elco TRIGON XXL Series - Construction; Data Plate Information; Boiler Operating Principle

8
Construction
Data Plate
Operating principle
Symbols used on the data plate
1 Brand
2
Country of origin
3 Boiler model - Serial number
4 Commercial reference
5 Cercaon number
6
Desnaon country
- Gas category
7 Gas seng
8 Installaon type
9 Electrical data
10 Factory sengs
11 Maximum water pressure
12 Boiler type
13 NOx class / Eciency
14 Input rang nominal heang
15 Power output heang
16 Gases which may be used
17 Ambient operang temp.
18 Max. central heang temp.
26-05-2015
S/N 0000000KE000000000000
00
100% min.
ηη
= =
MAX MIN
Q(Hi)
P
P
60/80C
30/50C
gas
mbar
gas
mbar
gas
mbar
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Operating principle
The TRIGON XXL is a fully modulating
boiler.
The control unit of the boiler adapts the
modulation ratio automatically to the
heat demand requested by the system.
This is done by controlling the speed of
the fan. As a result, the mixing system
will adapt the gas ratio to the chosen
fan speed, in order to maintain the
best possible combustion gures and
therewith the best efciency.
The ue gases created by the
combustion are transported downwards
through the boiler and leave at the back
side into the ue system.
The return water from the system enters
the boiler in the lower section, where is
the lowest ue gas temperature in the
boiler.
In this section condensation takes place.
The water is being transported upwards
through the boiler, leaving the boiler at
the top (burner) section.
The cross ow working principle (water
up, ue gas down) ensures the most
efcient combustion results.
The LMS14 control unit can control the
boiler operation based on:
• xed ow temperature (stand alone
operation);
• weather compensated operation
(with optional outdoor sensor);
• 0-10V external inuence
(temperature or capacity) from a
building management system.