Ferroli OPERA 70 Instrucciones De Uso, Instalación Y Mantenimiento página 151

OPERA
components, as well as at least once a year during mandatory routine maintenance operations as required by UNI
8065). The water must have a clear appearance and respect the limits given in the following table.
WATER PARAMETER
Total filling water hardness (°f)
Total system water hardness (°f)
PH
Copper Cu (mg/l)
Iron Fe (mg/l)
Chlorides (mg/l)
Conductivity (µS/cm)
Sulfates
Nitrates
* In the presence of conditioners, the limit increases to 1200 µS/cm.
In case of differing values or difficult verification of values with conventional analysis/testing procedures, contact the
company for additional evaluations. The conditions of the feed water to be treated can vary even significantly depending
on the geographical areas where the systems are located.
Chemical conditioners deoxygenating, anti-scaling, corrosion inhibiting, anti-bacterial, anti-algae, frost protection, PH
correction products, etc., must also be suitable for the materials of the generator and system. They must be put in the
system respecting the quantity indicated by the supplier of the chemical product and verified in their concentration.
B
A chemical conditioner in insufficient concentration will not be able to ensure the
required protection.
Always check the product concentration each time it is added and cyclically, at
least once a year, using qualified technical personnel such as our authorized tech-
nical assistance network.
Table 3- Chemical conditioners declared suitable and available at our network of Authorized Tech-
nical Assistance Centers
LIFE PLUS/B - MOLY - MOLY K
LIFE DUE
BIO KILL
PROGLI
Products with equivalent characteristics may be used
The unit is equipped with a frost protection system that activates the boiler in heating mode when the system delivery
water temperature falls below 6°C. The device is not active if the power and/or gas supply to the unit is turned off. If
necessary, for system protection use a suitable anti-freeze liquid that meets the same requirements as set out above
and provided for by UNI 8065.
In the presence of adequate chemical/physical system and feed water treatments and related high cyclicity controls able
to ensure the required parameters, for industrial process applications the product can be installed in open-vessel sys-
tems with vessel hydrostatic height able to ensure compliance with the minimum operating pressure indicated in the
product technical specifications.
To ensure the reliability and correct operation of the boilers, always install a mechanical filter in the loading
circuit and, in the system, a dirt separator (possibly magnetic) and a deaerator as required by the UNI 8065 as
well as a volumetric meter on the system replenishment line.
B
Failure to comply with the provisions of this paragraph, "System water fea-
tures", will involve non-recognition of the warranty and damage due to such
shortcomings.
EN
Description
Molybdenum-based corrosion inhibitor
Noise reduction/anti-scaling maintenance
Biocidal anti-algae
Propylene frost protection
cod. 3541R963 - Rev. 00 - 09/2021
EXISTING SYSTEM
<10
<15
7 < Ph < 8.5
Cu < 0.5 mg/l
Fe < 0.5 mg/l
Cl < 50 mg/l
< 600 µS/cm*
< 100 mg/l
< 100 mg/l
Sentinel type alternative products
X100
X200
X700
X500
NEW SYSTEM
<10
<10
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