13
Preventative measures
The following materials should be
used for condensate drains:
■
Aluminium, stainless steel,
silicone, Viton or EPDM hoses
for hot pipes through which
smoke is discharged;
■
For cold pipes, through which
only water flows, PVC pipes.
Do not use copper or galvanized
iron.
Anti-freeze protection
The condensate disposal system
must be effectively protected
against the freezing of the
circulating condensate.
It is recommended to install the
condensate collection system
within heated rooms. In the case
of outdoor installations, the pipes
must be connected by means of
an open connection downstream
of the siphon to prevent any
ice formation in the outdoor
installation from affecting the
drainage of the condensate.
It is nevertheless advisable that
the largest possible section is
located inside the heated room,
for example by collecting the
condensate near the ground with a
sloping pipeline in the room.
Free discharge
When the unit is installed outside
and if the outside temperatures are
not particularly low, no additional
line needs to be connected to the
condensate drainage line. It must
be verified that the water discharge
does not accumulate in the unit.
If the discharge is to occur via a
pipe, an open port (cup-shaped)
must be created to prevent the
formation of ice in the pipe
obstructing drainage of the
condensate, thereby causing an
accumulation of water in the heat
exchanger.
In the case of drainage pipes in
outdoor areas, it may be necessary
to heat these by means of a
heating element.
Discharge via rain gutters
Laying the condensate drainage in
the space to be heated is a good
solution to prevent the formation
of ice; the drainage of the
condensate can take place via rain
gutters or it can be collected and
treated with alkaline solutions.
Neutralisation of the condensate
The pH value of the resulting
condensate is between 2.4-4.2 for
heating oil and between 3.5-3.8
for natural gas.
If neutralization of the condensate
is necessary, the corresponding
articles are available as accessories.
The following articles are available
as accessories:
Neutralization box including
calcium carbonate
EDP no.: 260400
Acid-resistant condensate pump
EDP no.: 260410
Further information can be
obtained from Customer Service.
