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Bradford-White Corp MITW -12 / -15 manual

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Table of contents for the manual

  • Page 1

    (To be performed ONLY by qualif ied service providers) Manu al 472 16A Sav e this m anua l for fu ture r efere nce In st ru c t io n s f o r: TTW 1 Unive rsa l Serv ic e Repl ac emen t B low er K it P/N 2 65- 47200-0 0 T h e Blo wers on the F ollowing Wa ter Heaters are Serv i ced by This K it: (F or ful l mod el numbe rs, se e pa ge 2. ) MIT W - 1[...]

  • Page 2

    Or igina l Bl ower’ s P/N Water He ater Mode l Numbers Servi ced b y T his Ki t Model Number s Refere nce Page 2 Water Heater Mode l N um b ers MITW - 10 Ser ies MIT W -1 2 / -15 Serie s M1 TW Ser ie s MITW 40L*LN 10 MI TW40L*C X10 MITW 50L*LN 10 MI TW50L*C X10 MITW 40L*EN 12 MI TW40L*B N12 MI TW40L*C X12 MITW 50L*EN 12 MI TW50L*B N12 MI TW50L*C [...]

  • Page 3

    Par t Numb e r Qt y De s cr i p t i on Mod e l s U s e d O n : 1 265-47195- 00 1 U ni ve rs a l B lo w e r A l l 2 239-47194- 00 1 Wi r e H a r ne s s MI TW - 12/15 Se r i e s MI TW - 12 / - 15 S e r ie s 3 239-47193- 00 1 Wi r e H a r ne s s MI TW - 10 Se rie s MI TW - 10 Se rie s 4 239-46263- 00 1 2 " Exha us t A da pte r & V e nt Te r m[...]

  • Page 4

    Tools Requ ired Page 4 ¼" N ut Drive r 5/16" Nut Driver Slotted Screwdri ver Ph ilips S crewdriv er Hammer 1/8" Drill Bit Drill Channel Lock Pliers Needle N ose Plie rs Tape (pr eferably s cotch or mask i ng) PVC Pri m er / Cement Wire Cut t ers Wire Stripper s Wire B rush Hacksaw[...]

  • Page 5

    Br ad ford W hi te TTW 1 Un ive rsa l Se rv ic e Rep lacem ent Blow er Kit P/N 265-4 720 0-00 Table of Con tents Pag e 5 Kit Components 3 Tools Required 4 M IT W - 10 Se r i es W at e r He at er s : 6 MITW40L *LN1 0, MI TW40L*C X10, MITW50 L*LN10, MITW50L *CX10 MITW -12 / -15 Ser ies Water Hea ters: 12 MITW40L *EN1 2, MI TW40L*B N12, MITW40 L*CX1 2[...]

  • Page 6

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -10 Ser ies Page 6 Step 1. Unp lug water heat er fr om wall ou tlet. Step 2. Det ach blower wire ha rness f rom recep tacle loca ted in t he jacket h ead. Step 3. Discon nect the vent pip e and adapter tha t are connected to the outlet of the blower. Remove p ower cor d fr om o utl et. Unplug blow[...]

  • Page 7

    Step 6. Create th e new mounting hole loca tions for the new universal repl aceme nt blower . Use template supplied with manual. a. ) On the tem plate, P/N 23 8-47 197-00, the ( 3) circular se ctions for the wa ter conne ctions and flue h ave alre ady been removed. Also, t he dotted lines fro m the side of th e paper ar e per forated for easy te ar[...]

  • Page 8

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -10 Ser ies Page 8 Step 8. Instructi ons to remove power co rd from new univer sal blow er: a.) Unscrew the (3) Philips h ead scr e ws on th e blower access cove r an d rem ove the cover. K eep the cover and screws f or future u se. b.) Inside the access compartm ent, follow the b lack wire from t[...]

  • Page 9

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -10 Ser ies Pag e 9 Sque eze bush ing to remove powe r c ord from blowe r. Push in bot h si des of the bushi ng with pl iers to re m o ve. Step 8. c.) Just b e low the crimp connector , cut the (3) white (neutr al) wire s. Remove the w hite po wer cor d lead from the b undle. Th en, str ip the e n[...]

  • Page 10

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -10 Ser ies Page 10 Step 10. Now t hat the univer sal bl ower is prope rly modi fied f or a -10 seri es water hea ter, the blo wer can be pr operly positioned and secured on top of the water heater. T o pla ce the blower o n the water he ater, feed the blower from around th e backside of the w ate[...]

  • Page 11

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -10 Ser ies Page 11 Step 14. If necessar y, re-rou te the vent pip e such that i t can be properl y seat ed in the top portion of the vent a dapter. Step 15. Be sur e that both clamps on the ve nt adapter are firmly t ightened , secur ing the bl ower , vent adapte r , and vent pip e togethe r. Ste[...]

  • Page 12

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -12 / - 15 Series Page 12 Step 1. On the w at er heater’ s g as control, turn the power switch t o the “Off” position. Step 2. Unp lug the water h eater from w all outlet . Step 3. Discon nect the vent pip e and adapter tha t are con nected to the outl et of the blo wer. Remove power cord f [...]

  • Page 13

    Unplug blo wer harn ess fr om jacket head rec eptacle by pinc hing t he connec tor. Unscre w ( 3) screw s th at hold blower to the ja c ket head. Warning: Failure to locate the blower correctly will resul t in im prop er wate r hea ter o perat ion. Step 4. Remove th e screws, qty. (3 ), tha t secure the bl ower to the j acket head. Step 5. Discon n[...]

