Siemens FDA221

3.1.1 Mounting on the ceiling
The air below the ceiling is usually aspirated through a pipe system.
25…100 mm
1
2
A
S
D
Fig. 4: Mounting on the ceiling
1 Fastening with plastic clamps
2 Fastening onto existing components
3.1.2 Mounting in a false floor or a duct
The air in the false floor or the duct is usually aspirated through a pipe system.
1
2
3
A
S
D
Fig. 5: Mounting in a false floor or a duct
1 Fastening onto existing components
2 Upright stand pipes
3 Plastic clamps on mounts
System description
Air aspiration
3
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