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Bradford-White Corp M-2-50T6DS manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    Save this manual for future reference Manual 238-47104-00A SERVICE MANUAL Troubleshooting Guide and Instructions for Service (To be performed ONLY by qua lified servi ce providers) Models Covered by This Manual: Residential Energy Saver: M1& M2(HE) UprightModels. M1& M2 Lowboy Models. M1& M2 UtilityModels. M1& M2 Wall HungModels. Li[...]

  • Page 2

    Table of Con ten ts Page Serv ic e Proced ure Introduction …………………………………………… …………………………. 2 Tools……………………………………………………………………………… 2 General Information ……………………………………………………………… 3 - - - Sequen[...]

  • Page 3

    GENERAL INFORMATION 120 VOLT Ungro unded Grounded (Neutra l ) Grou nding BLACK WHI TE GRE EN 120 0 120 240 VOL T Ungroun ded Ungr ou nd ed Gr ounding BLACK RE D GRE EN 240 120 120 120 ABC N eutral RED BLACK RED 120 120 208 208 208 208 3P h 277 ABC N eutral RED BLACK RED 277 277 480 480 480 480 3Ph /277 1 Ph 120 ABC N eu t r al RED BLACK RED 120 120[...]

  • Page 4

    GENERAL INFORMATION Watt age Limitat ions at Vari ous Voltage s Resid ential E lectric Upright M1 & M2 Series ( Non-Sim ultan eous opera tion) M ax im um Wat ta ge E lement Uppe r/Lo wer Volta g e 3 ,0 00 0 2 1 0 0 0 , 3 / 0 0 0 , 3 6, 000 6 ,00 0/6,00 0 208, 240 6 ,0 00 2 7 7, 480 Re sid en tia l Electric Upright M1 & M 2 Series (Simult an[...]

  • Page 5

    GENERAL INFORMATION Surf ace M oun t Com binat ion Ther most at/ ECO (high limit) 89T Ser ies Ma nual E CO (high limit ) R es et bu tton Tem per at ure con trol D ia l Tem per at ure c ontr ol Dial S urfa ce Mount Th ermos tat 59T Seri es Su rfac e Mou nt Com binat ion Ther most at/ ECO (high limit) 89T Ser ies Surface Mounte d Thermostats Surfa ce[...]

  • Page 6

    SEQU ENCE OF OP ERATIO N R esiden tial and l ight duty commercial electric w at er heat ers a r e des igned to o perate usin g several different o perating m odes . The common m odes and seq uence of o perati on are as follows : 1 . Singl e Element O peration. 2 . Double Element Non-Sim ultaneous Op eration (si ngle phase) . 3 . Double Element Non-[...]

  • Page 7

    Non-Simul taneous and Simul taneous O peration Doub le element el ectric water heater s are de signed to operate in a Non-Simultan eous or Sim ultaneous mod e. Non-Simulta neous Mode: All ows only on e heating element to operate at a time. For exam ple, when the tank is cold, the upp er element is energi zed first, heating th e top of the tank . O [...]

  • Page 8

    SEQU ENCE OF OP ERATIO N Sequence o f Operatio n- Double E leme n t, Simultaneous Ope ration, Single Phase, 4 wire service installation. A 4 wire, dou ble elem ent heater w ired for simult aneous o perati on is es sentiall y two singl e elemen t systems o perating i ndepe ndently. The h e aters are w ired intern ally with two independe nt cir cuits[...]

  • Page 9

    SEQU ENCE OF OP ERATIO N Sequence o f Operatio n- Double Element, Non-Simultaneous Operation, 3 Phase. Line v oltage is appl ied acros s terminals L 1 & L3 of up per thermos tat. Likewise, Li ne voltag e is appl ied to terminal L3 of low er thermos tat. ECO in both upp er & lower t her m os tat is close d, so there is voltage at termina l L[...]

  • Page 10

    SEQU ENCE OF OP ERATIO N Line vol tage is a pplied ac ross term inals L1 & L3 of uppe r thermostat . Line vol tage als o extends t o term inal L1 of low er thermostat. Also , line vo ltage is applied to ter m i nal L3 of lowe r thermostat . ECO in both upper & lower th erm os tat is c losed, so there is voltage at terminal L4 of both thermo[...]

  • Page 11

    SEQU ENCE OF OP ERATIO N Sequence o f Operatio n- Dou ble Eleme n t, Non-Simu ltaneous Operatio n, Single P hase, Off Peak. Some el ectric uti lity compan ies will o ffer disco unts for using electrici ty during “ Off Peak” Ti mes of the day . The system allow s the use of an “Off Peak ” meter , which interrupts power to the lo wer elem ent[...]

  • Page 12

    TROUBLESHOOTING Most common ca use for improper el ectric water heate r op eration can be linked to heating el ement failure. When trou bleshooti ng an electric w ater heater with the incidenc e of “No Hot Water ” or “In sufficient Amo unt of Hot Water ” Its always a good i dea to che ck the heating elements first fol lowing the p r o cedur[...]

