Ventilation Duct

1. Mark all inlet and outlet locations and measure lengths required.
2. Pre-cut and pre-assemble as much of each run as possible at grade level. Prepare common runs together.
3. Lengths can be cut to size with a cut-off saw.
4. Use #8 × 1/2" sheet metal screws to attach components.
5. Use couplers to join two lengths. Screw top, bottom and tape. Joints are flexible and can be used for minimal offsets.
   IMPORTANT: To ensure proper damper operation, install wall discharge as indicated by labels.
6. Move pre-assembled components to installation floor.
7. Install ECCODUCT™ before the top course of rebar or post tensioning cables are laid in place. WARNING: NO FOOT TRAFFIC ON DUCTWORK.
8. Screw discharge fittings to forms using #8 × 3/4" sheet metal screws. Check to ensure that wall discharge is installed correctly as indicated by labels.
9. Slide remaining lengths into place as previously marked out. TAPE ALL JOINTS WITH TAPE APPROVED BY THE ENGINEER.
10. Attach plastic support brackets with #8 × 1/2" sheet metal screws to both sides every 5' maximum and at all joints and couplers. Screw brackets down with #8 × 3/4" screws.
11. Pour slab. Inspect for damage. Replace or repair as needed
12. Remove forms after curing.
13. Tabs on inlet boot are bent down later when attaching pipe from fan.
14. Remove deck screws from discharge.
15. If fascia is to be applied, use fascia extensions. Screw fascia extension to wall discharge, adjust to required length and screw through fascia extension sides to lock in position.
16. Fasten approved hood to discharge through holes provided.

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Dryer Duct

1. Mark all inlet and outlet locations and measure lengths required.
2. Pre-cut and pre-assemble as much of each run as possible at grade level. Prepare common runs together.
3. Lengths can be cut to size with a cut-off saw.
4. Tape all joints.DO NOT USE SCREWS TO SECURE DUCT.
5. Use couplers and elbows to join two lengths. Tape all joints. Joints are flexible and can be used for slight offsets. IMPORTANT: To ensure proper damper operation, install wall discharge as indicated by labels.
6. Move pre-assembled components to installation floor.
7. Install ECCODUCT™ before the top course of rebar or post tensioning cables are laid in place. WARNING: NO FOOT TRAFFIC ON DUCTWORK.
8. Screw discharge fittings to forms using #8 × 3/4" sheet metal screws. Check to ensure that wall discharge is installed correctly as indicated by labels.
9. Slide remaining lengths into place as previously marked out. TAPE ALL JOINTS WITH TAPE APPROVED BY THE ENGINEER.
10. Locate plastic support brackets to both sides every 5' maximum and at all joints and couplers. Screw brackets to formwork with #8 × 3/4" screws. Secure duct to plastic support brackets with nylon DN-36 Dyn-O-Ties.
11. Pour slab. Inspect for damage. Replace or repair as needed.
12. Remove forms after curing.
13. Tabs on inlet boot are bent down later when attaching pipe from fan.
14. Remove screws from discharge.
15. If fascia is to be applied, use fascia extensions. Screw fascia extension to wall discharge, adjust to required length and tape to lock in position.
16. Fasten approved hood to discharge through holes provided.

The ECCODUCT™ system can be used for supply and/or exhaust as well as for clothes dryer exhaust. For clothes dryers the following design criteria should be considered:

• Use of an approved dryer booster fan.
• Use of an external lint trap.
• All duct joints to be taped using a tape approved by the engineer.
• A regular maintenance schedule for the dryer ducts should be established by the building owner in conjunction with a professional duct cleaning service.

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