Installing The Water Connections - Vaillant aroSTOR VWL BM 270/5 Installation And Maintenance Instructions Manual

5 Installation
5.1.4 Installing without a pipework system
1
1 External area
2 Internal area (heated or
not heated)
The air is drawn into and conducted away from the same
room .
With this type of installation, the room is used as an energy
collector. The room is cooled by the hot and cold air that the
product emits.
Caution.
Risk of material damage caused by frost
inside the house
Even at outdoor temperatures above 0 °C,
there is a risk of frost in the installation room.
▶
Use suitable heat insulation to protect
pipelines and other elements in the install-
ation room that are sensitive to cold.
To prevent the cold air emitted by the product from re-enter-
ing it, maintain the minimum clearance between the upper
side of the product and the ceiling.
–
Area of the installation room: 20 m²
– Minimum room height: ≥ 2.20 m
14
2
3
3 Ventilation
5.2

Installing the water connections

5.2.1 Hydraulics installation
▶
Use flat seals.
– Torque: ≤ 20 Nm
5.2.2 Connecting the domestic hot water cylinder
5
4
3
2
1
1. Use only dielectric connections (to be provided on-site)
to connect the water-carrying lines in order to ensure
galvanic partitioning.
Note
The length of the lines must be as short as
possible. The lines must have correct heat
insulation in order to prevent heat losses and
condensation.
2. Connect the cold water pipe (1).
3. Connect the domestic hot water flow to (4).
4. Carry out a leak-tightness check on all connections.
5.2.3 Connecting the hot water secondary
circulation line
Validity: aroSTOR VWL BM 200/5
OR aroSTOR VWL BM 270/5
1. To limit the heat losses, add heat insulation to the hy-
draulic connections, the plugs on the cylinder outlet and
all visible lines.
2. Use a circulation pump with a flow rate between 0.5 and
4 l/min.
3. Program the circulation pump and select an extremely
short time period for this.
Installation and maintenance instructions aroSTOR 0020290840_00