EP SIFR UV di yes amp In duct plain endplate set 5 NP EP PLN no yes Y 1 Refer to tables on page 4 21 9 17 and page 4 21 9 18 for information on SI and flame rods included in each endplate 2 Use this pilot endplate set on stable back pressure application only When fluctuating oven pressures can be expected use FIG 4 3 Select these endplate sets when externally mounted SI and FR UV are required or to prevent the use of ignition and or ionization cable inside the duct internally mounted SI and FR To be used together with the external mounting plate sets EXT MTG 4 Direct ignition endplate set to accommodate SI and FR UV on 1 single endplate set standard not possible for wall mounted burners contact MAXON 5 To be selected together with NP EP SI FR UV COMBUSTION SYSTEMS FOR INDUSTRY MAXONI MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved A W WwW M AX ONC DOR P C OM Duct burners APX Burner 4 21 9
16. 1 1 5 2 ft 3 Not available on EC market 4 H style burners Contact MAXON for other grid configurations 5 In duct APX Slide in units with mounting plug or plate to be flanged onto the duct Example APX ID SU LP 14 ft STRAIGHT in duct APX burner slide in unit of 14 ft with low pressure drillings WOW WwW M A X O N CORP COM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved MAXON 4 21 9 14 F E 5 08 Duct Burners APX Burner Endplate set options Different types of endplates are available for MAXON APX burners Refer to the table below for selection of the most appropriate pilot endplates Overview Endplate set options MAXON APX burners Description Designation 1 Wall mount In duct 3D View Raw gas pilot endplate set with air by pass FIG1 FR yes no incl SI pilot gas connection FR or 2 provision for UV scanner FIG1 UV yes no Endplate set with FR only FIG2 FR yes yes Endplate set with sight glass only FIG2 SG yes yes Plain endplate set FIG2 PLN yes yes Endplate set for direct ignition with SI only FIG3 SI yes yes FIG4 FR yes no Raw gas pilot endplate set incl SI FR or provision for UV scanner P FIG4 UV yes no FIG5 FR no yes In duct raw gas pilot endplate set
17. 39 37 weight Ibs 129 147 157 174 185 199 242 254 268 281 294 307 389 404 422 Dimensions in in unless stated otherwise Burner size 8 8 5 9 9 5 10 10 5 11 11 5 12 12 5 13 13 5 14 14 5 15 L 96 102 108 114 120 126 132 138 144 150 156 162 168 174 180 Gas inlet 1 3 3 g 3 3 3 3 4 4 4 4 4 4 4 4 A 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 20 47 B 44 09 44 09 44 09 44 09 44 09 44 09 44 09 44 09 51 97 51 97 51 97 51 97 51 97 51 97 51 97 J 2 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 15 75 H 2 39 37 39 37 39 37 39 37 39 37 39 37 39 37 39 37 47 24 47 24 47 24 47 24 47 24 47 24 47 24 weight Ibs 440 455 471 572 594 616 632 651 715 735 755 775 794 815 832 1 Gas inlet connection standard ISO threaded for sizes up to and including 2 Larger sizes standard have DIN PN10 flanged connections NPT threaded and ANSI 150lbs flanges available on request 2 Plug to be mounted in an opening with min dimensions J x H MAXON WOW WwW M AX ON C OR P COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved c a M Duct burners APX Burner For complete burner di
