Start-Up; Filling The Installation - Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

6 Start-up

6 Start-up
6.1

Filling the installation

Mixing additives with the heating water can result in ma-
terial damage. However, up to now, no incompatibility
with Vaillant appliances has been detected with proper
use of the following products.
• When using additives, follow the additive manufactur-
er's instructions without exception.
Vaillant accepts no liability for the compatibility of any
additive or its effectiveness in the entire heating sys-
tem.
Additives for cleaning purposes
(subsequent flushing required)
- Fernox F3
- Jenaqua 200
- Jenaqua 300
- Jenaqua 400
- Sentinel X 300
- Sentinel X 400
Additives intended to remain permanently in the sys-
tem
- Fernox F1
- Fernox F2
- Jenaqua 100
- Jenaqua 110
- Sentinel X 100
- Sentinel X 200
Additives for frost protection intended to remain per-
manently in the system
- Fernox Antifreeze Alphi 11
- Sentinel X 500
• Inform the operator of the necessary measures in
case you have used any of these additives.
• Inform the operator of the required procedures for
frost protection.
• Observe the applicable national regulations and tech-
nical standards for the treatment of filling and top-up
water.
Total heating Total hardness at 20 l/kW
output for the smallest boiler heating
surface
kW mol/m
50 No requirement or
50 to 200 2
1,5
200 to 600
600 0,02
1) with systems equipped with wall-hung boiler and systems with electric heating elements
2) of the specific system volume (nominal capacity in litres/heating output; in case of multiple boiler systems the lowest individual
heating output should be used)
These data only apply up to 3x the system volume for filling and top-up water. Once this triple system volume is exceeded, the
water will have to be treated exactly the same as in case of exceeding the limit values given in table 6.2 (softening, desalination,
hardness stabilisation and desludging).
Table 6.1 Guidelines for the heating water: Water hardness
22
2)
3
1)
3
Provided the national regulations and technical stand-
ards do not specify any higher requirements, the follow-
ing applies:
• You must treat the heating water
- if the total volume of filling and top-up water ex-
ceeds thrice the nominal volume of the heating sys-
tem over the service life of the system
or
- if the limits given in the following tables are not ad-
hered to.
Heating water
qualities
Electric conductivity
at 25 °C
Appearance
pH-value at 25 °C
Oxygen
1) With aluminium and aluminium alloys, the ph value range is
restricted from 6.5 to 8.5.
Table 6.2 Guidelines for heating water: Salinity
a Caution!
Aluminium corrosion resulting in leakages
caused by unsuitable heating water!
Unlike materials such as steel, cast iron or cop-
per, aluminium is reactive to alkalised heating
water (pH-value > 8,5) which results in signifi-
cant corrosion.
With aluminium, ensure that the pH value of
the heating water ranges between 6.5 up to a
maximum of 8.5.
Total hardness at > 20 l/kW
< 50 l/kW for the smallest boiler
2)
heating surface
mol/m3
2
1,5
0,02
0,02
ecoTEC exclusive installation and maintenance instructions / 0020017768_04
Unit Low-salt saline
S/cm 100 100-1500
Free of sedimentary substances
1)
8,2-10,0 8,2-10,0
mg/L
0,1
Total hardness at > 50 l/kW
for the smallest boiler heating
2)
surface
3
mol/m
0,02
0,02
0,02
0,02
1)
0,02