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Vulcan-Hart VCE20H 126172 manual

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Table of contents for the manual

  • Page 1

    A produc t of VULCAN- HART LOUI SVI LLE , KY 40201- 0696 For m 24659 ( S ept em ber 1999) - NOT ICE - T hi s Man ual is p repared for t h e u s e o f trai ned Vul can S ervice Technic ians and s hould not be us ed by thos e not pr oper ly q u a li fi ed. If yo u h ave atten ded a Vul can S ervice Sc hool for this product , yo u ma y be qua lifie d [...]

  • Page 2

    ELECTRIC COMBI OVENS Page 2 of 68 T A BLE OF CONTENTS G E N E R A L ............................................................................. 4 Int roduct ion ........................................................................ 4 O p e r a t i o n .......................................................................... 4 Cleani ng .......[...]

  • Page 3

    ELECTRIC COMBI OVENS Page 3 of 68 E L E C T R I C A L O P E R A T I O N .............................................................. 3 7 Com ponent Func t i on ................................................................ 3 7 Com ponent Locat i on ................................................................ 4 0 Sequence of O perat i on ...[...]

  • Page 4

    ELECTRIC COMBI OVENS - GENERAL Page 4 of 68 GENE RA L INTRODUCTION Gene ra l The pr oc edur es i n t hi s m anual appl y t o al l m odel s unless otherwise specif ied. Al l of the i nf orm at i on, illus tra tio n s and speci f i c at i ons cont ai ned i n thi s m anual are based on t he l atest pr oduc t i nf or m at i on av ai l abl e at the t i [...]

  • Page 5

    ELECTRIC COMBI OVENS - GENERAL Page 5 of 68 Elect rical MODEL POWER (KW) MA CHINE A MPERA GE (3 PHA SE/ 60HZ) 1 PER LINE 2 RECOM MENDED CIRCUI T PROTECTION 3 208V 240V 480V 208V 240V 480V VCE6H 9 2 52 21 13 53 01 5 VCE10H 18 50 43 22 70 60 30 VCE10F 18 50 43 22 70 60 30 VCE20H 24 67 58 29 90 80 40 VCE20F 36 100 87 43 125 110 60 NOT ES: 1. Am perage[...]

  • Page 6

    ELECTRIC COMBI OVENS - GENERAL Page 6 of 68 PROGRA M MA BLE STA NDA RD MA NU A L DELU XE MA N UA L OVEN CONTROLS[...]

  • Page 7

    ELECTRIC COMBI OVENS - GENERAL Page 7 of 68 WAT E R CONDITIONING Fur ni shing t he steam generator with t reated wa ter to reduce scal e f orm at i on i s im port ant. Scal e f or m at ion w ill r educe steam out put, cause prem atur e com ponent f ail ure, and shorten equi pm ent l i f e. M ost water suppli es contai n scale pr oduc i ng m i neral[...]

  • Page 8

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 8 of 68 REM OVA L A ND REPLA CEM ENT OF PA RT S RACK GUIDE/F ILTER/EXHA UST A SSEMBLY 1. Tur n t he ov en of f . 2. Rem ov e t he rack s (i f equi pped). 3. Push the rac k gui de t o r ear of ov en t o rem ov e the rac k gui de t abs f r om sl ots in t he ex haust as s emb ly (1 0 le v el)[...]

  • Page 9

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 9 of 68 Rear Panel 1. Rem ov e t he screws f r om t he rear ov en panel . Hold t he panel i n pl ace bef or e r em ov i ng the last panel screw. 2. Acc ess the i nsi de edge of the panel at t he bott om l ef t and di sconnect the gr ound wir e ( i f present). 3. Lower the panel t o rem ov [...]

  • Page 10

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 10 of 68 PROGRAMABLE OVEN CONTROL WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. CA UT ION: C ert ain c omponents in this system are sub ject t o damag e by el ectr[...]

  • Page 11

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 11 of 68 6. Rem ov e t he displ ay/k eypad board f r om t he contr ol panel by r em ov i ng the m ount i ng nut s. 7. Rev er se proc edur e t o i nstal l . MANUA L OVEN CONTROLS WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI[...]

  • Page 12

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 12 of 68 3. Release t he c l i ps on the back of t he m ounti ng ra il. 4. Rev er se proc edur e t o i nstal l . BLOWER A ND M OTO R WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E[...]

