Air King AK200LS, AK150LS, AK300LS manual Section, Installation Instructions, 2 x 4 Header

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 Figure 1

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).

	Bracket
	Housing
	Nut
Figure 2	Joist

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).

	Bracket
	Housing
	Nut
Figure 3	Joist

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).

Joist

2 x 4 Header

2 x 4 Header

Ceiling

Joist

Figure 4

	Bracket
	Housing
	Nut
Figure 5	Header

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.

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