Arzel Zoning
You can often eliminate the need for bypass with a well-designed zoning system. But if you need a small bypass, that’s okay too. See our guide to managing static pressure for more information.
The ModuPASS® bypass system works with variable speed motors and constantly monitors the static pressure in the trunk and adjusts to allow the prescribed amount of bypass air. We recommend the ModuPASS when you need bypass with all variable-speed blowers.
| Part Number | Description |
|---|---|
| MOD-BYP08 | 8-inch diameter ModuPASS kit |
| MOD-BYP10 | 10-inch diameter ModuPASS kit |
| MOD-BYP12 | 12-inch diameter ModuPASS kit |
| MOD-BYP14 | 14-inch diameter ModuPASS kit |
| MOD-DMP08 | 8-inch ModuPASS damper only |
| MOD-DMP10 | 10-inch ModuPASS damper only |
| MOD-DMP12 | 12-inch ModuPASS damper only |
| MOD-DMP14 | 14-inch ModuPASS damper only |
| MOD-FDKIT | ModuPASS field install kit (Includes pitot tube and transmitter. No damper included.) |
| Part Number | Description |
|---|---|
| SPD-R0008 | 8-inch diameter round barometric damper |
| SPD-R0010 | 10-inch diameter round barometric damper |
| SPD-R0012 | 12-inch diameter round barometric damper |
| SPD-R0014 | 14-inch diameter round barometric damper |
| SPD-R0016 | 16-inch diameter round barometric damper |
| SPD-S0812 | 8 x 12-inch barometric damper |
| SPD-S0814 | 8 x 14-inch barometric damper |
| SPD-S0820 | 8 x 20-inch barometric damper |
| SPD-S1210 | 12 x 10-inch barometric damper |
| SPD-S1212 | 12 x 12-inch barometric damper |
| SPD-S2010 | 20 x 10-inch barometric damper |
| SPD-S2012 | 20 x 12-inch barometric damper |
