4.1
DISASSEMBLY
OF OUTER CASING (fig. 14)
The. shell. can. be. completely. disas-
sembled. for. an. easy. maintenance. of.
the. boiler. by. following. the. numeric.
steps.shown.in.fig..14.
4.5
DISASSEMBLY
OF EXPANSION VESSEL
.
The. heating. expansion. tank. is. disas-
sembled.in.the.following.manner:
–..Make.sure.that.the.boiler.has.been.
emptied.of.water.
–..Unscrew. the. union. which. connects.
the.expansion.tank.
–..Remove.the.expansion.tank.
Before.filling.up.the.system.make.sure.
that.the.expansion.tank.is.reloaded.at.
the.pressure.of.0.8.÷.1.bar.
4.6
BURNER MAINTENANCE
(fig. 15 )
To. dismantle. the. burner. from. the.
boiler.door,.remove.the.screw.(fig..15).
To. access. the. internal. part. of. the.
burner,.remove.the.air.lock.unit.held.
in.place.by.two.screws.to.the.sides.and.
remove.the.right.hand.shell,.which.is.
held. in. place. by. four. screws,. taking.
care. not. to. damage. the. O-ring. seal..
OR.
4.7
CLEANING
AND MAINTENANCE
Preventive. maintenance. and. check-
ing. of. the. efficient. operation. of. the.
equipment.and.safety.devices.must.be.
carried.out.at.the.end.of.each.heating.
season. exclusively. by. the. authorised.
technical.staff.
4.7.1 Cleaning smoke ducts
(fig. 16)
Use.an.adequate.swab.for.cleaning.the.
smoke.ducts.of.the.boiler..After.clean-
ing,. position. the. circulators. in. their.
original.position.(fig..16).
4.7.2 Cleaning combustion head
(fig. 17)
The.combustion.head.is.cleaned.in.the.
following.manner.(fig..17):
78
4
5
2
6
3
1
Fig..14
VITE
Fig..15
RONDO' 3/4 OF
ESTELLE 3/4 OF
RONDO' 5/6 OF
ESTELLE 5/6 OF
4 USE AND MAINTENANCE
ATTENTION: Before performing any work on the boiler, make sure
that the same and its components have cooled in order to prevent the
risk of burns due to high temperatures.
SCREW
Fig..16
