Annex IV INDICATIVE BENCHMARKS REFERRED TO IN ARTICLE 6
United Kingdom
At the time of adoption of this Regulation, the best available technology on the market for fans is as indicated in Table 1. These benchmarks may not always be achievable in all applications or for the full power range covered by the Regulation.
Table 1
Indicative benchmarks for fans
| Fan types | Measurement category (A-D) | Efficiency category(static or total) | Efficiency grade |
|---|---|---|---|
| Axial fan | A, C | static | 65 |
| B, D | total | 75 | |
| Centrifugal forward curved fan and centrifugal radial bladed fan | A, C | static | 62 |
| B, D | total | 65 | |
| Centrifugal backward curved fan without housing | A, C | static | 70 |
| Centrifugal backward curved fan with housing | A, C | static | 72 |
| B, D | total | 75 | |
| Mixed flow fan | A, C | static | 61 |
| B, D | total | 65 | |
| Cross flow fan | B, D | total | 32 |