27.08.2018
23 / 136
EVO S -
Installation and Servicing
IMPORTANT:
The combustion product extraction duct must be dimensioned by
using the parameters set out in the table in chapter 3.3.
Depending on the actual configuration of the duct, a calculation is
required to check that the pressures at the boiler outlet at Qmin, Qall
and Qn do not exceed the maximum allowable values in this table.
Values corresponding to the 50/30°C regime are to be used for this
calculation.
ø
duct
EVO S
Accessory part number
A (mm)
ø
125
50
219530
(contains parts
+
) *
310
ø
160
70 to 135
219531
(contains parts
+
) *
390
* : See figure 7.
IMPORTANT:
For this type of configuration, it is imperative to use an exhaust
system with technical evaluation document (ducts under pressure)
The Ø 160 (code 219531) chimney adapter have an outlet that cannot be cut.
A purge tee is not necessary, because condensate recovery is incorporated
in the boiler. To do this use a minimum slope of 3 % towards the boiler in the
horizontal parts.
To ease fitting coat the joints with liquid soap or an appropriate grease.
IMPORTANT:
If several boilers are connected to the same flue, check the following
by calculation:
• One boiler at Qmin and the others at Qmax: The outlet pressure
of the boiler at Qmin must be lower than the permissible pressure
specified in the table in Chapter 3.3.
• One boiler at Qall and the others at Qmax
: The outlet pressure of the
boiler at Qall must be lower than the permissible pressure specified
in the table in Chapter 3.3.
• All the boilers at Qmax
: The outlet pressure of the four boilers must
be lower than the permissible pressure specified in the table in
Chapter 3.3.
4.3.3. Connection to a C13 or C33 suction pipe
C13 type connection:
Air inlet and gas evacuation through concentric ducts connected to a
horizontal concentric terminal (suction pipe).
C33 type connection:
Air inlet and gas evacuation through concentric ducts connected to a vertical
concentric terminal.
