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5.10
Refitting the case
Fig. 5.9 Refitting the case
> Hook the top of the front casing over the lip on the
top of the boiler chassis and push the bottom of the
front casing into place.
> Ensure the spring retaining clips (2) engage correctly.
> Tighten case securing screw (1).
5.11
Adjusting the central heating output
(range rating)
The boilers are fully modulating for central heating, and
it is therefore not necessary to range rate the boiler.
However, if desired, it is possible to range rate the boiler,
as follows:
> Press the "i" and "+" buttons simultaneously.
> Keep the "+" button pressed until "d.0" is displayed.
i
The display runs from "d.0" to "d.99" before
restarting at "d.0".
> Press the "i" button. The "=" symbol is displayed.
The part load setting is now displayed in kW.
> Use the "+" and "–" buttons to increase or decrease
the value in steps of 1 kW. The displayed value will
flash while the adjustment procedure is being carried
out. The available ranges of settings are given in
Table 5.3.
> Push the "i" button for about five seconds, or until
the display stops flashing. The value is now saved to
memory. The display will now return to its normal
state (current heating system flow temperature, e.g.
45 °C).
Instructions for installation and servicing ecoTEC 839592_13
2
1
Commissioning Part I
> Press the "i" and "+" buttons simultaneously to can-
cel adjustment mode.
Adjustment mode is also cancelled if no button is
operated for a period of 4 minutes.
Appliance
Heating output in kW
ecoTEC plus 612
ecoTEC plus 615
ecoTEC plus 618
ecoTEC plus 624
ecoTEC plus 630
ecoTEC plus 637
ecoTEC plus 824
ecoTEC plus 831
ecoTEC plus 837
ecoTEC pro 24
ecoTEC pro 28
Table 5.3 Heating system part load adjustment ranges
5.12
Gas changeover
i
To reset the appliance from natural gas to
LPG mode, you need the Vaillant conversion
kit
Art. No. 00 2001 0641.
To reset the appliance from LPG to natural
gas mode, you need the Vaillant conversion
kit
Art. No. 00 2001 0642.
Convert the appliance as described in the con-
version kit.
5
5 – 12
5 – 15
7 – 18
9 – 24
10 – 30
12 – 37
7 – 19
9 – 24
12 – 28
7 – 19
9 – 24
47
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