9.  Sound levels 
Notes: 
• Data is valid at free field condition 
• Data is valid at nominal operating condition 
• Sound level will vary depending on a range of 
factors  such  as  the  construction  (acoustic 
absorption  coefficient)  of  particular  room  in 
which the equipment is installed 
•  Sound  level  can  be  increased  in  static 
pressure mode or used air guide.