0020092786_01-04/10-Glow-worm
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ANYASSISTANCE?
10 Appliance safety devices
10.1 Boiler Shutdown
Theboilersoftwareisdesignedto
recognisethepotentialforanoverheat
lockoutandwillshutdownbeforethis
happens.
• Torestarttheboiler,pressthereset
button,seechapter"Applianceuse►
Overview".
Iftheboilerfailstoresumenormal
operationandallexternalcontrolsare
callingforheat,thencallyourInstallation/
ServicingcompanyorGlow-wormservice.
10.2 Protecting against frost
Appliance Protection
Incaseoftheriskoffrost:
• Makesurethattheelectricalandgas
supplytotheapplianceisturnedon.
• Foranabsenceofseveraldays,select
the"frostprotection"mode.Inthis
mode,onlythewaterpressureinthe
heatingcircuitisvisible.or
• Setthe"holiday"modeintheexternal
control.
Thefrost-protectionsystemstartsthe
appliance'spumpwhenthetemperaturein
theheatingcircuitgoesbelow12°C.The
pumpstopswhenthetemperatureofthe
waterintheheatingcircuitreaches15°C.
Ifthetemperatureintheheatingcircuit
goesbelow7°C,theburnerislituntilthe
temperaturereaches35°C.
Iftheboilerisin"DomesticHotWater"
modeonly,thefrost-protectionsystemis
alsoactive.
System Protection
Theboileralonecannotensurethatthe
installationisprotectedagainstfrost.
NOTE:Anyotherexposedareasofthe
systemshouldbeprotectedbyaseparate
frostthermostat.
Incaseofprolongedabsence,where
powertothedwellingandtheboileris
switchedoff,contactyourInstallation/
ServicingcompanyorGlow-wormService
tohavetheinstallationdrainedortohave
theheatingcircuitprotectedbyaddingan
anti-freezespeciallydesignedforheating
systems.
b
CAUTION: Your domestic
water circuit (hot and cold) is
not protected by the boiler.
10.3 Condensate Drain Blockage
Asasafetyfeaturetheboilerwillstop
workingifthecondensatedrainbecomes
blocked.Duringfreezingconditionsthis
maybeduetotheformingoficeinthe
condensedrainexternaltothehouse.
• Releaseaniceblockagebytheuseof
warmclothsonthepipe.
Theboilershouldthenrestart.
• ContactyourInstallation/Servicing
companyorGlow-wormserviceifthe
faultpersists.
10.4 Safety Discharge Valve
Thesafetydischargevalveanddischarge
pipeisttedtotheboiler.
• Ifthereisanydischargefromthepipe,
switchofftheboilerelectricalsupply,
thencallyourInstallation/Servicing
companyorGlow-wormservice.