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MODEL  QTRE080R

INSTALL MOUNTING FRAME 
& HOUSING

1.  Hold one side of the mounting frame so the tabs 

touch the bottom edge of the framing member.  Nail or 
screw mounting frame in place.  Extend the mounting 
frame to the opposite framing member, and nail or 
screw in place.

2.  Snap the duct connector onto the duct connector 

bracket.  Attach the duct connector bracket to the 
mounting frame using the screw provided.  Position 
the bottom edge of the duct connector bracket so it 
will be flush with the finished surface of the ceiling 
and tighten the screw.

3.  Position the two movable brackets of the mounting 

frame directly across from each other and insert the 
housing into the mounting frame until it touches the 
duct connector bracket.  Secure the housing to the 
mounting frame and duct connector bracket using the 
(5) screws provided. Position the housing horizontally 
as desired.

4.  Connect 4” round ductwork to duct connector.  Run 

ductwork to a roof cap or wall cap.  Tape all ductwork 
connections.

NEW CONSTRUCTION INSTALLATION

INSTALL DUCTWORK

5.  Run 120 VAC housing wiring to installation location.  

Use a UL approved connector to secure house wiring 
to wiring plate.  Connect wires as shown in wiring 
diagrams.

INSTALL ELECTRICAL WIRING

DUCT

CONNECTOR

TABS

TABS

SCREW

OR NAIL (4)

MOUNTING

FRAME

FRAMING

MEMBER

SCREW

(provided)

SCREW (5)

(provided)

HOUSING

DUCT CONNECTOR 

BRACKET

Summary of Contents for ULTRA SILENT QTRE080R

Page 1: ...ing excessive or unusual noises replace the motor with the exact service motor The impeller should also be replaced OPERATION Use an on off switch or speed control to operate this ventilator See Connect Wiring for details Use of speed controls other than the Broan Models 78V and 78W may cause a motor humming noise To register this product visit www broan com BROAN THREE YEAR LIMITED WARRANTY Broan...

Page 2: ...or wall cap that has a built in damper to reduce backdrafts Plan to supply the unit with proper line voltage and appropriate power cable Housing mounted anywhere between I joists using mounting frame Housing mounted anywhere between standard joists using mounting frame Cooking Equipment Floor COOKING AREA Do not install above or inside this area 45o 45o NOT FOR USE IN A COOKING AREA A mounting fra...

Page 3: ...ackets of the mounting frame directly across from each other and insert the housing into the mounting frame until it touches the duct connector bracket Secure the housing to the mounting frame and duct connector bracket using the 5 screws provided Position the housing horizontally as desired 4 Connect 4 round ductwork to duct connector Run ductwork to a roof cap or wall cap Tape all ductwork conne...

Page 4: ...r the ceiling opening Position one side of the mounting frame so it touches the framing member Nail or screw mounting frame in place Extend the mounting frame to the opposite framing member and nail or screw in place INSTALL MOUNTING FRAME 4 Snap the duct connector onto the duct connector bracket Retrieve the existing ductwork from above the ceiling and connect it to the duct connector Tape the co...

Page 5: ...g electrical wiring from above the ceiling and use a UL approved connector to secure it to the wiring plate Re attach wiring plate to fan housing if necessary Connect wires as shown in wiring diagrams 7 Position the two movable brackets of the mounting frame directly across from each other and insert the housing into the mounting frame until it touches the duct connector bracket Secure the housing...

Page 6: ...onnector Bracket 10 97018138 Frame Assembly 11 99420665 Thumbscrew 8 18 x 375 Order service parts by Part No not by Key No SERVICE NOTE To remove Blower Assembly Unplug motor Remove thumbscrew 11 from motor plate flange Find the single TAB on the motor plate located next to the receptacle Push up near motor plate tab while pushing out on side of housing Or insert a straight blade screwdriver into ...

Page 7: ...Page 7 MODEL QTRE080R ...

Page 8: ...Page 8 MODEL QTRE080R 99044515B ...

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