Wilo Stratos 1.25x3-20 Notice De Montage Et De Mise En Service page 19

DANGER! Electrical shock hazard!
If the pump is operated by means of a generator, a dangerous voltage is
created at the motor terminals after the control module is removed. The
motor terminals are designed as VDE-approved bushings, so that there is no
danger if simply touched with the finger. However, there would be a danger
if a pointed object (nail, screwdriver, wire) were poked into one of the
bushings.
7.1.1 Removing/installing the motor head unit
If the control module is to be moved into a different position, the motor does
not need to be completely removed from the pump housing. The motor can be
turned to the desired position in the pump housing.
CAUTION! Possible damage of the pump!
Be careful not to damage the O-ring situated between the motor head and
the pump housing. The O-ring must lie untwisted in the bevel of the end
shield pointing to the impeller.
CAUTION! Possible damage of the pump!
The impeller is permemtantly attached to the shaft, the end shield and the
rotor. As the rotor has extremely strong rare earth magnets, if the rotor is
removed from the rotor can, it has a considerable potential for danger e.g.
by suddenly attracting objects made from iron/steel, influencing electrical
equipment (risk to people with pacemakers), destroying magnetic cards,
etc.
To remove the motor, (4x) M6 or (4x) M10 hexagon socket screws must be
loosened. These screws can be reached with the following tools (fig. 3):
• 90° offset socket-head screwdriver
• spherical head socket-head screwdriver
• ¼" reversing ratchet with suitable bit
7.1.2 Insulating the pump in refrigerating/air-conditioning systems
The Wilo-Stratos series is suitable for use in refrigeration and air-conditioning
systems with flow medium temperatures down to 14°F (-10°C).
Use the diffusion-proof Wilo-ClimaForm low-temperature insulation shell in
cooling and air-conditioning systems.
CAUTION! Possible damage of the pump!
If the diffusion-proof insulation is created by the customer, the pump
housing may be insulated towards the motor only up to the motorflange, so
that the condensate drain openings remain open and allow the condensate
accumulating in the motor to flow out without obstruction (fig. 4).
Installation and operating instructions Wilo-Stratos /-D/-Z
English
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