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SIRI a
Installation – Commissioning – Maintenance

Installation

The SIRI damper should be installed at a suitable distance
from obstruction sources. The SIRI damper must not be
strained by the weight from connecting ducts. This is
especially the case if it is connected to a vertical run of
ducts. In undisturbed measurement an accuracy of ±5% is
achieved. With installation options according to figure 2, an
accuracy of ±10% is achieved. Casing leakage is according
to ductwork leakage class C (EN 1751).

Commissioning

Maximum measurement deviation is ±10%, even when
the damper i positioned near a T-piece, transition piece
or duct bend. See figure 2, regarding straight duct length
demands. The pressure differential can be read and the
airflow can be determined from K-factors (COP) or com-
missioning diagrams by using the fixed measuring points.
A label containing k-factor table and commissioning dia-
grams is attached to one of the measuring points at deli-
very. When commissioning, set desired throttling using a
screwdriver or ring spanner. See table "Ring spanner sizes".
Figure 1. Installation.
p
=
q
k
p
Figur 2. Commissionng air flow.
q
= flow reading l/s
p
= current pressure reading (Pa)
k
= commissioning factor

Maintenance

The damper is maintenance-free. Whenever needed, clean
the damper by vacuum-cleaning with a brush nozzle.
When cleaning a duct, first note what position the damper
is set to before opening fully. Restore the setting of the
damper after cleaning.
≥ 2D
≥ 2D
≥ 2D
Figure 3. Installation alternatives and straight duct length
demands.
Ring spanner sizes
SIRI – Size
Ring spanner size
80-160
8 mm
250-315
10 mm
400-630
15 mm
800
22 mm
20150318
≥ 1D
≥ 2D
≥ 2D

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Summary of Contents for Swegon SIRI a

  • Page 1 SIRI a Installation – Commissioning – Maintenance 20150318 Installation Maintenance The SIRI damper should be installed at a suitable distance The damper is maintenance-free. Whenever needed, clean from obstruction sources. The SIRI damper must not be the damper by vacuum-cleaning with a brush nozzle.
  • Page 2 10,8 19,4 35,6 55,6 15,7 29,8 47,2 93,1 12,6 24,9 40,1 81,2 10,1 20,7 28,7 13,9 23,8 96,7 11,1 19,5 46,7 85,8 15,6 40,4 75,6 98,7 12,3 34,4 66,8 85,6 29,4 58,9 Swegon reserves the right to alter specifications. 20120911...

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