PVSR-R volume flow controller_round - Pichler

VOLUME FLOW CONTROLLER IN ROUND VERSION PVSR-R PAGE 12
5 Installation
for use as a product and must first
be commissioned once it has been
installed and connected in the technical
ventilation system correctly and in line
with the regulations.
It can be installed in any position
in the control system with the axes
in a horizontal or vertical position.
The installation must be carried out
according to the flow direction given on
the nameplate.
For the correct functioning of the volume
flow controller, it is essential that the
minimum distances to other installed
components are observed during
installation. A minimum flow path with
the following length must be observed:
L = approx. 2 x diameter.
Minimum flow length
Distance
Offsets, arcs
Other fittings such as diverters,
T-pieces, reductions,
Components such as fire dampers, sound
absorbers
1 x D
2 x D
2 x D
D … Diameter of the volume flow controller
The combinations of multiple
components, such as shaped parts with
or without installed components, e.g.
fire dampers, sound absorbers, etc.
require greater minimum flow distances.
Particular care must be taken in the
case of deviations to the favourable
technical flow of the measurement
sensor (differential pressure sensor)
during installation.
The measurement sensor with the
measurement lines (differential pressure
sensor) must not be used on site for
transport purposes.
Measurement pipes must not be bent!
Check for correct seating during
installation!
For correct functioning, carry out
measures to exclude the risk of
contamination of the control components
(e.g. due to dust ingression). This can be
carried out by installing suitable filter
units in the air control system in front of
the volume flow controller.
During installation, check for
clear access for inspection and
cleaning purposes. The equipment
is maintenance-free in terms of its
mechanical components. According to
the local conditions, it can be necessary
to fit access openings in the air lines.
If larger volume flow deviations have
been determined, check the measuring
equipment, the connecting nipple and
the connection pipes and if necessary,
carefully clean the equipment dry.
When using the volume flow controller,
condensate can occur in the volume
flow controller measurement pipes due
to greater temperature differences. The
condensate can impair sensor function
or damage the sensor. Take precautions
to prevent the formation of condensate
using suitable measures on site, e.g. by
insulating the measurement pipes.
For different application situations, the
minimum flow paths are given in the
diagrams below.
PVSR-R
Flow path after bend
roller
Volume flow controller
PVSR-R
Flow path after fire damper
Volume flow controller
PVSR-R
Flow path after shaped part (fork, reduction, etc. ...)
Volume flow controller
PVSR-R
Flow path after sound absorber