| Type | Index number | Status |
|---|---|---|
| Centralised MEV and MVHR systems | 500062 | Normal |
| Brand | Model name | Model qualifier |
| Helios | KWL EC 450 | |
| System type | balanced whole-house mechanical ventilation with heat recovery | |
| Duct type | rigid | |
| Minimum duct size | 125 mm diameter or 204 x 60 rectangular or larger | |
| Original manufacturer name | Helios Ventilation Systems Ltd | |
| Current manufacturer name | Helios Ventilation Systems Ltd | |
| Manufacturer address |
Crown Gate Wyncolls Road The Seedbed Centre Severalls Industrial Park Colchester CO4 9HT |
|
| Manufacturer phone | 01206 228500 | |
| Manufacturer website | www.heliosfans.co.uk | |
| First year of manufacture | 2008 | |
| Final year of manufacture | current | |
| Summer bypass | no | |
| Integrated to exhaust air heat pump | No | |
| Entry updated | 11/11/2015 10:34 | |
| K+n wet rooms | SFP (W/l/s) [2009] | Efficiency (%) [2009] | SFP (W/l/s) [2012] | Efficiency (%) [2012] | SFP (W/l/s) [10] | Efficiency (%) [10] |
|---|---|---|---|---|---|---|
| n = 1 | 1.01 | 75% | 0.99 | 77% | 0.99 | 77% |
| n = 2 | 0.93 | 77% | 1.01 | 77% | 1.01 | 77% |
| n = 3 | 0.94 | 77% | 1.10 | 80% | 1.10 | 80% |
| n = 4 | 1.01 | 79% | 1.22 | 81% | 1.22 | 81% |
| n = 5 | 1.06 | 80% | 1.35 | 81% | 1.35 | 81% |
| n = 6 | 1.13 | 81% | 1.49 | 82% | 1.49 | 82% |
| n = 7 | 1.25 | 81% | 1.64 | 82% | 1.64 | 82% |
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