18. 5 ft Straight 2 3 5 5 ft to 15 ft Straight 2 5 5 ftto 15 ft Straight z 3 5 5ftto 15 ft Straight 2 NA 1x1 to 1x2 5 ftH J4 NA 1x 1 to 1x2 5 ftH 2 4 NA 2x 1 to 2x 2 5 ftH reli NA 2x1 to 2x 2 5 ftH 2 4 NA 3x1 to 8x3 5 fH 2 4 NA 3x 1 to 8x 3 5 ftH 2 4 1 All burners are available with constant or modulated combustion air flow All burners are available with SP and LP drillings standard pressure low pressure see tables page 4 21 9 7 and page 4 21 9 8 2 Available with incremental of 0 5 ft 0 5 1 1 5 2 ft 3 Not available on EC market 4 H style burners Contact MAXON for other grid configurations Example APX SM EB SP 7 5 ft STRAIGHT wall mounted APX of 7 5 ft straight slot mounted for external blower with standard pressure drillings In duct APX ID 1 Packaged blower PB External blower EB Slide in unit SU 0 5 ft to 5 ft Straight 2 3 0 5 ft to 5 ft Straight 2 0 5 ft to 5 ft Straight 5 5 5 ft to 15 ft Straight 2 3 5 5 ft to 15 ft Straight 2 5 5 ft to 15 ft Straight 5 NA 1 x 1 to 1 x 2 5 ft H 2 4 NA NA 2 x 1 to 2x 2 5 ft H 2 4 NA NA 3 x 1 to 3 x 3 5 ft H 2 4 NA 1 All burners are available with constant or modulated combustion air flow All burners are available with SP and LP drillings standard pressure low pressure see tables page 4 21 9 7 and page 4 21 9 8 2 Available with incremental of 0 5 ft 0 5
19. 6 66 66 ib He HW 4E 11 11 11 44b 11 11 11 11 4x 11 11 11 11 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 54 5 12 18 14 15 16 18 L 12 18 24 30 36 42 48 60 72 84 96 108 G 5 4 alal o 10 13 15 16 17 19 20 weight Ibs 14 21 27 34 41 49 55 68 82 95 4 122 e o 4 z 4 5 W WwW WwW M A X O N G OR P C O M MAXON COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved 4 21 9 23 E Duct burners APX Burner E i 5 08 1 to 15 ft packaged blower not for EC market This modular straight burner includes one or more combustion air blowers This version is not suitable for the EC market The packaged burner dimensions are the same as those of the external blower version see page 4 21 9 21 Additional to the external blower version the packaged version has got one or more combustion air blowers mounted directly on the back of the burner For positions of these combustion air inlets see page 4 21 9 21 For dimensions of blowers see page 4 21 9 36 APX H Style burners wall mounted j C E B
20. AXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 20 E i 5 08 Dimensions and weights 0 5 ft packaged blower Duct Burners APX Burner This burner version includes a combustion air blower This version is not suitable for the EC market Combustion air blower 3 Spark ignitor Flame rod Burner mounting plane Main gas inlet flange 1 NPT je Q 4 Dimensions in inches unless stated otherwise A B C D E F G H K L 6 5 11 5 4 5 11 2 6 6 8 1 3 1 4 7 4 7 7 10 2 Mounting arrangements view C C Continuous flange mounting Slot mounting Dimensions in inches unless stated otherwise M N O B Q R S T X 1 Y 1 7 9 9 10 1 6 0 438 5 9 2 0 438 8 6 7 w WwW WwW M AX ON COR FP c M MAXON COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved Duct burners APX Burner 47219 21
21. NO A ES E Ec eee q 1 1 o 1 o o o l i i 7 amp 4 Dimensions in in unless stated otherwise Burner size A B C D E F e H oJ K N pet 1x1 26 62 18 5 8 41 16 24 6 45 12 24 8 6 6 68 0 4 12 2 5 41 1x1 5 32 62 24 5 8 41 16 24 6 45 12 24 8 6 6 68 0 4 18 2 5 48 1x2 38 62 30 5 8 41 16 24 6 45 12 24 8 6 6 68 0 4 24 2 5 54 1x2 5 44 62 36 5 8 41 16 24 6 45 12 24 8 6 6 68 0 4 30 2 5 61 2x1 26 62 18 5 8 41 28 24 6 45 24 24 8 18 6 68 0 4 12 7 68 2x1 5 32 62 24 5 8 41 28 24 6 45 24 24 8 18 6 68 0 4 18 7 75 2x2 38 62 30 5 8 41 28 24 6 45 24 24 8 18 6 68 0 4 24 7 82 2x2 5 44 62 36 5 8 41 28 24 6 45 24 24 8 18 6 68 0 4 30 7 88 3x1 26 62 18 5 8 41 40 24 6 45 36 24 8 30 6 68 0 4 12 7 95 3x1 5 32 62 24 5 8 41 40 24 6 45 36 24 8 30 6 68 0 4 18 7 102 3x2 38 62 30 5 8 41 40 24 6 45 36 24 8 30 6 68 0 4 24 7 109 3x2 5 44 62 36 5 8 41 40 24 6 45 36 24 8 30 6 68 0 4 30 7 116 3x3 5 56 62 48 5 8 41 40 24 6 45 36 24 8 30 6 68 0 4 42 7 129 www nMaAXONGORP CGOM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 26 E i 5 08 Duct Burners APX Burner APX Slide in units
