STEP BY STEP INSTALLATION INSTRUCTIONS
The ThruWall™ fan can be placed at any height on the wall. If you want to move predominantly warm air the fan should be placed higher on the wall to
capture the warmer air. For colder airflow place the fan lower on the wall. Please keep in mind the 10' power cord. Extension cords are not recommended for
use with this fan.
Step1. Place the metal sleeve (without the grille attached) against the wall with the flanged edge facing you. Trace the pipe on the outside with a pencil to
mark the cutout. (Refer to picture 1)
Step 2. Cut out the circular opening with a small drywall saw. Cut inside the pencil line. Take care not to damage the edge of the drywall since you will be
installing drywall anchors close to the hole to mount the grille.
(Refer to picture 2)
Step 3. Project the edge of the cutout onto the inside of the other wall board in three places, approximately 120° apart. Use a small square or a piece of
cardboard that has an exact 90° angle to mark the cutout points on the inside of the other wall. The two circular openings must be accurately aligned. (Refer to
picture 3)
Step 4. Use a small sharp pin or very small drill bit (1/32" or smaller) to punch or drill these three marks to the outside of the other wall. (Refer to picture 4)
Step 5. Place the other sleeve, with grille attached, against the outside of the wall and center its location using the three markers that you have made, then
trace the outside of the sleeve with a pencil. Cut the circular opening with a small drywall saw. Cut inside the pencil line. Take care not to damage the edge of
the drywall. You will be installing drywall anchors close to the hole to mount the grille. (Refer to picture 5)
Step 6. Insert the metal sleeve with grille into the cutout opening (fan output side) and snug the flange up against the wall material, making sure that power
cord is hanging straight down. Use a level to square the housing.
Step 7. Insert the other metal sleeve into the cutout opening (fan suction side) and snug the flange up against the wall material.
Step 8. Position the unattached plastic grille over the metal sleeve that was just inserted so that the Suncourt® logo is at the bottom. Using a level make sure
that the grille is nicely square with the floor. Mark the placement for the 4 wall anchors.
Step 9. Remove metal sleeve with grille attached and drill the holes on both sides of the wall for the anchors with a sharp 3/16" drill bit. Install wall anchors and
after re-inserting metal sleeve with grille attached, screw the grilles down snugly. DO NOT OVERTIGHTEN. (Refer to picture 6)
Pic. 1
CLEANING AND MAINTENANCE
Before cleaning the TW408 ThruWall™ fan unplug or switch power off at the appropriate breaker. Dust may be removed from the exterior surfaces using a soft
cloth, the round brush attachment of your vacuum cleaner, or using a cloth that has been lightly moistened with water and a mild, non-abrasive detergent.
PERFORMANCE
Speed Setting
CFM
75
*Low
90
9.0
10.5
Med - Low
105
11.5
*Med - High
115
13.0
High
130
1. Find the square footage on the chart that is closest to the room in which air is to be delivered by the fan.
2. Select your airflow setting based on the chart. For older homes, consider a setting that results in a higher ACH.
3. Areas marked w/
: fan is oversized for this area at this speed setting. Lower speed setting.
4. Areas marked w/
: a single fan may be undersized for this area at this speed setting, particularly older homes
with inadequate insulation.
(*) The TW408 is shipped from the factory with one large adaptor plate on the oulet side and one small
adaptor plate on the inlet side. This corresponds to the "Low" and "Med-High" setting depending on the
speed switch. In certain circumstances, moving the large adaptor plate to the inlet side can help reduce
noise output.
Pic. 2
Air changes per hour (ACH) based on room Sq Ft.
100
125
150
175
6.8
5.4
4.5
3.9
7.9
6.3
5.3
4.5
8.6
6.9
5.8
4.9
9.8
7.8
6.5
5.6
Pic.3
Pic. 4
200
225
250
275
3.4
3.0
2.7
2.5
3.9
3.5
3.2
2.9
4.3
3.8
3.5
3.1
4.9
4.3
3.9
3.5
Pic. 5
Pic. 6
