elco TRIGON XL 300 Notice D'installation Et D'emploi page 22

Installation
Air intake connection
The air intake can be connected in
case of room sealed installation.
The cover (3) must be disassembled
in order to connect the air intake
piping to the connector inside the
boiler.
The diameter should be calculated
according to the national regula-
tions, together with the flue gas
system. The total resistance of both
systems should never overcome the
maximum permissible resistance of
the fan inside the boiler (see also
chapter: Technical data).
2
TRIGON XL -
Models: 115 - 150 - 200 - 250
22
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Flue gas connection
Connect the flue gas system to the
flue gas connection (4) of the boiler,
use flue gas systems with seamless
connections only. It's not neces-
sary to make a separate condensate
drain for the flue gas system, as the
condensate will be drained via the
syphon of the boiler. Please note the
following issues:
• We recommend to use the flue
gas connection diameter as the
minimum diameter for the flue
system.
• The diameter of the flue gas sy-
stem must be chosen by calcu-
lation according to the national
regulations.
• Construct the flue gas system as
short as possible (for maximum
length see page 23).
• Construct horizonal ways with a
minimum angle of 3°.
3
Legend:
1
1. Gas Connection
2. Electrical connection
3. Air intake connection
4. Flue gas connection
4
Connecting the flue
The flue gas system must not be in
contact with or placed near flam-
mable materials, and must not cross
building structures or walls made us-
ing flammable material.
This boiler has an integrated high
limit thermostat function for the
flue gases. When the flue gas tem-
perature exceeds 90 °C, the burner is
switched off. With this function, an
additional (external) safety device is
not necessary.
When replacing an old boiler, the
ventilation and flue gas exhaust sys-
tem must always be replaced.
The flue gas system should be cre-
ated using a male/female coupling
and a seal. Couplings should always
be arranged so that they go against
the direction of the condensate flow.
3
1
2
4
TRIGON XL -
Models: 300 - 350 - 400 - 500 - 570