  • Page 13

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 13 of 68 Insta llation 1. Mount t he m otor t o the bac k of the ov en. Ti ghten t he bol t s enough to hol d t he m otor i n plac e, but al l ow s om e m ov em ent . 2. Ensure that the m ot or shaf t i s center ed ( use shaft cent er i ng t ool ) i n t he m ot or shaf t hol e and ti ghten[...]

  • Page 14

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 14 of 68 Steam G en erato r 1. Tur n of f the water suppl y t o the steam generator . 2. Rem ov e t he ri ght si de panel as outl ined under “ COVERS AND PAN ELS ” . 3. Rem ov e t he ther m al f use and protec t i v e sl eev e f rom t he heat er t her m owell . 4. Disconnec t the heat [...]

  • Page 15

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 15 of 68 VENT DAMPER A SSEMBLY DIA G RAM STEA M GENERA TOR DRAIN PUMP 1. Tur n of f the ov en and al l ow the steam generator to drai n. WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS[...]

  • Page 16

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 16 of 68 Seali ng Washer 1. Rem ov e t he ri ght si de panel as outl ined under “ COVERS AND PAN ELS ” . 2. Open t he ov en door and r em ov e t he r ac k guide, f i l t er and ex haust assembl y as outl i ned under “ RACK GUIDE/FILTER/EXH AUST ASSEMBLY ” . WA RNI NG: THE FOLLOW I [...]

  • Page 17

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 17 of 68 10 LEVEL SHOW N 5. Rem ov e t he water equal i zat i on t ube. 6. Rev er se proc edur e t o i nstal l . STEA M GENERATOR T ANK 1. Tur n t he ov en of f and al l ow the steam generator tank t o drai n. WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T[...]

  • Page 18

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 18 of 68 OVEN DOOR WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. Removal 1. Rem ov e t he lef t and r i ght si de panel s as outl i ned under “ COVERS AND PANELS[...]

  • Page 19

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 19 of 68 DOOR LA M P WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. 1. Rem ov e t he screws hol di ng t he cov er and gasket. 2. Pul l t he l am p and socket ass em[...]

  • Page 20

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 20 of 68 6 A ND 10 LEVELS DOOR MAGNETIC REED SW ITCH WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. 1. Rem ov e t he ri ght si de panel as outl ined under “ COVER[...]

  • Page 21

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 21 of 68 4. Rem ov e t he spring and posi t i oni ng pl ate f r om the l ocki ng arm . 5. Rev er se proc edur e t o i nstal l and adjust as outl i ned under “ O VEN DOOR ADJUSTMENT ” in “ SERVICE PROCEDURES AND ADJUSTMENTS ” . Disassemb ly 1. Rem ov e t he thr ee screws that secure[...]

  • Page 22

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 22 of 68 POWER SUPPLY BOA RD AND T RANSFORMER WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. 1. Rem ov e t he ri ght si de panel as outl ined under “ COVERS AND P[...]

  • Page 23

    ELECTRIC COMBI OVEN - REMOVAL AND REPLACEMENT OF PARTS Page 23 of 68 OVEN CA VITY DRA IN WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. 1. Open t he ov en c av i ty door . 2. Lif t up t he ov en c av i ty dr ai n grat e to r[...]

  • Page 24

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 24 of 68 SERV ICE PROCEDURES A ND A DJUST M ENTS WA RNI NG: CE RTAIN P ROC EDUR ES IN TH IS SE CTION REQUIR E ELEC TRICAL TEST OR MEASUREMENTS W HILE POW ER IS APPLIED TO THE MACHINE. EXER CISE EX TREME CAUTION AT ALL TIMES. I F TEST POI NT S ARE NOT EASI LY ACCESSIBLE, DISCONNECT POW[...]

  • Page 25

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 25 of 68 NOT E : T he t em perat ur e sel ec t ed i n t he tabl e bel ow w ill als o b e th e h i ghest star ti ng poi nt tem per at ure av ai l abl e, when the steam m ode i s select ed. ELEVATION (FT) T E M PER AT UR E (°F) Sea lev el to 500 212 500 to 1000 211 1,000 to 2,000 209 2[...]

  • Page 26

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 26 of 68 3. The DI S P LAY and LED t est consists of f l ashing all di splays and LED ’ s. T he word “ tes t ” w ill f las h int erm i tt entl y as the t em perat ur e di splay i s tested. Veri f y al l t he DISPLAYS and LED ’ s ar e flas hin g. Th is t es t w ill co nti nue u[...]

