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technical report from the entity responsible for executing such procedures or,
alternatively, the filled in maintenance log provided in the corresponding section of the
instruction manual.
3.9 To avoid damages to the equipment due to overpressure, safety measures must be
taken during the installation of the unit, namely by installing pressure safety valves or
thermal safety valves, as applicable, as well as an expansion vase suited to the size of
the installation and operating properly. Please note: The above mentioned valves must
have a pressure rating equal or less than the pressure supported by the equipment. No
cutting valve must exist between the equipment and respective safety valve. A
thorough preventive maintenance plan must be in place to ensure the proper operation
of all the safety mechanisms. Regardless of the type of equipment, every safety valve
must be directed to siphoned drainage to prevent damages to the house caused by
water discharges. The Product’s Warranty does not include damages caused by the lack
of a piping system for the water discharging from such valve.
3.10 To prevent damages to the equipment and attached pipes due to galvanic
corrosion, we recommend using dielectric separators to connect the equipment to the
metallic pipes, since the applied materials may have components that enhance this
type of corrosion. The Product’s Warranty does not include damages caused by failure
to use the dielectric separators mentioned above.
3.11 The water or thermal fluid used for the heating system (water models of Free
Standing Fire units, Boilers, Central Heating Stoves, etc.) must comply with the
requirements of the applicable law, in addition to ensuring the following physical and
chemical properties: absence of solid suspended particles; low conductivity level;
residual hardness within 5 to 7 French degrees; neutral pH, close to 7; low
concentration of chloride and iron; and absence of air inlets by draught, or other inlets.
In case the installation promotes automatic water make-up, this system must
accommodate an upstream preventive treatment system consisting of filtration,
decalcification and preventive dosage of polyphosphates (encrustation and corrosion),
as well as a degassing step, if necessary. In the event any of these indicators show
figures different from the recommended values, the Warranty shall be void.
Summary of Contents for Douro 12kW
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Page 58: ...57 18 Electrical Diagram of the Free Standing Fire Unit Figure 40 Electrical diagram ...
Page 70: ...69 21 Annexes 21 1 Flow chart Lighting ...
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Page 72: ...71 Disabling ...