7 461 Burner Controls he urner control is designed for use with forced drft gs nd dul-fuel urners of ny cpcity, in intermittent opertion. he nd this Dt Sheet re intended for use y OEs which integrte the urner controls in their products. Use he is designed for the fully utomtic control nd supervision of single-stge, multi-stge or modulting gs or dul-fuel urners. It is suited for use with expnding flme nd interrupted pilot type gs urners. Flme supervision is ensured y mens of n ioniztion proe or QRA... UV flme detector. Ignition sprk proving with UV flme detector is lso possile. When used in connection with gs vlve proving system LDU11... (refer to Dt Sheet N7696), the control sequence of the LFE1 cn e extended to include utomtic gs vlve proving. All types of urner controls comply with the relevnt Europen stndrds for gs nd oil urners of ny cpcity. he cn control the following urner plnt components: fn motor, flue gs fn, ir dmper, ignition trnsformer, 1 to 3 fuel vlves, lod controller nd n externl lockout wrning device. Burner control for oil urners to EN230: 2005 18.02.2011 Industry Sector
Use (cont d) Specil fetures Wrning notes - repurge time djustle etween 8 nd 63 seconds - Opertion optionl with or without postpurging - Fully utomtic control of the ir dmper, irrespective of the ctutor running time - he ir pressure check cn e comined with the functionl check of the ir pressure switch prior to strtup - Ignition optionl: direct ignition, with pilot urner, without or with ignition sprk proving - First nd second sfety time djustle etween 0 nd 9 seconds - Automtic test of the UV flme detector during urner off periods nd during the purging times - Optionl semi-utomtic strt nd opertion - Built-in lockout wrning lmp - he progrm indictor shows continuously the progrm sequence - he motor of the sequence switch cn e switched off (to simplify urner djustments) - he cmshft of the sequence switch cn e turned mnully - Optionl electricl remote lockout reset o void injury to persons, dmge to property or the environment, the following wrning notes must e oserved! he unit my only e opened, interfered with or modified y qulified stff! All ctivities (mounting, instlltion nd service work, etc.) must e performed y qulified stff Before mking ny wiring chnges in the connection re of the urner control, completely isolte the urner control from the mins supply (ll-polr disconnection). Ensure tht the plnt cnnot e indvertently switched on gin nd tht it is indeed ded. If not disconnected, there is risk of electric shock hzrd Ensure protection ginst electric shock hzrd y providing dequte protection for the terminls Ech time work hs een crried out (mounting, instlltion, service work, etc.), check to ensure tht wiring is in n orderly stte nd mke the sfety checks s descried in «Commissioning notes» ress the lockout reset utton / opertion utton extension only mnully (pplying force of no more thn 10 N) without using ny tools or pointed ojects Do not press the lockout reset utton on the unit or the remote lockout reset utton for more thn 10 seconds since this dmges the lockout rely in the unit Fll or shock cn dversely ffect the sfety functions. Such units must not e put into opertion, even if they do not exhiit ny dmge Seling screws my only e loosened nd fctory settings my only e chnged y uthorized stff ounting notes Instlltion notes Ensure tht the relevnt ntionl sfety regultions re complied with Alwys run the high ignition cles seprte from the unit nd other cles while oserving the gretest possile distnce Instll switches, fuses nd erthing in complince with locl regultions ke certin tht the mximum permissile current rting of the connection terminls will not e exceeded Oserve the polrity Burner controls re le to detect wrong polrity of live nd neutrl conductors, in which cse they initite lockout t the end of «SA» 2/18
