Residual Hazards - flamco Flexcon VSV Instrucciones De Instalación Y Funcionamiento

• The heat generators in question must be fi tted with safety valves as a safeguard against
excessive pressure. In this regard, each heat generator may not be fi tted with more than three
safety valves. They must be fi tted in easily-accessible areas, specifi cally at the highest point of
the heat generator in question, or in the immediate vicinity of the hot leg.
• Each heat generator that is protected over 3 bar or has more than 350 kW nominal heat output
must be fi tted with a governor. The governors must be confi gured so that they cut in before
safety valves.
• Please observe any additional local (national) regulations relating to temperature and pressure
safeguards when installing the Flexcon VSV and V-B intermediate vessels.

3. Residual hazards

Residual hazards of installation of the Flexcon VSV and V-B intermediate vessels may be formed
by improper installation, non-adherence to the installation parameters, incorrect use of the vessel
or non-adherence to the safety regulations for heat-generation units.
The pressure in intermediate vessels must be released before any installation or servicing work.
Attention:
Water in vessel above 70 °C, max. operating temperature 120 °C / 160 °C. Do not touch the
vessel when it is in operation without adequate protection. There is no insulating material needed
around the vessel so the wall temperature will be approximately at the temperature of the fl uid
stored inside which may be in excess of 70 °C.
4. Service and regular inspections
The producer of a heat-generation unit must provide an operating and service manual for the unit
including data relating to the safe functioning of the safety equipment and sign the original with
the relevant customer that performed the commissioning.
The frequencies for in-service inspections of Flexcon VSV and V-B intermediate vessels are
recommended as follows:
• External inspection: once per year.
• Internal inspection: every fi ve years.
• Hydrostatic pressure test: every ten years.
• Inspection shall be made by the competent experts nominated in the user's country.
Regulations contained in the national legislation should be observed with preference.
6