  • Page 27

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 27 of 68 3. dSCL i s display ed i n t he t im e di splay and t he num ber of clean cycl es compl eted (del i m i ng of steam generator ) i s display ed i n t he tem perat ure di splay. T he numbe r c annot be cha nged or m odified . P r ess the TIM E key to adv anc e t o the nex t ste[...]

  • Page 28

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 28 of 68 CON VECTION FA N MOTO R TYP E CO NVE CT ION F AN M OT O R VALU E POS IT IO N 1 (M INIM UM ) POS IT I ON 2 (M AX IM UM ) 1 moto r Leroy - Some r (Hanning) 85 5 1 mo to r Broo k-Cro mpto n * 86 0 2 moto rs Leroy -S o mer (Hanning) 46 120 2 mo to rs Bro ok -Crom p ton 30 9 0 1 m[...]

  • Page 29

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 29 of 68 CO DE RE LAY COM PONE NT T ES T C ONDIT I ON 01 K 1 do or moto r Doo r magne tic ree d s witch. Result will be displa ye d a u to ma tic ally . Rota te the do or ha ndle to c ha nge the conditio n. Pre ss and h o ld the T EMP ke y to clo s e the door ; r el eas e t o op en. 0[...]

  • Page 30

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 30 of 68 HEA T ING EL EMENT S WA RNI NG: THE FOLLOW I NG ST EPS REQUIRE POW ER T O BE APPLI ED TO T HE UNIT DURI NG THE TEST. USE EXTREME CAU TION AT ALL TIMES. 1. Measure the v ol tage at the heat ing el em ent term i nal s and v eri f y i t agai nst t he dat a pl at e v ol t age. A.[...]

  • Page 31

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 31 of 68 8. Posit ion t he door rol l er agai nst the “ st r i k i n g ” edge of the l ock i ng arm but do not c l ose the door. A. Observ e the posi t i on of the door r ol l er t o the l ocki ng arm . B. Adj ust the door r oll er so i t m at es at t he “ stri ki ng edge ” (b[...]

  • Page 32

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 32 of 68 A. If t he space is l ar ger at t he hi nge end, rem ov e shim (s) f r om behi nd the hi nges or f rom i n f ront of the door loc ki ng m echani sm. B. If t he space is smal l er at t he hi nge end, add shim (s) behi nd the hi nges or i n f r ont of the door l ock i ng m echa[...]

  • Page 33

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 33 of 68 4. To adj ust the buz z er v ol um e, turn t he buzzer v ol um e adj ustm ent screw unti l t he desired v ol um e i s obtai ned. 5. Once t he buzzer f requency and v ol um e are set to t he desi red l ev el s, press the ST AR T key to sav e the sett i ng and ex i t t he conf [...]

  • Page 34

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 34 of 68 B. If t here i s no w at er t r eat m ent system inst al l ed in t he water l i ne t o t he steam generator , t hen add an am ount of v i negar equal to the ta nk v olume for the combi m odel . S ee t abl e bel ow. 1) Add the v i negar t o t he steam generator through t he op[...]

  • Page 35

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 35 of 68 BAT TERY BA CKUP - PROGRAMA BLE CONTROL The bat t ery bac kup m odul e al l ows t he SRAM ( stat i c ram ) t o r etai n the c onf i gur at i on and pr ogr am inf orm at i on i n m em or y i f t here i s a pow er l oss. The batt er y backup m ay c om e i n a t wo piec e conf i[...]

  • Page 36

    ELECTRIC COMBI OVENS - SERVICE PROCED URES AN D ADJUSTMENTS Page 36 of 68 TW O PIECE CON FIGURATION SHOW N Battery Rep lacemen t WA RNI NG: DISCONNEC T THE ELECTRICAL POW ER TO THE MACHINE AT THE MAIN CIRCUI T BO X. P LA CE A T AG O N THE CI RCUIT BOX INDI CAT I NG T HE CI RCUIT IS B E I NG SERVICED. NOT E : W hen rem ov i ng and repl aci ng the SR[...]

  • Page 37

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 37 of 68 ELECT RICA L O PERA T ION COMPONENT FUNCTION 1A Relay Board ............... T akes the i nputs f rom ov en cont r ol boar d to operat e rel ays that c ont rol power to the c om ponent s. 2 A O v e n C o n t r o l .............. Manages all f uncti ons of ov en operati on, t akes input sig[...]

  • Page 38

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 38 of 68 2SOL D rain C ool Down Sole noid Valv e .......... Admi t s col d water to t he cav i t y drai n and m i x es w i th t he hot t o condense steam and cool t he drai n water bef ore ent eri ng the f loor dr ain. Thi s solenoi d v al v e i s energi zed whenev er t he steam generat or heat i [...]

