12
3.2.3 On-roof flue gas outlet
If the flue gas outlet is on the roof, it is
necessary to use the 60-mm terminal
provided.
This means that the end section must be
60 mm in diameter.
If 35-mm pipes are employed it is
necessary to use the 35/60 mm adaptor
(W in fig. 18) supplied as an optional.
W
3.2.4 Length of the air intake and
flue gas pipes
The maximum pipe length depends
on the load loss of the individual
component parts used from the
radiator to the air intake and flue gas
outlet points.
The total amount of the load losses,
calculated according to the values
reported in table 2, must not exceed the
specified "Total Maximum Load Loss”.
The quantity must include both the flue
gas and the air intake pipes, and it varies
according to the diameter of the pipes
used (35 or 60 mm).
* Compulsory with air-intake pipes if the total load loss (air- flue gas outlet) is less than or equal to 4 Pa..
** Compulsory with air-intake pipes if the load loss on the air-intake pipe is less than or equal to 4 Pa..
GAZELLE TECHNO CLASSIC
3000
5000
Maximum load loss
Pa
8
12
Outside diameter of the pipe
mm
35
60
35
60
Starting 90° elbow for twin pipe adaptor
Pa
2
-
2
-
90° elbow
Pa
0.5
0.2
2
0.75
45° elbow
Pa
-
0.1
-
0.35
Pipe
Pa/m
0.5
0.2
2
0.75
Air-intake/flue gas standard terminal
Pa
0.5
-
1
-
Air-intake/flue gas single terminal
Pa
0.25
0.2
0.5
0.3
Ø 25 mm diaphragm (see * and **)
Pa
4*
-
2**
-
Horizontal condensate drain
Pa
0.5
0.2
1
0.3
90° Ø 35 mm vertical condensate drain
Pa
2
-
2
-
Ø 60 mm vertical condensate drain
Pa
-
0.2
-
0.3
35/60 adaptor
Pa
-
0.2
-
0.2
Roof terminal
Pa
-
0.1
-
0.2
table 2
fig. 18
Attention:
The 7000 CLASSIC model can be installed with the standard supplied pipes only (60 cm).
Split systems can not be installed!