Outdoor Installation - Bühler technologies P2.2 Atex Notice De Montage

P2.x ATEX
CAUTION
Contusion hazard
Contusion of the fingers
Don't have your fingers caught between eccenter and slide.
4 Installation and connection
Check the equipment for damage before installation. Among
other things, this could be a damaged housing, supply cables,
etc.. Never use equipment with obvious damage.
CAUTION
Use appropriate tools
According to DIN EN 1127-1, the operator is responsible to se-
lect and use appropriate tools.
4.1 Requirements to the installation site
CAUTION
Equipment damage
Protect the equipment, particularly gas connections and gas
lines, from dust, falling objects, as well as external blows.
Lightning
On principle, the operator must meet all applicable standards
with respect to preventing damage to the equipment due to
lightning, which could result in equipment damage.
CAUTION
Avoid vibrations and resonances
The operator is responsible to mount the pump in a way that
vibrations and resonance do not cause premature failure res-
ulting in creating an effective ignition source.
The sample gas pump must be assembled and connected as
well as disassembled in a non-Ex zone with the unit cooled
down.
Never block the vent, and the exhaust air, including from ad-
jacent units, must not be immediately suctioned in.
When installing without Bühler mounting bracket, be sure
the motor is far enough from the back panel (at least 40 mm).
The sample gas pumps are rated for ambient temperatures
from -20 °C to +50 °C (-4 °F to 122 °F) as well as altitudes
<= 1000 m. They're available in various styles and the specific
technical data may vary. Therefore always note all device-spe-
cific data on the pump and motor type plate and their specific
limits - see Technical Data.

4.1.1 Outdoor installation

The sample gas pumps were not specifically designed for out-
door setup. The operating and environmental conditions are
crucial for the required types of protection and any additional
measures required, such as:
• adequate protection from the weather
• Adjusting the maintenance intervals (e.g. cleaning and re-
placing wear parts)
Use suitable measures and regular inspections to prevent
damage to the equipment from e.g.:
10 Bühler Technologies GmbH
• Corrosion
• Sunlight (temperature peaks and damage from
UV rays)
• Moisture from condensation (e.g. due to rapid temperat-
ure changes or downtimes)
• Icing
• Insects and microbes
• other animals, e.g. martens, etc.
Please remember that all technical operating parameters of
the equipment must also be met with outdoor installation.
Specifically:
• Maximum or minimum operating temperatures
• Degree of protection
4.2 Installation
CAUTION
Damage to the device
Protect the device, especially the gas inlets and tubes, against
dust, falling parts and external impact.
P2.2 Atex/P2.72 Atex
When installing the P2.2 Atex/P2.72 Atex on mounting plates,
use the included mounting bracket and only the included rub-
ber/metal bumpers. Operation without rubber/metal bump-
ers is prohibited. These must also be used when installing the
pump on an existing substructure. For the hole pattern in the
mounting bracket and the motor foot, please refer to the
Technical Data at the end of the operating and installation in-
structions.
P2.4 Atex/P2.74 Atex
When installing the P2.4 Atex/P2.74 Atex sample gas pump,
please note the assembly drawing 42/025-Z02-02-2. Before be-
ginning the installation, verify the sample gas pump is com-
plete. You will also require 6 x suitable length M6 bolts and
nuts for installation.
The pump head on all pump types can only be aligned turned
by 0° or 180°.
4.3 Special condition moist sample gas
Applications where the sample gas is still moist may result in
condensate forming in line and the pump body. In these
events the pump head must be suspended (pump body facing
down).
If the pump was not ordered this way, it can easily be conver-
ted on site.
Install the line between the gas output and condensate drain
with a grade so the condensate can drain and does not collect
inside the pump or the lines.
4.4 Connecting the gas tubes
The pumps are delivered with customized gas connections.
Please compare the part-no. on the type plate with the part-
no. explained in chapter "Introduction".
Avoid mixed installations, that is connecting metal tubes to
plastic bodies. If this is unavoidable for sporadic applications,
screw the metal fitting with utmost care and without any use
of force to the PTFE pump body.
BX420002 ◦ 04/2021