Cleaning And Maintenance - Sime AQUA 25 ErP LN Instrucciones Para El Instalador

steps.shown.in.fig..13.
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. 14)
To. dismantle. the. burner. from. the.
boiler.door,.remove.the.screw.(fig..14).
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.
SCREW
VITE
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. 15)
Use.an.adequate.swab.for.cleaning.the.
smoke.ducts.of.the.boiler..After.clean-
ing,. position. the. circulators. in. their.
original.position.(fig..15).
4.7.2 Cleaning combustion head
(fig. 16)
The.combustion.head.is.cleaned.in.the.
following.manner.(fig..16):
–. Disconnect. the. high. tension. cables.
from.the.electrodes.
–. Unscrew. the. fixture. screws. of. the.
Fig..14
RONDO' 3/4 OF
ESTELLE 3/4 OF
RONDO' 5/6 OF
ESTELLE 5/6 OF
circulator.support.and.remove.it.
–. Brush.the.propeller.delicately.(tur-
bulence.disc).
–. Carefully. clean. the. photo-resist-
ance. of. eventual. deposits. of. dirt.
deposited.on.its.surface.
–. Clean. the. remaining. components.
of.the.combustion.head.of.eventual.
deposits.
–. Upon. completion. re-assemble. the.
unit.in.the.opposite.way.as.described.
above. taking. care. to. respect. the.
indicated.measurements.
CORRECT.POSITION.ELECTRODES
CORRETTA POSIZIONE ELETTRODI
A
Fig..15
Fig..16
83