46 Installation (for qualified installers only)© Travis Industries 9/25/17-1468 MaestroInterior Power Vent - Minimum Vent Pre and Post Blower Minimum Vent Pre-Blower = 2’ Straight Section (24”) – 4’ (48”) or more recommended) Minimum Vent Post-Blower = 2’ Straight Section (24”) – 4’ (48”) or more recommended)Interior Power Vent – Mounting! THE B-VENT AFTER THE EXHAUST BLOWER MUST BE SEALED(use rtv silicone, pressure pipe, or equivalent). Certain jurisdictionsmay require sealed b-vent pressure pipe (consult with your localbuilding official for requirements in your area).! The blower may be placed on its side or with the motor upwards. DO NOTPOSITION THE ASSEMBLY SO THE BLOWER MOTOR IS BELOW THEASSEMBLY – SEE ILLUSTRATION TO THE RIGHT. This will greatlyshorten blower life and void the warranty. Use the included brackets to help secure the blower and exhaust damper inplace (see illustration below). Use straps/supports/framing to secure the blower in a workmanlike manner. Test the blower prior to sealing the vent enclosure to ensure proper noiseabatement has been achieved. You way wish to isolate the blower mountingto reduce vibration.