Sime SOLO 20 OF Instrucciones Para El Instalador página 74

Table B.
Use. original. SIME. accessories. only.
and. make. sure. that. the. connection.
is. performed. correctly,. as. specified.
in.the.instructions.supplied.with.the.
accessories.
2.4 FUEL ADDUCTION
The.fuel.can.be.fed.into.the.thermal.
group. sideways,. the. ducts. must. be.
passed.through.the.aperture.on.the.
right. or. left. hand. side. of. the. shell.
for. connection. to. the. pump. (fig.. 7.
-.7/a).
Important
–. Make. sure,. before. turning. on. the.
boiler,.that.the.return.tube.is.free..
An. excessive. counter-pressure.
would..break.the.pump.seal.
–. Make. sure. that. the. tubes. are.
sealed.
–. The. maximum. depression. of. 0.4.
bar.(300.mmHg).(see.Table.1).must.
not.be.exceeded..Gas.is.freed.from.
the. fuel. above. that. value. and. can.
cause.cavitation.of.the.pump.
–. It's. advisable. to. bring. the. return.
tube.in.the.depression.systems.up.
to. the. same. height. of. the. intake.
tube..In..this.case.the.foot.valve.is.
unnecessary..
. If. instead. the. return. tube. arrives.
above.the.fuel.level,.the.foot.valve.
is.indispensable.
Starting the pump
Turn.on.the.burner.to.start.the.pump.
and.check.the.flame.ignition..
If. a. "lock. out". occurs. before. fuel.
arrival,. wait. for. at. least. 20. seconds.
then. press. the. burner. release. but-
ton."RESET".and.wait.for.the.whole.
start-up. operation. to. repeat. until.
the.flame.lights.up.
2.5 BURNER ADjUSTMENTS
Each. unit. is. shipped. with. a. burner.
unit.equipped.with.a.nozzle.and.cali-
brated. at. the. factory;. it. is. recom-
mended,. however,. that. the. settings.
listed. under. point. 1.3. be. checked,.
with.reference.to.atmospheric.pres-
sure.at.sea.level.
If.it.is.necessary.to.adjust.the.burner.
differently.from.the.factory.settings,.
this. should. be. done. by. authorised.
personnel.following.the.instructions.
72
C
ONNECTIONS
. 1. Vacuometer.attachment
. 2. Pressure.regulator
. 3. Manometer.attachment
. 4. By-pass.screw
. 5. Back-flow.flexible.pipe.
. . (included.in.supply)
. 6. Suction.flexible.pipe.
. . (included.in.supply)
. 7. Auxiliary.pressure.intake
. 8. Valve
. 9. Racor.3/8".(included.in.supply)
. 1 0. Fuel.feed.line.filter.
. . (included.in.supply)
9 10 9
ATTENTION:
- loosen the pump joints (5-6) before pointing the flexible pipes for bring-
ing them out from the prefixed opening on the right/left hand side of the
shell. Afterwards tighten the joints to the pump.
- The pump is prearranged for the double-tube function. Remove the by-
pass screw (4) for single tube function.
provided.below..
Remove.the.shell.door.to.access.the.
burner.unit's.controls.
2.5.1 Air lock adjustment
To. adjust. the. air. lock,. loosen. the.
screw.(1.fig..8).and.slide.the.gradu-
ated. scale. (2. fig.. 8). indicating. the.
position.air.lock.position..
The. values. for. adjustment. of. each.
TABLE 1
. H. . L .(meters)
. m eters. øi.tube. . øi.tube
. . 8.mm. . 10.mm
0. 35. .
. 0,5. 30. .
. 1. 25. .
. 1,5. 20. .
. 2. 15. .
. 3. 8. .
. 3,5. 6. .
H.=. Difference.in.level
L. =. Maximum.length.
. . of.the.intake.tube
8
7
6
unit.are.given.in.point.1.3.
2.5.2 Pump pressure adjustment
To.adjust.gas-oil.pressure,.turn.the.
screw.(3.fig..8/a).and.check.pressure.
with. a. pressure. gauche. connected.
to.the.intake.(2.fig..8/a),.making.sure.
pressure. corresponds. to. the. value.
given.under.point.1.3.
100
100
100
90
70
30
20
Fig..7
1
2
3
4
5
Fig..7/a