Installation - Wilo Stratos GIGA Betriebsanleitung

7.2

Installation

Preparation
Positioning/alignment
Installation and operating instructions Wilo-Stratos GIGA, GIGA-D, GIGA B
• Rotate the motor impeller unit by 90° or 180° in the desired direction
and install the pump in the reverse order.
• Fasten the differential pressure sensor holder with one of the screws
on the side opposite the electronic module (the position of the differ-
ential pressure sensor relative to the electronic module does not
change when doing this).
• Thoroughly wet the O-ring (Fig. 6, Item 1.14) before installation
(do not install the O-ring in a dry state).
NOTICE:
Be sure that the O-ring (Fig. 6, Item 1.14) is not installed in a twisted
position or pinched during installation.
• Before commissioning, fill the pump/system and apply system pres-
sure; check for leaks afterwards. If there is a leak at the O-ring, first air
will be emitted from the pump. This leakage can, for example, be
checked with a leakage spray at the gap between the pump housing
and the lantern as well as their screwed connections.
• In the event of continual leakage, use a new O-ring, if need be.
CAUTION! Risk of material damage!
Incorrect handling can result in damage.
• When turning the components, make sure that the pressure meas-
uring lines are not bent or kinked.
• When reinstalling the differential pressure sensor, bend the pressure
measuring lines evenly and as little as possible to put them into the
required position or into a suitable position. When doing this, do not
deform the areas at the clamp boltings.
• To facilitate the optimal positioning of the pressure measuring lines,
the differential pressure sensor can be separated from the holder,
rotated by 180° around the longitudinal axis and reinstalled.
NOTICE:
When turning the differential pressure sensor, make sure not to mix
up the pressure and suction sides on the differential pressure sensor.
For additional information about the differential pressure sensor, see
chapter 7.3 "Electrical connection" on page 90.
• Install only after completion of all welding and soldering work and
after the pipe system has been flushed, if required. Dirt can cause the
pump to fail.
• The pumps must be protected from the weather and installed in a
frost/dust-free, well-ventilated environment which is not potentially
explosive. The pump must not be installed outdoors.
• Install the pump in a place that is easy to access so that subsequent
inspections, maintenance (e.g. mechanical seal) or replacement is
easily possible. The flow of air to the heat sink of the electronic mod-
ule must not be limited.
• A hook or eyelet with the corresponding bearing capacity is to be
installed vertically above the pump (for the total weight of the pump:
see catalogue/data sheet), to which hoisting gear or similar aids can
be attached when conducting maintenance or repair work on the
pump.
(11-22kW)
English
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