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IN009 Rev N 0120 43 Saber Way, Ward Hill, MA 01835 | spruce.com
4.0 BACKDRAFT DAMPERS
Backdraft dampers allow airow in only one direction preventing cold/hot drafts from entering the vented area and
minimize possible condensation and icing within the system while the fan is not operating. Backdraft dampers
are highly recommended at each intake grille for bathroom ventilation in all cold climate installations. Installation
instructions are included with Spruce backdraft dampers.
5.0 ELECTRICAL WIRING
All wiring must be performed in accordance with the National Fire Protection Association’s (NFPA) ”National Electrical
Code, Standard #70” current edition for all commercial and industrial work, and state and local building codes.
All wiring must be performed by a qualied and licensed electrician. A Ground Fault Interrupter (GFI) circuit is not
required in most installations; check your local codes. Ensure that all exterior electrical boxes are outdoor rated and
properly sealed to prevent water penetration into the box. A means, such as a weep hole, is recommended to drain
the box. Note that the fan is not intended for connection to rigid metal conduit.
6.0 APPLICATIONS
Suitable for general ventilation, bathroom venting, fresh air supply, duct boosting, building pressurization, etc.
Not suitable for kitchen range hood venting.