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Following are the tables of the maximum equivalent lengths for
the different available models.
EQUIPMENT CONFIGURATION TYPE B "OPEN"
Description
Maximum equivalent
length of flue gas exhaust
pipe
(*) This length must be reduced by 1 metre for every 90° curve
and by 0.5 metres for every 45° curve.
EQUIPMENT CONFIGURATION TYPE C "SEALED"
If comburent air is drawn from outdoors, the appliances are type
C "sealed" and the boiler room does not require ventilation.
9
For this configuration the settings of the parameters shown
in "Configuration of fan parameters for type C appliance
configurations" must be changed.
Split ducts
The boiler must be fitted with the relevant kit for use in these
configurations. (See the manual provided with the kit for instal-
lation instructions).
Split ducts can be oriented in the direction most suitable to the
room needs, respecting the specified maximum lengths.
Description
Maximum equivalent
length of flue gas exhaust
pipe
(*) This length must be reduced by 1 metre for every 90° curve
and by 0.5 metres for every 45° curve.
Coaxial ducts
The boiler must be fitted with the relevant kit for use in these
configurations. (See the manual provided with the kit for instal-
lation instructions).
Coaxial flues can be oriented in whatever direction is most con-
venient for the room, provided the maximum specified lengths
are respected.
Description
Maximum equivalent
length of flue gas exhaust
pipe
(*) This length must be reduced by 1 metre for every 90° curve
and by 0.5 metres for every 45° curve.
TAU Unit
50
70
100
115
20(*)
TAU Unit
50
70
100
115
10+10(*)
TAU Unit
50
70
100
115
7(*)
2.8.3
Preparation for the condensate drain
9
Always maintain a slope "i" of over 3° and ensure that the
diameter of any hose used is greater than that of the boiler's
own condensate drain pipe.
9
The connection to the drainage system must be made ac-
m
cording to current laws in compliance with any local regu-
lations.
i≥3°
i
9
Fill the siphon with water before you start up the boiler to
prevent combustion gases escaping into the room during
the first few minutes of boiler functioning.
9
Condensate from the boiler and from the flue should be
channelled to the same drain point.
9
The base of the equipment must be horizontal and levelled
m
in the frame resting area in order to let the condensate
evacuate easily.
boiler
condensate
at discharge
or neutralisation
m
of condensate
9
Any condensate neutralisation devices can be connected
after the siphon. For the calculation of the duration of the
neutralisation load, the amount of neutraliser consumption
must be evaluated after one year of operation. The total du-
ration of the load can be extrapolated from this information.
To select the type of neutralisation unit to use, consult the
Catalogue or contact the dealer who sold the boiler.
19
flue gas outlet
flue
condensate
drain
INSTALLATION
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