Precautions - Evinox ModuSat FS Series Installation Manual

• Clean the boiler room plant.
• Cleaning of the primary circuit, with the ModuSat FS isolating valves closed and the
flushing bypass fully opened.
• Cleaning of the horizontal pipework and the ModuSat FS unit.
• Cleaning of the apartment heating circuit.
• Use of a dirt separator in the boiler room and strainer on each ModuSat FS, which is
supplied as part of the valve kit, to provide additional system protection.
During the final fill and treatment the systems must be fully vented to remove all air, and
the system pressure adjusted to design requirements (that form part of the design criteria
and specification). If the tender specification does not enforce a particular standard then
Evinox requirements would be the BSRIA AG 1/2001.1 standard.
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.
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