elco TRIGON L PLUS, Operating Manual

Page: 33 / 108

33
Parallel boiler connection
The boiler comes as standard with a
parallel connection for the flue gas
outlet and air supply system.
For the air supply opening (1) diameter
and the flue gas outlet connection (2),
see table below.
The air supply channel can be
connected to it, or, if it involves an
“open device” (Drainage category B),
an air filter is recommended.
Concentric boiler connection
The boilers 60-70-100-120-140 can be
converted into a concentric connection
using the parallel/concentric adapter
100/150 (optional) and carrying out the
following tasks:
- Open and remove the frontal
panel and the top panel (follow the
instruction on page 42.
- Lift the parallel connection.
- Disconnect the main switch 230V
connection and remove it.
- Replace the parallel connection
with parallel concentric adapter.
- Connect and fit the main switch
230V according to previous
configuration.
The air supply opening has a diameter
of ø150mm.
The flue gas outlet connection has a
diameter of ø100mm.
The flue gas outlet-/air supply system
is then connected to the concentric
connection component.
Installation
Connections
Air- / flue gas ducts for individual boilers
The TRIGON L PLUS-boilers can be
used both in an “open” and in “closed”
system.
Open system
The required combustion air is taken
from the immediate environment
(boiler room). For this purpose, please
comply with the applicable boiler room
ventilation regulations.
When using boiler category B23 and
B33 as an ‘open boiler’, the protection
degree of the boiler will be IPX0D
instead of IPX4D.
An air filter or a grid is recommended
on the air intake of the boiler (available
as an accessory on pages 15-17.
Closed system
The required combustion air is sucked
in from the outside through a channel.
This improves installation possibilities
within a building. In general, outside air
is cleaner than air from the boiler room.
When the boiler is op erational,
it produces a white plume of
condensation. This condensation
plume is harmless but may cause
some inconvenience, particularly
in the case of wall terminal. As a
result, roof terminals are preferred.
In a closed installation, roof
terminals should be at the same
height preventing flue gas from
being sucked in by the other boiler
(recirculation). Outlets in recesses
and near erected walls may also
bring about flue gas recirculation.
Recirculation has to be prevented at
all times.
For installation in UK please refer to
installation guidance in BS6644 and
IGE UP10.
Boiler type Air duct - flue gas
diameter
60 100 - 100
70 100 - 100
100 100 - 100
120 100 - 100
140 100 - 100
170 130 - 130
200 130 - 130
2 1
2
4
1
3
Fan settings correction
By setting parameter (21-2-4) it is
possible to compensate for a higher
flue gas pressure difference. It is
required to have a pressure drop
calculation of the applied flue gas
system.
According the calculated pressure
drop, the correct value for parameter
(21-2-4) has to be chosen from the
table below.
For setting parameters see the
applicable chapter.
Flue Gas System pressure drop
Boiler type
Parameter (21-2-4)
60 70 100 120 140 170 200
0 - 600 161 156 243 143 200 215 265
700 189 204 295 177 230 280 321
800 226 224 350 207 275 313 370
900 250 250 405 240 300 375 -
1000 278 278 457 260 304 375 -