Sime MURELLE 25 OF ErP Manual De Instrucciones página 81

3.4 EXTERNAL
SENSOR
(fig. 15)
If. there. is. an. external. sensor,. the. heating.
settings.SET.can.be.taken.from.the.climatic.
curves.according.to.the.external.temperatu-
re.and,.in.any.case,.limited.to.with.the.range.
values. described. in. point. 3.3. (parameters.
PAR.25.for.zone.1.and.PAR.26.for.zone.2).
The.climatic.curve.to.be.set.can.be.selected.
from.a.value.of.3.and.40.(at.step.1).
Increasing. the. steepness. of. the. curves. of.
fig..15.will.increase.the.output.temperature.
as.the.external.temperature.decreases.
3.5 CARD
FUNCTIONING
The. electronic. card. has. the. following. fun-
ctions:
–. Antifreeze. protection. of. the. heating. and.
sanitary.water.circuits.(ICE).
–. Ignition.and.flame.detection.system.
–. Control. panel. setting. for. the. power. and.
the.gas.for.boiler.functioning.
–. Anti-block.for.the.pump.which.is.fed.for.a.
few.seconds.after.24.hours.of.inactivity.
–. Antifreeze. protection. for. boilers. with. an.
accumulation.boiling.unit.
–. Chimney. sweep. function. which. can. be.
activated.from.the.control.panel.
–. Temperature. which. can. be. shifted. with.
the.external.sensor.connected..
. It.can.be.set.from.the.control.panel.and.
is. active. on. the. heating. systems. of. both.
circuit.1.and.circuit.2.
–. Management.of.two.independent.heating.
circuit.systems.
–. Automatic.regulation.of.the.ignition.power.
and.maximum.heating...Adjustments.are.
managed.automatically.by.the.electronic.
card.to.guarantee.maximum.flexibility.in.
use.of.the.system.
–. Interface. with. the. following. electronic.
systems:. remote. control. SIME.HOME.
code.8092280/81,.thermal.regulator.RVS,.
connected. to. a. management. card. of. a.
mixed.zone.ZONA.MIX.code.8092234.and.
card.solar.INSOL.code.8092235...
. NOTE: If using CR 53 or RVS set parame-
ter 10 to 2 or 3 (PAR 10 = 2 or 3).
–. Function.anticondensig,.preheat.the.body.
("+". sign. in. front. of. the. main. digits). and.
anti.inertia.
3.6 TEMPERATURE
DETECTION SENSOR
Table 3. gives. the. values. of. the. electrical.
element. ( ). obtained. on. the. heating. and.
Ω
sanitary. water. sensors. according. to. the.
variations.in.temperature..
When the heating sensor (SM) is interrup-
ted, the boiler will not function for both
services.
With the D.H.W. sensor (SS) interrupted,
ATTENTION: curves are calculated at an ambient
temperature of 20°C. The user can act on the boiler
controls to change the environment set for which the
bend has been calculated by ±5°C.
the boiler functions but will not made the
power modulations for the D.H.W.
TABLE 3
. Temperature.(°C). Resistance.(Ω)
. 20. 12.090
. 30. 8.313
. 40. 5.828
. 50. 4.161
. 60. 3.021
. 70. 2.229
. 80. 1.669
3.7 ELECTRONIC IGNITION
Ignition.and.flame.detection.is.controlled.by.
a.single.electrode.on.the.burner.which.gua-
rantees. reaction. in. the. case. of. accidental.
extinction.or.lack.of.gas.within.one.second.
3.7.1 Functioning cycle
Burner. ignition. occurs. within. max.. 10.
seconds.after.the.opening.of.the.gas.valve..
Ignition.failure.with.consequent.activation.of.
block.can.be.due.to:
–. Lack of gas
The.ignition.electrode.persists.in.dischar-
ging. for. max.. 10. seconds.. If. the. burner.
does.not.ignite,.the.anomaly.is.signalled.
. This.can.happen.the.first.time.the.boiler.
is.switched.on.after.a.long.period.of.inac-
tivity.due.to.the.presence.of.air.in.the.gas.
pipes.
.. It.can.be.caused.by.a.closed.gas.tap.or.by.
a.broken.valve.coil.(the.interruption.does.
not.allow.for.opening)..
–. The electrode does not discharge.
. In.the.boiler,.only.the.opening.of.the.gas.
to. the. burner. can. be. detected.. After. 10.
seconds.the.anomaly.is.signalled.
.. It. can. be. caused. by. an. interruption. in.
the. electrode. wire. or. if. it. is. incorrectly.
anchored.to.the.connection.points..
. Or.the.electrode.may.be.earthed.or.stron-
gly.worn:.it.must.be.replaced..
. Or.the.electronic.card.may.be.defective.
In.the.case.of.a.sudden.lack.of.voltage,.the.
burner. will. immediately. switch. off.. When.
voltage.returns,.the.boiler.will.automatically.
start.up.again.
3.8 FUMES THERMOSTAT
This.is.a.safety.measure.against.the.return.
of. the. fumes. into. the. environment. due. to.
an. inefficient. or. partially. blocked. chimney.
(6.fig..3)..
It. reacts. by. blocking. the. functioning. of. the.
ES
PT
ENG
Fig..15
81