  • Page 14

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -12 / - 15 Series Page 14 Step 8. Instal l the f lue rest rictor, P/N 239-47 191-00, fir mly on th e flue. It ma y be necessa ry to lightly tap d o wn the flue restricto r. Be sur e to t ap it evenly and straight d own. Wire brush the top of th e wat er he ater if rust o r corrosion e xis ts. Warn[...]

  • Page 15

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -12 / - 15 Series Page 15 Step 9. b .) Inside the a ccess compartment, fo ll ow the b lack wire from t he power cord until you r each the flag t ermin al attach ed to the e nd of the wire. Disconnect black w ire from t he back of the power in let conne ctor. c.) Just b elow the cr imp connector , [...]

  • Page 16

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -12 / - 15 Series Page 16 Step 9. f. ) Verify th at all electric al conne ctions have b een modified, as pre viously indicated . Al so , verify that th e pre ssure switch tubing i s co nnected to the p ressure tap on the blow er and t o the switch itsel f. Ensur e that the tu bing is not kinked. S[...]

  • Page 17

    TTW1 Univer sal Service Repl acement Blowe r MITW -12 / - 15 Series Page 17 Step 12. a .) Position th e junction box, P /N 239- 47196-00, on top of th e water heat er, in front of the blower, and on the si de near est the T&P valve. b. ) Place the transformer, P /N 265- 44072-01, inside the junction box such th at there is sufficient ro om betw[...]

  • Page 18

    Route wires thr ough hol e in juncti on box. Fasten c onnec t or to jun c ti o n bo x. Step 13. Locate n ew blower harne ss, P/N 239-47 194-00, provi ded with the kit. Rou te loose wire end s (yellow, b l u e, white , and green ) thr ough knock-o ut openi ng f rom Ste p 12c. Step 14. Fasten conduit co nnecto r to t he junction box . Step 15. Con ne[...]

  • Page 19

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -12 / - 15 Series Page 19 Step 17. Secure the junction box cover , P/N 239-47 199-00, to the j unct ion box. Step 18. With t he blower and transfo rme r assembl y fastened to the water h eater, the remai nin g ends of the bl ower wir e harness can now be attached with the cord sets to the bl ower [...]

  • Page 20

    TTW1 Un iver sal Ser vice Repl acement Blowe r MITW -12 / - 15 Series Page 20 Step 2 0. If it has not alread y been done, remo ve the ol d vent adapt er from th e existi ng ve nt pipe . Step 2 1. If necessar y, re- route the ve nt pipe such that i t can b e properl y se ated in the top porti on of the ve nt adapter. Step 2 2. Be sur e that both cl [...]

  • Page 21

    TTW1 Univer sal Service Repl acement Blowe r M1T W Se ri e s Page 21 Step 1. On the w a ter heater ’ s gas cont rol, tur n the power switch to the “Off” position. Step 2. Un plug wate r heater from w all o utlet. Step 3. Discon nect blo wer cord sets fr om recepta cles l ocated i n the bl ower h ousing. Remove p ower cor d fr om o utl et. Unp[...]

  • Page 22

    TTW1 Un iver sal Ser vice Repl acement Blowe r M1T W Se r ie s Page 22 Unscr ew both clamps th at hold the adap ter to the blower and vent pipe. Unscre w (3) s crew s that hol d blower to the jack et head. Loosen all (3) sc r ews holding c ov er on. War ning: On ly replace the pressure switch i f th e wat er he ater is being use d in hi gh al titud[...]

  • Page 23

    TTW1 Univer sal Service Repl acement Blowe r M1T W Se ri e s Page 23 Step 7. b.) R epla ce the cu rre nt pressure sw itch ON LY IF the model is for high a ltitude (2 001 ft. & above) . i. For high a l t itude ap plicati ons, t he factor y installed pressure switch must be replaced. The corr ect pre ssure switch is P/N 239- 47192-01 w ith a sett[...]

  • Page 24

    Step 8. b.) P lace th e access co mpartment cover back o n the blower a nd secur e it with its (3 ) screws from Step 7a. Start th e l ower screw fir st, and when doin g so, ma ke sure that t he hole in the p ressure switch’s br acket m atches up to th e hol e in the b lower ho using. Step 9. a.) R emove th e intake boot fr om t he rear of t he bl[...]

  • Page 25

    TTW1 Un iver sal Ser vice Repl acement Blowe r M1T W Se r ie s Page 25 Step 9. c.) R eplace the inta ke boot back onto the blower . If it is necessary, the cab le, or zi p, tie ca n be remo ved from the boot to allow f or easier assembly. Step 10. Now t hat the univer sal bl ower is prope rly modi fied f or a M1TW se ries wate r heater, the bl ower[...]

  • Page 26

    TTW1 Un iver sal Ser vice Repl acement Blowe r M1T W Se r ie s Page 26 Plug power co rd back int o outlet. Tur n sw itch on gas valve to “On” pos it ion. Step 12. Find the rubber vent ada pter kit, P/N 239-46 263-00, provi ded with the blo w e r kit. Install the 2” ve nt ada pter on the ex haust side of the uni vers al blower. Discar d the ve[...]

  • Page 27

    Notes Page 27 NOTES[...]