User manual VAILLANT VCW 20 1 T3W

[. . . ] for Instructions Installation Servicing and Vaillant Combined appliances for heating and domestichot water VCW2Ol1 W T3 GC-No. O44 01 Centralheating Domestichot water This aoolianceshall be installedin accordancewith the relevant Codes of Practiceby BritishGas or by an authorizedinstaller C O R G Im e m b e r ) These instructions should be left near the gas meter when the installation is completed. Contents P4e 1 . lnstallation of boiler Water circulation system and testing Commissioning 7. Short list of ports 1 1 . Technicaldata 2 2 4 1 lntrcduction The Vaillant csnbi boiler is a wall-rnqrrH natural draught open-flued (or in the case d VCW-sine, room-sealed) boiler with buifr it instantaneous domestic hot water heater, "TechnicalDda-. [. . . ] Remove the thermo couple by pullingdown and taking off the high ten6ionlead from the ignitionelectrode. L 28 l, lrcrer the retainingscrews (T) and remove Cileanbumers, injectorsnozzlesand trcs. certbly with a light brushor a vacuum il CEE'. Fbsenble in reverseorder, replacingthe m-r bumergasketif necessary. Fig. 48 82. 1. 2 Open llued appliance Remove bumers by levering off burner bar with a screwdriver. Remove thermo-couple probe by pulling downwards from pilot assembly so that probe disengaged from circlip. Remove burner bar by unscrewing nut (E). Cleanburners injectors a lightbrushor and with vacuum cleaner. Reassemble reverse in order, replacing mainburnergasketif necessary. 29 of 8. 2. 2Cleaning lint arrestor (open fluedaPPliances) downward by the Remove lintarrestor pulling of the partwhichis nearthe connections the appliance. Reassemble reverse 8. 3 Cleaning of main heat exchanger 8. 3. 1 Balanced flued aPPliances Removeburneras under8. 2. 1. 1. Slackenthe 2 screws holdingthe flue hood and slide hood up as far as possible. Remove sensor (3) of overheat cut-off device from pocket on left hand side of heat exchanger. Undo union nuts (G) on heat exchangerunionsand slackenlockingnuts (H) above them. Clean heating body especially fins carefully with hot waier, detergents and brush. st-raighten 8. 3. 2 Open flued aPPliance Remove burner assembly as under 82. 1 . 2. Slacken the 2 screws holding the draught diverterand slide draughtdiverterup as far as possible. Remove sensor (3) of the overheat but-offdevicefrom the pocketon left hand side of the heat exchanger. Undo union nuts (G) on the heat exchangerunionsand slackinglocking nuts (H) abovethem. Removeheat exchanger' fins carefully clean heatingbody and especially with hot water, detergent and brush. st"raighten L 30 -:_Tovethe venturi in -a-c connection tubesituated the riqht_ of the heating O"Ov. b'nZci :, :. e ando-ring, boreand-repla6" - -gcessary. clean ;_*;; =;lp9emble . . in reverse oroer, ensurino A:shers - J rlue . arefittedin heat "". n", ig"i'r;;;X : ductengaged spigot flr; 6rrn*;;;i in in 8. 4Descaling domesticheatexchanger of removethe . 1"_. -:y'q"nd tl saus" t-n"', i:", ru i:Ji:?"T; -nscrewing 2 tubing the nuts. 6et-tei;;;";i For 111:l]r_etcessarytodescatethedomestic-heat excnanger arerwardswith clean water. 3ea:semble in reverse oroer using new /yashers. the nuts(K) -o_ lng_ 3 u. nion . 1?I--qy9 rarn screwsl). Descale "io-ir, "'"2 ( b, jr". ti" rlt"?descating agents rinl-e :11e_: ptoryetary anO ?y :o the connections. reriove the b;;;;e;;fi;; tne ;;;ily =i:"^ p^y . unscrewing S retatning : ":tess to unscrew i:^, , !:tl retaining theconnections :ne tower frame. 8. 5 Cleaning of water section I?_-l"Toy. q. (N) and the external- (M)";"i;; connections and loosenthe screw (L). Open the water section. [. . . ] is lug' adiustment necessary' by lfthe microswitchis notoperated the contact an oDeration switchotf warmwatertap (apglign-ce^9. t1!ot openthe For this Durpose, bv meansof a ]lghten tnJiiri oi tne'iwititr'roit(topol flowsivitch) mainswitch). frg:::Jlli:"":H LgftT#';lT'lJ$s'#"HlFr'IH!. "* )li, j"i notiouin tn" casingof the microswitch' 55 Note 13: See tigure 99 for micro switch Ml' 9. 6 Sheet 6: Check Operation of Domestic Hot Water System (Heatingswitch in position0 switchfor domestichot water in positionZll Can Pilotbe lit? lamp in Main Switchgive 1 light?-z Heating \ Switchto l. Main Burner Set Heatinq Switchlo "o-" and draw hot water Go to sheet 1 Go to sheel 2 Go to sheet 3 Note 14: For this purpose, open the control box as described in Note . l and remove front panel. Thus the micro swilch is accessible and the movement of the switch Dinof the water section can be observed. the switch pin must move and operate the micro switch via the switch lever which can be adiusted. [. . . ]