Layout Of Boiler; Operating Principle - elco THISION L 50 Notice D'installation Et D'emploi

Construction

Layout of boiler

Operating principle

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Operating principle
The THISION L is a fully modulating
boiler. The control unit of the boiler
adapts the modulation ratio automati-
cally to the heat demand requested 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 therewith the
best efficiency. The flue gases created
by the combustion are transported
downwards through the heat exchanger
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and leave the boiler at the top 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
heat exchanger, in order to leave the
boiler at the flow connection. The cross
flow working principle (water up, flue
gas down) ensures the most efficient
combustion results.
Layout of boiler
The THISION L boiler consists of the
following main components:
1 Casing
2 Control panel
3 Flue gas connection (+ test point)
4 Air intake connection (+ test point)
5 Flow water connection
6 Return water connection
7 Gas connection
8 Syphon
9 Input for wiring
10 Connection for safety valve
11 Connection for fill/drain valve
12 Manometer
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13 Fan
14 Gas valve
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15 Ignition and ionisation electrodes
16 Heat exchanger
17 Inspection window
18 Ignition transformer
19 Electrical input connections
20 Controller
21 Condensate receptacle
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The LMS14 control unit can control the
boiler operation based on:

Boiler control (stand alone operation);

weather compensated operation
(with optional outdoor sensor);

with 0-10V external influence
(temperature or capacity) from a buil-
ding management system.