Vaillant ecoTEC plus 618 Spécifications télécharger pdf (Page 29)

29Instructions for installation and servicing ecoTEC

5.4.1 Checking the filling pressure of the heating

system

bar

iFP

plus pro

bar

Fig. 5.1 Checking the filling pressure of the heating system

Note

The ecoTEC appliances come with a manometer

and a digital pressure indicator.

The manometer allows you to quickly check

whether the filling pressure is in target range or

not even when the appliance is turned off.

If the appliance is in operation, you can display

the exact pressure by pressing the “-” (2).

For the heating system to operate properly, the indicator

on the manometer (1) must be in the dark grey area

when the system is cold. This corresponds to a filling

pressure between 1.0 and 2.0 bar. If the pointer is in the

light grey area, please refill water.

If the heating system extends over several storeys, the

system may require a higher filling pressure.

5.4.2 ecoTEC plus combination boiler filling loop

The ecoTEC plus combination boiler will be delivered

with a filling loop.

Fig. 5.2 Filling device ecoTEC plus combination boiler

• Insert the double check valve (1) of the filling pipe at

the cold water shutoff valve and secure the double

check valve with the spring clip (2).

• To fill, first open the stop valve (3).

• Open the stop valve (4), so that water flows into the

heating system. Fill the heating system as described in

Section 5.4.4.

• Close both stop valves after filling and detach the fill-

ing device by pulling the double check valve from the

cold water stop valve.

Note

Both stop valves must be closed while operat-

ing the heating system and the filling pipe must

be again detached at the double check valve.

Fig. 5.3 Double check valve detached while heating

Commissioning Part I 5

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Vaillant ecoTEC plus 618 Spécifications Page 29

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