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Operation & maintenance manual, Drum filter HDF 12/16/20/24 -series
5. GENERAL INSTALLATION INSTRUCTIONS
The following requirements must be fulfilled before installation can begin:
⊲ The electrical specifications for the equipment must be in agreement with the applicable spe-
cifications for the available power grid.
⊲ The equipment is free from damage (no damage incurred during transport or storage).
5.1 Installation site
5.1.1 Outdoor installation
For outdoor installation it is important to pro-
tect the filter elements against direct sunlight,
as heat and UV radiation can otherwise dama-
ge the filter elements. The filter must be pro-
tected against frost. The filter cover provides
sufficient protection at water temperatures
above +5 °C and air temperatures above -10 °C.
At lower water and air temperatures, filter in-
stallation should be indoors.
5.1.2 Foundations
⊲ The filter must be installed on a flat surface
with sufficient load bearing capacity.
⊲ The filter is to be bolted to the foundation.
⊲ The filter must be level in both directions
(see Figure 5.1).
⊲ 600 mm wide aisles should be placed
around the filter to permit easy access to the
filter during servicing.
⊲ On type 2 and 3 filters (without tanks), the space between the filter frame and concrete
structure must be covered to prevent access to moving parts and to prevent loose objects from
falling into the filter.
5.2 Emergency overflow
Filter type 1 (with tank) and filter type 3 (without tank, with inlet pipe) have integrated emergen-
cy overflow walls as standard. For a type 2 filter (without tank, open inlet), an inlet channel can
be used as an emergency overflow.
Figure 5.1 Filter installation
