Bosch Worcester Greenstar CDi Conventional Series Instruction Manual page 42

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6.
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REPLACEMENT OF PARTS
REPLACEMENT OF PARTS
6. Gas valve
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Isolate gas supply at boiler gas cock.
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Pull out air inlet tube (A).
6.1
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Undo top gas connection (B) to gas valve.
6.1
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Undo bottom gas connection (C) to gas
valve.
6.2~
Undo two securing screws (D) on the
underside of casing.
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Pull valve up and forward out of boiler.
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Disconnect electrical connections.
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Replace valve with new seals and check
for gas soundness.
Note: The valve will require setting, follow pro-
cedure "Setting the gas/air ratio" in the gas
conversion section.
7. Siphon
7.1
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Pull condensate pipe out of the adapter.
7.2
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Remove trap from boiler.
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Clean trap and check that the connection
to the heat exchanger is clear.
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Fill the condensate trap with approxi-
mately 1/4 litre of water and refit in reverse
order.
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR 30CDI/40CDI Coc,ectlocal
~ORCESTER
6 720 614 556a (2007/07)
Bosch Group