Sime Murelle 25 OF Manual Download Page 9

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ENG

and.deposits,.the.use.of.inhibitors.such.as.
Sentinel X100 or Fernox Protector F1. is.
recommended.after.cleaning.the.system..
It. is. important. to. check. the. concentration.
of.the.inhibitor.after.each.system.modifica-
tion. and. during. maintenance. following. the.
manufacturer’s. instructions. (specific. tests.
are.available.at.your.dealer)..
The.safety.valve.drain.must.be.connected.to.
a.collection.funnel.to.collect.any.discharge.
during.interventions..
If. the. heating. system. is. on. a. higher. floor.
than.the.boiler,.install.the.on/off.taps.sup-
plied. in. kit. optional. on. the. heating. system.
delivery/return.pipes..

WARNING: Failure to clean the heat system
or add an adequate inhibitor invalidates
the device’s warranty.

Gas.connections.must.be.made.in.accordan-
ce.with.current.standards.and.regulations..
When. dimensioning. gas. pipes. from. the.
meter.to.the.module,.both.capacity.volume.
(consumption).in.m

/h.and.gas.density.must.

be.taken.into.account..
The. sections. of. the. piping. making. up. the.
system.must.be.such.as.to.guarantee.a.sup-
ply.of.gas.sufficient.to.cover.the.maximum.
demand,.limiting.pressure.loss.between.the.
gas.meter.and.any.apparatus.being.used.to.
not.greater.than:
–. 1.0.mbar.for.family.II.gases.(natural.gas);
–. 2.0. mbar. for. family. III. gases. (butane. or.

propane).

An.adhesive.data.plate.is.sticked.inside.the.
front.panel;.it.contains.all.the.technical.data.
identifying.the.boiler.and.the.type.of.gas.for.
which.the.boiler.is.arranged.

2.3.1 Filter on the gas pipe

The.gas.valve.is.supplied.ex.factory.with.an.
inlet.filter,.which,.however,.is.not.adequate.
to.entrap.all.the.impurities.in.the.gas.or.in.
gas.main.pipes..
To.prevent.malfunctioning.of.the.valve,.or.in.
certain.cases.even.to.cut.out.the.safety.devi-
ce.with.which.the.valve.is.equipped,.install.

an.adequate.filter.on.the.gas.pipe.

2.5

SYSTEM FILLING (fig. 4)

Filling.of.the.boiler.and.the.system.is.done.
by.the.system.filling.(11)..
The.charge.pressure,.with.the.system.cold,.
must.be.between.1 and 1.5 bar..
During.system.filling.you.are.recommended.
to.keep.the.main.switch.turned.OFF..
Filling. must. be. done. slowly. so. as. to. allow.
any. air. bubbles. to. be. bled. off. through. the.
air.valves..
Should.the.pressure.have.risen.well.above.
the.limit.expected,.discharge.the.over.pres-
sure.by.opening.the.pressure-relief.valve.

2.5.1 Emptying the system (fig. 4)

Use. the. drain. tap. to. empty. the. system. (7)..
Turn.off.the.boiler.before.doing.this.

2.6

FLUES/CHIMNEYS

A.chimney.or.flue.for.the.evacuation.of.the.
combustion. products. into. the. atmosphere.
must.correspond.to.the.requisites.prescri-
bed.by.the.laws.in.force..

2.11

ELECTRICAL WIRING

If.you.must.replace.the.electric.power.cable.
supplied.with.the.boiler,.order.it.exclusively.
from.Sime.

The. power. supply. must. be. single-phase.
230V. -. 50. Hz. through. a. main. switch. pro-
tected.by.a.fuse.with.a.distance.of.at.least.3.
mm.between.contacts.

The boiler must be connected with an effi-
cient grounding system. SIME shall not be
held liable for injury or damage resulting
from failure to ground the boiler.

ATTENTION: Before every intervention on
the boiler, cut off the electricity supply by
means of the main switch of the system,

since even if the boiler is “OFF”, the elec-
trical panel remains connected to the elec-
tricity.

2.11.1 Chronothermostat connection

Connect. the. chronothermostat. as. indica-
ted. in. the. boiler. electrical. diagram. (see
paragraph 2.12). after. having. removed. the.
existing.bridge..
The. chronothermostat. to. be. used. must. be.
of. a. class. conforming. to. the. standard. EN.
607301.(clean.electrical.contact).

2.11.2 Remote control SIME HOME

connection (optional)

The. boiler. is. designed. for. connection. to. a.
remote. control. unit. SIME.HOME,. supplied.
on.request.(code.8092280/81).
The.remote.control.unit.SIME.HOME.allows.
for.complete.remote.control.of.the.boiler..
The. boiler. display. will. show. the. following.
message:

For.installation.and.use.of.the.remote.con-
trol,.follow.the.instructions.in.the.package.
NOTE: Ensure PAR 10 set to 1 (PAR 10 = 1).

2.11.3 External sensor connection

The.boiler.is.designed.for.connection.to.an.
external. temperature. sensor,. supplied. on.
request. (code. 8094101),. which. can. auto-
matically.regulate.the.temperature.value.of.
the. boiler. output. according. to. the. external.
temperature.. For. installation,. follow. the.
instruction.in.the.package..

1...Visualizzazione.temperatura.esterna

....solo.con.sonda.esterna.collegata

2...Visualizzazione.temperatura.sonda

.....riscaldamento.(SM)

3...Visualizzazione.temperatura.sonda

.....sanitario.(SS).solo.per.caldaie.istantanee

4...Visualizzazione.temperatura.sonda

.....ausiliaria.o.sonda.bollitore.(SB)

6..Visualizzazione.temperatura

.....riscaldamento.riferita.al.primo.circuito

7. Visualizzazione.temperatura

.....riscaldamento.riferita.al.secondo.circuito