elco TRIGON XXL Series Planner Documentation

2 Speed controlled Venturi gas/
air mixing system
3 Water cooled premix burner
4 Water cooled stainless steel
heat exchanger :
3 levels for SE and ECO ver-
sions
5 Water cooled stainless steel
heat exchanger :
4 levels for EVO version
6 Pilot mixing system
7 Main mixing system
1
Gas condensing boiler TRIGON XXL
Technical description
Technical Description
The TRIGON XXL is a fully modulating
condensing boiler. The control unit of
the boiler adapts the modulation ratio
automatically to the heat demand re-
quested by the system. This is done by
controlling the speed of the fan. As a
result, the whirlwind mixing system will
adapt the gas ratio to the chosen fan
speed, in order to maintain the best
possible combustion figures and there-
with the best efficiency. The flue gases
created by the combustion are trans-
ported downwards through the boiler
and leave at the back side into the
chimney connection.
The return water from the system en-
ters the boiler in the lower section,
where is the lowest flue gas tempera-
ture in the boiler. In this section con-
densation takes place. The water is
being transported upwards through the
boiler, in order to leave the boiler at the
top (burner) section. The cross flow
working principle (water up, flue gas
down) ensures the most efficient com-
bustion results.
The LMS14 control unit can con-
trol the boiler operation based on:
 Boiler control (stand alone
operation);
 weather compensated operati-
on (with optional outdoor sen-
sor);
 With 0-10V external influence
(temperature or capacity) from
a building management sys-
tem.
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1 LMS14 boiler management
unit (HMI)
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elco TRIGON XXL Series Specifications

General

Brand	elco
Model	TRIGON XXL Series
Category	Boiler
Language	English