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Part number 550-142-850/0115
103
FreeStyle
™
W
ALL
M
OUNT
GAS
-
FIRED
WATER
BOILER
—
Boiler Manual
)GNITOR
33
Maintenance
(continued)
3YSTEMSUPPLY
$OMESTICHOTWATEROUTLET
3 Gas inlet
$OMESTICCOLDWATERINLET
3YSTEMRETURN
0LASTICSCREW#OMBI
BOILERPUMPDRAIN
2EFRACTORY
(EATEXCHANGERCOVER
PLATEANDGASKET
Burner and
BURNERGASKET
(EAT%XCHANGER
3PRING
Figure 140
(EATEXCHANGERCOMPONENTS
Figure 141
(EATEXCHANGERCOMPONENTS
Procedure For Cleaning Of Internal Heat
Exchanger Circuit
4HISPROCEDUREISINTENDEDASAGUIDELINEFORACORRECTRESTORATION
OFTHEFUNCTIONALITYOFTHEBOILERASARESULTOFOPERATIONWITH
UNTREATEDWATERVERYHARD WATERFEEDINGCONDITIONSDEBRISLIME
scale, sludge, metal oxides and, in low temperature systems, also
biomass in the heat exchanger water circuit.
s #AREFULLYREADANDFOLLOWTHEINSTRUCTIONSBELOW
s #LEANINGANDMAINTENANCE MUSTBECARRIEDOUTBYPROFES
-
sionally qualified personnel, in compliance with the current
REGULATIONSANDACCORDINGTOTHEMANUFACTURERSINSTRUCTIONS
Do not carry out any operation on the sealed control parts.
s "EFORECARRYINGOUTANYCLEANINGORMAINTENANCEOPERATION
DISCONNECTTHEUNITFROMTHEELECTRICALPOWERSUPPLYUSING
THESWITCHANDORTHESPECIALCUTOFFDEVICES
s 4HEDISPOSALOF CHEMICALSANDRESIDUESOFCLEANINGSHOULD
be carried out in an appropriate manner, in accordance with
current standards.
s
B
EFOREINSTALLATIONOFTHEBOILERCAREFULLYmUSHALLTHEPIPESOF
THESYSTEMTOREMOVERESIDUESORIMPURITIESTHATCOULDAFFECT
THEPROPEROPERATIONOFTHEUNIT5SECHEMICALCONDITIONERS
THATARE SUITABLEFORTHEPURPOSE4HEPRODUCTSUSEDMUST
NOTBECORROSIVEANDORAGGRESSIVEFORMETALSANDPLASTICS
s )FITISNECESSARYACLEANINGOFTHEHEATEXCHANGERCIRCUITTO
RECOVERYTHEFUNCTIONALITYOFTHEBOILERASARESULTOFOPERA
-
TIONWITHUNTREATEDWATERVERYHARDWATERFEEDINGCONDI
-
tions, sludge, metal oxides and, in low temperature systems,
also biomass in the heat exchanger water circuit, is allowed
THEUSEOFCHEMICALPRODUCTSFORTHECLEANINGIFANDONLYIF
THEMANUFACTUREROFTHESEmUIDSPROVIDESAGUARANTEEWHICH
ENSURESTHATITSPRODUCTSARESUITABLEFORUSEANDCAUSENO
damage to the heat exchanger or other components and /
ORMATERIALSOFTHEBOILERANDSYSTEM
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