4.5
MAINTENANCE
To. guarantee. functioning. and. efficiency. of.
the.appliance,.in.respect.of.the.legal.provi-
sions.in.force,.it.must.be.regularly.checked;.
the.frequency.of.the.checks.depends.on.the.
type. of. appliance. and. the. installation. and.
usage.conditions.
In.any.case,.it.should.be.inspected.at.least.
once.a.year.by.a.qualified.technician.
Carry. out. the. cleaning. of. the. generator. in.
the.following.way:
–. Turn.the.main.switch.off.to.stop.electric.
power.reaching.the.boiler.and.close.the.
gas.feed.cock.
–. Remove. the. outer. casing. and. the. gas.
burner. manifold. unit.. To. clean. the. bur-
ner,.blow.in.a.jet.of.air,.so.as.to.remove.
any. dust. particles. that. may. have. accu-
mulated.
–. Clean.the.heat.exchanger,.removing.any.
dust. or. residue. from. combustion.. When.
cleaning.the.heat.exchanger.or.the.bur-
ners,.chemical.products.or.steel.brushes.
MUST.NOT.BE.USED.
. Make. sure. that. the. tops. of. the. burners.
5
with. the. holes. are. free. from. encrusta-
tions.
–. Reassemble.the.items.removed.from.the.
boiler,.making.sure.to.follow.the.correct.
sequence.
1
–. Check.operation.of.the.main.burner.
–. After.assembly.of.all.the.gas.connections,.
these. must. be. tested. for. soundness,.
using. soapy. water. or. appropriate. pro-
2
ducts..DO.NOT.USE.NAKED.FLAMES.
–. Do. not. use. calcium. chloride. to. treat.
the. plastic. component. during. generator.
maintenance..
4.5.1
Chimney sweep function (fig. 22)
To. check. boiler. combustion,. press. the.
installer's.key.
.for.a.few.seconds..
The.chimney.sweep.function.will.switch.on.
and.will.continue.for.15.minutes..From.that.
moment,. the. boiler. will. start. working. in.
heating.mode.at.maximum.power,.with.cut.
off.at.80°C.and.re-ignition.at.70°C.
Before activating the chimney sweep fun-
ction make sure that the radiator valves or
eventual zone valves are open.
The. test. can. also. be. carried. out. with. the.
boiler.working.in.D.H.W..mode..
For.this,.after.activating.the.chimney.sweep.
function,. open. one. or. more. hot. water. fau-
cets.. Under. these. conditions,. the. boiler.
5
5
will. function. at. maximum. power. with. the.
D.H.W.. kept. at. between. 60°C. and. 50°C..
During.the.test,.the.hot.water.faucets.must.
remain.open.
3
If. the.
key.
. and.
.
are. pressed. during.
the. 15. minutes. of. the. chimney. sweep. fun-
1
1
ction,.the.boiler.will.be.brought.respectively.
to.maximum.and.minimum.power.
5
The chimney sweep function will automa-
2
2
tically switch off after 15 minutes or when
3
. is pressed again.
the key .
4
4
1
3
[TVw]
55
50
4
45
40
35
30
25
20
TVw. Flow.temperature.setpoint
Tag.
x.
A.
B.
4.5.2
Operation floor drying (fig. 23)
3
The. operation. floor. drying. keeps. the. floor.
at. a. pre-established. temperature. profile.
and. it. is. activated. only. for. those. systems.
combined. with. the. mixed. zone. card. code.
8092233.. The. temperature. profiles. can. be.
selected.by.means.of.the.installer.parame-
ter.PAR.43:.
0.=.Not.activated.function
0
1
5
7
1
5
X
A
1
A + B
Period.in.days
Start.day
Functional.heating
Floor.curing.heating
Fig..22
10
15
18
B
25
Fig..23
1.=.Curve.setting.A
2.=.Curve.setting.B
3.=.Curve.setting.A.+.B
The. turning. off. of. . the. function. happens.
clicking.on.the.button.OFF.(return.of.PAR.43.
to.the.value.0).or.automatically.at.the.end.of.
the.function..
The. set. of. the. mixed. zone. follows. the.
development. of. the. selected. curve. and.
ES
PT
2
ENG
[Tag
]
85