Joist mounting install, Ventilation fan installation guide, Step – Delta VFB25AD User Manual
Page 6
Suspension
Bracket I
Suspension
Bracket I
Suspension
Bracket III
Suspension
Bracket II
Suspension
Bracket II
Body
Type I -12 inchs between joists
Type II -16 inchs between joists
Joist
Joist
Joist
Joist
Body
Fig. D-01
Fig. E-01
Fig. E-02
Fig. D-02
Fig. C-02
Fig. C-01
Joist
A
Outside
Gradient
1°~2°
Inspection Hole
Grill
Body
Tape
Duct
Inside
Ceiling
Grill
Spring
Slots
Ground
Neutral
Live
On
Switch Box
(Purchase separately)
Ventilation Fan
Black
Spacing A on Center Joists
12 inches
16 inches
19.2 inches
24 inches
Insert Suspension bracket
Refer to Fig. D-01, E-01
Refer to Fig. D-02, E-02
Refer to Fig. D-03, E-03
Refer to Fig. D-04, E-04
White
Green
Suspension
Bracket III
Suspension
Bracket I
Suspension
Bracket II
Body
Suspension
Bracket III
Suspension
Bracket I
Suspension
Bracket II
Body
Fig. D-03
Fig. E-03
Fig. E-04
Fig. D-04
Joist
Joist
Joist
Joist
Type IV - 24 inches between joists
Type III - 19.2 inches between joists
16(406.4)
19.2(487.7)
24(609.6)
12(304.8)
Inches (mm)
Inches (mm)
Joist Mounting Install
Ventilation Fan Installation Guide
Choose the installation spacing between two joists.
1
Step
Connect wires as shown in wiring diagram below.
4
Step
Use bracket to mount fan body between the joists.
2
Step
Insert the mounting springs into the slots and
mount the grille to the body.
5
Step
Insert the duct into the duct connector.
3
Step
6
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