Sime MURELLE HE 35 R ErP Manual De Instrucciones página 100

3.4 EXTERNAL
SENSOR
If. there. is. an. external. sensor,. the. heating.
settings.SET.can.be.taken.from.the.climatic.
curves.according.to.the.external.tempera-
ture. and,. in. any. case,. limited. to. with. the.
range. values. described. in. point. 3.3. (para-
meters.PAR.22.for.zone.1,.PAR.25.for.zone.
2.and.PAR.28.for.zone.3)..
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..13.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.inactivi-
ty.
–. 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,.circuit.2.and.circuit.3.
–. Management. of. 3. independent. heating.
circuit.systems.
–. Automatic. regulation. of. the. ignition.
power.and.maximum.heating...
. Adjustments. are. managed. automatical-
ly. by. the. electronic. card. to. guarantee.
maximum.flexibility.in.use.of.the.system.
–. Interface. with. the. following. electronic.
systems:. remote. control. SIME.HOME,.
thermal. regulator. RVS,. connected. to.
a. management. card. of. a. mixed. zone.
ZONA.MIX,. card. solar. SOLARE. and.
MODBUS.
NOTE: If using RVS 43 set parameter 10
to 3 (PAR 10 = 3).
3.6 TEMPERATURE
DETECTION
SENSOR
Table 4 shows.the.resistance.values.of.the.
heating,. DHW. and. exhaust. fumes. thermi-
stors..
If the C.H. flow sensor (SM), C.H. return
sensor (SR) and the exhaust fumes sensor
(SF) is faulty or open circuit, the boiler
will not function on either heating or DHW.
3.7 ELECTRONIC
IGNITION
100
ATTENTION: curves are calculated at an ambient temperatu-
re 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.
Ignition. and. flame. detection. is. controlled.
by. a. single. electrode. on. the. burner. which.
TABLE 4 (SM - SR - SF sensors)
. 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
guarantees. reaction. in. the. case. of. acci-
dental.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.
discharging. 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.
inactivity.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.signal-
led.. 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.strongly.
worn:.it.must.be.replaced..
. Or.the.electronic.card.may.be.defective.
–. No flame detected
. After.start-up.the.electrode.continues.to.
discharge.even.when.the.burner.is.on..
. After. 10. seconds,. the. discharge. stops,.
the.burner.is.switched.off.and.a.fault.is.
generated.
. This. fault. is. sometimes. caused. by. the.
shorting.of.the.electrode.cable.or.by.its.
improper.fixing.to.the.connection.points..
. The.electrode.is.connected.to.the.earth.
or.badly.worn.and.must.be.replaced..The.
electronic.board.is.faulty.
In.the.case.of.a.sudden.lack.of.voltage,.the.
burner.will.immediately.switch.off..
When.voltage.returns,.the.boiler.will.auto-
Fig..13