10
Operation and maintenance manual for
Hydrotech Drumfilter HDF501-series
4..GENERAL.INSTALLATION.INSTRUCTIONS
The following requirements must be met before installation can begin
The electrical specifications of the equipment corresponds to the available
line current specifications
The equipment is undamaged (no damages from transport or storage)
4.1.Installation.site
4.1.1.Outdoor.installation
For outdoor installations it is necessary to protect the filter panels from direct
sunlight as the heat and UV radiation may otherwise destroy the filter panels.
Protect the filter from freezing. At water temperatures above +5 °C and air
temperatures warmer than -10 °C, the lids of the filter is enough for protection.
At lower water and air temperatures, the filter should be installed indoors.
4.1.2.Foundation
The filter should be fitted on an even
surface with appropriate torsional and
structural strength.
The filter must be properly levelled in
both directions (see figure 4.1).
600 mm wide walkways should be
fitted around the filter in order to
provide easy access to the filter for
service work.
4.2.Emergency.by-pass
In some applications an external by-
pass must be arranged in case of e.g.
a power failure to avoid a too high
differential pressure across the filter
cloth.
4.3.Electrical.connection
Electrical connection must be performed according to local regulations. Check
the settings of the motor protectors against amperage readings on the motors
(see Appendix A & D).
4.4.Equipotential.earth.bonding
The Hydrotech Drumfilter and its associated equipment should be protected
using a suitable Equipotential Earth Bonding system. This is very important to
avoid galvanic corrosion. Typically use a cable with an area of 10-16 mm
2
. The
cable should be attached to the same electrical potential as the drive system.
WARNING!
All electrical works should be installed by a qualified and competent
electrically trained person.
Figure 4.1 Filter installation
!
