Checking Flue Integrity; Flue Gas Analysis; Finishing Commissioning; 6.13.1 Fitting The Combustion Casing - Worcester GR8300iW 30 S Installation And Maintenance Instructions Manual

Commissioning
6.11

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.
1
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%
2
– CO is less than 0.2%
2
▶ If the readings are outside these limits then this indicates that there
is a problem with the flue system or combustion circuit.
6.12

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.
44
2
3
0010015568-001
1
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.
6.13

Finishing commissioning

6.13.1 Fitting the combustion casing

Fig. 69 Fitting the combustion casing
▶ Ensure this cover is engaged onto top bracket [1] before securing
screw [3].
Greenstar 8000 Life – 6720883858 (2019/02)
2
3
0010015569-001
1.
2.
3.
0010023566-001