Electricl connection of flme detectors It is importnt to chieve prcticlly disturnce- nd loss-free signl trnsmission: Never run the detector cle together with other cles Line cpcitnce reduces the mgnitude of the flme signl Use seprte cle Oserve the permissile length of the detector cles (refer to «echnicl dt») he ioniztion proe does not offer protection ginst electric shock hzrd Locte the ignition electrode nd the ioniztion proe such tht the ignition sprk cnnot rc over to the ioniztion proe (risk of electricl overlods) nd tht it cnnot dversely ffect the supervision of ioniztion Insultion resistnce ust e minimum of 50 Ω etween ioniztion proe nd ground Soiled detector holders reduce the insultion resistnce, thus supporting creepge currents Erth the urner in complince with the relevnt regultions; erthing the oiler lone does not suffice Commissioning notes For setting notes, refer to «Setting fcilities on the urner control» When commissioning the plnt for the first time or when doing mintennce work, mke the following sfety checks: Sfety check to e crried out: Anticipted response: ) Burner strtup with flme detector drkened Lockout t the end of «SA» ) Burner strtup with flme detector exposed Delyed lockout to extrneous light c) Burner opertion with simulted loss of Lockout flme; for tht purpose, drken the flme detector during opertion nd mintin tht sttus d) Burner strtup without ir pressure signl Lockout during the prepurge time e) Burner opertion with simulted ir pressure filure Immedite lockout 3/18
Stndrds nd certifictes Conformity to EEC directives - Electromgnetic comptiility EC (immunity) - Directive for gs-fired pplinces - Low-voltge directive 2004/108/EG 90/396/EWG 2006/396/EG ISO 9001: 2010 Cert. 00739 ISO 14001: 2010 Cert. 38233 Identifiction code to EN 298 F B L L B N ype LFE1.1 / 8854 LFE1 / 8851 LFE1 / 8853 LFE1 / 8866 LFE1 / 8867 LFE1 / 8868 LFE1 / 8892 Lifecycle Burner controls hs designed lifetime* of 250,000 urner strtup cycles which, under norml operting conditions in heting mode, correspond to 10 yers of usge (strting from the production dte given on the type field). his lifetime is sed on the endurnce tests specified in stndrd EN 230 / EN 298 nd the tle contining the relevnt test documenttion s pulished y the Europen Assocition of Component nufcturers (Afecor) (www.fecor.org). he designed lifetime is sed on use of the urner controls ccording to the mnufcturer s Dt Sheet. After reching the designed lifetime in terms of the numer of urner strtup cycles, or the respective time of usge, the BU is to e replced y uthorized personnel. * he designed lifetime is not the wrrnty time specified in the erms of Delivery. Disposl notes he unit contins electricl nd electronic components nd must not e disposed of together with household grge. Locl nd currently vlid legisltion must e oserved. 4/18
echnicl design Housing - lug-in design - he uilt-in unit fuse protects the control contcts of urner control ginst overlods - Impct-proof plstic housing - Ale for optionl mounting position t urner, on control pnes or in control cinets - Control unit driven y synchronous motor, the uxiliry relys, the electronic flme signl mplifier s soon s ll the rest of switch, control nd djustle elements re uild-on t stle CBs nd included in test circuit of urner control - he urner control is secured to its se with 4 screws. he unit cover is protected ginst tmpering y mens of 2 seling screws (refer to «Dimensions») - rinted circuit ord with electronic components - Lrge connection re - de of lck, impct-proof nd het-resistnt plstic - Lockout reset utton with viewing window, for the lockout wrning