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When reconnecting, the polarity of the wiring to
thermistors is not important.
19.5.9
Gas valve
• Remove the burner door (11) refering to chapter "Dismantling
the burner door".
• Remove the two gas valve retaining screws (30).
• Remove the gas valve (31) and the gasket (32).
• Fit the new gas valve and the new gasket by repeating the
operations in reverse.
• After assembly test for gas tightness and purge in accordance
with the current issue of BS6891or in IE, the current edition of
I.S.813 “Domestic Gas Installations”.
• Check the combustion CO
2
and set value if required (see
sections 18.2.2 and 18.2.3).
19.5.10 Fan
• Remove the burner door (11) refering to chapter "Dismantling
the burner door".
• Remove the gas valve (31) (see previous paragraph).
• Loosen the 3 screws (38) located on the burner door (11).
• Remove the fan (33) and the gasket (35).
• Fit the new gasket (35).
• Screw the new fan to the burner door (11).
• After assembly test for gas tightness and purge in accordance
with the current issue of BS6891or in IE, the current edition of
I.S.813 “Domestic Gas Installations”.
19.6 Condensate trap
a
Warning: condensate is mildly acidic. Wear
protective gloves.
6
4
1
2
5
3
Key
1 Condensate outlet
2 Condensate reservoir
3 Condensate trap
4 Condensate retaining screw
• Place a container under the condensate trap (3).
• Remove the condensate from the reservoir (2).
• Disconnect the condensate outlet (1).
• Disconnect condensate drain and rainwater collector from the
top of the condensate trap.
The condense trap will contain water, lift taking care not to spill
the water.
• Remove the condensate trap (2) using the
retaining screws
(4).
• IMPORTANT: Partially fi ll the condensate trap with water
before replacing.
