Vaillant aroTHERM Series, Operating Instructions Manual

Page: 62 / 212

4 Set-up
60
Installation and maintenance instructions aroTHERM 0020257297_02
4.8 Ground installation
4.8.1 Creating a foundation
Applicability: Region with ground frost
800
200 540 200
1400
Ø100
270
300
100
AB
106
2
3
4
1
▶
Dig a hole in the ground. The recommended dimensions
can be found in the figure.
▶
Insert a downpipe (1) (diversion of the condensate).
▶
Add a layer of coarse rubble (3) (water-permeable, frost-
free foundation). Calculate the depth (A) in accordance
with local conditions.
–
Minimum depth: 900 mm
▶
Calculate the height (B) in accordance with local condi-
tions.
▶
Create two concrete strip foundations (4) . The recom-
mended dimensions can be found in the figure.
▶
Place a gravel bed (2) between and beside the strip
foundations (for condensate drainage).
4.8.2 Installing the product
Applicability: Small rubber feet
▶
Use the small rubber feet from the accessories. Use
the enclosed set-up instructions.
▶
Ensure that the product is aligned exactly horizontally.
Applicability: Large rubber feet
▶
Use the large rubber feet from the accessories. Use
the enclosed set-up instructions.
▶
Ensure that the product is aligned exactly horizontally.
Applicability: Raised base for snowy regions
▶
Use the raised base from the accessories. Use the
enclosed set-up instructions.
▶
Ensure that the product is aligned exactly horizontally.