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Swegon CASA series Installation, Operation And Maintenance Instructions page 4

Regulation for constant duct pressure

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8. Connections
Supply duct over
pressure
+
Range
300 Pa
-
0-10 V
2
4
3
2
1
PTH
+
Range
300 Pa
-
0-10 V
3
4
3
2
1
PTH
1: CASA Smart air handling unit* | 2: PTH pressure sensor to measure the pressure in the supply air duct | 3: PTH pressure sensor to
measure the pressure in the extract air duct | 4: SEC Smart Extension Cable, connection cable*
*) Not included in the delivery.
NOTE! One pressure sensor with accessories is included in the delivery. If you would like to regulate both
ducts for constant duct pressure, you need to acquire two sensors.
Reference
3 x 0,5
GND
IO1 - IO5
24 V
Supply duct over
pressure
Reference
3 x 0,5
GND
IO1 - IO5
24 V
www.swegonhomesolutions.com
4
3 = IO 3
4 = IO 4
5 = IO 5
6 = DDC Out
7 = 5 V
8 = GND
24V / (5V)
IO2
1
IO1
GND
SEC

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