Vaillant ecoTEC plus 618 Specifications download pdf (Page 33)

33Instructions for installation and servicing ecoTEC

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.

Note

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

5.2.

• Push the “i” button for about five seconds, or until the

display stops flashing. The value is now saved to mem-

ory. The display will now return to its normal state

(current heating system flow temperature, e.g. 45 °C).

• Press the “i” and “+” buttons simultaneously to cancel

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 5 – 12

ecoTEC plus 615 5 – 15

ecoTEC plus 618 7 – 18

ecoTEC plus 624 9 – 24

ecoTEC plus 630 10 – 30

ecoTEC plus 637 12 – 37

ecoTEC plus 824 7 – 19

ecoTEC plus 831 9 – 24

ecoTEC plus 837 12 – 28

ecoTEC pro 28 9 – 24

Table 5.2 Heating system part load adjustment ranges

5.12 Gas changeover

Note

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.

6 Functional checks (commissioning

part II)

6.1 Functional checks

6.1.1 Procedure

After installing and checking the gas supply pressure,

perform a function check before commissioning the

appliance and handing over to the user.

• Commission the appliance according to the relevant

operating manual.

• Check the gas supply pipe, exhaust system, heating

system and the hot water lines (combination boilers

only) for leaks.

• Check that the flue system has been installed properly

according to the flue system assembly manual.

• Check for ignition and an even flame on the burner.

• Perform a function check on the heating system (see

section 6.1.2) and the water heating (combination boil-

ers only, see section 6.1.3).

• Hand over the appliance to the user (see section 6.2).

Fig. 6.1 Function check

Commissioning Part I 5

Functional checks (commissioning part II) 6

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 55 56

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Vaillant ecoTEC plus 618 Specifications Page 33

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