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4
USE AND MAINTENANCE
ATTENTION: Before performing any work on the boiler, make sure that the same and its components have
cooled in order to prevent the risk of burns due to high temperatures.
4.1
GAS VALVE (fig. 16)
The. boiler. is. supplied. as. standard. with.
a. gas. valve,. model. SIT. 822. NOVAMIX.
(fig..16).
4.2
GAS CONVERSION
This operation must be performed by
authorised personnel using original
Sime components.
4.2.1
New fuel configuration
5
5
For.access.to.the.installer's.parameters,.
press. simultaneously.
for.5.seconds.(3.fig..12)..
The.parameters.will.scroll.up.and.down.
with.the.keys
.and.
The.display.pane.will.show.the.values.of.
1
1
the.parameter.PAR.1..
5
If. the. boiler. is. a. methane. (G20). model,.
SET 58.will.be.displayed.
To.change.the.fuel.to.propane.(G31),.it.is.
2
2
necessary.to.set.SET 59,.by.pressing.the.
3
key.
..The.standard.display.will.auto-
4
matically.return.after.10.seconds..
1
The. table. below. shows. the. SET. settings.
to. enter. when. the. type. of. gas. fuel. is.
changed.
2
GAS
4
.
.
.
.
Single.(70.R.ErP).
.
METHANE.
.
(G.20).
.
.
Sequence/cascade..
.
.
.
..
.
.
.
Single.(70.R.ErP).
.
. .PROPANE.
.
(G.31).
.
.
Sequence/cascade..
.
4.2.2 Calibrating the gas valve
pressures
Measure. the. CO
. values. with. a. combu-
2
stion.analyzer.
5
Sequence of operations:
1). Press.and.hold.the.button.down.for.a.
5
few.seconds.
1
2). Press. the. button. for. a. few. seconds
3
.
1
3). Identify.the.CO
.values.at.max..power.
2
2
2
5
5
3
3
.
.
keys.
.
and
1
1
3
3
..
2
2
4
4
4
by.adjusting.the.shutter.(5.fig..16):
MODEL
PAR 1
5
58
4). Press. the. button. for. a. few. seconds.
61
1
5). Identify.the.CO
by. adjusting. the. OFF-SET. regulation.
59
screw.(6.fig..16):
2
63.
6). Press. the. buttons. several. times. to.
check. the.
change.them.if.required.
7). Press. the. button.
quit.the.function.
4.4
3
.
To. simplify. maintenance. operations. on.
the. boiler,. it. is. also. possible. to. com-
pletely. remove. the. shell,. as. shown. in.
figure.19..
4
4
3
2
1
KEY
1.
Upstream.pressure.intake
2.
Intermediate.pressure.intake
3.
Air.signal.inlet.(VENT)
4.
Downstream.pressure.intake
5.
Shutter
6.
OFF-SET
MAX power
CO
(Methane)
CO
(Propane)
2
2
.
9,0.±0,2.
10,2.±0,3
3
.
.values.at.min..power.
2
MIN power
CO
(Methane)
CO
(Propane)
5
5
2
2
4
.
9,0.±0,2.
10,0.±0,3
5
3
.
pressures.
and.
1
1
3
. once. more. to.
1
2
2
DISASSEMBLING
4
THE SHELL
2
(fig. 19)
4
5
6
Turn.the.control.panel.to.move.it.forward.
and.be.able.to.access.the.internal.com-
ponents.of.the.boiler.
4.5
MAINTENANCE
(fig. 20)
To. guarantee. functioning. and. efficiency.
of. the. appliance,. in. respect. of. the. legal.
provisions. in. force,. it. must. be. regularly.
checked;. the. frequency. of. the. checks.
depends.on.the.type.of.appliance.and.the.
installation.and.usage.conditions.
In. any. case,. it. should. be. inspected. at.
least. once. a. year. by. a. qualified. techni-
cian.
During maintenance operations, it is
3
.
important to verify that the drip-plate
with drain trap contains water (this
check is particularly important if the
generator has not been used for exten-
ded periods of time).
If necessary, the drip plate can be filled
using the tap provided (fig. 20).
4
5
4.5.1
Chimney sweep function
(fig. 21)
To. check. boiler. combustion,. press. the.
3
installer's.
key.
for. a. few.
.
chimney.sweep.function.will.switch.on.and.
1
2
B
ES
PT
ENG
4
Fig..16
seconds..
The.
83
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