lmp - rnsprent viewing window for the progrm sequence indictor - coupled to the progrm shft - uses esy-to-rememer symols to indicte the type of fult nd the point in time lockout occurred - 4 extr terminls for the erth conductor, 4 extr terminls for the neutrl conductor, nd 4 uxiliry terminls ype summry ype reference * LFE1.1 / 8854 LFE1 / 8851 LFE1 / 8853 LFE1 / 8866 LFE1 / 8867 LFE1 / 8868 LFE1 / 8892 ins voltge AC 220...240 V AC 100...110 V AC 220...240 V Fctory settings for mins t1 SA t9 frequency 15 s 50 Hz 60 s 2 s 2 s 30 s 60 Hz 50 Hz 60 s 5 s 5 s * he mrking is given inside housing in the rnge of the contcts Ordering Burner control, without plug-in se refer to «ype summry» lug-in se not included in delivery, must e ordered s seprte item! lug-in se ordered s seprte item - lug-in se AGG41041713 (FE) with g11 thred for cle entry glnds - lug-in se AGG13.1 with 16 thred for cle entry glnds Flme detectors - Ioniztion proe supplied y thirds - UV detectors QRA... see Dt Sheet N7712 - Flme detector QRA4.U see Dt Sheet N7711 5/18
echnicl dt Generl unit dt Environmentl conditions ins frequency AC 220 V -15 %...AC 240 V +10 % AC 100 V -15 %...AC 110 V +10 % ins frequency 50...60 Hz ±6 % Unit fuse (uilt-in) 6,3H250V to DIN EN 60127, (5 x 20 mm) rimry fuse (externl) x. 16 A (slow) Weight pprox. 2 kg ower consumption - in strtup Approx. 9 VA - in opertion Approx. 6 VA ounting position optionl Degree of protection I40, when uilt in, with the exception of the connection re (terminl se) Sfety clss II erm. loding of control outputs - er terminl - otl x. 4 A to VDE 0660 AC3 x. 5 A to VDE 0660 AC3 Storge DIN EN 60 721-3-1 Climtic conditions clss 1K3 echnicl conditions clss 12 emperture rnge -20...+60 C Humidity < 95 % r.f. rnsport DIN EN 60721-3-2 Climtic conditions clss 2K2 echnicl conditions clss 22 emperture rnge -50...+60 C Humidity < 95 % r.h. Opertion DIN EN 60721-3-3 Climtic conditions clss 3K5 echnicl conditions clss 32 emperture rnge -20...+60 C Humidity < 95 % r.h. Attention! Condenstion, formtion of ice nd ingress of wter re not permitted! Flme supervision Flme detector Ioniztion proe QRA... Operting voltge 460 Vpek 460 Vpek Required detector current - At AC 100 V nd AC 220 V in. 8 µa in. 150 µa - At AC 110 V nd AC 240 V in. 9 µa in. 200 µa ossile detector current x. 100 µa x. 650 µa Short-circuit current Approx. 4 ma --- erm. length of connection cle 20 m ¹) 20 m ¹) (lid seprtely) erm. mient temperture --- 60 C ype of insultion --- rotective insultion ounting position --- Optionl 1) If longer distnces need to e covered, use low cpcitnce cle (e.g. single-core cle, totlly mx. 2 nf) 6/18
echnicl dt (cont d) Detector current mesurement here is no self-checking while mesurements re mde. Ioniztion proe Flme detector QRA... 14 C ION QRA... For detector currents, refer to «echnicl dt». Legend C ION Electrolytic cpcitor 100...470 µf; DC 10...25 V Ioniztion proe icrommeter Ri mx. 5000 Ω 7/18
Function rerequisites for urner strtup he urner cn e strted only when: - the urner control s sequence switch is in its strt position - the urner control hs not locked out, e.g. cused y defective UV tue - the contcts of ll control nd sfety devices in the control loop etween terminls 8 nd 9 re closed - the ir pressure switch does not indicte ir pressure Defects in the flme supervision circuit or in the urner control itself prevent strtup or led to lockout during the strtup sequence. Attention! If the ir dmper is not controlled y the urner control, terminls 20, 21 nd 22 must e interconnected. rogrm sequence on strtup First, the fn motor is ctivted vi terminl 3, nd the ctutor is controlled vi terminl 22. As soon s the ir dmper reches its fully open position, the urner control s sequence switch strts