Advertisement
ASSEMBLY INSTRUCTIONS
5. Mount with additional mounting holes
The interior of the fan housing contains additional mounting holes in case
exterior mounting is not possible.
Screw or nail the fan housing directly to the framing or joists.
Remove the blower assembly as directed in the service parts section of this
manual to gain access to the additional mounting holes.
6. Install DUCT AND BLOWER ASSEMBLY
a.Install duct from the inside of the housing; Fix the duct by the tab.
b.Fix the BLOWER ASSEMBLY to the housing by 3 screws.
7. INSTALL ROUND DUCTWORK
a. Connect the round ductwork (not included) to the damper/duct
connector, and run the ductwork to a roof or wall cap (not included).
b. Using tape (not included), secure all the ductwork connections so
that they are air tight.
c. Insulated flexible duct is recommended for the quietest possible
installation. If rigid duct is used, a short (1-3 feet) section of insulat-
ed flexible duct will ensure quiet operation.
The ducting from this fan to the outside of building has a strong effect on the
air flow, noise and energy use of the fan. Use the shortest, straightest duct
routing possible for best performance, and avoid installing the fan with
smaller ducts than recommended. Insulation around the ducts can reduce
energy loss and inhibit mold growth. Fans installed with existing ducts may
not achieve their rated air flow.
RETROFIT INSTALLATION
Before installation-Turn off power source. Remove old fan.
B1. Measure the opening to ensure it is not larger than 7 2/5"x7 3/4".
Cut a 7 2/5"x7 3/4" opening.
B2. Fold mounting ears flat against housing.
B3. Attach the housing with 2 screws to the joist through additional
mounting holes.
B4. Pull the housing wires through the housing hole, secure 120V AC
housing wiring from the wall switch to the fan as shown in the wiring
diagram.
B5. Follow the step "ASSEMBLY INSTRUCTIONS 7"
B6. Follow the step "ASSEMBLY INSTRUCTIONS 6a"
B7. Follow the step "ASSEMBLY INSTRUCTIONS 6b"
3
additional mounting holes
Hole
Hole
Hole
additional mounting hole
Advertisement
