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Installation
Tools and supplies needed
You will need two pieces of 2x stock to match your existing framing, a saw to cut the hole in the ceiling, a hammer or
screw gun to attach the blocking to the existing joists and both a flat head and Phillips head screw driver to attach the
grille and for the electrical work.
1. Cut a hole in the ceiling under where the HV will be installed. The dimensions of the
hole should be no greater than 23 1/2" x 14". This will allow for the grille to cover the
exposed sheetrock edges. Suggested methods for making the proper sized hole in the
ceiling are; Cut a pilot hole under where the fan will be installed. Cut toward the edge to
find the joist pattern and lay out the fan opening on the ceiling. (Figure 1) ; or mark the four
corners of the opening from the attic side and draw a line between each of the four
corners to lay out the fan opening; or use a stud finder to locate the joists, cut a template
from the fan packaging material and use the template to lay out the fan opening.
2. The fan housing will fit either 16” or 24” on center framing. Cut two pieces of 2x stock
(2 x 6 or 2 x 8 etc.) of the same dimension as the existing joists. Add these pieces of
framing to form a box between the joists. (Figure 2).
3. Install the foam gasket (supplied) on the top of the joists and added framing. Check
the joint between the ceiling and the 2x stock. Some types of ceilings are spaced away
from the joists. Any gap between the 2x’s and the ceiling should be sealed prior to final
installation. (Figure 3) Use a low expansion spray foam sealant (not supplied).
4. Set the HV on the gasket with the doors facing to open into the attic. The lower
housing will fit into the box with the mounting flanges overlapping the joists. (Figure 4)
The HV should not be forced into this opening. Forcing it into place may cause the
doors to bind and not function properly.
5. If desired, secure the HV to the top of the joists using the screws provided. When
fastening the mounting flange to the joists care should be taken that all screws are
tightened evenly to avoid the door hinges binding.
6. Wire the HV as shown in the Wiring section of this manual. It is recommended that the
wiring of the HV be done by a licensed electrician.
7. Check the HV for proper operation. Turn the unit on and allow 30 seconds for the
doors to fully cycle open and the fans to start. DO NOT FORCE THE DOORS OPEN.
8. Install the grille (6 screws included) on the ceiling below the fan. (Figure 5)
Some owners find the installation has a more finished look when the inside of the blocking has been painted before
the unit is installed and the grille is put in place.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Operating your HV
HV1000 - The HV1000 is operated by the wall switch installed per the wiring
instructions.
HV1600 - The HV1600 is controlled by the hand held remote transmitter. Button 1
is used to turn the unit On/Off and button 2 for High/Low. Additional controls,
when used, may override the remote control. See the Wiring section of this
manual for further details.
IMPORTANT
Be sure at least one window is open when the fan is operating