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DIR
VARIZON
Displacement unit with adjustable spread pattern
®
Quick facts
►
Adjustable spread pattern and affected area
►
Suitable for all types of rooms
►
Simple to install
►
Cleanable
►
Concealed fixing
►
Available in alternative colours
►
Included in the MagiCAD and CadVent databases
Quick guide
A I R F L O W - S O U N D L E V E L
DIR
Size
25 dB(A)
400
34
500
47
600
60
900
110
The sound data applies to the displacement unit together
with the connection duct.
l/s
30 dB(A)
35 dB(A)
40
48
57
66
71
85
130
148
1
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Table of Contents
Summary of Contents for Swegons VARIZON DIR 400
- Page 1 VARIZON Displacement unit with adjustable spread pattern ® Quick facts Quick guide ► Adjustable spread pattern and affected area A I R F L O W - S O U N D L E V E L ► Suitable for all types of rooms ►...
- Page 2 Technical description Design The DIR is a complete, fl at displacement unit for mount- ing recessed into studded walls. The unit consists of a two parts: the plenum box and the perforated front plate. The plenum box is equipped with a air volume measuring point, or mounting frame and a rectangular connection spigot.
- Page 3 Figure 1. Installation. Figure 2. Commissioning. Maintenance. Sizing • Sound level dB(A) applies to rooms of 10 m equivalent absorption area. • Recommended maximum under temperature 6 K. • To calculate the width of the spread pattern, air veloci- ties in the zone of occupation or sound levels in rooms with other dimensions, please refer to our calculation programmes ProAir web, which is available for down- load at www.swegon.com.
- Page 4 Engineering graphs Air fl ow – Pressure drop – Sound level – Affected area • The size of the affected area is related to the isovel limit of 0.2 m/s at t 3 K and 6 K. t in this case signifi es the difference between the room air temperature measured at 1.2 m above the fl oor and the supply air temperature, it is not the difference between the exhaust air and the...
- Page 5 Dimensions and weights Size ØH Weight, kg Weight, kg Size Diffuser Duct 80-102 254 252 54 80-102 304 302 54 80-102 354 352 54 100-122 504 502 74 Figure 4. Flush mounting measurements for the DIR. Figure 5. DIR and DIRT 4. 1.
- Page 6 Order key Specification example Product Flush-mounted displacement unit -aaa SD XX Swegons VARIZON rectangular low velocity terminal for ® Version flush mounting in walls, of type DIR, with the following Size: 400, 500, 600, 900 functions: • Adjustable spread pattern and affected area Accessories •...
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