On-roof fitting and installation 4
0020159946_01 auroTHERM classic Installation manual
9
4.1.1.3 Transporting collectors
1.
To protect the collectors against damage, always trans-
port them horizontally.
2.
Transport the collectors to the roof using suitable aids.
4.1.2
Complying with clearances and installation
clearances
In order to fit the collectors correctly, the specified clear-
ances and installation clearances must be observed.
▶
For the necessary edge clearances, see chapter "Defin-
ing edge clearances of the roof brackets".
4.1.3
Selecting suitable connection
▶
When installing the collectors, observe the installation
instructions for the
auroFLOW plus
system.
▶
Select the appropriate connection for the collectors.
Conditions
: Array configuration: Adjacent
▶
Install a maximum of six collectors next to each other.
Note
Collector fields with 4-6 collectors must be
connected on opposite sides.
Note
If the collector field is connected on opposite
sides, the mounting rails must have an incline
to the lower connection (collector return) of
approx. 1%.
4.1.4
Preparing the roof duct
Caution.
Building damage due to penetrating wa-
ter.
If the roof duct is not prepared properly, water
may penetrate the building interior.
▶
Ensure that the roof duct is prepared prop-
erly.
1.
Make a v-shaped cut in the roofing felt membrane.
2.
Fold the upper, wider flap onto the roof batten above,
and fold the lower, narrower flap onto the roof batten
below.
3.
Fix the roofing felt membrane tight to the roof batten, so
that any moisture runs off to the side.
4.1.5
Determining the number of required roof
brackets
1.
Ask the local building authority for the regional max-
imum snow load s
k
.
Conditions
: Maximum snow load:
≤
3 kN/m
²
▶
Install 4 roof brackets per collector.
Conditions
: Maximum snow load: 3 … 4.5 kN/m
²
▶
Install 6 roof brackets per collector.
Conditions
: Maximum snow load: > 4.5 kN/m
²
▶
Compile statistics for the individual case.
▶
Ensure that the maximum permissible snow load per
collector is 5.4 kN/m
²
.
Note
The maximum permissible load per roof
bracket type S/type P is: F
max
= 1.875 kN.
2.
If you are using extension sets, ensure that the roof
bracket is positioned centrally with equal clearances.
4.1.6
Defining the edge clearances of the roof
brackets
Maximum lift points caused by wind loads can occur at
the cut-away edges of wall and roof areas (e.g. verge and
eaves). These maximum lift points result in high loads on the
collectors and installation systems.
Areas in which lift points occur are called edge areas. Corner
areas are zones in which edge areas overlap and especially
high pull forces occur.
Edge and corner areas must not be used as installation
areas.
