Square Inline Mixed Flow Fans 7
STEP 2 - Filter Replacement and Cleaning
Follow filter replacement and or cleaning intervals
recommended by filter supplier.
FILTER SPACER(S)
FILTER(S)
1. Remove access door using 1/2 inch socket. It is only
necessary to remove one access door to replace
filters.
2. Remove filter spacers and dirty filters.
3. Install new filters in unit and replace filter spacers.
Ensure filters are installed in correct orientation for
proper airflow (marked on filters). Locate spacers
towards the outside of the unit to reduce any
unnecessary blockage in airflow.
4. Reinstall access door using 1/2 inch socket, torque
to 132 in∙lbs (11 ft·lbs). Do not over-tighten.
Outdoor Cover
The outdoor cover can be applied to any ducted
horizontal base mount outdoor application. UL/cUL 705
listed for outdoor use. The components for this kit are
shipped separate from the fan for field installation.
STEP 1 - Mount Unit to Structure
1. Place unit in desired location and mount to structure
(outdoor units are horizontal base mount only).
STEP 2 - Install Ductwork to Fan
1. Using holes on inlet and outlet, mount ductwork to
fan (hardware supplied by others).
STEP 3 - Install End Caps
IMPORTANT: Take care not to damage the foam tape
on these parts.
1. With the flanges away from the fan, mount one end
cap to the top of the inlet or outlet, use provided
self-tapping sheet metal screws and 5/16 inch
impact driver. Do not over-tighten.
2. Install remaining end cap on opposite side (inlet
or outlet) using provided self-tapping sheet metal
screws and 5/16 inch impact driver. Do not
over-tighten.
SIZE 7-24
SIZE 27-33
Plug unused
end cap hole
STEP 4 (Sizes 27-33 Only) - Install Side Mullions
1. Install left and right side mullions using (2) self-
tapping sheet metal screws per side.
SIZE 7-24
SIZE 27-33
Plug unused
end cap hole
TOP
BOTTOM
1
2
SIZE 7-16
SIZE 18-33
SIZE 7-16
SIZE 18-33
FOAM TAPE
BOTTOM
1
2
SIZE 7-16
SIZE 18-33
SIZE 7-16
SIZE 18-33
FOAM TAPE
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