Installing The Air Supply And Air Exhaust - Vaillant aroSTOR VWL BM 270/5 Installation And Maintenance Instructions Manual

5 Installation
▶
Ensure that there is no mechanical stress
when installing the connection pipes.
Caution.
Risk of damage in the pipelines due to
residue.
Residue from pipelines, such as welding
beads, scale, hemp, putty, rust and coarse
dirt, may be deposited in the product and
cause malfunctions.
▶
Flush the pipelines thoroughly before con-
necting to the product in order to remove
any possible residue.
5.1

Installing the air supply and air exhaust

5.1.1 Selecting air duct systems
Validity: Vaillant
Caution.
Risk of material damage caused by incor-
rect installation.
▶
Do not connect the product to extractor
hoods.
1. Use only commercially available, insulated air ducts
with suitable heat insulation, to prevent energy loss and
condensation from forming on the air ducts.
Maximum length of the air pipes L1 + L2 (L1 = air intake
pipe; L2 = air outlet pipe)
Standard value
Condition: Flexible pipes
Condition: Fixed pipes
Note
In an installation with rigid pipes, elbows, at-
tachments and mesh create additional pres-
sure losses in the air duct system that may
correspond to five metres of straight pipe
length per element. Make sure that the max-
imum permitted lengths are not exceeded
with the elements used.
2. Protection devices must be installed at the openings
of the air ducts to prevent water or foreign bodies from
penetrating the pipelines (protective grille for vertical
walls, roof terminals).
3. Always protect the product against modification or inter-
vention in order to prevent water or foreign substances
12
4.
5.1.2
1
L1 + L2
10 m
1
Note
In addition to the total
The air inlet and outlet are located in the external area.
length, two 90° el-
bows can be added.
20 m
Note
In addition to the total
length, two 90° el-
bows can be added.
Installation and maintenance instructions aroSTOR 0020290840_00
from penetrating as this may damage the pipes or other
components.
Use a circulation pump with a throughput between 0.5
and 4 l/min.
Installing the complete pipe system
External area
2
2 Internal area (heated or
not heated)