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4.2
GAS VALVE
Each.single.module.is.mass.produced.
with. gas. valve. model. DUNGS. GB-GD.
057.(fig..20).
4.3
CLEANING AND MAINTENANCE
Scheduled.generator.maintenance.must.
be. performed. annually. by. authorised.
technicians.
During maintenance operations the
authorised technician must check that
the syphened drip is full of water (this
check is of importance particularly
when the generator has been out of use
for a long period of time). Filling is done
via the special opening (fig. 21).
4.3.1
Chimney sweep function
To. check. single. module. combustion,.
rotate. the. selector. to. position. ( ). until.
the. yellow. led. (
). starts. to.
blink.(fig..22)..
At.this.time.the.module.will.start.to.heat.
at.maximum.power.and.turn.off.at.80°C,.
restarting.at.70°C.
Before starting the chimney sweep fun-
ction, make sure the radiator valves or
any other area valves are open.
After. checking. combustion,. turn. off. the.
module.by.rotating.the.selector.to.(OFF);.
return. the. selector. to. the. required. fun-
ction.
WARNING: After about 15 minutes the
chimney sweep function automatically
turns off.
5
1
SPIA GIALLA INTERMITTENTE
BLINKING.YELLOW.LIGHT
SPIA ROSSA
6
KEY
1.
Upstream.pressure.fix-
ture
5.. Shutter
6.. OFF-SET
SPIA GIALLA
IT
ES
ENG
Fig..20
Fig..21
S
Fig..22
S
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