City Series CV60E-1 | 69installationVent Chart for Power Vent OnlyHorizontal Terminations - End of Line Horizontal Vent ChartVent Restrictor PositionThis negative run is for the end ofline power vent cap only. Do notrun with the inline power vent.72' (21.95 m) overall length max.Shown with 5 - 900 elbowsRestrictor - Fully Open72' (21.95 m) overall length max.Shown with 3 - 900 elbows72' (21.95 m) run (no rise)Shown with 2 elbows (negative run 72' - 21.95 m)No vent restrictor required.318"Set 0Fully openFactory SetThe gas power vent system is designed to allow the installation of a gas appliance when typical vent configurations (shown in this manual) are notpossible.NOTES •• Rigid pipe is approved for up to 72 feet (22 m).Rigid pipe is approved for up to 72 feet (22 m).•• Flex pipe is approvedFlex pipe is approved for up to 40 feet (12.2 m) using two 20 foot (6.1 m) flex kits (part # 946-756).for up to 40 feet (12.2 m) using two 20 foot (6.1 m) flex kits (part # 946-756).•• This model coThis model comes with a 5" (127 mm) inner and an 8" (203 mm) outer collar which must be reduced to 4" x 6-5/8" (102 mm x 168 mm) in all ap-mes with a 5" (127 mm) inner and an 8" (203 mm) outer collar which must be reduced to 4" x 6-5/8" (102 mm x 168 mm) in all ap-plications.plications.•• Must be terminated horizontally. Vertical terMust be terminated horizontally. Vertical terminations are not permitted.minations are not permitted.RIGID PIPE: MUST USE RIGID PIPE ADAPTOR 770-994 AND 946-606 PIPE REDUCER TO 4" X 6 5/8" (102 mm x 168 mm).FLEX VENT: MUST USE REDUCER 946-758 TO 4" X 6 5/8" (102 mm x 168 mm).For the complete Power Vent installation, refer the Power Vent System installation instruction in Power vent system KitEnd of Line Power Vent Kit # 946-535IMPORTANT •• Maximum total vent length (based on overall length of combined chimney components) = 72' (21.95 m)Maximum total vent length (based on overall length of combined chimney components) = 72' (21.95 m)•• Maximum total negative vent length = 7' (2.1 m).Maximum total negative vent length = 7' (2.1 m).•• Do not run positive venting after a negative run.Do not run positive venting after a negative run.•• Maximum of six - 90° elbows permitted.Maximum of six - 90° elbows permitted.•• One 90° elbow = two 45° elbows.One 90° elbow = two 45° elbows.•• Minimum 4' (1.2 m) from the unit prior to terminating.Minimum 4' (1.2 m) from the unit prior to terminating.