Establishing operational readiness
32
ecoTEC plus installation and maintenance instructions 0020134823_01
9
1
9.3 Flue gas and air analysis points
Key:
1 Flue gas analysis point
2 Air analysis point
>
Use the air analysis point (
2
) to check for flue gas recir-
culation.
>
Use the flue gas measuring instrument.
>
If you discover CO or CO
2
in the fresh air, search for a
leak in the flue gas system or for flue gas recirculation.
>
Eliminate the damage.
>
Repeat the above-mentioned test to determine if the
fresh air contains CO or CO
2
.
>
If you cannot eliminate the damage, you must not start
up the boiler.
9.6.3
Checking the gas connection pressure
(gas flow pressure)
>
Ensure that the gas connection pressure (gas flow pres-
sure) can be still achieved if all other gas-fired boilers in
the dwelling/house are in operation.
>
Remove the front casing from the boiler (
¬ section 4.6
).
>
Close the gas isolator cock of the boiler.
i
Permissible gas connection pressure (gas flow
pressure) for natural gas operation:
2 kPa (20 mbar) to 2.5 kPa (25 mbar)
1
1
806/5-5
1206/5-5
1006/5-5
9.4
Measuring the gas connection pressure (gas flow pressure)
>
Undo the sealing screw of the measuring nipple (
1
)
(lower screw) at the gas valve using a screwdriver.
>
Connect a digital pressure gauge or U tube manometer
to the measuring nipple (
1
).
>
Open the gas isolator cock of the boiler.
>
Start the boiler by activating check programme P.1, as
described in
¬ section 14.4
.
>
Turn the room thermostat fully up to that the maximum
heat in the heating installation can be shown.
>
Measure the gas connection pressure in comparison with
atmospheric pressure.
Summary of Contents for ECOTEC PLUS VU 80
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