26
3 10 3 Use of old flue pipes
The
VERVE i
boiler's discharge pipe cannot be connected
directly to any pre-existing flue pipes utilized for other pur-
poses (kitchen hoods, boilers, etc.). It is however possible
to use an old flue pipe or duct, that is no longer suitable for
its original purpose, as a technical casing, and to insert the
boiler's discharge and/or suction pipes inside it.
3 10 4 Preparation for the condensate drain
The evacuation of the condensate produced by the
VERVE
i
boiler during its normal operation must be carried out at
atmospheric pressure, by dripping into a siphoned recep-
tacle connected to the local drain or sewer system, accord-
ing to the following procedure:
- Create a drip collection receptacle under the con-
densate drain (see the position in Fig. 1);
- Connect the drip collection receptacle to the local
drain or sewer system using a siphon.
The drip collection receptacle can be created by installing
a dedicated cup, or even a simple poly propylene curve,
suitable for receiving the condensate that comes out of the
boiler and any liquid leaks from the safety valve.
The maximum distance between the boiler's condensate
drain and the collection cup (or cupped piping) must not
be less than 10 mm.
The connection to the local drain or sewer system must
be created using a siphon in order to prevent unpleasant
odours from being released.
We advise using plastic (PP) piping for building the con-
densate drainage.
Never use copper pipes under any circumstances, as the
condensate itself will cause them to rapidly deteriorate.
min: 300 mm
disjunctor
minimum
distance
condensate basing
(at atmospheric pressure)
i >3% residential
discharge
condensate from
heat exchanger
Fig. 25
If the vertical or horizontal tract of the discharge pipe needs
to be extended for a length beyond 4 metres, a siphon for
draining the condensate must be installed at the base of
the pipe.
The siphon's useful height must be equal to at least 300
mm (see the image below)
The siphon's drain must subsequently be connected to the
local drain or sewer system.
min: 300 mm
Fig. 26
