Sime Murelle 25/55 OF ErP, Installer'S Instructions

Page: 84 / 96

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