. When.it.results.that.the.ZONA.MIX.board.
is.connected.to.the.boiler.
. The.intervention.of.the.safety.thermostat.
switches.the.mixed.zone.plant.pump,.the.
mix.zone.valve.closes.and.on.the.display.
the.anomaly.ALL.22..During.this.anomaly.
the.boiler.continues.to.function.normal-
ly..
–. DELIVERY PROBE BREAKDOWN ANO-
MALY SECOND MIXED ZONE “ALL 23”
(fig. 23/s)
. When.it.results.that.the.ZONA.MIX.board.
is. connected. to. the. boiler. and. the. deli-
very.probe.is.open.or.short.circuited.on.
the.display.the.anomaly.ALL.23.appears..
During.this.anomaly.the.boiler.continues.
to.function.normally..
–. SOLAR S1 COLLECTOR PROBE BRE-
AKDOWN ANOMALY “ALL 24” (fig. 23/t)
. When.it.results.that.the.INSOL.solar.bo-
ard.is.connected.to.the.boiler.and.the.S1.
solar. collector. probe. is. open. or. short.
circuited.on.the.display.the.anomaly.ALL.
24. appears.. During. this. anomaly,. the.
boiler.continues.to.function.normally..
–. SOLARE S2 BOILER PROBE BRE-
AKDOWN ANOMALY “ALL 25” (fig. 23/u)
. When.it.results.that.the.INSOL.solar.bo-
ard.is.connected.to.the.boiler.and.the.S2.
solar.boiler.probe.is.open.or.short.circu-
ited. on. the. display. the. anomaly. ALL. 25.
appears..During.this.anomaly.the.boiler.
continues.to.function.normally..
–. S3 SOLAR PROBE BREAKDOWN ANO-
MALY “ALL 26” (fig. 23/v)
. When.it.results.that.the.INSOL.solar.bo-
ard.is.connected.to.the.boiler.and.the.S3.
solar.probe.is.open.or.short.circuited.on.
the.display.the.anomaly.ALL.26.appears..
During.this.anomaly.the.boiler.continues.
to.function.normally..
–. SOLAR APPLICATION COHERENCE
ANOMALY “ALL 27” (fig. 23/w)
. When. it. results. that. the. INSOL. solar.
board. is. connected. to. the. boiler. and.
the.hydraulic.configuration.to.the.boiler.
is. incorrect. (PAR. 2). on. the. display. the.
anomaly. ALL. 27. appears.. During. this.
anomaly,.the.boiler.continues.to.function.
normally. and. only. the. solar. collector.
antifreeze.function.is.active.on.the.solar.
board...
–. COMPATIBILITY INPUT (S3) ANOMALY
ONLY FOR SYSTEM 7 “ALL 28” (fig. 23/y)
. When.a.probe.is.connected.instead.of.a.
clean. contact. on. entry. S3. the. board. on.
display.shows.the.anomaly.ALL.28..Du-
ring. this. anomaly. the. boiler. continues.
to.function.normally.but.for.the.board.is.
active.in.the.solar.anomaly,.the.function.
is.only.available.antifreeze.collector.
–. NUMBER OF CONNECTED BOARDS
ANOMALY “ALL 29” (fig. 23/z)
. When. the. number. of. connected. boards.
does. not. correspond. to. the. number. of.
boards.set.in.the.card.(PAR.40).or.there.
is.a.default.of.communication.with.it,.on.
the.display.the.anomaly.ALL.29.appears..
During. this. anomaly,. the. boiler. conti-
nues.to.function.normally....
ATTENTION: If the display visualizes “ALL
01” the anomaly can be caused by an elec-
tric problem (main PCB or wiring).
107
ES
PT
ENG
Fig..23/r
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/s
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/t
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/u
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/v
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/w
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/z
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Apre
2
2
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig..23/y
Summary of Contents for MURELLE EV HE 12 T
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