Adisa NEO FIRE 120, Техническое руководство по установке, использованию и обслуживанию

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NEO FIRE – Technical Manual
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16.7 Hydraulic installation
16.7.1 Data to be considered
Concept Value
Minimum water working pressure 1 bar
Maximum water working pressure 6 bar
Maximum flow temperature 90ºC
Minimum water pressure safety device
The boiler includes a water pressure switch, that stops the boiler when the water pressure achieves a
minimum value. It stops at 0.8 + 0,1 bar, and reactivates at 1 + 0.2 bar.
It is important to consider the following instructions (see hydraulic diagrams):
Cut-off/closing valves in the flow and return pipes of each boiler.
Do not weld the boiler to the installation piping.
- Models NEO FIRE 80 to NEO FIRE 280: male threaded flow-return connections of 2”.
-
Models NEO FIRE 360 to NEO FIRE 900: DN100 PN 16
Closed expansion vessel, calculated and installed according to the regulations.
Overpressure safety valves and boiler draining in accordance with the current regulations.
A pressure switch whose function is to stop the boiler if the hydraulic pressure is lower than the minimum
value.
An automatic air vent of big capacity, installed in the flow pipe or in the higher part of the flow circuit of the
installation.
A filter with a stainless-steel mesh of 0.3 mm in the heating return of every boiler.
A water meter in the refilling of the primary circuit.
A drain pipe for the evacuation of condensate: it must be connected to the drainage of the boilers room and it
is important that the outlet is visible to verify if it condenses.
16.7.2 Overpressure safety valve
The boilers maximum operating pressure is 6 bar. This value must never be exceeded and precautions must
be taken to avoid this could happen, even accidentally.
It is important to install overpressure safety valves in each boiler, according to the current regulations and to
the equipments installed. Minimum dimensions of the safety valve:
NEO FIRE
80 120 160 200 240 280 360 450 540 630 720 810 900
INCHES
1 1 1"1/4 1"1/4 1"1/4 1"1/4 1"1/2 2" 2" 2" 2" 2" 2"