Swegon SIRI a Guida

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

≥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⋅=

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

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

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