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BOILER
GAS
MODELS
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METHANE.
25/55.
. OF/.
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LPG.
25/55.
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4.3.2
Adjusting valve pressure (fig. 20)
Set. maximum. and. minimum. pressure. on.
gas.valves.as.follows.(fig..20):
5
–. Connect. the. column. or. a. manometer. to.
the.intake.downstream.of.the.gas.valve.
5
–. Remove.the.cap.(1).from.the.modulator.
3
–. Press.the.key.
.for.a.few.seconds.and.
completely. open. the. hot. sanitary. water.
1
faucet.
3
–. Press.the.key.
.
–. Remember. that. rotating. clockwise. will.
1
2
4
2
4
Codice/Code 8106661
Modello/Model MURELLE 25/55 OF ErP
Matricola/Serial n. 9999999999
PAR 1 = 9 (G20) / 11 (G30-G31)
PAR 2 = 3
84
increase. pressure. while. rotating. anti-
PAR 1
clockwise.will.diminish.it..
–. Adjust.maximum.pressure.using.the.nut.
1
5
(3).with.a.wrench.to.the.maximum.pres-
2
sure.value.indicated.in.Table 4..
3
–. Adjust. the. maximum. pressure. before.
adjusting.the.minimum.
4
–. Press. the.
key. .
5
5
5
water.tap.is.on,.with.the.water.running.
1
6
–. Lock.the.nut.(3).in.place,.turn.the.screw.
7
(2)..to.the.minimum.pressure.indicated.in.
Table 4..
8
–.
Press.the.keys..
9
2
the. hot. sanitary. water. running. all. the.
10
1
time,. and. check. that. the. maximum. and.
5
11
minimum. pressures. correspond. to. the.
12
set.values;.if.necessary.correct.the.regu-
lation.
2
2
–.
Press.the.key..
ction.
1
–. Remove. the. manometer,. remembering.
to.tighten.the.screw.for.closing.the.pres-
sure.test.point.
–. Put.the.plastic.cap.(1).back.on.the.modu-
2
lator. and. seal. with. a. drop. of. coloured.
sealant.if.necessary.
4.4
DISMANTLING THE CASING
(fig. 21)
The. casing. may. be. removed. completely. to.
3
. while. the. sanitary.
3
3
and.
while.keeping.
.
1
4
3
.again.to.quit.the.fun-
4
4
4
facilitate. boiler. maintenance,. as. shown. in.
fig..21..
Turn.the.panel.control.forward.for.access.to.
the.internal.components.of.the.boiler..
ATTENTION
Before removing or refit-
ting the front panel of the
boiler, open the small
upper plastic door.
1
3
2
KEY
1. Plastic.tap
2. Minimum.pressure.adjusting.nut
3. Maximum.pressure.adjusting.nut
Fig..20
Fig..21
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