Glow-worm Ultracom2 sxi - General; Boiler Access; Viewing Window

0020112600_02-10/12-Glow-worm
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MAINTENANCE
 
b
The replacement of parts described in sections
"Combustion block" will require the removal
of the burner module assembly and the
replacement of seal and self locking nuts.
Replacementpartsthathaveassociatedcomponentsthatneed
replacingonremoval,i.e.‘O’ring,seals,gasket,etc.,willneed
tobesuppliedandshouldbetted.
• Beforereplacinganypartsoftheboiler,isolatefromthe
mainselectricsupplyandturnoffthegasatthegasservice
isolationvalveontheboiler.
Unlessstatedotherwisepartsarereplacedinthereverseorder
toremoval.
• Afterreplacinganyparts,alwaystestforgassoundnessand
ifnecessarycarryoutfunctionaltestofthecontrols.
 
Forreplacementofparts,thefrontcasingpaneloftheboilerwill
needtoberemoved.
• Toremoveundothetwoscrewsontheundersideofthefront
casingandliftoff.
 
24
V
230
V
1
2
3
4
5

 
 
 
 
 
• Removethecirclip(5).
• Removethesteelwasher(4).
• Removebrewasher(1).
• Removetheglass(3).
 
B
C
D
E
A
1
2
4
3
2
1

 
 
 
 
 
• Draintheboilerheatingcircuitasdescribedinthe
appropriatechapter"Draining".
• Removethetwoscrews(4).
• Undotheconnector(1)atthebaseofthevessel.
• Removeuppersupportbracket(3).
• Removetheexpansionvessel(2).
• Fitanewgasketbetweentheexpansionvesseland
connector.
• Rell,ventandpressurisetheboiler.