20 Patterson Book Rd. Suite 7
West Wareham, MA 02576
774-678-4433 / 800-222-5932
1.
The fan housing will fir either 16” or 24” on center
framing. Cut two pieces of 2x stock (2x6 or 2x8 etc.) of
the same dimension as the existing joists. Add these
pieces of framing to form a box between the joists
(Figure 1).
TIP:
When the HV3400 is to be installed in a location
with low ceilings, some homeowners find that building
a box out of 2x10s or a similar material will raise the
HV3400 to a position where the sound level will be
reduced but the efficiency of the fans will not be
diminished. This box should not exceed 24” in height.
2.
Cut a hole in the ceiling under where the HV3400 will
be installed. The hole should be no larger than 14
½”x22 ½”. This will allow for the grille to cover the
exposed edges. The suggested method for making the
proper sized hole in the ceiling is; cut a pilot hole under
where the fan will be installed (Figure 2). From above,
using a saw, cut along the inside edge of the
framework removing the ceiling panel and any
strapping within the framework.
Do not damage
electrical wiring or other hidden utilities.
3.
Install a foam weather stripping or other flexible
material (not supplied) on top of the joists and added
framing. This will serve to seal between the housing
and the framing as well as dampen vibrations. Check
the joint between the 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 HV3400 lower housing onto the framing. The
lower housing will fit into the box with the mounting
flanges overlapping the framing.
DO NOT DRAG THE
HV3400 INTO POSITION AS THIS MAY SEVERLY DAMAGE
IT.
5.
Set the HV3400 upper housing at an angle on top of
the lower housing, orienting the upper housing so that
the fan motor connections are in the same corner
(Figure 4). Push the fan electrical connection into the
fan electrical feed. The connecters are ‘keyed’ so
they will only connect in one way (Figure 5).
You will need the following items: 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 grille, weather
strip material and low expansion spray foam sealant.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Installation
Tools and supplies needed:
