ecoTEC pro - Vaillant
ecoTEC pro - Vaillant
ecoTEC pro - Vaillant
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10 Commissioning<br />
i If<br />
the boiler is in error condition, you cannot<br />
start any test <strong>pro</strong>grams. You can detect an error<br />
condition by the fault symbol shown in the left<br />
bottom corner of the display (¬ fig. 10.1). You<br />
must first reset.<br />
10.3 Preparing the heating water<br />
Pay attention to the specifications concerning heating<br />
water preparation in (¬ section 2.5.7).<br />
10.4 Read off the filling pressure<br />
The boiler is equipped with an analogue pressure gauge<br />
(¬ fig. 3.1) and also has a symbolic bar display for the filling<br />
pressure of the heating system and a digital pressure and<br />
temperature display.<br />
You can see the pressure gauge once you have removed<br />
the front casing of the boiler.<br />
Press the right selection button twice to read off the digital<br />
filling pressure value.<br />
10.5 Filling and purging the heating installation<br />
b<br />
Caution.<br />
Risk of damage caused by contaminated<br />
lines.<br />
Foreign bodies such as welding remnants,<br />
sealing residue or dirt in the water pipes<br />
can cause damage to the boiler.<br />
> Flush the heating installation thoroughly<br />
prior to commissioning.<br />
The system is filled via a customer-installed filling connection,<br />
which must be attached in a suitable position in the<br />
heating circuit. This connection must be removed again<br />
after the filling <strong>pro</strong>cess is complete. If the local Water<br />
Authority regulations do not allow temporary connection a<br />
sealed system filler pump with break tank must be used.<br />
The heating system will not be filled automatically from the<br />
domestic hot water side. (Alternative methods of filling<br />
sealed systems are given in BS 5449)<br />
To ensure the correct operation of the heating installation,<br />
the indicator on the pressure gauge must point to the<br />
upper half of the grey area or in the middle of the bar<br />
graph display (marked by the dashed limit value) when the<br />
heating installation is cold. This corresponds to a filling<br />
pressure of between 0.1 MPa and 0.2 MPa (1.0 bar and<br />
2.0 bar).<br />
You can display the exact filling pressure (¬ section 10.4).<br />
If the heating installation extends over several storeys,<br />
higher filling pressures may be required to avoid air entering<br />
the heating installation.<br />
> Remove the front casing from the boiler (¬ section 4.7).<br />
10.2 Automatic air vent<br />
> Release the cap of the automatic air vent (1) by up to<br />
two rotations.<br />
> Open all thermostatic radiator valves.<br />
i The<br />
<strong>ecoTEC</strong> <strong>pro</strong> purges the heating circuit independently<br />
during continuous operation via the<br />
automatic air vent.<br />
> Select test <strong>pro</strong>gram P.06 (¬ section 10.2).<br />
The diverter valve moves to the mid-position, the pumps do<br />
not run and the boiler does not switch to heating mode.<br />
10.5.1 Filling the heating installation<br />
i Ensure<br />
that the filling and drainage cock on the<br />
heating installation is connected to a cold water<br />
valve as per standard.<br />
> In order to fill the heating installation, first open the cold<br />
water valve.<br />
> Open all thermostatic radiator valves.<br />
> Check that both service valves on the boiler are open.<br />
> Slowly open the stop valve on the filling line so that the<br />
water flows into the heating system.<br />
32 Installation and maintenance instructions <strong>ecoTEC</strong> <strong>pro</strong> 0020129672_03<br />
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