Use And Maintenance; Gas Conversion - Sime Rx 19 Tp Mode D'emploi

4 USE AND MAINTENANCE
4.1 ACTIVATION AND
SIT 820 NOVA mV
GAS VALVE
ADJUSTMENT (fig. 7)
-.Check.that.both.the.system.and.boi-
ler.are.full.of.water.and.fully.vented..
Remove.the.inlet.pressure.gauge.on.
the.gas.valve.(7).and.engage.a.water.
column. gauge.. Open. the. gas. cock..
Check.that.the.upstream.gas.pres-
sure. is. equal. to. or. slightly. higher.
than.20.mbar..(Attention:.if.pressure.
exceeds.37.mbar,.insert.the.pressu-
re.reducers.upstream.the.boiler.or.
boiler.room).
-.Rotate.the.control.knob.(1).to.the.pi-
lot.position..Fully.press.the.control.
knob..The.gas.will.start.leaking.from.
the. pilot.. Switch. the. pilot. on. using.
the. piezoelectric. activator.. When.
the.pilot.is.on,.wait.about.20.minutes.
before. releasing. the. control. knob..
The.pilot.will.remain.on..Otherwise,.
repeat.the.operation.
-.Rotate.the.control.knob.to.the.bur-
ner.position.
-. Remove. the. downstream. pressure.
connection. screw. on. the. valve. (8)..
Move.the.water.column.gauge.to.the.
downstream. pressure. connection..
Tighten. the. inlet. pressure. connec-
tion.screw.
-.Set.the.required.temperature.on.the.
boiler.thermostat..When.the.burner.
is.fully.on,.calibrate.the.burner.gas.
pressure. (using. adjustment. screw.
2). referring. to. the. values. indicated.
in.the.technical.data.table.(point.1.3).
according.to.the.type.of.gas.used.
-.Seal.the.performed.adjustment.
-. If. the. burner. does. not. switch. on,.
check. that. sufficient. voltage. rea-
ches.the.gas.valve.
4.3 ADJUSTING THE GAS
PRESSURE TO BURNERS
Pressure. calibration. and. gas. input.
are.carried.out.by.the.manufacturer..
During.installation.of.the.equipment,.
feed.pressure.might.be.different.from.
standard.values..
It. is. therefore. necessary. to. check.
pressure.and.gas.input.when.igniting.
the.boiler.for.the.first.time..
This. test. should. be. performed. with.
the.boiler.in.full.operation.(obviously.
no. other. gas. appliances. should. be.
working.at.the.same.time)..Read.the.
gas. meter. twice. every. 6. minutes..
Multiply. the. consumption. by. ten. to.
calculate.the.consumption.per.hour..
If. this. value. does. not. correspond. to.
42
KEY
. 1. Control.knob
. 2.. Burner.pressure.adjustment.screw
. 3.. Pilot.flow.rate.adjustment.screw
. 4.. Thermocouple.connection
. 7.. Power.pressure.connection
. 8.. Burner.pressure.connection
. 9.. Burner.solenoid.valve
the.one.in.point.1.3,.turn.the.screw.of.
the. pressure. regulator. on. the. valve.
until. the. exact. value. is. obtained..
Screw. slowly. and. gradually.. Read.
the.gas.meter.at.least.thirty.seconds.
after.regulating.the.pressure.
4.4 GAS CONVERSION
(fig. 8)
A. kit. is. supplied. complete. with. the.
necessary.change-over.materials.for.
operation. with. butane. gas. (G30). or.
propane. gas. (G31).. Operate. in. the.
following. manner. for. changing. over.
from.one.gas.to.another:
–. Replace.the.main.nozzles.and.pilot.
nozzle.supplied.in.a.kit.
–. Fully. tighten. the. gas. valve.
adjustment.screw.(2.fig..7).
–. Set. valve. input. pressure. at. 30/37.
mbar. according. to. the. type. of. gas.
by. acting. on. the. outer. pressure.
reducer.
–. When. the. working. pressures. have.
been. adjusted,. reseal. the. regula-
tors.
–. After. have. ultimated. the. conver-
sion.of.the.boiler,.please.stick.onto.
the.casing.panel.the.plate.showing.
the. relevant. feeding. gas. which. is.
included.into.the.kit.
NOTE: After assembling all the gas
connections, a test for gas tightness
Fig..7