Glow-worm Ultracom2 sxi - Casing Removing; Combustion Check And Setting The Air;Gas Ratio Valve

0020112600_02-10/12-Glow-worm
- 37 -
MAINTENANCE
- Theburner
- Thefan
 
Inordertoavoidcorrosion,theadditionofacorrosioninhibiter
totheheatingcircuitwaterisrecommended.Theinhibiterwill
stopelectrolyticreactionandbacterialgrowthbetweenthe
differentmetalsusedintheinstallation.
Itwillalsoavoidtheformationofgaswhichcouldbeproduced
followingthechemicalreactions.
Itisespeciallyimportanttotreatthewaterinunderoorheating
systems,aslowtemperaturesfavourbacterialgrowth.Thiscan
leadtotheformationofsludge,whichinturnmayblocksomeor
allofthecircuits.
Inordertoaddthecorrectdosageoftheseproducts,youmust
knowthevolumeofwatercontainedintheinstallation.Itis
recommendedthatyounotedownthevolumeforfutureneeds.
Theinhibitorsmustbecompatiblewiththematerialsemployed
intheinstallation.
 
 
24
V
230
V
A
A
B
1
2

 
 
• Undothetwoscrews(2)ontheundersideofthefrontpanel
andremovethefrontpanel(1).
 
24
V
230
V
1

 
• Positionthecontrolbox(1)intotheserviceposition.
 

 

i
BS 6798: 2009 Specication for installation and
maintenance of gas-red boilers of rated input not
exceeding 70kW net advises that:
- Thepersoncarryingoutacombustionmeasurementmustbe
assessedascompetentintheuseofauegasanalyserand
theinterpretationoftheresults.
- Theuegasanalyserusedshouldbeonemeeting
therequirementsofBS7927orBS-EN50379-3andbe
calibratedinaccordancewiththeanalysermanufacturers’
requirements.
- Competencecanbedemonstratedbysatisfactorycompletion
oftheCPA1ACSassessment,whichcoverstheuseof
electronicportablecombustiongasanalysersinaccordance
withBS7967,parts1to4.
• Ensurethatthegasanalyserissettothecorrectfuelsetting.
• Selectthe“
”,constantcentralheatingfunctionbypressing
the“ ”buttonrepeatedly,refertocommissioning
section.Theboilershouldreautomatically.
i
Safe combustion can only be veried by measuring
CO/CO2 ratio. This must not exceed the value
shown in the table opposite.