P2.3C, P2.4C
Before restarting the pump after long-term storage or an ex-
tended standstill period, the insulation resistance of the wind-
ing phase-to-phase and phase-to-ground must be measured.
Moist windings could cause leakage current and flash-over.
The insulation resistance of the stator windings must be at
least 1.5 MΩ, measured at a winding temperature of 20 °C
(68 °F). For lower values, drying the winding is required.
The motor shaft should be rotated in regular intervals to en-
sure sufficient lubrication of the bearings in long term.
To do this, unscrew the three cross-head screws of the housing
cover and remove the cover (see fig. 1, fig. 2). The crankshaft is
now visible.
CAUTION
Contusion hazard
Contusion of the fingers
Don't have your fingers caught between eccenter and slide.
Fig. 1
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 for the set-up location
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.
10
Bühler Technologies GmbH
All manuals and user guides at all-guides.com
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 ventilation must be unobstructed and the exhaust air –
and from the adjacent units as well – must not be directly re-
siphoned.
The motor is rated for ambient temperatures between -20°C
and +50°C and for installation altitudes ≤ 1000 m above sea
level.
If installed without the mounting bracket, there must be suf-
ficient spacing between the motor and the rear wall. The fur-
ther environmental parameters for the set-up location can be
found in the data sheet at the end of the operating and in-
stallation instructions.
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:
Fig. 2
Use suitable measures and regular inspections to prevent
damage to the equipment from e.g.:
Please remember that all technical operating parameters of
the equipment must also be met with outdoor installation.
Specifically:
CAUTION
d = air inlet
• adequate protection from the weather
• Adjusting the maintenance intervals (e.g. cleaning and re-
placing wear parts)
• 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.
• Maximum or minimum operating temperatures
• Degree of protection
BX420022 ◦ 08/2018