Supplied By www.heating spares.co Tel. 0161 620 6677
52 Instructions for installation and servicing ecoTEC
2
1
Fig. 9.7 Carrying out measurement of CO
2
levels, preparing for
air-ratio adjustment
• Measure the CO
2
content on the flue gas measuring
nozzles (1).
• If necessary, loosen the screw and fold the suction
pipe extension forwards by 90° (don‘t remove!).
• If necessary, set the corresponding flue gas value
(value with removed appliance front, see table 9.2) by
turning the screw (2).
-> Turn to the left: higher CO
2
content,
-> Turn to the right: lower CO
2
content,
Note
Only for natural gas:
Adjust only in increments of 1/8 turn and wait
approx. 1 minute after each adjustment until
the value stabilises.
Only for liquid gas:
Adjust only in very small increments (approx.
1/16 turn), and wait approx. 1 minute after each
adjustment until the value stabilises.
• Fold back the suction pipe extension upwards.
• Check the CO
2
content again.
• If necessary, repeat setting.
• Press the “+” and “-” keys simultaneously.
The “Full load mode” is turned off. The full load mode
is also turned of if no key is pressed for 15 minutes.
• Fasten the suction pipe extension.
• Attach the front cover again.
Settings Natural gas (H)
Tolerance
Propane
Tolerance
Unit
CO
2
after 5 min. full load
mode with appliance front
closed
9.2 ± 1,0 10.2 ± 0,5
Vol.–%
CO
2
after 5 min. full load
mode with appliance front
removed
9.0 ± 1,0 10.0 ± 0,5
Vol.–%
Set for Wobbe-Index W
0
15 22.5 kWh/m
3
CO value with full load < 250 < 250 ppm
Table 9.2 Factory gas settings
10 Recycling and disposal
Both the Vaillant ecoTEC and the associated transport
packaging consist primarily of recyclable raw materials.
The Vaillant ecoTEC and all accessories and packaging
must not be disposed of in the normal household rub-
bish. Make sure that the old unit and any existing acces-
sories and the transport packaging is handed over to a
proper disposal organisation.
11 Vaillant service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance
Agreement. Please contact Vaillant Service Solutions
(0870 6060 777) for further details.
9 Parts replacement
10 Recycling and disposal
11 Vaillant service
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