running nd the prepurge time commences. he minimum ir pressure set on the ir pressure switch must e reched within 10 seconds (5 seconds with the LFE1.1) (or 7 seconds [3.5 seconds with the LFE1.1] with postpurging) nd must e mintined until controlled shutdown occurs. Otherwise, the urner control will initite lockout. A flme signl during the prepurge time lso leds to lockout. On completion of the set prepurge time, the dmper receives the control commnd to return to the fully closed position. he sequence switch remins sttionry during the time the ir dmper trvels to its closed position. As soon s the signl contct for minimum ir is operted y the ctutor, the sequence switch strts running gin nd continues with the urner s progrm sequence, which cn no longer e influenced from externlly: - reignition (3 seconds / 1.5 seconds with the LFE1.1) - Relese of the first fuel vlue t terminl 5 (the fuel vlve of pilot urner, which must e shut on completion of the second sfety time, must e connected to terminl 10) - Completion of the set sfety time. If no flme is estlished during tht period of time, lockout will occur (lwys with interlocking of the urner control) - Following n intervl of 11 seconds (5.5 seconds with the LFE1.1) of the first fuel vlve, the second fuel vlve will e relesed - he pilot urner, if connected to terminl 10, will e shut - he lod controller will e switched on following further intervl of 12 seconds (6 seconds with the LFE1.1). he urner s operting position hs thus een reched. From now on, the lod controller controls the urner s output y incresing or decresing the fuel throughput nd the ir flow in response to the het demnd (rtio control). his cn e ccomplished either in stepwise fshion, e.g. with thermostt, or continuously y mens of modulting controller Loss of flme during opertion lwys leds to lockout. Strtup with ignition sprk supervision In principle, the progrm sequence is the sme s strtup without ignition sprk supervision. Exceptions: - If the UV flme detector does not receive n input signl during the preignition time, lockout will occur efore ny gs is relesed, tht is, sfety time SA = 0 seconds - With ignition sprk supervision, the sfety time for the pilot urner cn only e djusted etween 0...6 seconds (= SA in the sequence digrm of the sequence switch) 8/18
Function (cont d) Control sequence following controlled shutdown Control sequence following lockout reset of the urner control rogrm indictor Controlled shutdown tkes plce s soon s one of the control or monitoring devices in the control loop etween terminls 8 nd 9 opens its contcts. As result, the fuel vlves re immeditely shut nd the sequence switch is restrted to progrm postpurging, if scheduled. On completion of the postpurge time, the sequence switch hs reched its strt position gin, which is mintined until the next switch-on commnd is given. During the postpurge time, flme supervision is strted gin. Hence, ny flme signl tht occurs during tht period of time will led to lockout. After pressing the uilt-in or remote lockout reset utton, the sequence switch will return to its strt position. In tht cse, the only urner plnt component tht is switched on is the fn motor connected to terminl 17. Since in norml circumstnces the control thermostt or pressurestt continues to cll for het, the urner control immeditely triggers new strt when the strt position is reched. he progrm indictor continuously indictes the progress of the strtup sequence. he letters on the indictor disk correspond to those in the djcent sequence switch digrm. he numers give the remining prepurge time. In the event of lockout, oth sequence switch nd progrm indictor stop, showing the phse of opertion during which lockout occurred. Reding the progrm indictor 30 40 repurge time lsts nother 35 seconds Vlve 2 t terminl 7 opens F E D 9/18