22. OM MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved MAXON 4 21 9 8 d E i 5 08 Duct Burners APX Burner APX burner H external blower conversion table to corresponding straight lengths of burner in feet Burner dimension Coiieaponeing Burner size ft m Sc APX1x1H 1x1 3 APX 1 x 1 5 H 1x1 5 3 5 APX1x2H 1x2 4 APX 1 x 2 5 H 1x2 5 4 5 APX2x1H 2x1 5 APX 2 x 1 5 H 2x1 5 5 5 APX2x2H 2x2 6 APX2x 2 5 H 2x2 5 6 5 APX3x1H 3x1 7 APX 3x 1 5H 3x 1 5 7 5 APX3x2H 3x2 8 APX 3 x 2 5H 3x 2 5 8 5 APX 3 x 3 5H 3x 3 5 9 5 Example APX 2 x 2 5 H corresponds with 6 5 ft straight burner length Use table page 4 21 9 7 and page 4 21 9 8 for typical burner data per foot of burner COMBUSTION SYSTEMS FOR INDUSTRY M AXON MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved A W W W M AX OUO NC ORP CG OM 4 21 9 9 E Duct burners APX Burner E i 5 08 APX burner firing on natural gas modulated combustion air 1 STRAIGHT and H external blower Typical burner data Fuel natural gas with 1000 Btu ft HHV sg 0 6 1 Combustion air 60 F 21 Os 50 humidity sg 1 0 1 Stated pressures are indicative Actual pressures are a fun
23. Specifications of APX burners APX Burner STRAIGHT packaged blower 1 Duct burners APX Burner 4 21 9 7 E i 5 08 Typical burner data 2 Fuel natural gas with 1000 Btu ft HHV sg 0 6 3 Combustion air 60 F 21 O 50 humidity sg 1 0 3 Stated pressures are indicative Actual pressures are a function of air humidity altitude type of fuel and gas quality Burner Differential Differential Maximum Differential Nominal Min Flame Blower Number size 4 gas pressure gas pressure capacity 6 air pressure air flow g Capacity length 9 horsepower of Standard low pressure 7 blowers drilling 5 drilling 5 Wc we Btu h WC scfm Btu h in hp 0 5 5 5 400 000 1 5 80 12 500 30 40 1 12 1 1 16 5 9 1 000 000 4 172 25 000 30 40 0 5 1 1 5 16 5 9 1 500 000 4 260 37 500 30 40 0 5 1 2 16 5 9 2 000 000 4 345 50 000 30 40 1 1 2 5 16 5 9 2 500 000 4 430 62 500 30 40 1 1 3 16 5 9 3 000 000 4 510 75 000 30 40 1 1 3 5 16 5 9 3 500 000 4 600 87 500 30 40 1 5 1 4 16 5 9 4 000 000 4 690 100 000 30 40 1 5 1 5 16 5 9 5 000 000 4 860 125 000 30 40 3 1 6 16 5 9 6 000 000 4 1030 150 000 30 40 1 2 7 16 5 9 7 000 000 4 1200 175 000 30 40 1 5 2 8 16 5 9 8 000 000 4 1380 200 000 30 40 1 5 2 9 16 5 9 9 000 000 4 1550 225 000 30 40 3 2 10 16 5 9 10 000 000 4 1720 250 000 30 40 3 2 11 16 5 9 11 000 000 4 1900 275 000 30 40 3 2 12 16 5 9 12 000 000
24. T 1 1 1 8 3 6 0 4 9 2 7 0 5 0 2 5 1 5 2 0 6 5 0 8 1 4 1 6 3 0 0 6 1 Clearance for flame rod removal W W W MAXONCORP COM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved 4 21 9 31 E i 5 08 MAXON 4 21 9 32 E i 5 08 Duct Burners APX Burner INDUCT ENDPLATE SET 1 Scanner connection Rp1 2 Flame rod connection Rp1 4 bushed N Spark ignitor connection M14x1 25 Pilot gas connection Rp 1 4 A oC See MEE E Gas test connection 1 8 NPT Combustion air test connection 1 8 NPT o gt 11 5 in B 6 5in INDUCT PLAIN ENDPLATE SET 1 Gas test connection 1 8 NPT 2 Combustion air test connection 1 8 NPT A 11 5in B 6 5in A W WwW M AX ON COR P C OM COMBUSTION SYSTEMS FOR INDUSTRY M AXON MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved Duct burners APX Burner Sale ad E
