Filling The System - Sime SOLIDA EV Serie Bedienungshandbuch

4 INSTALLATION
4.1 BOILER ROOM
Check.that.the.room.has.the.requirements.
and.features.in.accordance.to.the.rules.in.
force.. Furthermore,. the. room. should. be.
aired,. in. order. to. have. a. regular. combu-
stion..Therefore.it.is.necessary.to.practice.
some. openings. in. the. walls. of. the. room,.
which. correspond. to. the. following. requi-
rements:
–. They. should. have. a. free. section. of. at.
least. 6. cm 2 . for. each. 1,163. kW. (1000.
kcal/h).. The. minimum. opening. section.
shouldn't.be.smaller.than.100.cm
section.can.also.be.calculated,.using.the.
following.ratio:.
. . . ..Q
. S. =
. . . 100
. where."S".is.expressed.in.cm
. "Q".is.expressed.in.kcal/h.
–. The. opening. should. be. situated. on. the.
lower.part.of.an.outer.wall,.preferably.on.
the. opposite. of. the. one. for. the. combu-
stion.gas.discharge..
4.1.1 Positioning in the power station
(fig. 4)
The.boiler.must.be.installed.on.a.non-com-
bustion.base..
Once.the.boiler.has.been.installed,.it.must.
be.horizontal.and.stable,.in.order.to.reduce.
any.vibrations.and.noise.
Always.leave.free.space.behind.the.boiler,.
so.as.to.allow.opening.and.maintenance.on.
the.fan.
CAUTION: The minimum distances indi-
cated in the figure are bounding and only
refer to models with power exceeding 35
kW.
4.2 CONNECTION TO THE FLUE
A. flue. should. correspond. to. the. following.
requirements:.
–. It. should. be. of. waterproof. material. and.
resistant.to.temperature.of.smokes.and.
related.condensations..
–. It. should. be. of. a. sufficient. mechanical.
resistance.and.a.weak.thermal.conduc-
tivity.
–. It.should.be.perfectly.hermetic.in.order.
to.avoid.cooling.of.the.flue.
–. It.should.have.the.most.possible.vertical.
process. and. the. terminal. part. should.
have.a.static.aspirator,.which.assures.an.
efficient. and. constant. discharge. of. the.
combustion.product..
–. In.order.to.avoid.the.wind.creating.a.very.
2 ..The. high.pressure.around.the.chimneypot,.so.
that.it.prevails.on.the.ascensional.force.
of. the. combustion. gas,. it. is. necessary.
that. the. discharge. orifice. hangs. over. at.
least. 0,4. meters. of. whatever. structure.
adjacent.the.chimney.itself.(including.the.
2 .. roof.ridge).of.at.least.8.meters..
–. The. flue. shouldn't. have. a. diameter. in-
ferior.to.the.boiler.connection;.for.flues.
with.square.or.rectangular.sections,.the.
internal. section. should. be. higher. than.
10%. compared. to. the. boiler. connection.
one..
–. The.net.section.of.the.flue.can.be.obtai-
ned.from.the.following.ratio:.
. . . .
. S. =. K
. . . .
. S. section.resulting.in.cm
. K. reduction.coefficient:
–. 0,045.for.wood.
–. 0,030.for.carbon
. P. boiler.capacity.in.kcal/h
. H. height.of.the.chimney.in.meters.me-
asured. from. the. flame. axis. at. the.
exhaust.of.the.chimney.in.the.atmo-
sphere...For.the.dimensioning.of.the.
flue.you.should.consider.the.effecti-
ve.height.of.the.chimney.in.meters,.
measured.from.the.flame.axis.at.the.
top,.diminished.with:
–. 0,50. m. for. each. direction. chan-
ging. of. the. connection. tube.
between.boiler.and.flue;
–. 1,00. m. for. each. horizontal. deve-
lopment. meter. of. the. connection.
itself..
600 600
P
√H
2
600
4.3 CONNECTION OF THE PLANT
The. connections. should. be. easily. discon-
nected.by.means.of.pipelines.with.revolving.
joints.. It. is. always. advisable. to. assemble.
suitable.interception.shutters.on.the.piping.
of.the.heating.installation..
CAUTION: It is obligatory to assemble sa-
fety valves on the system not included in
supply.
4.3.1

Filling the system

Before connecting the boiler, it is good
practice to make water circulate inside
the pipes to remove any foreign body that
can compromise the proper operation of
the apparatus.
The. filling. operation. must. be. carried. out.
slowly.to.allow.air.bubbles.to.exit.from.the.
specific. vents. placed. on. the. heating. sy-
stem.
In.closed.circuit.heating.systems,.the.cold.
loading. pressure. of. the. system. and. the.
pre-inflating. pressure. of. the. expansion.
tank. must. correspond,. or. at. least. not. be.
lower. than. the. height. of. the. system. static.
column. (e.g.,. for. a. 5. m. static. column,. the.
pre-load.pressure.of.the.tank.and.the.load.
pressure.of.the.system.must.correspond.to.
the.minimum.value.of.0.5.bars,.at.least).
4.3.2 Features of the feed water
The. heating. circuit. supply. water. must. be.
treated. in. compliance. with. Standard. UNI-
COI.8065.
Remember.that.even.small.deposits.of.few.
millimetres. thick. cause. a. considerable.
over-heating. of. the. boiler. walls,. resulting.
in.serious.consequences.
THE. TREATMENT. OF. THE. WATER. USED.
FOR. THE. HEATING. INSTALLATION.
IS. ABSOLUTELY. NECESSARY. IN. THE.
FOLLOWING.CASES:
–. Very. vast. plants. (with. high. water. con-
1300
Fig..4
37