Requirements And Regulations; Flue Gas Connection; Connecting The Flue; Air / Flue Gas Connection - Rendamax R3 EVO Serie Manual De Uso E Instalación

Installation

Air / Flue gas connection

Requirements and regulations

Regulations for the construction of flue
gas systems are very different for each
country. It should be ensured that all
national regulations with regard to flue
gas systems are respected.
Pay attention to the following
recommendations when dimensioning a
flue gas system.
Only approved flue gas material may be
used.
The flue gas system must be properly
calculated to ensure a safe functioning
of the system.
Flue gas system components should be
removable for maintenance purposes.
The installer is responsible to apply
the correct diameter, length and type
of flue gas system. If any questions
arise during the calculation contact
your local manufacturer office for more
information.
You have to take in consideration the
following material requirements.
Pressure class
Flue resistance
<200Pa
Flue resistance
>200Pa
<5000Pa

Flue gas connection

Connect the flue gas system to the flue
gas connection (5) of the boiler, use flue
gas systems with seamless connections
only. It's not necessary to make a
separate condensate drain for the flue
gas system, as the condensate will be
drained via the syphon of the boiler.
Please note the
following issues:
• We recommend using the flue
gas connection diameter as the
minimum diameter for the flue
system.
• The diameter of the flue gas
system must be chosen by
calculation according to the national
regulations.
• Construct the flue gas system as
short as possible (for maximum
length see page 31).
• Construct horizonal ways with a
minimum angle of 3°.
EN -
Operation and Installation manual
Temperature
class
P1 Min: T120
H1 Min: T120

Connecting the flue

The flue gas system must not be in
contact with or placed near flammable
materials, and must not cross building
structures or walls made using
flammable material.
This boiler has an integrated high
limit thermostat function for the flue
gases. When the max. flue gas
temperature is exceeded, the burner
is switched off. With this function, an
additional (external) safety device is not
necessary.
When replacing an old boiler, the
ventilation and flue gas exhaust system
must always be replaced.
The flue gas system should be created
using a male/female coupling and
a seal. Couplings should always be
arranged so that they go against the
direction of the condensate flow.
Condensate
Corrosion class
resistant
V1, V2 or
W Vm
V1, V2 or
W Vm
The table in the next page shows the
maximum permissible flue resistance
were the boiler is still working within
specifications. Nominal heat input -5%.
Fire resistant
E or
higher
E or
higher
5
29