25. ction of air humidity altitude type of fuel and gas quality MBtu h APX natural gas firing Capacity per foot 3 HHV 0 03 0 17 0 34 0 68 1 0 1 36 Differential natural gas pressure 4 we 0 015 05 1 9 76 16 5 30 5 SP burner Differential natural gas pressure 5 wc 0 01 0 26 1 04 4 16 9 16 6 LP burner Differential combustion air pressure 6 wc 045 0 45 0 45 18 74 for fresh air firing 9 i i Differential combustion air pressure at blower 7 wc 07 0 7 0 7 28 6 11 5 outlet for fresh air firing E Optimal combustion air flow for fresh air firing 8 scfh 3500 3500 3500 7000 10300 14035 H Optimal combustion air factor for fresh air firing 8 n 11 2 2 1 1 1 1 1 1 1 1 Flame length fresh air firing 9 ft NA 0 98 1 6 2 7 2 7 3 6 3 6 4 6 4 6 5 6 9 Differential combustion air pressure fo 8 for recirculating air firing low O5 n gt 1 3 6 wol 048 Doo Dor edes 5 35 1 E a a 7 o 2 Differential combustion air pressure at blower 5 outlet for recirculating air firing low Os n gt 1 3 y we Quee TE 10 S fes Ie a dq Optimal combustion air flow for S recirculating air firing low O n gt 1 3 8 scfh 3531 3531 mem euo esl NA 9 gt Optimal combustion air factor for 9 2 recirculating air firing low Os n gt 1 3 fs i u 22 Tee ke ks NA o 9 9 Flame length ia E B i g recirculating air firing low Os n gt 1 3 BI ij NA 1626 4 5 6 5 8 2 92 10 11 5
26. e to be added separately 6 This endplate set allows direct ignition on induct APX burners SI and flame detection can be mounted on this endplate 7 For EC market only Process temperature Max upstream process air temperature 480 F Max downstream process air temperature at low fire 570 F Max downstream process air temperature at high fire 750 F Special attention should be paid when selecting the burner to avoid downstream process air temperatures above 570 F at low fire Higher temperatures at minimum burner capacity may dramatically reduce life time of the burner At higher capacity the burner parts are better cooled by the air and gas flow and allow much higher downstream temperatures The slide in units APX can accept in specific circumstances higher process temperatures both upstream and downstream of the burner Contact MAXON for more information Combustion air requirements MAXON APX burners are fed with clean fresh combustion air containing 21 Vol oxygen and a maximum temperature of 120 F In some installations the use of higher temperature combustion air or combustion air containing slightly lower oxygen levels may be possible This should be considered case by case Contact MAXON for more information COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice M AXON 2005 Copyright Maxon Corporation All rights reserved
27. i 5 08 Flame rod FR APX 1 1 4 18 thread Dimensions in in unless stated otherwise B s A B C Hit 9 6 7 5 0 2 L A _ Flame rod FR Quartz for use with external mounting plate kit pae A katl Dimensions in in unless stated otherwise R E Size A B a a 12 12 1 18 18 1 24 24 1 30 30 1 36 36 1 48 48 1 Spark ignitor SI APX 10 mm A 1 1 4 18 thread ap LG B Dimensions in in unless stated otherwise beac T A B C D D 2 75 0 25 0 4 0 125 1 Spark ignitor SI APX 14 mm Long 1 14 mm thread Dimensions in in unless stated otherwise A B C D 4 09 0 51 1 87 0 08 Spark ignitor SI APX 14 mm Short 1 14mm thread Dimensions in in unless stated otherwise A B C D 3 3 0 51 1 07 0 08 WWW MAXONCORP CO COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved MAXON 4 21 9 34 E i 5 08 Spark ignitor SI APX 1 2 14 Duct Burners APX Burner 1 1 2 14 thread B p i cwm RE Dimensions in in unless stated otherwise A i n B C D E UB 6 5 5 51 1 25 0 375 0 56 A _ Spark ignitor quartz less tube Dimensions in i
