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CHARACTERISTICS
3.1
COMBUSTION CHAMBER
DIMENSIONS (fig. 10)
The. combustion. chamber. is. a. direct.
passage.type.and.is.conform.to.the.EN.
303-3.standard.annex.E.
The.dimensions.are.shown.in.fig..10.
An. adequate. protection. panel. is.
mounted.on.the.inside.wall.of.the.rear.
head.of.all.the.models.
L Volume
.
mm. dm
SOLO HE 25 ErP BE
305.
SOLO HE 35 ErP BE
405.
DUETTO HE 25 ErP BE
305.
DUETTO HE 35 ErP BE
405.
3.2
SYSTEM AVAILABLE HEAD
(fig. 11)
The. head. available. for. the. heating.
plant.is.shown.as.a.function.of.the.flow.
in.graph.in.fig..11.
3.3
HIGH EFFICIENCY PUMP
(fig. 11/a)
Press.the.button.(4).briefly.(about.1.sec-
ond).to.select.the.pump.operating.mode..
The.relative.LEDs.will.indicate.each.time.
the.adjustment.mode.(2).and.the.charac-
teristic.curves.set.(3)...
Point. 3.3.4. reports. the. possible. combi-
nations.and.their.meaning..
When. the. LED. (1). signals. a. fault,. the.
pump.stops.and.attempts.to.run.restart.
cycles..If.the.fault.is.solved,.the.pump.re-
starts.automatically.
3.3.1
Venting the pump
The. pump. venting. function. is. activated.
by.pressing.the.button.(4).for.a.long.time.
(3.seconds).and.vents.automatically.
3.3.2
Factory settings
The.factory.setting.is.activated.by.press-
ing.and.holding.the.button.(4).and.disa-
bling. the. pump.. When. the. pump. is. re-
started,.it.will.work.with.factory.settings.
(delivery.state).
3.3.3
Manual restart
When. a. lockout. is. detected,. the. pump.
270
3
17,5
24,0
17,5
600.(58,8)
24,0
500.(49,0)
400.(39,2)
300.(29,4)
200.(19,6)
100.(9,8)
tries. to. start. automatically.. If. the. pump.
does. not. restart,. restart. manually. by.
pressing. the. button. (4). for. a. long. time.
(5.seconds),.then.release.it..The.restart.
594.(58,21)
601.(58,89)
535.(52,43)
492.(48,21)
0
200
400
600
800
function.is.activated.for.a.maximum.of.10.
minutes..After.the.restart,.the.LED.indi-
cation.shows.the.previously.set.values..
If.the.fault.persists,.replace.the.pump..
L
Fig..10
455.(44,59)
400.(39,20)
321.(31,45)
239.(23,42)
1800
1000
1200
1400
1600
PORTATA.(l/h)
FLOW.RATE.(l/h)
Fig..11
1
2
3
4
Fig..11/a
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