Premier Tech Aqua
2/3
TLV-240
–
Installation and Operation Guide
Edition: 2017-08-09
When it is not possible to connect air vents to groups of four (4) biofilters, for feasibility, aeration or aesthetic reasons,
the biofilters must be connected to a forced ventilation system. Premier Tech Aqua suggests the TLV-240 Ventilation
System which consists of an electric fan with a load capacity of 273 CFM installed in a PTA polyethylene tank. The
TLV-240 Ventilation System can be installed on a group of up to 10
Ecoflo
®
Biofilters.
The TLV-240 Ventilation System includes a ventilator, flexible reducing joints, external connections and the access
lid.
The ventilation ducts running between the Ecoflo
®
Biofilters must be at least 100 mm
(4") in diameter and the
main pipes downstream of the fans and surface vents must be at least
150 mm
(6"). For further information on the
TLV-240 Ventilation System for
Ecoflo
®
Biofilter clusters
, call PTA’s customer service.
3. Installation
The TLV-240 Ventilation System has a standard height of 1 016 mm (40") and a total diameter of 679 mm (26¾")
and may be installed with, if necessary, a PSR-060 extension of 150 mm (6") or a PSR-140 extension of 355 mm
(14"). The TLV-240 Ventilation System must be placed on an underlay of at least 300 mm (12") thick of fine, stable
and levelled granular material. The groundwater level must, at all times, be lower than the bottom of the tank.
An electric cable will be necessary to supply power to the ventilator. In order to ensure rapid access for maintenance,
the cable must be installed and buried in a PVC pipe. The electric wiring of the vent must be done as demonstrated
in the diagram below. Please note that it is not necessary to have the air vent running all day; the on/off switch
shown on the diagram below may be replaced by a 24-hour mechanical timer (external installation) or a digital timer
(internal installation). For timer adjustment, please refer to the "Operation" section of this guide.
In order to connect the TLV-240 polyethylene tank, insert the ventilation ducts in 100 mm (4") diameter PVC rings,
on each side of the tank. During backfill, make sure the access lid is installed properly to avoid any material from
entering the tank. It is important that the soil, under the pipes and around the outlet, be well compacted to prevent
breakage or bending of parts subsequent to soil movement. Furthermore, it is essential to have full access inside
the ventilation tank for annual maintenance (or when necessary). Consequently, the lid must be accessible at all
times.