  • Page 39

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 39 of 68 KM5 (5CO N) ................. Cont act or f or steam generat or heati ng el em ents; ( 7HT R) on 20 l ev el hal f and (8HTR) on 20 lev el f ul l onl y. KM6 (6CO N) ................. Cont act or f or conv ect ion heat i ng el em ent s; ( 1HT R) on 6 l ev el; (1HT R) inner on 10 lev el ; ( [...]

  • Page 40

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 40 of 68 COM P ONE NT LO CATION[...]

  • Page 41

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 41 of 68[...]

  • Page 42

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 42 of 68 SEQUENCE OF OPERATION The conv ec t i on and steam heat ing t heory out l i ned bel ow, cov ers the progr am abl e and m anual ov en c ont rol s unless otherwise stated. He ating Mode and C avity Fan Spe eds KM1 = 1/ 2 power and f ul l speed cav i ty f an(s). KM2 = 1/ 2 power and half spe[...]

  • Page 43

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 43 of 68 On 20 l ev el m ac hi nes (hal f and f ul l si z e) t he heati ng m ode r egulat i on i s the sam e but with t hese addit i onal poi nts to r em em ber : Top and bot t om heati ng el em ents operat e independent l y and c orrespond to t he top and bott om c av i ty t em perat ur e pr obes[...]

  • Page 44

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 44 of 68 Wa ter Injec tion (Hum idifie r) W ater c an be i nj ect i on onto t he conv ect ion heat i ng elem ent s in t he ov en cav i ty and is used in t hese three ways: 1. Autom at i c Cool i ng (Pr ogr am abl e & M anual Control s) - I f the steam m ode i s select ed af ter cooki ng i n c [...]

  • Page 45

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 45 of 68 Pr ogramable Ov en Contr ol Thi s sequence of oper ati on i s writ ten f or t he com bi ov en m odel s that use the pr ogr am abl e ov en cont r ol . The t hr ee heati ng m odes outl i ned bel ow (conv ect i on, steam and com bi ) are f or m anual operati on of t he ov en. T he aut om ati[...]

  • Page 46

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 46 of 68 3. Press the tem p k ey t o set the oper at i ng tem perat ure (def aul t setti ng i s 302 ° F; adjust abl e range i s 35 to 518 ° F). A. Press the tem per at ure up or down keys to adjust t he setti ng. 4. Star t/ S t op key i s pressed to begin t he cooki ng cycle. A. Star t /S t op L[...]

  • Page 47

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 47 of 68 A. Star t /S t op LED of f . B. Steam gener at or heat i ng el em ents de- energi zed. C. Cav i t y f an m ot or(s) de- ener gi zed. D. Steam m ode r em ai ns select ed wit h LED on. E. Cav i t y v ent r em ai ns cl osed. F. The operat i ng t em peratur e rem ai ns as entered unl ess the [...]

  • Page 48

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 48 of 68 4. Cooki ng ti m e ex pi r es. A. Buzz er sounds f or appr ox i m at el y 10 seconds on and 45 s econds of f . The buzzer conti nues to cycle at t hese tim es unti l t he St ar t /S t op key i s pressed. B. Conv ec t i on and/ or steam generat or heati ng el em ent s de-energi z ed. C. Ca[...]

  • Page 49

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 49 of 68 A. Press the tem p up or down keys to set t he Delt a T di f f erenti al . 3. Press probe key. A. Press the ti m e up or down keys to set t he f i nal produc t tem per at ure. 4. Press Start /S t op key t o begin t he cooki ng cycle. NOT E : T he Del t a T di f f erent i al can not be adj[...]

  • Page 50

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 50 of 68 H. Cav i t y v ent open. I. 240VA C suppl i ed t o r elay boar d. J. Steam gener at or em pt y . K. W ater suppl y on. 2. Rotat e t he select or knob t o one of t he c ook i ng m odes (Heat , St eam or Com bi ) t o t urn t he ov en on. A. Ov en cont rol runs a self di agnostic test. 1) ?[...]

  • Page 51

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 51 of 68 Steam M o de 1. Condit i ons ex i st as descri bed i n “ P OW ERI NG CONT ROL ” . 2. W i t h the sel ec t or knob r ot ated t o ST E A M , the cooking cycl e begi ns.. A. Ti m e LED i s on and “ - -:- - “ is dis play ed in the t i m e di splay. B. Cav i t y set poi nt t em perat u[...]

