26
INSTALLER
INSTALLER
3.9
Condensate evacuation
TAU N
condensing boilers produce a flow of condensate that
varies according to operating conditions. The maximum hourly
production of condensate is shown in the technical specifica-
tions table for each individual model.
The condensate outlet must be sized according to this value and
at no point must the diameter be less than the diameter of the
boiler condensate discharge (7).
In order to avoid the release of combustion products in the ther-
mal room, it is necessary to insert the trap supplied with the
boiler in the condensation drain path. The connecting pipes be-
tween the boiler, siphon and waste water drain pit must be laid
at a minimum down slope of 3° and must be installed in such a
way as to prevent any build-up of.
The siphon is equipped with a tapping point (G 1/8") which a
pipe can be connected to, to equalise the pressure between the
siphon and the exhaust flue.
9
Check and clean the condensation drain line on a yearly ba-
sis.
9
The connection to the waste water drain pit must be made
in compliance with national and local legislation and
standards.
Pressure
measurement
fitting
Connection
pipe
Inspection
cap
BOILER
SIPHON
0
-50
+0
0
7
Hose
clamp
≥
3°
≥
3°
9
Before commissioning, fill the siphon with water up to level
“L” in line with the top fitting.
H
2
O
L
3.10
Neutralising the condensate
TYPE N3 NEUTRALISATION KIT
The TYPE N3 neutralisation units were designed for systems
equipped with the central heating plant condensate outlet trap
located lower than the boiler condensate outlet. This neutrali-
sation unit does not require electric connections.
Type
N3
Maximum flow rate of neutralised con-
densation (litres/hour)
180
Dimension (mm)
640x400x240
Q.ty of granulate
50 kg
Fitting Ø
1" 1/2
A
B
C
The inlet fitting (A) of the N2 neutralisation unit (the lower fit-
ting) must be connected to the boiler condensate drain fitting
using the flexible hose (C) supplied. This condensate drain hose
is specially made to prevent combustion fumes escaping into
the atmosphere.
The outlet fitting (B) of the neutralisation unit (the top fitting)
must be connected to the boiler room’s waste water drain pit
using another section of flexible hose (not supplied).
9
The boiler room’s condensate drain pit must be located at
a lower level than the fitting (B) on the neutralisation unit.
9
The connection pipes used must be as short and straight as
possible and corrosion-resistant. Any curves or sharp bends
can lead to the hoses becoming clogged and can therefore
prevent proper condensate discharge.
If it is necessary to neutralise condensation produced in the
chimney, we recommend to connect the condensation drains of
boiler and chimney using a tee connector and then get them to
the neutraliser inlet.
9
Make sure that you tighten the hose clamps sufficiently.
