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The ducting from this fan to the outside of the building has a strong effect on the air flow, noise and energy use of the fan. Use the
shortest, straightest duct routing possible for best performance, and avoid installing the fan with smaller ducts than recommended.
Insulation around the ducts can reduce energy loss and inhibit mold growth. Fans installed with existing ducts may not achieve their
rated air flow.
Installation
1. Before installation, you need to know:
Screw A
Screw B
Hangar bar (short)
Hangar Bar (long)
Note: The short hangar bar can only slide into Channel A
Mount using mounting holes and hanger bar (Option 1)
Remove the housing and drive the screws part way into the joists at the marked
locations (Figure 3). Slide one hanger bar into the channel on the housing and adjust
as needed to fit between framing. Hold housing in place so that the housing
contacts the bottom of the joist, Screw housing to joist through the hole A and hole
B. Fasten the hanger bar onto the other side of joist through the hole (refer to
Figure 4). Screw hanger bar to housing with screw A.
Distance A
13 3/4" to 15 15/16" (350mm-405mm)
19 11/16" to 21 7/8" (500mm-555mm)
13 3/8" to 19 11/16" (340mm-500mm)
Mount using mounting holes and hanger bar (Option 2)
Disconnect plug connector from receptacle and remove adaptor from housing
before starting installation. Slide one hanger bar into the channel A on the housing
and adjust as needed to fit between framing (refer to Figure 5). Insert housing
between joists, making sure the adapter claws are properly inserted into the
housing slots. Secure the housing to adaptor by using screw. Screw housing to
joist through the hole A and hole B (refer to Figure 6). Screw hanger bar to
housing with screw A.
Distance A
13 3/4" to 15 15/16" (350mm-405mm)
19 11/16" to 21 7/8" (500mm-555mm)
Mount with hangar bars only
Slide hanger bars into housing and adjust as needed to fit between framing. Extend
the hanger bars to the width of the framing. Position the ventilator with the housing
tabs wrapped around the bottom edge of the framing, holding the ventilator in
place. Secure hanger bars to framing using one screw on each end of hanger bar.
(refer to Figure 7). Screw hanger bar to housing with screw A.
Distance A
14" to 23 1/2" (356mm-597mm)
19 11/16" to 23 1/2" (500mm-597mm)
fantech
ST4.2*13mm
ST4.2*25mm
7 1/2 in (190mm)
13 3/8 in (340mm)
Hanger Bar
Channel
Hanger bar (short)
Channel A (fig. 3)
Hanger bar (long)
Channel A (fig. 3)
Hanger bar (long)
Channel B (fig. 4)
Hanger Bar
Hanger bar (short)
Hanger bar (long)
Hanger Bar
Hanger bar (short)
Hanger bar (long)
Distance A
Hole B
Hole A
JOIST
Tap
Figure 1
Figure 2
Screw B
Screw B
Channel A
Figure 3
Figure 4
Hanger Bar A
Screw B
Screw B
Screw B
Figure 5
Figure 6
Hanger bar A
Screw A
Screw B
Figure 7
Channel B
Hole B
Hole A
Channel A
Screw B
Screw B
Channel B
Screw
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