Adisa ADI LT 105, Техническое руководство по установке и обслуживанию

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ADI LT boiler – Technical manual Page
38
15.7.4 Water manifold
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It avoids hydraulic unbalances between the circuits and the boilers.
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It ensures a constant water flow to the boiler, independently from the
consumptions required. In accordance with current regulations.
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In case of heavy sludge in the water, it drives it to the bottom of the tank. It
can not avoid lighter sludge.
It is necessary to install (2) an automatic purger of big capacity in the higher
part of the tank, (3) an appropriate drainage with a diameter of 50/60, and
optionally, (1) a manual purger with a diameter of 15/21.
According to the total power installed (the sum of the heating output of all the boilers installed), we can calculate
the dimensions of the water manifold, as shown in this chart: diameter (inches) and minimum height.
Installations with a sufficient inertial volume and a constant water flow, without interruption.
These are installations where the main circuit/s has/have a minimum water capacity ensuring a constant and
uninterrupted water flow to the boilers (unless the boilers stop). For example:
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Heating circuits with a main loop to which are connected A.H.U., fan-coils, where there are the regulation
elements and valves. This loop will have a sufficient water capacity to ensure a constant water flow to the
boilers.
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Renovation of old boilers rooms (previously located in the basement) which have been moved to the top of
the building or terrace, where the flow and the return piping connecting the new boilers room to the old one
have a sufficient water capacity to guarantee a constant water flow, without interruption, through the boiler.
See system drawings.
5
10
15
20
25
30
100 300 500 700 900 1100 1300 1500 1700 1900
kW
D
iá
m
e
tr
o
(
p
u
lg
a
d
a
s
)
2300
1900
1550
1000
750
600
1200
Min. height