  • Page 52

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 52 of 68 1) Drai n c ool down s olenoi d energi zed. NOT E : W henev er steam generat or heati ng el em ent s are on, t he dr ai n cool down s ol enoi d i s energi z ed. G. Cav i ty f an m otor ( s) energi zed. 3. Press the tem p k ey t o set the oper at i ng tem perat ure (t he l ast t em perat u[...]

  • Page 53

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 53 of 68 NOT E : T o di splay t he act ual probe t em perat ur e f or 5 seconds, press and hold t he pr obe k ey . 3. Press Start key to begi n the cooki ng cycle. A. Star t LED on. NOT E : T he pr obe t em perat ur e c an be adj usted throughout t he cooki ng cycl e by press i ng the probe key an[...]

  • Page 54

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 54 of 68 WIRING DIAG RA M S 6 Lev el[...]

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    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 55 of 68[...]

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    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 56 of 68 10 Lev el[...]

  • Page 57

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 57 of 68[...]

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    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 58 of 68 20 Lev el[...]

  • Page 59

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 59 of 68[...]

  • Page 60

    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 60 of 68 ELECT RIC HEA TER CIRCUITS[...]

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    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 61 of 68[...]

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    ELECTRIC COMBI OVEN - ELECTRICAL O PERAT I O N Page 62 of 68[...]

  • Page 63

    ELECTRIC COMBI OVENS - TROUBLESHOOTING Page 63 of 68 TROUBLESHOOTING WA RNI NG: CE RTAIN P ROC EDUR ES IN TH IS SE CTION REQUIR E ELEC TRICAL TEST OR MEASUREMENTS W HILE POW ER IS APPLIED TO THE MACHINE. EXER CISE EX TREME CAUTION AT ALL TIMES. I F TEST POI NT S ARE NOT EASI LY ACCESSIBLE, DISCONNECT POW ER, AT T ACH TEST EQUIPMENT AND REAPPLY POW [...]

  • Page 64

    ELECTRIC COMBI OVENS - TROUBLESHOOTING SYMPT O M POSSIBLE CAU SES Page 64 of 68 Conv ec t i on heat error l i ght and steam heat error l i ght on. 1. Cav i t y hi gh t em per at ure l i m i t ( s) open (m anual reset) . 2. Fuse F7 open. 3. Steam gener at or t her m al f use(s) open. Cav i t y f an m ot or i noperat i v e and cav i ty f an error l i[...]

  • Page 65

    ELECTRIC COMBI OVENS - TROUBLESHOOTING SYMPT O M POSSIBLE CAU SES Page 65 of 68 No steam generati on but c av i ty f an operates. 1. Cav i t y t em per at ure i s abov e steam tem per at ure set poi nt and ov en i s perf orm i ng aut om at i c c ool i ng bef ore steam generati on can star t. 2. W ater suppl y of f . 3. Steam gener at or t her m al [...]

  • Page 66

    ELECTRIC COMBI OVENS - TROUBLESHOOTING SYMPT O M POSSIBLE CAU SES Page 66 of 68 Tem perat ure di splay f or cav i ty or c ook i ng probe does not change af t er start i ng a c ook cycle. 1. Cav i t y t em perat ur e pr obe ( t herm ocoupl e) short ed. 2. Ov en cav i ty not heati ng - chec k i nc om i ng v ol tage. 3. Contact or(s) m al f unct i on.[...]

  • Page 67

    ELECTRIC COMBI OVENS - TROUBLESHOOTING SYMPT O M POSSIBLE CAU SES Page 67 of 68 Heati ng m ode select or switc h, adjust m ent knob or k ey pad but ton( s) i noperat i v e (m anual c ontrol ). 1. Displ ay/K ey pad/ CPU board m al f unc t i on. Veri f y k ey pad i s f unct i oni ng properl y. See “ DIAGNOST I C TEST MO DE - MANUAL CO NTRO LS ” u[...]

  • Page 68

    ELECTRIC COMBI OVENS - TROUBLESHOOTING SYMPT O M POSSIBLE CAU SES Form 24659 ( S ept em ber 1999) Pri nted i n USA Inner door glass breaks. 1. Gl ass instal l ed i ncor r ec t l y wi t h conduct iv e si de t oward ov en c av i ty . See “ OVEN D OOR ” under “ REMOVAL AND REPLACEMEN T O F PART S ” . Steam gener at or drai ns conti nual l y . [...]