  • Page 13

    SYM PTOM PR OBA BLE CA US E COR RECTIVE ACTI ON No Hot Water 1 . No Po we r to hea ter. 2 . Lo ose wire c onne cti ons. 3 . Inope rativ e uppe r heat ing el ement . 4 . Inope rativ e uppe r the rmost at. 5. O pen ECO. 1. In opera tive lo wer he ati ng elem ent. 2. Ther mos tat(s ) set to low . 3. I nope rativ e t hermo sta t(s). 4. Loos e wire c on[...]

  • Page 14

    SERVICE PROCEDU RE RE- I Line Voltage & High Limit (ECO) Testin g WARNING High vo ltage exposure. Use cau tion when making voltag e checks to avoid personal injury. Line Voltage T esting Illustration 2 Il lus tra tio n 3 1. Turn “O FF” power t o water heater . 2. Remov e access cover(s) from front of water heat er. Remov e insul ation and p[...]

  • Page 15

    SERVICE PROCEDURE RE-II Heating Element Testing Step 1. TURN O FF POWER T O W ATER HEAT ER. Step 2. Remove acc e ss cover(s) from front of w a ter heater . Remove insulation an d plasti c cover f rom the rmostat. Step 3. Dis connect w i res from hea ting element. Step 4. Set mult i-me t er to “ohms” setti ng. Step 5. Touch p robes of m ulti-met[...]

  • Page 16

    SERVICE PROCEDURE RE -III Residential Thermostat Testing WARNING High voltage exp osure. Use cau t ion t o av oid per so nal inj ury du rin g t his pr oce dur e. Ill us tra ti on 6 Singl e Element Operation or Double Element, 4 Wire, Simultan eous, Sin gle Phase Operation. Water In Tank Is Cold With Pow er O N . 1 . This procedure assumes lin e vol[...]

  • Page 17

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Non-Simultaneous, Single Phase Operation. Water In Tank Is Cold With Pow er O N . 1. This procedure assumes lin e voltage, E CO and elements are in worki ng ord er. 2. Turn p ow e r “O N” t o water heate r. 3. Set mu lti-meter to “[...]

  • Page 18

    Doubl e Ele ment, N on - Sim ultaneous, Single Pha se Operation (continued). Not Enough H ot Water (continued). 7. Check voltage acro ss termin al L4 of up per thermost at and termi nal 1 of l ow e r thermosta t (see ill ustration 11). A) Rate d voltage N O T present, - check wire connec tion between thermosta ts. B) Rate d voltage IS present, o ka[...]

  • Page 19

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Non-Simultaneous, Three Phase Operation. Water In Tank Is Cold With Pow er O N . 1 . This procedure assumes lin e voltage, EC O an d elements are in worki ng ord er. 2. Turn p ow e r “O N” t o water heate r. 3. Set mu lti-meter to ?[...]

  • Page 20

    Double Element, Non-Simultaneous, Three Phase Operation ( c ontinued). Tank D oes Not Deliver En ough Hot Water (contin ued) 7. Ch eck voltage across te rminal L1 & L3 of lower thermos tat (see il lustration 16) . A) Rated voltage N O T present, check wire connecti on between th ermostats. B) Rated v ol tage is presen t, okay, go to s tep 8. 8.[...]

  • Page 21

    Double Element, Simultaneous, Three Phas e Operation. Water In Tank Is Cold Or Not Enough Hot Water With Pow e r ON. 1. This pr ocedur e ass umes lin e voltage , ECO and ele m ents are in w orking order . 2 . A djust tem perature set ting for both thermosta ts to the h ighest setting . 2. Turn p ow e r “O N” t o water heat er. 3. Set mu lti-met[...]

  • Page 22

    Double Element, Simultaneous, Three Phas e Operation (c ontinued). Water Temperature In Tank Is A b ove Thermostat Setting. 1. This procedure assumes Lin e voltage , ECO and elements are in worki ng ord er. 2. Adjus t upper and low er thermostat to the lowest settin g . 3. Turn p ow e r “O N” to w ater heate r. 4. Set mu lti-meter to “Volts A[...]

  • Page 23

    Double Element, Non-Simultaneous, Single Phase, Off Peak Oper ation. W ater In Tank Is Cold With Pow er ON. 1. This pr ocedur e ass umes lin e voltage , ECO and ele m ents are in w orking order . 2 . Turn p ow e r “O N” to w a te r heater. 3. Set mu lti-meter to “Volts AC ”. 4 . Ch eck acro ss terminals L4 and T2 o f upper thermostat (see i[...]