28. ing n gt 1 3 for recirculating processes 4 5 9 Typical flame length for shown air amount and capacity Flame length may vary in function of process air flow distribution velocity tempera ture oxygen level etc Contact MAXON for more information www enmMaA XON COR P G 0M COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice II AXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 10 F E 5 08 Duct Burners APX Burner APX burner firing on propane modulated combustion air flow 1 STRAIGHT and H external blower Typical burner data Fuels propane with 2592 Btu ft HHV sg 1 57 2 butane with 3364 kBtu ft HHV sg 2 07 2 Combustion air 15 C 21 O 50 humidity sg 1 0 2 Stated pressures are indicative Actual pressures are a function of air humidity altitude type of fuel and gas quality MBtu h APX natural gas firing Capacity per foot 3 HHV 0 07 0 17 0 34 0 68 1 0 1 36 Differential natural gas pressure ul wc 0 03 0 19 0 75 3 6 52 12 SP burner Differential natural gas pressure 5 wc 0 02 0 14 0 58 23 5 92 LP burner Differential combustion air pressure 6l Wwe 4 4 4 4 4 71 for fresh air firing D e amp Differential combustion air pressure at blower m WC 6 6 6 6 6 t 5 outlet for fresh air firing E Optimal combustion air flow for fresh
29. ions to be taken for the design of combustion air fan in case of higher back pressures 3 Higher back pressures are possible when the plug and airbox are reinforced Contact MAXON for more information W WW M AX OUO NC O R P C UM COMBUSTION SYSTEMS FOR INDUSTRY MAXONI MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved i 4 21 9 17 Duct burners APX Burner E i 5 08 Piloting amp ignition APX burners equipped with one of the raw gas pilot endplate set see table on page 4 21 9 14 will generate a stable pilot flame used to ignite the burner on main flame After the main burner is ignited the pilot shall be interrupted Permanent pilot is not advised Use the main burner at minimum capacity for continuous operation Direct ignition of APX burners is also possible if accepted by local codes Note that only in duct APX burners offer direct ignition endplates which accommodate spark ignitor and flame detection in the same endplate set Direct ignition wall mounted burners need 1 endplate set for the SI and another endplate set to mount the flame detector For both pilot and direct ignition use ignition transformers min 5000 V 200 mA Available spark ignitors Spark ignitors are included into the pilot endplate sets except for FIG6 endplates Refer to table on page 4 21 9 14 for exact information Below table will help you w
30. ith the selection of the appropriate feed thru spark ignitors in combination with FIG6 endplate set and external mounting plate EMP Feed thru ignitors with Feed thru ignitors with Spark ignitors only carbon steel tube stainless steel tube without tube 12 CS QI 12 CS quartz ignitor 12 SS QI 12 SS quartz ignitor 12 QI L T 12 quartz ignitor 18 CS QI 18 CS quartz ignitor 18 SS Ql 18 SS quartz ignitor 18 QI L T 18 quartz ignitor 24 CS QI 24 CS quartz ignitor 24 SCS QI 24 SS quartz ignitor 24 QI L T 24 quartz ignitor 30 CS QI 30 CS quartz ignitor 30 SS QI 30 SS quartz ignitor 30 QI L T 30 quartz ignitor 36 CS QI 36 CS quartz ignitor 36 SS QI 36 SS quartz ignitor 36 QI L T 36 quartz ignitor 48 CS QI 48 CS quartz ignitor 48 SS QI 48 SS quartz ignitor 48 QI L T 48 quartz ignitor 1 Select your spark ignitor in function of the required length 12 to 48 in steps of 6 Typical ignition sequence with pilot WB Pre purge of burner and combustion chamber according to the applicable codes and the installation s requirements B Gas control valve shall be in the minimum position Bi APX burners with modulated combustion air shall have the combustion air valve linked with the gas control valve also in the corresponding minimum position to allow minimum combustion air flow to the burner Pre ignition typically 2 s sparking in air Open pilot gas and continue to spa
