mundoclima Aerotherm BCC 200 CONNECT Manuel D'installation, D'utilisation Et D'entretien page 114

Water feature
 Fill the storage tank (DHW) only during the unit start-up.
 If the house is not immediately lived,or the unit is turned off
for long periods, empty the storage tank to avoid the
stagnation of the water, or with temperatures close to 0°C the
risk of freeze.
See the Maintenance section for drain.
Water features
confirming to local regulations

Langelier (I ) index between 0 and +0.4

L
within the limits indicated by table

The water quality must be checked by qualified personnel.
Hardness
If necessary, fit a water softener to reduce water hardness.
Cleanliness
Before connecting the water to the unit, clean the system
thoroughly with specific products effective to remove residues or
impurities that may affect functioning.
Existing systems must be free from sludge and contaminants and
protected against buildups.
New systems
In case of new installations, it is essential to wash the entire
installation (with the circulator uninstalled) before commissioning
the central installation.
This removes residues of the installation process (welding, waste,
joint products...).
The system must then be filled with clean high-quality tap water.
Existing systems
If a new unit is installed on an existing system, the system must
be rinsed to avoid the presence of particles, sludge and waste.
The system must be drained before installing the new unit.
Dirt can be removed only with a suitable water flow.
Each section must then be washed separately.
Particular attention must also be paid to "blind spots" where a
lot of dirt can accumulate due to the reduced water flow.
The system must then be filled with clean high-quality tap water.
If, after rinsing, the quality of the water is still unsuitable, a few
measures must be taken to avoid problems.
An option to remove pollutants is to install a filter.
6 WATER CONNECTIONS
N ote
The warranty does not cover
damages caused by limestone
formations, deposits and impurities
from the water supply and/or from
failure to clean the systems.
Water component for corrosion limit on
Copper
PH 7,5 ÷ 9,0
SO -- < 100
4
HCO - / SO -- > 1
3 4
Total Hardness 8 ÷ 15
Cl- < 50
PO 3- < 2,0
4
NH < 0,5
3
Free Chlorine < 0,5
Fe + < 0,5
3
Mn ++ < 0,05
CO < 50
2
H S < 50
2
Temperature < 65
Oxygen content < 0,1
Sand
0.1 to 0.7mm max
Dose < 7.5 mg/L 50%
Ferrite hydroxide
Fe3O4 (black)
with diameter < 10
Dose < 7.5mg/L
Iron oxide Fe2O3
(red)
Diameter < 1 µm
°f
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppb
°C
ppm
10 mg/L
diameter
of mass
µm