Page 4 of 7 IN018 Rev H
6.0 Installation
Step 1: Install Mounting Bracket as shown (RB110 & RB 275 Only,
separate instructions for RB400 & RB500 are included with Mounting
Bracket Kit). Insert Grommets into slots in mounting bracket. Orientate
the Electrical Box relative to Mounting Bracket as required. Attach the
fan to the mounting bracket with (3) #10 self-tapping screws, provided.
Avoid over tightening screws.
Step 2: Select location for fan mounting. A location 2/3 along the
ducting, a minimum of 10 feet away from the inlet vent to the fan or the
Y/T of a multi-intake system will provide the quietest operation. Fan
should be mounted vertically to prevent moisture from accumulating in
the fan housing. Attach bracket to mounting structure with the 1 1/4”
screws provided.
Step 3: Connect ductwork between fan inlet and area to be vented
through inlet grille. Flexible, nonmetallic ducting is recommended for
quietest operation and easiest installation. Insulated flexible ducting is
highly recommended for bathroom ventilation in all cold climate
installations. Metal worm drive clamps, spring clamps, adjustable
plastic ratchets are recommended for connection of ducting. Duct Tape
should be used to retain insulation.
Step 4: Connect inlet grille(s). An optional backdraft damper may be
installed in the inlet grille to prevent cold air from backing into the inlet
and also prevent condensation from forming inside the ductwork.
Backdraft dampers are highly recommended at each intake grille for
bathroom ventilation in all cold climate installations.
Step 5: Connect outlet of fan to outside vent. The outside vent may go
through the roof, sidewall or soffit as desired. Flexible, nonmetallic
ducting is recommended for quietest operation and easiest installation.
Insulated flexible ducting is highly recommended for bathroom
ventilation in all cold climate installations.
Step 6: Make electrical connection to fan.
Insure any metal fitting used in the installation is properly grounded. A
plastic cable connector such as a T&B #3300 may be used to avoid any
fitting-grounding problem. Observe the proper wiring connections:
RB Series Wire AC Connection
Black AC Line
White AC Common
Green or Grn/Yel Ground
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