31. mension information following application depending dimensions should be defined W internal duct width D max 2f D X Y Z S X internal insulation thickness Y external insulation thickness Z flange elevation default 4 in Wall mounting opening dimensions A L B wall opening burner length refer to burner dimensions on page 4 21 9 20 XL endplate width mounted on left side of the burner XR endplate width mounted on right side of the burner A B XL XR XL and XR depending on the endplate type use the table below for determination duct wall thickness min 0 5 ft min 0 5 ft default G X Note that Fig 4 endplates need a special wall opening shape if full seal is required Contact MAXON for details Dimensions in in unless stated otherwise Endplate Fig X 1 2 2 2 3 4 5 6 1 3 4 3 Mounting flange dimensions Use this sketch to determine fixing points for flange mounted burner parts A C C C ice aas t i 6 is o m Dimensions in in unless stated otherwise A B C D E 2 1 8 4 6 0 4 0 6 WWW MAX ONG OR P o COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved
32. n unless stated otherwise A A B oC 8 4 6 5 0 472 Bn 8 Spark ignitor quartz with tube Available in different sizes Each size available in either carbon steel or stainless steel A ten Dimensions in in unless stated otherwise Size A B oe 12 12 1 18 18 1 24 24 1 30 30 1 36 36 1 48 48 1 WWW MAXON GO RP C O M MAXON COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved Duct burners APX Burner diis E i 5 08 Mounting plate kits for spark ignitor and flame detection External SI UV 1 Gasket A Q 2 3 A 2 Cover plate 6 cu 7 3 Sealing plate i Vo Se D u O9 e Fo Bl UL cones J a a NL T 1 i LL V7 0 5 d I 9 ESF r A A G M E A F lt Dimensions in in unless stated otherwise A B C D E F G H J eK L M Weight Ibs 3 74 5 51 2 48 4 72 0 80 0 58 0 47 0 31 0 26 0 32 1 12 1 12 0 77 2 60 Internal SI UV 1 Gasket B 2 A C 2 Cover plate Ht ES i zi a y KO D C e 4 e x m ao i E MUI i Io Lj E M
33. ns Common engineering practice should be followed to equally feed the burner at each air and gas connection Prevent too high velocities which may cause unequal pressure build up Burner and piping shall be independently supported to allow for thermal expansion to prevent any stress on the burner inlets and to prevent the transmission of vibrations Fuels MAXON APX burners can fire natural gas propane butane LPG and is able to fire multiple fuels simultaneously if the control System is properly designed Alternative fuels may be possible Contact MAXON for more information Expected Emissions The clean hot air generated by MAXON APX burners meets most of the local requirements of make up air systems over the full turndown of the burners Also in low temperature ovens and drying systems MAXON APX burners are able to fire with both low NO and CO over its entire turndown meeting the most stringent local emission requirements The production of pollutants can be highly dependant upon burner application and installation Differing temperatures process velocities oxygen levels fuels and other process related factors such as unequal process air distribution can all influence the actual level of emissions produced No guarantee of emissions is intended or implied on the above Contact MAXON for evaluation of expected emissions on your typical application W W W M AX OUO NCORP C OM COMBUSTION SYSTEMS FOR INDUSTRY M
