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Note: Never leave the system filled with raw untreated water for any length of time.
In order to guarantee the optimal performance of the unit check that the water quality is
within BSRIA and CIBSE requirements and guidelines.
SCALE BUILD UP AND CORROSION
Topping up the circuit with non treated fresh water
can produce:
Dissolved oxygen – Thus leading to potential corrosion
Carbonates: (produce scale build up): the water top ups must be reduced to
the minimum.
N.B: Scale and other residues may clog the heat meters within the ModuSat units,
causing errors in the energy consumption calculations.
WATER TREATMENT IS A STRICT REQUIREMENT AND MUST BE CHECKED IN THE
FOLLOWING CASES:
Circuits with large capacity that produce large amounts of dissolved oxygen.
Frequent top ups due to leaks, repair and maintenance.
Use of water with characteristics that are not in line with the recommendations
within this manual or in line with BSRIA / Evinox requirements.
4.3 Precautions
The correct operation of the unit, as well as the entire system, depends on good water
quality. Water treatment is often an afterthought and consideration is not given to the
amount of damage that can result from a poor cleaning and treatment regime.
The warranty of the ModuSat storage unit is strictly related to the
instructions and procedures indicated in this manual and the warranty does
not cover any damage caused by scale and/or corrosion resulting from
poor water quality.
The components and materials used in the system assembly should also be checked to
ensure they do not contribute to dissolved oxygen that can cause corrosion.
Also:-
Ensure there are no depression pockets in the system
Remove gas permeable parts and materials
Ensure the expansion vessels are properly sized and the pre-charge pressure value in
order to guarantee positive pressure, with respect to the ambient pressure, throughout
the circuits.
Use suitable chemicals (such as BIONIBAL available from Evinox), which are suitable
for the materials and equipment used and that
PREVENT/INHIBIT CORROSION
.
Please note: If the completed installation includes boiler plant supplied by Evinox,
then only BIONIBAL, which is approved by Evinox, should be used in the primary
and secondary circuits.
Our technical personnel, who will visit the project during the course of the
installation and at its completion to arrange for its final commissioning and
calibration, do so to assist the contractor and install team. This is to deal with any
questions and queries; they do not perform the role of quality control or inspector of the
installation or provide approval for the works carried out. The systems compliance with the
consultant’s requirements and current standards and legislation remains the exclusive
responsibility of the installer / M&E contractor and comments provided by Evinox are for
guidance & advice only.
