Section 5: Pre-Installation; Overview; Site Requirements And Preparation; Foundation And Service Access Requirements - Pentair PR AQUA ROTOFILTER Installation And Operation Manual

SECTION 5: PRE-INSTALLATION

5.1 Overview

Rotofilters require physical placement, electrical
connections, and plumbing upon arrival. It is
imperative to completely follow all preinstallation
and installation instructions sequentially to
maximize the efficiency and longevity of the unit.
A site will need to be established for the Rotofilter
and the backwash pump. These sites will need to
be prepared prior to installation.
A qualified electrician will need to be employed to
establish electrical connections for the backwash
system and the control panel. This manual does not
detail any electrical wiring of the backwash system
or control panel.
The site will require appropriate plumbing, and the
plumbing must have flow controls to limit potential
damage to the Rotofilter.

5.2 Site Requirements and Preparation

The Rotofilter requires a site that is prepared
prior to installation. The site requires a level,
solid concrete installation surface with adequate
service clearance.
Molded (RFM) and Ultraviolet (RFUV) models
require a solid, level concrete foundation. Section
5.3 of this chapter contains appropriate information.
Frame (RFF) models require a solid, level foundation
within a sump. Sumps should be composed of
solid concrete or fiberglass. Rotofilters may
need to be installed inside the sump or directly
above it. Section 5.4 of this chapter contains
appropriate information.
Minimum service access is required for regular
maintenance of the Rotofilter. Access is required on
the inlet, drive assembly, and spray bar assembly
sides of the unit.
Some maintenance procedures require the
Rotofilter to be dry. To perform these procedures,
Frame (RFF) models will need to have sumps that
can be drained or pumped. Molded (RFM) and
Ultraviolet (RFUV) models have integrated drains in
their enclosures.
Inlet and outlet water levels coming to and going
from the site must be controlled for the Rotofilter to
function properly, and to avoid damage to the unit.
The Rotofilter does not supply external controls for
these levels.
External water source access, such as access
to a municipal water supply, may be needed if
the backwash system will not use the unit's
filtered discharge.
Electrical sources are required for the backwash
system and control panel.
5.3 Foundation and
Service Access Requirements
Rotofilter Molded (RFM) and Ultraviolet (RFUV)
models must be placed on a solid, flat, and level
concrete foundation with adequate service access
to the inlet, drive assembly, and spray bar assembly
sides of the unit. The technical specification
documents detail which side of the Rotofilter is the
service access side (left or right, when facing the
inlet).
The location of the foundation should be
determined based on service access and stability.
Minimum recommended service access is 92
centimeters (36 inches).
PR Aqua Rotofilter™ Drum Filter Installation and Operation Manual
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