NEO FIRE – Technical Manual
53
16.7.4
Water manifold
It avoids hydraulic unbalances between the circuits and the boilers.
It ensures a constant water flow to the boiler, independently from the consumptions
required. In accordance with current regulations.
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 air vent 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 air vent with a diameter of 15/21.
Inertial volume
OPTION 1 (see text)
OPTION 2 (see text)
Nr. Boilers
1 boiler
2 boilers
3-4 boilers
1 boiler
2 boilers
3-4 boilers
NEO FIRE 80
20 lit.
40 lit.
65 lit.
30 lit.
65 lit.
100 lit.
NEO FIRE 120
30 lit.
65 lit.
100 lit.
50 lit.
100 lit.
150 lit.
NEO FIRE 160
50 lit.
100 lit.
150 lit.
75 lit.
150 lit.
200 lit.
NEO FIRE 200
65 lit.
125 lit.
175 lit.
100 lit.
175 lit.
250 lit.
NEO FIRE 240
65 lit.
150 lit.
200 lit.
125 lit.
250 lit.
350 lit.
NEO FIRE 280
80 lit.
175 lit.
250 lit.
125 lit.
250 lit.
400 lit.
NEO FIRE 360
100 lit.
200 lit.
300 lit.
150 lit.
300 lit.
500 lit.
NEO FIRE 450
125 lit.
250 lit.
400 lit.
200 lit.
400 lit.
600 lit.
NEO FIRE 540
150 lit.
300 lit.
500 lit.
250 lit.
500 lit.
700 lit.
NEO FIRE 630
200 lit.
400 lit.
600 lit.
300 lit.
600 lit.
1000 lit.
NEO FIRE 720
250 lit.
500 lit.
700 lit.
350 lit.
700 lit.
1000 lit.
NEO FIRE 810
250 lit.
500 lit.
700 lit.
350 lit.
700 lit.
1200 lit.
NEO FIRE 900
250 lit.
500 lit.
800 lit.
400 lit.
800 lit.
1200 lit.
This inertial volume may be distributed between (see system drawings in this document):
Water header / collectors linked by a by-pass (not closed) or one common water header / manifold.
Water pipes between header / collector and boilers.
OPTION 1:
Boiler cascade (for 2 or more boilers) managed by the boiler control:
Siemens LMS
Similar controller from another trademark with 0…10 V control signal (one signal per each boiler), to control
the cascade of several boilers.
Caution: when the consumption required is DHW instantaneous production (that means no DHW buffer
vessel) with quick and high consumption peaks
the inertial volume of Option 2 must be used.
OPTION 2:
No controller manages the boiler cascade (for 2 or more boilers at the same circuit).
Instantaneous DHW production.
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:
Содержание NEO FIRE 120
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Страница 6: ...NEO FIRE Technical Manual 6 4 BOILER GENERAL VIEW DESCRIPTION OF THE COMPONENTS NEO FIRE 80 280 ...
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Страница 37: ...NEO FIRE Technical Manual 37 Electric drawing 1 Boiler with 3 heating circuits ...
Страница 41: ...NEO FIRE Technical Manual 41 System drawing 1 Boiler and Domestic Hot Water DHWS ...
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Страница 59: ...NEO FIRE Technical Manual 59 System drawing of an old installation heating circuit 11 ...
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