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Delta VFB25AD Benutzerhandbuch

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  3.  Type II – 16 inches between joists
 3-1.  Insert the suspension bracket into the bracket cover of adaptor 
side and the back of the fan body.
 3-2.  Insert the fan between joists. Make sure the fan body is level  
and perpendicular with the joist.
 3-3.   Ensure the distance between ceiling and fan body for the  
thickness of grille.
 3-4. Secure the suspension bracket to joists by using screw.
 3-5. Secure the suspension bracket to fan body by using screw.
 3-6. Follow step 6 to 9 of installation to complete the installation work.
4. Type III – 19.2 inches between joists
 4-1. Insert the suspension bracket into the bracket cover of adaptor 
side and the back of the fan body.
 4-2. Insert the fan between joists. Make sure the fan body is level  
and perpendicular with the joist.
 4-3. Ensure the distance between ceiling and fan body for the  
thickness of grille.
 4-4. Secure the suspension bracket to joists by using screw.
 4-5. Secure the suspension bracket to fan body by using screw.
 4-6. Follow step 6 to 9 of installation to complete the installation work.
Outside
Gradient
1°~2°
Inspection Hole
Grill
Body
Tape
Duct
Inside
Ceiling
3
  5.  Type IV – 24 inches between joists
 5-1.   Insert the suspension bracket into the bracket cover of adaptor 
side and the back of the fan body.
 5-2.  Insert the fan between joists. Make sure the fan body is level  
and perpendicular with the joist.
 5-3.  Ensure the distance between ceiling and fan body for the  
thickness of grille.
 5-4. Secure the suspension bracket to joists by using screw.
 5-5. Secure the suspension bracket to fan body by using screw.
 5-6. Follow step 6 to 9 of installation to complete the installation work.
6. Duct Connection
 6-1.  Insert the duct into the duct connector and tape all ductworks 
connection to make them secure and air tight.
 6-2. Install the duct with a gradient 1°~2° to the outside.
Suspension
Bracket I
Suspension
Bracket III
Suspension
Bracket II
Body
Joist 
Joist
Fig. E-02
Fig. D-02
Suspension
Bracket III
Suspension
Bracket I
Suspension
Bracket II
Body
Joist
Joist
Fig. E-04
Fig. D-04
Suspension
Bracket III
Suspension
Bracket I
Suspension
Bracket II
Body
Joist
Joist
Fig. D-03
Fig. E-03