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warmhaus.com
Figure 28
Hermetic vertical split
flue connection.
Figure 30
Exhaust gas discharge
through the building chimney
and fresh intake from the building
chimney with split flue sets
Figure 29
Building chimney
connection with hermetic split flue
Discharge to building chimney
and fresh air intake with split flue
connection
For room sealed appliances of the
type C8 boilers
a) overheat combustion products
temperature; < 105 C°
b) G20 : CO
2
-content; 9.00 % (
tol%0,5 / -0,5%);
G30 / G31: CO
2
-content; 10.00 %
( tol%0,5 / -0,5 %)
c) characteristics of the chimney
to which the boiler may be
connected, according to fig 13.
d) condensate flow into the
appliance is not allowed.
Exhaust gas discharge through the
building chimney and fresh intake
from outside with split flue sets
For room sealed appliances of the
type C6 boilers
overheat combustion products
temperature for flue;
< 105 °C G20 : CO
2
content at
nominal operating conditions;
9.00 % (tolerance : +%0,5 / -0,5
% ) G30 / G31 : CO
2
-content;
10.00 % (tolerance : +%0,5 /
-0,5 %) maximum allowable
draught and maximum allowable
pressure difference between
combustion air inlet and flue gas
outlet (including wind pressures);
120 Pa. characteristics and the
applications of the duct system to
which the boiler can be connected;
condensate flow into the appliance
is not allowed. Maximum allowable
temperature of combustion
air; 40 C° maximum allowable
recirculation rate of 10 % under
wind conditions.
Attention:
The terminals for the
supply of combustion air and for
the evacuation of combustion
products shall not be installed on
opposite walls of the building.
Exhaust gas discharge through the
building chimney and fresh intake
from outside with split flue sets
B
23
C
C
83
Flue outlets must not be subject to any blockage and must
not interfere with any other flue outlet. If the output pipe
passes 1000 mm nearby of a plastic or painted groove or
500 mm of painted fringes, an aluminium shield with at
least 1000 mm length should be placed below the groove
or fringe. Output pipe should be at least 2 m over surfaces
that may be reached by individuals.
Under certain weather conditions, output pipe may emit
water vapour; installation should not be performed at
places where this vapour may cause discomfort.
Exhaust gases should be prevented from entering flue
ventilation spaces.
Flue system of combi boiler may be installed from inside
the room without requiring intervention from the external
wall. For that reason, a housing should be installed in the
wall for lining the internal surface of channel wherein the
output pipe passes through, particularly for thick walls.
