Bedienungsanleitung Ariston E-System One (Seite 35 von 80) (Englisch)

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COMMISSIONING

Combustion checking procedure

The order of operations for this procedure must always be

respected.

Refer to Technical Bulletin 143 on Gas Safe Register website for

further information on combustion analysis of domestic boilers.

Operation 1 - Supply pressure check

Loosen the screw 1 and insert the pressure gauge connection

pipe into the pipe tap.

Switch the boiler on at maximum power.

To activate combustion test function:

- Press the mode selector to ensure the

icons displayed.

- Press & hold the reset button for 10 seconds. ‘

’ will

appear on the screen. Ensure the boiler is on max power by

pressing the button 2

The supply pressure should correspond to the value established

in relation to the type of gas ,for which the boiler is designed see

Table summarising changes.

Note:

The absolute minimum working pressure measured at the inlet

test nipple on the gas valve is 17.5 mbar.

Operation 2 - Preparing the measuring equipment

Connect the calibrated ue gas analyser to the left-hand

combustion outlet by unscrewing the screw and removing the

blanking cover.

Operation 3 - Adjusting the CO2 at maximum gas ow rate

(domestic hot water)

Draw off the domestic hot water at the maximum water ow rate

(if a combi).

Select the Test function by pressing the

RESET button for 10 seconds.

WARNING! When the cleaning function is activated, the

temperature of the water coming out of the boiler may be

more than 65°C.

On the display appear

and the icon

. The boiler is foced to the maximum

heating power.

Press the 2

button to forced the boiler at

the maximum DHW power. On the display

appear the icon

Wait 1 minute for the boiler to stabilise before

carrying out the combustion analyses.

Read the CO2 value (%) and compare it with the values given in

the table below

N.B.: VALUES WITH THE CASING CLOSED.

If the CO2 value (%) read differs from the values given in the

table, then adjust the gas valve following the instructions below,

otherwise move directly onto operation 4.

Adjusting the gas valve at maximum gas ow

Adjust the gas valve by turning setting screw 4 clockwise in

increments to reduce the CO2 level (a 1 turn adjusts the CO2

level by approximately 0.2%). Wait 1 minute after each change in

setting for the CO2 value to stabilise.

If the value measured corresponds to the value given in the

table, max adjustment is complete, otherwise start the setting

procedure again.

N.B. The Test function is automatically deactivated after 10

minutes or manually by briey pressing the RESET button.

Operation 4 - Checking the CO2 at

minimum gas ow

With the Test function active, press the 2

button to select the icom and

. The boiler is forced to the minimum power.

Wait 1 minute for the boiler to stabilise

before carrying out the combustion analyses.

If the

CO2 value (%) read differs by 0.5 % from the value found,

then adjust the gas valve following the instructions below,

otherwise move directly onto operation 5.

Adjusting the gas valve to minimum gas ow

Remove

cap and adjust screw 2 by turning anti-clockwise in

increments to reduce the CO2 level. Wait 1 minute after each

adjustment for the CO2 value to stabilise.

WARNING! this adjustment is sensitive: a rotation of a 1 turn

corresponds to 0.2% of CO2.

1 32 4

E-COMBI ONE

E-SYSTEM ONE

Gas CO

(%) MAX CO

(%) MIN

G20 8,7% ÷ 9,7% 8,4% ÷ 9,4%

G31 9,5% ÷ 10,5%

ATTENTION! CO

max – CO

min > 0,5%

1 32 4

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