Service Life Data Query
Use criteria to evaluate potential service life in different HVAC components and building environments.
Matching Buildings
321
Equipment Found
2,469
Criteria
System Type: Control
* Equipment with no units, not shown. View full HVAC Equipment List here.
| Equipment | Total Units | Currently in Service | Replaced | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Units | Mean | Median | Std Dev | 95% C.I. | Max | Min | Units | Mean | Median | Std Dev | 95% C.I. | Max | Min | ||
| Energy mgmt. system, direct digital controls | 146 | 115 | 10.9 | 10.0 | 5.2 | 1.0 | 26.0 | -6.0 | 31 | 24.7 | 25.0 | 13.4 | 4.7 | 52.0 | 4.0 |
| Energy mgmt. system, hybrid system with elec./pneumatic components | 133 | 101 | 13.6 | 13.0 | 5.3 | 1.0 | 26.0 | 3.0 | 32 | 16.7 | 14.0 | 11.7 | 4.1 | 48.0 | 1.0 |
| Other control system | 38 | 30 | 15.0 | 13.0 | 7.7 | 2.7 | 42.0 | 6.0 | 8 | 32.6 | 25.0 | 24.9 | 17.2 | 88.0 | 11.0 |
| Energy mgmt. system, all pneumatic components | 20 | 19 | 16.2 | 17.0 | 7.2 | 3.2 | 28.0 | 6.0 | 1 | 11.0 | 11.0 | n/a | n/a | 11.0 | 11.0 |
| Pneumatic controls | 19 | 19 | 35.0 | 37.0 | 7.7 | 3.8 | 51.0 | 17.0 | 0 | n/a | n/a | n/a | n/a | n/a | n/a |
| Energy mgmt. system, all electronic components | 101 | 77 | 12.5 | 11.0 | 7.0 | 1.6 | 37.0 | 5.0 | 24 | 22.1 | 18.0 | 16.3 | 6.5 | 69.0 | 8.0 |
| Time clock | 18 | 16 | 9.3 | 4.0 | 10.5 | 10.3 | 25.0 | 4.0 | 2 | 20.0 | 20.0 | n/a | n/a | 20.0 | 20.0 |
| Thermostats, electric | 1 | 1 | 22.0 | 22.0 | n/a | n/a | 22.0 | 22.0 | 0 | n/a | n/a | n/a | n/a | n/a | n/a |
| Manual control | 7 | 6 | 14.3 | 11.5 | 11.3 | 9.1 | 37.0 | 7.0 | 1 | 76.0 | 76.0 | n/a | n/a | 76.0 | 76.0 |