Warranty
Page 3
MODELS QTREN080FLT • QTREN110FLT  
4.  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.
CONNECT WIRING
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”.
Attach the MOUNTING CHANNELS to the housing using 
the SCREWS supplied. Make sure TABS face “up” as shown. 
Use the set of channel 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.
HANGER
BAR (4)
SCREWS (4)
TAB
  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.
HOLE FOR OPTIONAL 
SCREW MOUNTING (4)
STD
MOUNTING
CHANNEL (2)
NAIL (4)
BOTTOM EDGE 
OF FRAMING
2.  Attach 
damper/duct 
connector.
Snap damper / 
duct connector 
onto housing. 
Make sure con-
nector is flush with 
top of housing and 
damper flap falls 
closed.
3.  Install 
4-inch round 
ductwork.
Connect 4-inch 
round ductwork 
to damper / duct 
connector. Run 
ductwork to a roof 
cap or wall cap. 
Tape all ductwork 
connections to 
make them se-
cure and air tight.
*
 SCREW (2)








