Swegon EXFa EXFT1 User manual

EXFa

Installation - Commissioning - Maintenance 20220217

Accessories

Mounting frame, EXFT1

Mounting frame for insertion mounting.

Mounting frame EXFT5

Mounting frame for fit-on mounting.

Assembly

Size of opening, see the dimensions of the connecting

duct. Install the mounting frame by inserting its nipple

into the connecting duct. Press the spring fasteners of the

extract air valve into the grooves of the mounting frame

as shown in Figure 1.

Commissioning

Rotate the inner cone clockwise (-) to increase the

pressure drop and counterclockwise (+) to decrease it.

Lock the position of the cone by tightening the lock nut

on the rear side of the extract air valve.

The extract air valve can be commissioned by measuring

the pressure or the air flow. For pressure measurement,

use a so-called "measuring hook" (probe) and for air flow

measurement use a commonly marketed airflow meter.

See Figures 2 and 3.

The rated coefficient of performance (K-factor) is specified

on the identification label of the product and in the

relevant commissioning instructions at www.swegon.com.

Maintenance

The extract air valve can be cleaned, if necessary, using

lukewarm water with dishwashing detergent added or by

vacuum cleaning using a brush nozzle. The duct system

can be reached for cleaning by withdrawing the extract

air valve out of its mounting frame.

Figure 1. Installation.

Figure 3. Commissioning.

kpq⋅=

( )2

EXF 125

Tomelilla

Sweden

-10 -5 0 +5 +10

k = 2,2 3,0 3,8 4,9 5,6

q= measured flow l/s

p= current pressure reading (Pa)

k= commissioning factor

k-factor

Figure 2. Commissioning.

EXF

2Swegon reserves the right to alter specications. 20220217

Figure 4. Extract air valve, EXF.

Cone position

Size

100 125 160

-15 0.6 1.4 2.0

-10 1.1 2.2 3.1

-5 1.7 3.0 4.0

02.2 3.8 4.9

52.8 4.9 5.9

10 3.3 5.6 6.8

15 4.5 6.1 7. 8

*) Measure with a test probe

Figure 5. Mounting frame, EXFT1/EXFT5.

A44 46

EXT. D1

INT. D2

EXFT1 EXFT5

K-factor *) EXFDimensions and weights

EXF

Size B C ØD EWeight, g

100 41 9132 69 162

125 50 10 162 72 237

160 55 10 192 80 334

Mounting frame, EXFT1, for insertion mounting/

EXFT5, for fit-on mounting

Size ØA ØD1 ØD2 Size of

opening*

Weight, g

EXFT1 EXFT5

100 123 99 100 110 78 72

125 149 124 125 135 97 92

160 185 159 160 170 123 118

*Tolerance +5 /-0 mm

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