Water quality requirements on the circuit
Water quality must meet the standards of European Directive 98/83 EC and
the criteria set out in UNE 112.076. Water quality should be analysed before
use; to evaluate criteria such as concentration, pH value, conductivity,
chloride ion concentration (Cl-), sulfide ion concentration (S2-), etc. Some of
the parameters on the chemical ingredients are indicated in the following
table:
Parameter
Value
Parameter
Value
Acrylamide
0.10
μgil
Fluoride
1.5
mgll
Antimony
5.0gll
Lead
10gll
Arsenic
10gll
Mercury
1.0gll
Benzene
1.0gll
Nickel
20gll
Benzopirene
0.010gll
Nitrate
50
mgll
Boron
1.0
mgll
Nitrite
0.50
mgll
Bromate
10gll
Pesticides
0.10gll
Cadmium
5.0gll
Pesticides - total
0.50gll
Chrome
50gll
Polycyclic
aromatic hydrocarbons
0.10gll
Copper
2.0
mgll
Selenium
10gll
Cyanide
50gll
Tetrachloroethylene and
Trichloroethylene
10gll
1.2-dichloroethane
3.0gll
Trihalomethane - Total
100gll
Epiclorohydrin
0.10
μgil
Vinyl chloride
0.50gll
•
PH value: between 6.5 and
8.5
•
Water hardness:
<50ppm.
Before connecting the outdoor unit:
In any installation, both new and existing, a thorough cleaning of the
pipes must be carried out using a suitable chemical cleaning product,and
then wash the pipes to clean said chemical agent. To avoid damage to the
pipes, you must add anionic, cationic corrosion inhibitors, a mixture of
both or film products that block the existing microlays, avoiding corrosion
reactions and oxygen detachment. When using inhibitors or other
cleaning chemicals, always read the manufacturer's instructions and their
compatibility with the materials that make up the installation.
Antifreeze
In case the installation is to operate in refrigeration mode, it is mandatory
to use anti-freezing. In installations that do not operate in refrigeration
mode, antifreeze must be used when there is a risk of freezing during a
period of non-operation or due to environmental conditions. Antifreeze
solutions must use propylene glycol with a Class 1 toxicity index. Ethylene
glycol must never be used in the primary circuit.
Problems arising from poor water quality or not having treated water as
described herein are not covered by the product warranty.
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