MODEL RDJ1
Page 1
For Use in 1, 2 or 3 Hour Rated Floor-Ceiling and Roof-Ceiling Designs.
Horizontal Mount Only.
For use with the following ventilation fan models:
• Broan DX90, DX110, HD50, HD80, 676, 676EX, 683, 683C, 684, 770, 784
• NuTone HD50NT, HD80NT, NT080C, 50NT, 80NT, 671SP, 672SP, 684NT
The following components are included with this accessory
kit:
(1) Radiation Damper Assembly
(1) Metal Duct Connector
(1) Metal Fan Grille
(2) Slide Channels
(4) Support Angles
(1) Plaster Guard
Parts Bag Containing:
(8) #8-18 x 0.375” Screws
(2) #8-18 x 0.812” Screws
RADIATION DAMPER
ACCESSORY KIT
READ AND SAVE THESE INSTRUCTIONS
FIG. 1
FIG. 2
Identify the following ventilation fan (purchased
separately) components and discard:
• Plastic Fan Grille Assembly
• Plastic Duct Connector Assembly
Assemble slide channels, support angles and duct
connector to ventilation fan housing: (Fig. 1)
1. Snap metal duct connector onto housing. Make
sure that tabs on the duct connector lock into the
slots on the housing. Damper flap hinge should be
positioned toward top of housing.
2. Attach the (2) slide channels to the housing using
(4) #8-18 x 0.375” sheet metal screws (provided).
The slide channel position can be adjusted to
accommodate different ceiling material thicknesses.
3. Insert (2) support angles into each slide channel.
Assemble radiation damper to fan housing: (Fig. 2)
4. Position radiation damper on the inlet side of the
fan so the arrow shown on spec label in the damper
points UP in the finished installation. Attach the
damper to the fan using (4) #8-18 x 0.375” sheet
metal screws (provided). There must be a minimum
of two connections on each of two opposite sides.
Take care to ensure that the fasteners do not
interfere with the closing of the damper curtain.
METAL DUCT
CONNECTOR
HOUSING
SLIDE
CHANNEL
SUPPORT
ANGLE
RADIATION
DAMPER
ASSEMBLY
