Start-Up; Carrying Out The Initial Start-Up; Checking The Type Of Gas; Checking The Factory Setting - Vaillant ecoFIT sustain 615 Installation And Maintenance Instructions Manual

7

Start-up

7.1

Carrying out the initial start-up

Initial start-up must be carried out by a customer service
technician or an authorised competent person using the first-
commissioning-checklist. The first-commissioning-checklist
in the appendix (→ Page 40) of the installation instructions
must be filled out and stored carefully along with the unit's
documentation.
▶
Carry out the initial start-up using the first-commission-
ing-checklist in the appendix.
▶
Fill out and sign the first-commissioning-checklist.
7.2

Checking the type of gas

Make sure that the product is set up correctly by checking
the type of gas. This ensures optimum combustion quality.
▶
Check the type of gas as part of routine product mainten-
ance work when replacing components or carrying out
work on the gas route.
7.3

Checking the factory setting

The product's combustion has been factory tested and is
preset for operation with the gas group indicated on the iden-
tification plate.
The product is only authorised to be operated with natural
gas.
▶
Check the information about the type of gas indicated on
the identification plate and compare this with the type of
gas available at the installation location.
Conditions: The product design is not compatible with the local gas
group
▶
Do not start up the product.
Conditions: The product design is compatible with the local gas group
▶
Proceed as described below.
7.4 Checking and treating the heating
water/filling and supplementary water
Caution.
Risk of material damage due to poor-qual-
ity heating water
▶
Ensure that the heating water is of suffi-
cient quality.
▶
Before filling or topping up the installation, check the
quality of the heating water.
Checking the quality of the heating water
▶
Remove a little water from the heating circuit.
▶
Check the appearance of the heating water.
▶
If you ascertain that it contains sedimentary materials,
you must desludge the installation.
▶
Use a magnetic rod to check whether it contains mag-
netite (iron oxide).
▶
If you ascertain that it contains magnetite, clean the in-
stallation and apply suitable corrosion-protection meas-
ures, or fit a magnetic filter.
▶
Check the pH value of the removed water at 25 °C.
0020277252_00 ecoFIT sustain Installation and maintenance instructions
▶
If the value is below 6.5 or above 8.5, clean the system
and treat the heating water.
▶
Ensure that oxygen cannot get into the heating water.
Checking the filling and supplementary water
▶
Before filling the installation, measure the hardness of the
filling and supplementary water.
Treating the filling and supplementary water
▶
Observe all applicable national regulations and technical
standards when treating the filling and supplementary
water.
Provided the national regulations and technical standards
do not stipulate more stringent requirements, the following
applies:
You must treat the heating water in the following cases:
–
If the entire filling and supplementary water quantity dur-
ing the operating life of the system exceeds three times
the nominal volume of the heating installation, or
–
If the guideline values listed in the following table are not
met, or
–
if the pH value of the heating water is less than 6.5 or
more than 8.5.
Total
Water hardness at specific system volume
heating
output ≤ 20 l/kW
ppm mol/
kW
CaCO₃ m³
< 50 < 300 < 3
> 50 200 2
to ≤ 200
> 200 150 1.5
to ≤ 600
> 600 2 0.02
1) Nominal capacity in litres/heating output; in the case of multi-
boiler systems, the smallest single heating output is to be used.
Caution.
The use of unsuitable heating water may
cause aluminium corrosion and a result-
ing lack of leak-tightness.
In contrast to steel, grey cast iron or copper,
for example, aluminium reacts with alkaline
heating water (pH value > 8.5) to produce
substantial corrosion.
▶
When using aluminium, make sure that
the pH value of the heating water is
between 6.5 and a maximum of 8.5.
Caution.
Risk of material damage if the heating
water is treated with unsuitable additives.
Unsuitable additives may cause changes in
the components, noises in heating mode and
possibly subsequent damage.
Start-up 7
1)
> 20 l/kW
> 50 l/kW
≤ 50 l/kW
ppm mol/ ppm mol/
CaCO₃ m³ CaCO₃ m³
200 2 2 0.02
150 1.5 2 0.02
2 0.02 2 0.02
2 0.02 2 0.02
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