5.5.1Boringtheboilerplate
DrillthecombustionchamberlockingplateasshowninFig.12
(Tab.J).Thepositionofthethreadedholescanbemarkedusing
hethermalscreensuppliedwiththebuer.Tab.J
5.5.2Blasubelength
Thelengthoftheblasubemustbeselectedaccordingtothein-
dicationsprovidedbythemanufactureroftheboiler,andinany
caseitmustbegreaterthahethicknessoftheboilerdoorcom-
pletewithitsfeling.
Forboilerswithfrofluepasses1)(Fig.13)orflameinversio
chamber,aprotectioninrefractorymaterial5)mustbeinserted
betweeheboilerfeling2)andtheblasube4).
Therefractorycanhaveaconicalshape(minimum60°).
Thisprotectivefelingmustnotcompromisetheextractionofthe
blasube.
Forboilerswithawater-cooledfropiece,arefractorylining2)-
5)(Fig.13)isnotnecessary,unlessexpresslyrequestedbythe
boilermanufacturer.
5.6Securingthebuertotheboile
➤Fiheheatinsulationsuppliedootheblasube
4)(Fig.13).
➤Fiheeirebuerootheboilerholepreparedpreviously
(Fig.12),andfastenwiththescrewssupplied.
WARNING
➤Thebuerisdesignedtooperateonlyi
positions1,2,3and4(Fig.11).
➤Installation1ispreferable,asitistheoly
onethatallowsthemaienanceoperations
asdescribedihismanual.
➤Installations2,3and4permitoperationbu
makemaienanceandinspectionofthe
combustionheadmoredifficult.
DANGER
➤Anyotherpositioncouldcompromisethecor-
ectoperationoftheappliance.
➤Installation5isprohibitedforsafetyreasons.
Fig.11
23451
D7739
mmABC
RS510/EBLU335452M18
RS610/EBLU350452M18
Fig.12
D455
Prepareasuitableliftingsystemusingtherings
3)(Fig.13),afteemovingthefixingscrews7)of
hecasing8).WARNING
Thesealbetweenbuerandboilermustbe
airtight.
