5 Installation
12
Installation and maintenance instructions ecoTEC exclusive 0020186710_06
5.5
Connecting the heating flow and heating
return
1
▶
Establish the heating connections
(1)
in accordance with
the relevant standards.
5.6
Descaling the water
The probability of scale increases as the water temperature
increases.
▶
Descale the water as required.
5.7
Connecting the condensate drain pipework
min. 180
1
2
Danger!
Risk of death from escaping flue gases!
The siphon's condensate drain pipework
must not be connected to waste-water piping
because, otherwise, the internal condensate
siphon may be drained fully and flue gas may
escape.
▶
Do not connect the condensate drain
pipework tightly to the waste-water pip-
ing.
1.
Place the condensate drain pipework
(1)
onto the con-
densate siphon.
2.
If you have to extend the condensate drain pipework,
use only pipes that are made of acid-resistant material
(e.g. plastic).
3.
Leave an installation space of at least 180 mm beneath
the condensate siphon.
4.
Suspend the condensate drain pipework above the pre-
installed tundish
(2)
.
5.8
Installing the discharge pipe on the
expansion relief valve
1
▶
Install the discharge pipe
(1)
as shown (do not shorten).
5.9
Flue installation
5.9.1
Common air/flue gas installation
The static pressure in the common flue gas pipe may exceed
the static pressure in the common air pipe.
The common air/flue gas installation must have the following
properties:
–
The wind protection device for the air/flue gas system
must be designed in such a way that a negative pressure
is generated in the flue gas pipe in windy conditions.
–
Pressure difference between the flue gas evacuation
and the air supply at the inlet into the vertical part of the
air/flue gas installation:
Max. +25 Pa
–
Minimum permitted pressure difference between the flue
gas evacuation and the air supply at the inlet into the
vertical part of the air/flue gas installation:
Min. -200 Pa
–
The vertical part of the flue gas evacuation must at least
correspond to the classification EN 1443
–
T 120 P1 W 1.
–
The air/flue gas system must be planned by applying a
calculation according to EN 13384-2.
–
Vertical clearance between two flue gas connections:
Min. 2.5 m
–
To prevent the condensate siphon from drying out, the
heat generator must drain part (min. 10%) of the con-
densate from the vertical section above it.
–
A maximum of 10% of the flue gas may recirculate into
the air pipe under the effect of wind.
–
The air/flue gas system must have no overflow openings.
5.9.2
Horizontal part
The heat generator, together with the horizontal section of
the air/flue gas installation, is tested and certified as a sys-
tem.
Permissible accessories for the connection:
–
60/100 mm diameter: Air/flue gas system installation set,
article number 303923