Bsic digrm (R) SB EK2* 1 16 AS r1 EK1* VIII r1 IX 8 18 L G R1 19 9 fr1 W r3 XIII 3 22 21 (11) ~ z N 1 LK 4 ~ N 20 VIII fr2 IX NC FR XI 15 QRA... ION 14 13 + X XI II IV VII I XII IV AR III V VI r2 L1 r2 UL1 BR S 2 6 5 10 7 11 17 12 746101/0207 N (p) Z GV1 (GV) GV2 GV3 2 ~ When using UV flme detector QRA..., terminl 13 must e erthed. Attention! Do not press lockout reset utton (EK...) for more thn 10 seconds! L2 Legend AR Lod rely with contcts «r...» LF UV flme detector QRA... AS Unit fuse L Air pressure switch BR Lockout rely with contcts «r...» L1 Lockout wrning lmp (uilt-in) BS... Operting switch L2 Lockout wrning lmp (externl) c Fn contctor with contcts «c...»... Fn d Auxiliry rely with contcts «d...» NC Dely element (negtive temperture coefficient) e herml overlod contct OV... Oil vlve EK1 Lockout reset utton on the urner control QRA... UV flme detector EK2 Remote lockout reset utton R, R1 Control thermostt or pressurestt ION Ioniztion proe R2 Lod controller FR Flme rely with contcts «fr...» RV Control vlve FW Flme supervision SB Sfety limiter G Gs pressure switch S Synchronous motor of the sequence switch GV... Gs vlve SQ... Air dmper ctutor (type reference) (GV) Gs vlve for pilot urner tht is switched off fter UL1 Operting switch of the sequence switch motor the second sfety time (cn only e ccessed when housing cover is H in switch removed) LK Actutor with end or uxiliry switches W emperture or pressure limiter = ctutor trvels to the fully open position Z Ignition trnsformer (mximum mount of ir) * Do not press lockout reset utton «EK...» for more thn z = ctutor trvels to the fully closed position (min. mount of ir) 10 seconds! 10/18
Sequence digrm of sequence switch I II III IV V VI SA t4 t3 t5 SA t9 VII VIII IX X XI t7 t10 XII XIII t11 t1 t8 t12 t6 746102/0901 Switching times (Fctory settings: refer to «ype summry» nd «ordering») LFE1.1... 120 s 60 s Running time of sequence switch t1 8...63 s 4...31.5 s repurge time (djustle) SA 0...9 s 0...4.5 s First sfety time (djustle, setting 0 s for ignition sprk supervision) SA 0...6 s 0...3 s Sfety time for the pilot urner on strtup with ignition sprk supervision t3 3 s 1.5 s reignition time (sfety time for ignition sprk supervision) t4 11 s 5.5 s Intervl etween relese of the first nd second fuel vlve t5 12 s 6 s Intervl etween relese of the second nd third fuel vlve or lod controller t6 (30 + t1) (15 + t1) ostpurge time t7 3 s 1.5 s Dely time t8 t1 + 30 + t11 + t12 t1 + 15 + t11 + t12 Durtion of strtup sequence t9 0...9 s 4.5 s Second sfety time with interrupted pilot urners t10 10 s 5 s reset time for ir pressure check t11 optionl optionl Opening time of ctutor «SA» t12 optionl optionl Closing time of ctutor «SA» ximum permissile fterurn time (from the eginning of «t6») 7 s 3.5 s 11/18
Setting fcilities on the urner control Generl notes Setting elements - rior to mking ny settings, disconnect the urner control from the mins supply - Loosen ll 6 retining screws nd remove the unit cover - he switching cm numering strts from the motor - he cmshft cn e mnully turned to ny position (direction of rottion clockwise when viewed from the sequence switch motor) UL1 Operting switch ON / OFF of the sequence switch motor N1 Cm 1, fixed N2, N3 Cms 2 nd 3, djustle (first sfety time) N4 Cm 4, fixed N5 Cm 5, djustle (second sfety time) N7 Cm 7, fixed N8 Cm 8, djustle (prepurge time) A rogrm indictor disk Setting the prepurge time - Loosen the securing screw of the red cm N8 - urn cmshft mnully until the required prepurge time ppers next to the index mrk (stmped on the sequence switch rcket) - Hold cmshft firmly nd rotte cm N8 until the contct stud ctuted y it jumps out or until the cm runs ginst the stud - ighten the cm securing screw crefully nd then check the djusted time for ccurcy. he djustle time is lso visile through the viewing window when the urner control is in its strt position Adjustment of the setting mrk of the red cm N8 to the time mrks on the lck cm N7 produce the prepurge times shown elow tle. Ι ΙΙ ΙΙΙ N7 N8 7761p04/0698 Cm N8 djusted to... LFE1.1...... cm N7 mrk I t1 = 8 s 4 s II 18 s 9 s III 28 s 14 s Setting t the stop 63 s 31.5 s Fctory setting pprox. 30 s or 60 s pprox. 15s or 30 s 12/18
