Immergas MYTHOS HP - Flue Exhaust to Flue;Chimney; Flues, Chimneys and Chimney Caps

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INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1.21 FLUE EXHAUST TO FLUE/CHIMNEY.
Flue exhaust does not necessarily have to be connected to a bran-
ched type traditional ue for type B appliances with natural drau-
ght (CCR).
e ue exhaust, for boiler clots installed in C conguration, can
be connected to a special LAS type multiple ue.
For B22 congurations, exhaust is only allowed into individual
chimney or directly into the external atmosphere via a relevant
terminal, unless otherwise provided by local regulations.
e multiple ues and the combined ues must also only be con-
nected to type C appliances of the same type (condensation), ha-
ving nominal heat inputs that do not dier by more than 30% less
with respect to the maximum that can be attached and powered by
the same fuel.
e thermo-uid dynamic features (ue ow rate, % of carbon
dioxide, % humidity etc.) of the appliances attached to the same
multiple ues or combined ues, must not dier by more than 10%
with respect to the average boiler attached.
e multiple ues and the combined ues must also only be con-
nected to type C appliances of the same type (condensation), ha-
ving nominal heat inputs that do not dier by more than 30% less
with respect to the maximum that can be attached and powered by
the same fuel.
Chimney or ue sections for connection of the ue exhaust pipe
must comply with requisites of technical standards in force.
It is possible to replace a type C conventional device with one pro-
vided with condensation only, if the derogation conditions
established by the regulations in force have been veried.
1.22 FLUES, CHIMNEYS AND CHIMNEY CAPS.
e ues, chimneys and chimney caps for the evacuation of com-
bustion products must be in compliance with applicable stan-
dards.
Chimneys and roof-installed exhaust terminals must comply
with the outlet height and with the distance from technical volu-
mes set forth by the technical standards in force.
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Positioning the wall ue exhaust terminals.
e wall ue exhaust terminals must:
- be installed on external perimeter walls of the building
(Fig. 33);
- be positioned according to the minimum distances specied in
current technical standards.
Combustion products exhaust of natural draught or fan
assisted appliances in open-top closed environments.
In spaces closed on all sides with open tops (ventilation pits, cour-
tyards etc.), direct combustion product exhaust is allowed for na-
tural draught or fan assisted gas appliances with a heat input range
from 4 to 35 kW, provided the conditions as per the current tech-
nical standards are respected.