Backdraft Shutter
AssemblyGravity louvre that the fan airstream blows open and which falls closed to seal the wall opening when the fan stops. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Backdraft Shutter
5 top-level lines as of r77504| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Shutter Frame | greenhouse-exhaust-fan-shutter-frame | 1× | 1 | · | part |
| 2 | Shutter Vane | greenhouse-exhaust-fan-shutter-vane | 5× | 5 | · | part |
| 3 | Tie Bar | greenhouse-exhaust-fan-tie-bar | 1× | 1 | · | part |
| 4 | Pivot Bushing | greenhouse-exhaust-fan-pivot-bushing | 10× | 10 | · | part |
| 5 | Felt Seal | greenhouse-exhaust-fan-felt-seal | 1× | 1 | · | part |