Checking Flue Integrity; Flue Gas Analysis; Finishing Commissioning; 6.12.1 Fitting The Appliance Casing - Worcester Greenstar 8000 Life Series Installation And Maintenance Instructions Manual

Commissioning
6.10

Checking flue integrity

Flue integrity check
▶ The combustion casing must be fitted whilst this test is carried out.
▶ Refit the test point plugs after the test has been completed.
The integrity of the flue system and performance of the appliance can be
checked via the flue turret/adaptor sample points.
Air inlet sample point location on flue turret/adaptor.
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Fig. 67 Flue integrity check test point
[1] Air inlet sample point
[2] Flue turret air inlet blank plug (with retaining ring)
[3] Flue adaptor air inlet blank plug
▶ With the appliance combustion casing on and the appliance running
at maximum output in chimney sweep mode, remove the blanking
plug [2 or 3] for the air inlet sample point [1].
▶ Insert the analyser probe into the air inlet sample point [1].
▶ Allow the readings to stabilise and check that:
– O is equal to, or greater than 20.6%
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– CO is less than 0.2%
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▶ If the readings are outside these limits then this indicates that there
is a problem with the flue system or combustion circuit.
6.11

Flue gas analysis

NOTICE:
Combustion testing
▶ Combustion testing must be carried out by a competent qualified
person. Testing must not be attempted unless the person carrying
out the combustion check is equipped with a calibrated Flue Gas
Analyser conforming to BS 7967 and is competent in its use.
Flue gas analysis
▶ Ensure that the gas inlet pressure has been checked and is
satisfactory.
▶ Refit the test point plugs after the test has been completed.
The flue gas analysis performance of the appliance can be checked via
the flue turret/adaptor sample points.
Flue gas sample point location on flue turret/adaptor.
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Fig. 68 Combustion test
[1] Flue gas sample point
[2] Flue turret flue gas blank plug
[3] Flue adaptor flue gas blank plug
▶ With the appliance combustion casing on and the appliance running
at maximum output in chimney sweep mode, remove the blanking
plug [2 or 3] for the flue gas sample point [1].
▶ Insert the analyser probe into the flue gas sample point [1].
▶ Check the CO and combustion readings.
6.12

Finishing commissioning

6.12.1 Fitting the appliance casing

The front casing is to be secured at the bottom with one screw (as
supplied) against unauthorised removal (electrical safety).
▶ Always secure the casing with this screw.
▶ Remove the protective films from the boiler display before handing
over to the user.
Greenstar 8000 Life – 6720883865 (2019/02)
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0010015569-001