Setting fcilities on the urner control (cont d) Setting the sfety times he settings re mde y mens of the red cms of the sequence switch. heir time mrks serve s djustment guides. On completion of the settings, the securing screws of the cms should e tightened crefully to prevent indvertent redjustments. First sfety time SA (Opertion without ignition sprk supervision) - Loosen the securing screws of cms N2 nd N3 - Hold cm N1 nd rotte cm N2 so tht its setting mrk ligns with the relevnt time mrk of cm N1 (see illustrtion nd tle; intermedite settings re possile). Secure cm N2 - Rotte cm N3 so tht its setting mrk is ginst the lower stop of cm N2. Secure cm N3 - Check the djusted sfety time. he new sfety time is to e indicted on the plte (setting slot ccessile from the ottom of the unit cover) 7761p07/1296 Cm N2 djusted to... LFE1.1...... cm N1, time mrk I SA = 0 s 0 s II 4.5 s 2.3 s III 9 s 4.5 s Fctory setting Depending on vrint < 2 s III II I N1 N2 N3 First sfety time SA (Opertion with ignition sprk supervision) - Loosen the securing screws of N2 nd N3 - Hold cm N1 firmly, set the setting mrk of cm N2 to the time mrk I of cm N1 nd secure cm N2 - Hold cm N2 firmly, set the setting mrk of cm N3 to the desired time nd secure cm N3 (see illustrtion nd tle) - Check the djusted sfety time Cm N3 djusted to...... the stop in the direction of the rrow... the stop in the other direction SA = 0 s LFE1.1... 0 s 6 s 3 s Fctory setting Depending on vrint < 2 s Second sfety time t9 - Loosen the securing screw of cm N5 nd set its setting mrk to the relevnt time mrk of cm N4 (see illustrtion nd tle; intermedite settings cn e mde) 7761p08/1296 Cm N5 djusted to... LFE1.1...... cm N4, ime mrk I t9 = 0 s 0 s II 4.5 s 2.3 s III 9 s 4.5 s Fctory setting Depending on vrint < 2 s III II I N4 N5 13/18
Connection exmples nd sequence digrms Connection exmples for expnding flme urners Actutor control y the No lod control. When using UV flme detector QRA..., terminl 13 must e connected to erth. LFE1 1 2 13 14 15 161219 18 8 9 4 3 22 21 20 17 6 5 7 11 1 e1 (R) SB H 2 c2 e2 ION EK2 + LF N (p) L L2 d1 e1 1 2 11 R1 z W N LK G e2 c2 Z d1 d1 GV1 GV3 GV2 746103/0207 Luft Gs GV3 LK GV2 22 21 21/d1 18//d1 20 LK "" A B C D E 746104/1196 GV1 Air dmper control (detiled) LK "z" 746105/0301 t11 t1 t12 t11 tn t6 t12 Attention! In the cse of urners with no ir dmper or with n ir dmper not controlled y the urner control, terminls 20, 21 nd 22 must e interconnected nd circuit pth 18--21 ecomes osolete. A t8 B tn C t6 D E F G H I t6 K L 1 Kl. 3 t7 t7 2 17 t11 t1 t12 t1 LK 22/21 SA SA Z 6 t3 t3 GV1 5 t4 t4 GV2 7 t5 t5 GV3 11 13/14 FW 13/15 L2 12 746106/0301 14/18
