1b. Mount housing anywhere between
trusses, joists, or I-joists using hanger
bars.
Sliding hanger bars are provided to allow for accurate posi-
tioning of housing anywhere between framing. They can be
used on all types of framing (I-joist, standard joist, and truss
construction) and span up to 24" .
HANGER
BAR (4)
Attach the MOUNTING CHANNELS to the housing using the
SCREWS supplied. Make sure TABS are oriented as shown.
Use the set of mounting holes (marked "STD") to mount the
housing flush with the bottom of the drywall. Use the other
set of holes (not marked) to mount the housing flush with
the top of the drywall.
HOLE FOR OPTIONAL
SCREW MOUNTING (4)
NAIL (4)
Extend HANGER BARS to the width of the framing.
Hold ventilator in place with the hanger bar tabs wrapping
around the BOTTOM EDGE OF THE FRAMING.
NAIL ventilator to framing or fasten with screws (not provided)
through HOLES near nails.
*
To ensure a noise-free mount: Secure hanger bars together
with SCREWS or use a pliers to crimp mounting channels
tightly around hanger bars.
TAB
SCREWS (4)
MOUNTING
CHANNEL (2)
*
SCREW (2)
BOTTOM EDGE
OF FRAMING
2. Attach damper/
duct connector.
Snap damper / duct con-
nector onto housing. Make
sure connector is flush
with top of housing and
damper flap falls closed.
3. Install
6-inch round duc-
twork.
Connect 6-inch round
ductwork to damper / duct
connector. Run ductwork
to a roof cap or wall cap.
Tape all ductwork con-
nections to make them
secure and air tight.
CONNECT WIRING
WIRING OPTION #1
MODEL 66V, 66W
3-FUNCTION CONTROL (PURCHASE SEPARATELY)
BLK
LIGHT
(ON/OFF)
COM
RED
NIGHT LIGHT
(ON/OFF)
WHT
BLK
FAN
(AUTO/OFF)
BLK
120
WHT
WHT
VAC
LINE
GRD
GRD
IN
SWITCH BOX
WIRING OPTION #2 - Fan can be turned ON, OFF, or set to operate automatically.
MODEL 77DV, 77DW
4-FUNCTION CONTROL (PURCHASE SEPARATELY)
RED
BLU
FAN
(ON/OFF/AUTO)
BLK
COM
NIGHT LIGHT
(ON/OFF)
COM
LIGHT
(ON/OFF)
BLK
BLK
120
VAC
WHT
LINE
IN
GRD
SWITCH BOX
1. Connect electrical wiring.
Run 120 VAC house wiring to installation location. Use
proper UL approved connector to secure house wiring to
wiring plate. Connect wires as shown in wiring diagrams.
MODEL QTXEN110HFLT
BLU
LIGHT
RED
NIGHT LIGHT
ORG
BLK
HUMIDITY
BRN
WHT
CONTROL
WHT
UNIT
BLK
ORG
RED
BLK
BRN
HUMIDITY
CONTROL
WHT
RED
RED
NIGHT LIGHT
BLU
BLK
LIGHT
WHT
WHT
GRD
UNIT
Page 3
WHT
FAN
WHT
FAN
WHT
WHT