Air King AK300LS - Manuel (Page 2)

1c. Installation on 24" Centers Joists or Larger than 2x6 Joists on 16"
Centers: Install two - 2x4 headers (not included) between the joists
(Figure 4). Install the mounting brackets through the top set of slots
on the fan housing and secure in place with the four included #10-
32 nuts as shown. Position the fan housing between the headers
and secure the mounting brackets with screws or nails (not included)
to the header. Adjust the height of the housing so that it is flush
with the finished ceiling by loosening the mounting bracket nuts
and sliding the housing up or down on the bracket. Fully tighten all
four nuts to secure the housing in place (Figure 5).
SECTION 3
Ducting
CAUTION: ALL DUCTING MUST COMPLY WITH LOCAL AND
NATIONAL BUILDING CODES.
1. Connect the ducting to the fan’s duct collar (Figure 6). Secure in
place using tape or screw clamp. Always duct the fan to the outside
through a wall or roof cap.
INSTALLATION INSTRUCTIONS
CAUTION: MAKE SURE POWER IS SWITCHED OFF AT SERVICE
PANEL BEFORE STARTING INSTALLATION.
SECTION 1
Preparing the Exhaust Fan
1. Unpack fan from the carton and confirm that all pieces are present.
In addition to the exhaust fan you should have:
1 - Grill
1 - Damper Assembly (attached)
2 - Mounting Brackets
1 - Mounting Flange
4 - 10-32 Nuts
1 - Instruction/Safety Sheet
2. Choose the location for your fan. To ensure the best air and sound
performance, it is recommended that the length of ducting and the
number of elbows be kept to a minimum, and that insulated hard
ducting be used. Larger duct sizes will
reduce noise and airflow restrictions.
This fan will require at least 10" of
clearance in the ceiling or wall, and will
mount through drywall up to 3/4" thick.
3. Select the most convenient electrical
knockout and remove using a straight-
blade screw driver (Figure 1).
SECTION 2
Mounting the Housing
1a. Installation on 2x4 Joists on 16" Centers: Install the mounting
brackets through the second set of slots on the fan housing and
secure in place with the four included #10-32 nuts as shown. Center
the fan housing between the joists and secure the mounting
brackets with screws or nails (not included) to the joist. Adjust the
height of the housing so that it is flush with the finished ceiling by
loosening the mounting bracket nuts and sliding the housing up or
down on the bracket. Full tighten all four nuts to secure the housing
in place (Figure 2).
1b. Installation on 2x6 Joists on 16" Centers: Install the mounting
brackets through the second set of slots on the fan housing and
secure in place with the four included #10-32 nuts as shown. Center
the fan housing between the joists and secure the mounting
brackets with screws or nails (not included) to the joist. Adjust the
height of the housing so that it is flush with the finished ceiling by
loosening the mounting bracket nuts and sliding the housing up or
down on the bracket. Fully tighten all four nuts to secure the
housing in place (Figure 3).
Figure 1
www.airkinglimited.com 210572051 Rev. A 8-05 2 of 12
Figure 3
Joist
Housing
Bracket
Nut
Figure 2
Joist
Housing
Bracket
Nut
Figure 5
Header
Housing
Bracket
Nut
Figure 4
Joist
2 x 4 Header
Joist
2 x 4 Header
Ceiling