34. ns wall mounted and in duct are available in several variations Below tables give an overview of the different options of each version Note that wall mounted APX burners are always mounted on suction side of circulating fans or in balanced ducts Whether slot or continuous flange mounted burner should be selected depends upon the desired amount of cooling purge air around the burner The packaged blower option is not available on the EC market for EC market same execution can be achieved by selecting the external blower option and mounting an appropriate European blower direct onto the air inlet connection of the burner t To comply with local codes and directives special provisions may be required to correctly safeguard the minimum NZA combustion air pressure in case multiple blowers are mounted on the burner COMBUSTION SYSTEMS FOR INDUSTRY MAXON MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved W W W MAXONC O R P a COM Duct burners APX Burner Wall mounted APX9 WM 1 Slot mounted SM Continuous flange mounted CF 4 21 9 13 E i 5 08 Packaged blower PB External blower EB Packaged blower PB External blower EB 0 5 ft to 5 ft Straight 2 3 1 ftto 5 ft Straight 2 0 5 ft to 5 ft Straight 2 3 1 ft to 5 ft Straight 2 5 5 ft to 1
35. rface il i 6 Pilot air shutter ize eae M N 1 Ww M 9o LB h F Dimensions in in unless stated otherwise A B C D Emnm Frij G H J K L 1 1 1 8 36 0 4 10 8 9 4 3 4 6 0 0 8 25 6 5 1 Clearance for flame rod removal FIG 2 Po Flame rod a A OQ Mounting surface Optional sight glass Flame rod connection1 1 4 NPT Gas test connection 1 8 NPT Dimensions in in unless stated otherwise A BC DAE TIIE MIEG H J K LIMIN 1 1 18 36 04 93 69 5 2 5 1 5 2 65 0 8 1 4 1 Clearance for flame rod removal WWW MAXONCORP COM COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved 4 21 9 29 E Duct burners APX Burner E i 5 08 VIEW B B i 6 A 4i i t i i ul S TH cm pg t LI ad MAXON 4 21 9 30 E i 5 08 FIG 3 on A Spark ignitor connection M14x1 25 Spark ignitor Gas test connection 1 8 NPT Mounting surface Duct Burners APX Burner Dimensions in in unless stated otherwise A B C D En Fr G H J K L M N 1 1 1 8 3 6 0 4 3 3 2 7 5 2 5 1 5 2 6 5 0 8 1 4 1 Clearance for spark ignitor removal FIG 4 1 Spark ignitor connection 3 4 16 Y
36. rk the ignitor typically 5 s to 10 s depending on local code requirements Stop sparking continue to power the pilot gas valves and start flame check Trip burner if no flame detected from here on Check pilot flame stability typically 5 s to 10 s to prove stable pilot Open main gas valves and allow enough time to have main gas in the burner typically 5 s time required to have main gas in the burner Close the pilot gas valves Release to modulation allow modulation of the burner Above sequence shall be completed to include all required safety checks during the start of the burner process amp burner safeties We advise to position 1 pilot gas valve as close as possible to the pilot burner gas inlet for fast ignition of the pilot burner COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved W WW M AX OUO N CGC O RP COM 4 21 9 18 Duct Burners APX Burner E i 5 08 Flame supervision The flame of APX burners can be supervised with a flame rod or UV scanner Depending on the application different versions of endplate sets accommodating different types of flame rods can be selected Refer to table page page 4 21 9 14 Overview endplate set options and table page 4 21 9 15 APX accessories for more information For poor quality propane LPG or butane we advise to use UV scanner
37. rporation All rights reserved