Connection exmples for interrupted pilot urners On / off control with checked ir dmper opertion. When using UV flme detector QRA..., terminl 13 must e connected to erth. LFE1 1 2 12 13 14 15 16 17 19 18 8 9 4 3 22 20 21 5 6 10 7 11 1 e1 (R) SB H 2 c2 e2 L2 N (p) ION + LF EK2 e2 c2 /c2 L e1 R1 W G d1 BS R2 I IV III II 1 2 11 12 13 14 15 16 17 3 6 z 4 5 7 8 100% 0% 33% 38% 31% 46% LK N (SQ...) GV3 d1 GV2 (GV) Z 746107/0207 Operting switch BS I Nominl lod II Stop III rt lod IV Automtic control Gs GV3 GV2 21/d1/BS/R2 21/d1 22/ A B C DE Luft LK Gs (GV) 746108/1196 18/ 20 "" Air dmper control (detiled) "kl. Fl." "z" t11 t1 t12 t11 746109/1196 A t8 B tn C t6 D E F G H I t6 K L 1 2 Kl. 3 17 t11 t7 t1 t12 LK 22/21 SA Z (GV) 6 10 t3 t4 GV2 GV3 7 11 t5 t9 FW 13/14 13/15 L2 12 t7 t1 SA t3 t4 t5 t9 746110/0301 Legend to the sequence digrm A Strt G-H Opertion A-B Norml strt H Loss of flme B-C Opertion H-I Fult C Controlled shutdown I Reset C-D ostpurging I-K Run in strt position D-E Air dmper closing K Re-strt E-F Burner off time K-L Strtup sequence F Re-strt L 4 Opertion F-G Run in strt position 15/18
Connection exmples for interrupted pilot urners (cont d) LFE... for firing on gs or oil, optionl UV flme detectors cn supervise oth oil nd gs flmes, ut gs flmes cn lso e supervised with ioniztion proes. (17) 1 2 12 13 15 14 16 3 19 4 8 18 9 22 20 LFE1 21 6 5 10 7 11 1 e1 SB H 2 c2 e2 e1/e2 /c2 L /c2 BS2 I II III R1 W BS1 I II III IV 1 2 11 12 z 3 6 d1 R2 13 14 15 16 17 OV3 OV1 d1 OV2 BS2 I II III (R) L2 N (p) + LF EK2 100% 0% G LK N 4 5 7 8 33% 38% 31% 46% (SQ...) GV3 Z GV1 GV2 746111/0901 When using UV flme detector QRA..., terminl 13 must e connected to erth. Öl Luft OV2 OV1 LK OV3 Operting switch BS1 I Nominl lod II Stop III rt lod IV Automtic control Gs GV1 GV2 Operting switch BS2 I Gs II Off 746112/1196 III Oil GV3 16/18
Connection exmples for modulting urner control including checked ir dmper control odulting urners designed for the continuous djustment of the urner s output require temperture or pressure control system, in ddition to the stndrd urner control equipment, for exmple: odulting controller emperture or pressure sensor with integrted setpoint djuster Actutor for control of the ir dmper nd the fuel throughput (rtio control) Auxiliry rely Operting switch Control vlve or similr for djustment of the mount of fuel RWF40... Q... SQ... d1 BS RV LFE1 1 2 13 14 15 16 1219 18 8 9 4 3 20 22 21 10 11 17 6 5 7 1 e1 (R) SB H 2 c2 e2 ION EK2 + LF N (p) /c2 L L2 e1 R W G d1 I BS II III LK IV 1 11 2 z RV N SQ... L1 N Q... e2 c2 d1 GV1 Z 746113/0207 When using UV flme detector QRA..., terminl 13 must e connected to erth. Gs Luft RV SQ... GV1 746114/1196 LK Air pressure switch «L» Operting switch BS I Nominl lod II Stop III rt lod IV Automtic control ~ e (17) 3 4 8 9 18 19 mx. 5A c L R W 0,1A N (p) 746115/1196 he ir pressure is constntly monitored from urner strt to controlled shutdown. If the set minimum ir pressure is not reched 10 seconds * fter the strt of prepurging (7 seconds ** with the progrm with pre- nd postpurging), or the ir pressure is lost gin ny time therefter, the urner control will initite lockout. If the ir pressure switch «L» is connected s shown in the djcent digrm, the switch is lso utomticlly tested for correct functioning prior to ech strt. If the contct s position is not correct, strtup will e prevented. * (5 seconds with the LFE1.1...) ** (3.5 seconds with the LFE1.1...) esuring circuit for ioniztion current Legend ION - + 14 13 ION Ioniztion proe icrommeter 746116/0207 Attention! Ignition cn hve n impct on the ioniztion current. (ossile remedy: interchnge the ignition trnsformer s primry connections) 17/18
Dimensions Dimensions in mm 116 2 g entry glnd AGG 41041713 (FE) etric entry glnd AGG 13.1 G11;3/4"-16DNF 1 17 A 210 B A SG EK 13,514,5 25 140 25 A B A 7461m01e/1101 4,5 17,2 g entry glnd AGG 41041713 (FE) etric entry glnd AGG13.1 36,7 33 69,7 46,7 C C C 4,5 18,9 17,2 105 139,4 33 33 33 17,7 174 209,4 33 9 17,7 Attention! o remove the urner control from its plug-in se, loosen the 4 screws A. o remove the unit cover, loosen the 2 screws B lso. C: elongted holes for securing the se EK: lockout reset utton SG: viewing window 18/18 2011 Siemens AG Industry Sector Suject to chnge!