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Use a steel pipe of rectangular cross-section or a spiral-wound air duct for the collective air duct.
Use flexible air ducts for the connection duct.
The nominal diameter of air duct connections is 80 mm.
If the connection air duct is concealed within a brick wall it should be wrapped with self-adhesive PVC
tape to prevent mortar-induced corrosion.
The unit with a protection rating against access to hazardous
parts and water ingress IP55 is allowed to be installed in zone 2
according to the IEC 60364-7-701:2019.
Location of the backdraft damper in case of ceiling mounting.
3
1
2
3
16
2
3
1
2
2
2
1
R 600
2
1
2
1
2
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