34
INSTALLER
The inlet fitting (A) of the HN2 neutralisation unit (the
lower fitting) must be connected to the boiler conden-
sate 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).
IMPORTANT
The boiler room’s condensate drain pit must be located
no more than 1.5 metres above the neutralisation unit.
9
All connecting hoses must be kept as straight and
as short as possible. Any curves or sharp bends can
lead to the hoses becoming clogged and can there-
fore prevent proper condensate discharge.
Hoses should also be fixed to the floor and suitably
protected whenever possible.
MAINTENANCE
The neutralisation unit should be serviced at regular in-
tervals (at least once a year) or as needs require. The
frequency of servicing depends on the characteristics of
the system. When servicing the unit, always check the
level of the granulate. The minimum granulate level is 15
cm below the top of the granulate box. The initial char-
ge of neutralisation product should be enough to last at
least one season of heating operation with maximum
condensate formation.
The easiest way to check the correct functioning of the
neutralisation unit is to use litmus papers for pH te-
sting. These are readily available from chemists’ shops
and chemical suppliers. Treated condensate leaving the
unit must have a pH between 6.5 and 9. If limescale
forms on the surface of the neutralisation unit, replace
the entire granulate charge.
B
(1”)
1,5 m
max
A
(1”)
C
NH2
