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4.6
FUNCTIONING ANOMALIES
5
When. there. is. a. functioning. anomaly,. an.
alarm.appears.on.the.display.and the blue
luminous bar becomes red.
1
Descriptions.of.the.anomalies.with.relative.
alarms.and.solutions.are.given.below:
2
–. FUMES DISCHARGE ANOMALY ALARM
01 (fig. 24)
. OPEN.COMBUSTION.CHAMBER.(OF):
. The.display.shows."ALL.01".
. The. fumes. thermostat. has. intervened..
2
The.boiler.stops.for.an.enforced.period.of.
10.minutes..At.the.end.of.this.period,.the.
boiler. re-attempts. ignition.. If. the. ano-
maly.is.repeated.three.times.in.24.hours,.
the.symbol.RESET.starts.flashing..Press.
the.key.
of.the.controls.(2).to.start.
up.the.boiler.again.
.
. SEALED.COMBUSTION.CHAMBER.(BF):.
. The.fumes.thermostat.has.intervened..If.
the. condition. causing. the. problem. per-
sists. for. two. minutes,. the. boiler. stops.
for.an.enforced.period.of.thirty.minutes..
At. the. end. of. this. period,. the. boiler. re-
attempts.ignition..
2
2
2
–. LOW WATER PRESSURE ANOMALY
ALARM 02 (fig. 24/a)
. If.the.pressure.detected.by.the.transdu-
cer.is.lower.than.0.5.bar,.the.boiler.stops.
and. the. display. shows. the. . alarm. "ALL.
02".
. Bring.the.pressure.back.to.normal.by.me-
ans.of.the.load.faucet.(turn.anticlockwise.
to. open). until. the. pressure. indicated. by.
the.transducer.is.between.1.and.1.5.bars.
2
. ON. COMPLETION. OF. THE. OPERATION,.
MAKE.SURE.THE.LOAD.FAUCET.IS.CLO-
SED.
. If.the.load.procedure.has.to.be.repeated.
several.times,.it.is.advisable.to.check.that.
the.
seal.
of. the. heating. circuit. is. intact.
(check.that.there.are.no.leaks).
Circuito
3
riscaldamento 2
4
Circuito
riscaldamento 3
(impianto tre
zone)
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 2
–. HIGH WATER PRESSURE ANOMALY
ALARM 03 (fig. 24/b)
. If.the.pressure.detected.by.the.transdu-
cer.is.more.than.2.8.bar,.the.boiler.stops.
and.the.display.shows.anomaly."ALL.03".
Circuito
Circuito
riscaldamento 3
Circuito
riscaldamento 3
(impianto tre
riscaldamento 2
(impianto tre
zone)
zone)
Circuito
riscaldamento 3
(impianto tre
zone) Fig..24
Circuito
–. HEATING SENSOR ANOMALY ALARM 05
riscaldamento 2
(fig. 24/d)
.
If.the.heating.sensor.(SM).is.open.or.short.
circuited,.the.boiler.will.not.function.and.
2
the.display.will.show.the.alarm."ALL.05".
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
Fig..24/a
Apre
Fig..24/b
Fig..24/d
1
2
–. FLAME BLOCK ALARM 06 (fig. 24/e)
. If.the.flame.control.has.not.detected.the.
presence. of. the. flame. after. a. complete.
ignition. sequence,. or. for. any. other. rea-
son.the.card.cannot."see".the.flame,.the.
boiler.will.stop.and.the.display.will.show.
the.alarm."ALL.06"..
.
Press.the.key.
of.the.controls.(2).to.
.
start.up.the.boiler.again.
2
5
1
–. SAFETY
THERMOSTAT
ALARM 07 (fig. 24/f)
2
.
If.the.connection.with.the.safety.thermo-
stat. is. interrupted,. the. boiler.
the. flame. control. will. remain. waiting. to.
be. switched. off. for. one. minute,. keeping.
the.system.pump.on.for.that.period..
. If,.the.thermostat.connection.is.restored.
within.the.minute,.the.boiler.will.start.up.
working.normally.again,.otherwise.it.will.
stop.and.the.display.will.show.the.alarm.
"ALL.07".
. Press.the.key.
of.the.controls.(2).to.
.
start.up.the.boiler.again.
2
2
–. PARASITE FLAME ANOMALY ALARM 08
(fig. 24/g)
. If. the. flame. control. section. recognises.
the. presence. of. flames. also. in. phases.
3
4
ES
PT
ENG
Circuito
riscaldament
Circuito
riscaldament
(impianto tre
zone)
Fig..24/e
3
ANOMALY
will.
stop;.
4
Circuito
riscaldamen
Circuito
riscaldamen
(impianto tre
zone)
Fig..24/f
87
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