4.4
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.bur-
ner. manifold. unit.. To. clean. the. burner,.
Apre
blow. in. a. jet. of. air,. so. as. to. remove. any.
dust. particles. that. may. have. accumula-
ted.
–. 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.
3
boiler,.making.sure.to.follow.the.correct.
sequence.
1
–. Check.operation.of.the.main.burner.
–. After.assembly.of.all.the.gas.connections,.
2
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.
4
the. plastic. component. during. generator.
maintenance..
4.4.1
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.
Fig..22
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.will.
5
5
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
3
If.the.key.
.and.
.are.pressed.during.the.
15.minutes.of.the.chimney.sweep.function,.
1
1
the. boiler. will. be. brought. respectively. to.
5
maximum.and.minimum.power.
The chimney sweep function will automati-
cally switch off after 15 minutes or when
2
2
3
. is pressed again.
the key .
4
4
1
4.4.2
Cleaning the filter "Aqua Guard
Filter System" (fig. 23)
2
To.clean.the.filter,.close.the.delivery/return.
on/off.taps,.turn.off.the.power.to.the.control.
panel,. remove. the. casing. and. empty. the.
4
boiler.using.the.drain.provided..
Place.a.container.for.collection.underneath.
the. filter,. unscrew. the. cap. and. proceed. to.
clean. the. filter,. removing. impurities. and.
limestone.deposits..
Check.the.seal.o-ring.before.reassembling.
the.cap.with.the.filter.
2
4.4.3
Operation floor drying (fig. 23/a)
The.operation.floor.drying.keeps.the.floor.at.
a. pre-established. temperature. profile. and.
it. is. activated. only. for. those. systems. com-
bined. with. the. mixed. zone. card. ZONA.MIX.
code. 8092234.. The. temperature. profiles.
can. be. selected. by. means. of. the. installer.
parameter.PAR.43:.
[TVw]
55
50
45
40
35
30
2
25
20
0
1
5
X
A
1
TVw.
Flow.temperature.setpoint
Tag.
Period.in.days
x.
Start.day
A.
Functional.heating
B.
Floor.curing.heating
0.=.Not.activated.function
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.deve-
lopment.of.the.selected.curve.and.reaches.
a. maximum. of. 55°C.. During. the. function.
Circuito
all. the. other. heating. demands. are. ignored.
riscaldamento 2
(heating,. sanitary,. antifreeze. and. chimney.
sweep)..
During. the. functioning. the. display. shows.
the. remaining. days. for. the. completion. of.
Circuito
the.function.(example.mains.digits.-15.=.15.
riscaldamento 3
(impianto tre
days. lack. to. the. end. of. the.
zone)
diagram. fig.. 23/a. reports. the. development.
of.the.curve.
ATTENTION:
- Observe the relevant standards and
regulations of the floor manufacturer!
- Proper functioning is ensured only when
the plant is correctly installed (hydrau-
lic system, electrical installation, set-
tings)! If not observed, the floor might
get damaged!
7
1
5
10
B
A + B
ENG
Fig..23
function)..
The.
15
18
[Tag
]
25
Fig..23/a
85
ES
PT