I. MOUNTING REMOTE FAN LOHE ON ROOF OR OUTSIDE WALL
Check to see if blower wheel turns freely. Do not replace top until installation is complete. The remote fan must be
installed such that the exhaust/discharge is 12” minimum from the ground level. However, there are some local codes
that do not permit this type of installation. Heavy snowfall will prevent the damper from opening due to snow
blockage. The installer should check local codes for outdoor wall installation of the fan.
1. Provide 14"x 14" square hole through roof or wall, or cut round hole for duct with a separate hole for electrical
conduit as shown in Figure 6.
2. For installation on a flat roof, or roofs with pitch less than 1 1/2" in 12 inches, install LOHE on curb so that the
discharge (low) end points away from prevailing winds.
3. Install the remote fan on the roof or wall (with discharge pointing down slope) according to the Standard Roofing
Procedures: (front discharge edge should be on the top of shingles and the rear edge underneath the shingles).
Note: The unit must be sealed between the roof (or wall) and the underside of the flange with roofing mastic to
prevent leaks.
4. Connect fan to the exhaust system 10" round duct for LOHE. Use adjustable elbow to adjust to roof angle.
5. Duct tape all joints to prevent air leaks.
6. Clearance to combustible material is 0".
3
14"
14"
Roof or Wall
Down Slope
14" x 14"
Cutout
Option
11" dia.
Cutout
11/4" dia.
Cutout
7"
1"
1"
6 15/16"
Fig. 6
LOHE Cut out Dimensions