38. s only Only use the appropriate positions on the MAXON endplate sets for correct and safe flame supervision Every other position is not acceptable and may cause unsafe situations Refer to the user manual of the UV scanner for correct installation and operating instructions Available flame rods Also flame rods are included into the pilot endplate sets except for FIG6 endplates Refer to table page 4 21 9 14 for exact information Below table will help you with the selection of the appropriate feed thru flame rods in combination with FIG6 endplate set and external mounting plate EMP Feed thru ignitors with Feed thru ignitors with Spark ignitors only carbon steel tube stainless steel tube without tube 12 CS FR 12 CS quartz flame rod 12 SS FR 12 SS quartz flame rod 12 FR L T 12 quartz flame rod 18 CS FR 18 CS quartz flame rod 18 SS FR 18 SS quartz flame rod 18 FRL T 18 quartz flame rod 24 CS FR 24 CS quartz flame rod 24 SCS FR 24 SS quartz flame rod 24 FRL T 24 quartz flame rod 30 CS FR 30 CS quartz flame rod 30 SS FR 30 SS quartz flame rod 30 FR L T 30 quartz flame rod 36 CS FR 36 CS quartz flame rod 36 SS FR 36 SS quartz flame rod 36 FR L T 36 quartz flame rod 48 CS FR 48 CS quartz flame rod 48 SS FR 48 SS quartz flame rod 48 FRL T 48 quartz flame rod 1 Select your flame rod in function of the required length 12 to 48 in steps of
39. tion 1 Air gas mixing body Aluminium 2 Mixing plates AISI 430 1 4016 3 Endplate Cast iron or AISI 304 1 4301 Galvanized or AISI 430 4 Sideplate 1 4016 W WW MAX OUO NC ORP COM 4 COMBUSTION SYSTEMS FOR INDUSTRY MAXON reserves the right to alter specifications and data without prior notice MAXON 2005 Copyright Maxon Corporation All rights reserved 4 21 9 12 i E 5 08 Duct Burners APX Burner Selection criteria Application details The MAXON APX nozzle mix line burner has been especially designed for low temperature air heating applications where standard raw gas line burners MAXON NP AIRFLO are not suitable Thanks to its unique single piece air gas mixing body APX strongly differentiate from the regular box burner with excellent flame stability and flexibility also in high modulating and or low oxygen process air flows Basically APX is available in two main versions A wall mounted APX to be externally mounted on the oven or dryer wall Thanks to the flame that exits the mixing chamber more than 0 5 ft downstream from the burner mounting flange it is possible to penetrate oven panels up to 0 5 ft thickness without risking damage to oven structure from flame impingement The in duct APX is installed inside the dryer or make up air unit to heat up low temperature process air flows Available APX versions and options The two basic APX9 versio
40. ty per foot to 1 MBtu hr with n 1 3 4 Pressure differential between burner test connection and combustion chamber for propane butane to be used for burner commissioning SP burner Standard Pressure drillings Actual pressure differential at burner gas inlet is approx 5 higher 5 Pressure differential between burner test connection and combustion chamber for natural gas to be used for burner commissioning LP burner Low Pressure drillings Actual pressure differential at burner gas inlet is 5 higher 6 Differential combustion air pressure between burner air test connection and combustion chamber for commissioning 7 Typical differential combustion air pressure for 5 ft APX to be used for blower selection 8 Advised combustion air flow and air factor n for best burner performance For recirculating air heating with low oxygen advised air factor is 20 higher n gt 1 1 for fresh air firing n gt 1 3 for recirculating processes 9 Typical flame length for shown air amount and capacity Flame length may vary in function of process air flow distribution velocity temperature oxygen level etc Contact MAXON for more information W WwW M AX OUO NCO RP COM COMBUSTION SYSTEMS FOR INDUSTRY MAXON MAXON reserves the right to alter specifications and data without prior notice 2005 Copyright Maxon Corporation All rights reserved 4 21 9 11 E Duct burners APX Burner E i 5 08 Materials of construc
Download Pdf Manuals
Related Search