26
INSTALLER
INSTALLER
NEUTRALISATION UNIT TYPES HN2-NH3 (with pump)
HN2 and NH3 neutralisation units are designed for systems with
boiler condensate drain pits at a higher level than the boiler
condensate drain fitting.
The maximum head that the pump can overcome consists of
its maximum head minus the resistance of the drain pipe. The
pump is controlled by an electrical level switch.
Refer to the instructions provided to connect these neutralisa-
tion units up electrically. The protection rating of electrical con-
nections is IP54.
Type
HN2
HN3
Consumption (W)
40
45
Power supply (V~Hz)
230 ~ 50
230 ~ 50
Maximum flow rate of
neutralised condensation
(litres/hour)
34
90
Dimensions (mm)
420x300x290
640x400x320
Quantity of granulate (kg)
25
50
Circulator maximum head
(m)
6
4
Fitting Ø
1" - 5/8"
1" 1/2 - 5/8"
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 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.
9
Hoses should also be fixed to the floor and suitably protect-
ed whenever possible.
B
H max (m)
(*)
5/8” (HN2)
5/8” (HN3)
A
C
1"
(HN2)
1"1/2(HN3)
(*) The maximum head that the pump can overcome consists of
its maximum head minus the resistance of the drain pipe.
