Baxi EcoBlue Plus Combi Quick Start Manual download pdf (Page 46)

46 EcoBlue Plus Combi 7212136 - 02 (08/14)

7 Commissioning

Set Boiler to Maximum Rate

(see 7.4.1)

Allow the combustion to

stabilise. Do not insert probe

to avoid ‘flooding’ the analyser.

Perform Flue Integrity

Combustion Check

Insert the analyser probe into

the air inlet test point, allowing

the reading to stabilise.

Is O

2  20.6% and

CO

2 < 0.2% ?

Verify Flue Integrity

Indication that products of

combustion & inlet air are

mixing - further

investigation is required.

Check all flue components

are correctly assembled,

fixed & supported. Check

the flue & terminal are

unobstructed.

Is O

2  20.6% and

CO

2 < 0.2% ?

TURN APPLIANCE OFF !

Call 0844 871 1555 for

advice.

The appliance MUST NOT

be commissioned until all

problems are identified

and resolved.

Check CO & Combustion

Ratio at Maximum Rate

Whilst the boiler is still

operating at maximum insert

the analyser probe into the

flue gas test point, allowing

the reading to stabilise.

Is CO < 350ppm

and CO/CO

2 ratio

< 0.004 ?

Verify Integrity of Seals

Check all burner seals,

internal flue seals, door &

case seals. Replace any

seals that appear unsound.

Is CO < 350ppm

and CO/CO

2 ratio

< 0.004 ?

TURN APPLIANCE OFF !

Call 0844 871 1555 for advice.

The appliance MUST NOT be

commissioned until all

problems are identified and

resolved.

If commissioning cannot be

fully completed the appliance

must be disconnected from the

gas supply in accordance with

the GSIUR.

Note: Check & record the CO

& combustion ratio at both

maximum & minimum rates

before calling 0844 871 1555.

Set Boiler to Minimum Rate

(see 7.4.1)

Allow the combustion to

stabilise. Do not insert probe

to avoid ‘flooding’ the analyser.

Yes

No

No

Yes

No

Yes

Check CO & Combustion

Ratio at Minimum Rate

Whilst the boiler is

operating at minimum insert

the analyser probe into the

flue gas test point, allowing

the reading to stabilise.

Yes

No

Is CO < 350ppm

and CO/CO

2 ratio

< 0.004 ?

No

Yes

BOILER OPERATING

SATISFACTORILY. NO

FURTHER ACTION

REQUIRED

Ensure test points are capped,

the boiler case front panel is

correctly fitted & secured and

all other commissioning

procedures completed.

Complete the ‘Benchmark’

Checklist, recording the CO &

combustion ratio readings as

required.

7.4.1 Checking Combustion (cont)

9. Follow the flow chart opposite.

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