  • Page 24

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Non-Simultaneous, Single Phase, O ff Peak Opera tion. (continued) N ot Enough H ot Water (continued). 7. Check voltage across te rminal T4 o f upper thermosta t & T2 of lower The rmo s tat. (see ill us trat ion 27). A) Rated voltage [...]

  • Page 25

    SERVICE PROCEDU RE RE -IV Light Duty C o m m ercial The rmos tat Testing WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. D ouble Element, Non-Simultaneous, Single Phase O peration. W ater In Tank Is Cold With Pow er ON. 1. This procedure assumes lin e voltage, E CO and elements are in worki ng order.[...]

  • Page 26

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Non-Simultaneous, S ingle Phase Operation (continued) T ank D oes Not Deliver En ough Hot Water (continued). 7. Ch eck voltage across te rminal L3 of up per thermosta t & T2 of lower The rmostat. (see ill us trat ion 32). A) Rated vo[...]

  • Page 27

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Simultaneous, Single Pha se Operation. Water In Tank Is Cold Or Not Enough Hot Water With Pow e r ON. 1. This pr ocedur e ass umes lin e voltage , ECO and ele m ents are in w orking order . 2. Adjust tem perature set ting for both thermo[...]

  • Page 28

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Simultaneous, Single Pha se Operation (c ontinued) Water Temperature In Tank Is A b ove Thermostat Setting. 1. This procedure assumes lin e voltage, E CO and elements are in worki ng ord er. 2 . Adjus t upper and low er the rmostat to th[...]

  • Page 29

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Non-Simultaneous, Three Phase Operation. W ater In Tank Is Cold With Pow er ON. 1. This procedure assumes lin e voltage, E CO and elements are in worki ng ord er. 2 . Turn p ow e r “O N” to w a te r heater. 3. Set mu lti-meter to “[...]

  • Page 30

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Non-Simultaneous, Three Phase Operation ( c ontinued). Tank D oes Not Deliver En ough Hot Water (continued). 7. Ch eck voltage across te rminal L1 of up per thermosta t & T2 of lower The rmostat. (see ill us trat ion 44). A) Rated vo[...]

  • Page 31

    WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Illu stration 47 Illu stration 48 Double Element, Simultaneous, Three Phas e Operation. Water In Tank Is Cold Or Not Enough Hot Water With Pow e r ON. 1. This pr ocedur e ass umes lin e voltage , ECO and elem ents are i n worki ng order . 2. Adjust tem [...]

  • Page 32

    S ERVICE PROCEDU RE RE -IV Light Duty C o m m ercial The rmos tat Testing WARNING High voltage exp osure. Use cautio n t o avoid pers onal injury du ring this proced ure. Double Element, Simultaneous, Three Phas e Operation (c ontinued). Water Temperature In Tank Is A b ove Thermostat Setting. 1. This procedure assumes lin e voltage, E CO and eleme[...]

  • Page 33

    SERVICE PROCEDURE RE -V Ther mostat Removal an d Rep lacement Fr ont View Th ermos tat Moun ting The r m ostat Re moval 1. Turn p ow e r “OFF” To water he ater. 2 . Re m ov e access c over a nd insul ation. 3. Re m ov e plasti c the rmostat protecto r from th ermo s tat. 4. Di sconnect w ires fr om thermo stat termin als. It may b e necessar y [...]

  • Page 34

    SERVICE PROCEDU RE RE -VI Heating Element Removal and Repla cement Heating Elem en t Removal 1. Turn p ow e r “OFF” To water he ater. 2 . T urn off col d wate r supp ly to heat er. Con nec t hose to d rain spi got of w at er hea ter an d rout e to an o pen d rai n. O pen a n earb y hot wat er fauce t to vent heat er f or drain ing. Open d rain [...]

  • Page 35

    Page 35 S tep 1. Turn p ower “OF F” to wat er hea ter. Step 2 . T urn of f cold wate r suppl y t o heat er. Con nect hos e to dra in spigo t of wat er hea ter and ro ute to an o pen dr ain. Op en a near by hot wat er fau cet to ven t heat er for dra ining . Ope n drain s pigot o f water he ater a nd allo w h e ater t o drai n to a poin t below [...]

  • Page 36

    Page 36 Ge neric Part s List 1. T&P Relie f V alve 2. He at Tr ap I nsert (Out let ) 3. Hot Wa ter O utl et/ Anod e 4. Cover C ond uit /Grou nd 5. Junc tion B ox C over 6. Heat T rap In sert ( Inl et) 7. Cold Wate r I nlet Dip Tube 8. Ther most at Prot ecto r (La rge ) 9. T herm osta t w/ High Li mit (8 9T33 ) 10. The rmos tat Mou nti ng Br ack[...]

  • Page 37

    NOTES 37[...]

  • Page 38

    NOTES 38[...]

  • Page 39

    NOTES 39[...]

  • Page 40

    Email parts@bradfordwhite.com techserv@bradfordwhite.com www .bradfordwhite.com[...]