Swegon SIRI a Guide

SIRI a
Installation – Commissioning – Maintenance 20150318
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".
≥2D
≥2D
≥2D
≥2D
≥2D
≥1D
Figure 1. Installation.
Figure 3. Installation alternatives and straight duct length
demands.
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.
Figur 2. Commissionng air flow.
kpq⋅=
p
q= flow reading l/s
p= current pressure reading (Pa)
k= commissioning factor
Ring spanner sizes
SIRI – Size Ring spanner size
80-160 8 mm
250-315 10 mm
400-630 15 mm
800 22 mm

SIRI
2Swegon reserves the right to alter specications. 20120911
L
AA
Ød
75 B
ØD
Figur 3. SIRI – dimensions.
K-factors (COP)
Possible damper
positions
K-factors for curent sizes dependent of damper position
80 100 125 160 200 250 315 400 500 630 800
13,9 610,2 21,3 35,4 53,3 85,3 119 218 325 540
22,1 3,8 6,7 15 24,7 39,3 65,3 95,3 176 272 446
31,2 2,6 4,7 11,1 18,3 30,4 52,1 78,5 148 233 379
40,7 1,8 3,3 8,5 14 24,2 42,9 65,7 124 202 325
50,3 1,2 2,3 6,6 10,8 19,4 35,6 55,6 107 177 282
60,7 1,5 5,1 8,4 15,7 29,8 47, 2 93,1 156 247
73,9 6,4 12,6 24,9 40,1 81,2 139 216
84,9 10,1 20,7 34 71 123 190
97,8 17 28,7 62 109 167
10 13,9 23,8 54 96,7 147
11 11,1 19,5 46,7 85,8 129
12 15,6 40,4 75,6 112
13 12,3 34,4 66,8 98,7
14 29,4 58,9 85,6
Dimensions and weight
SIRI
Size Dimensions (mm) Weight (Kg)
Ød ØD L A B
80 78 145 115 30 35 0,5
100 98 165 120 30 35 0,6
125 123 188 130 40 35 0,8
160 158 230 140 40 35 1,1
200 198 285 140 40 45 1,5
250 248 285 180 55 45 2,2
315 313 410 180 55 50 3,0
400 398 525 220 60 65 5,0
500 498 655 220 60 80 8,5
630 628 815 220 65 95 12,1
800 798 1020 280 85 107 24,5