RVU units
RVU = Residential Ventilation Unit, air handling units with nominal airflow below 250 m³/h
In the case of small ventilation units, other requirements apply to the actual product - similar to the large unit but with an additional requirement for energy labelling, as with refrigerators, etc.
The requirements mainly relate to information and the energy label:
The following information must be shown:
- The unit's annual energy consumption (kWh/m² per year, negative value)
- Output of the used heat recovery system
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In addition to energy labelling of the system, a large amount of information must be available, both on the Internet and provided with the unit. The idea of the energy label is that it helps customers to decide on the best solution in terms of energy consumption and price.
| SEC (specific energy consumption) |
Less than -20 kWh/m³ x year
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| Room sound output (LWa) |
40 dB |
| Variable speed |
Minimum 3 speeds or variable |
| By-pass function |
Thermal by-pass |
| Filter warning |
Visual signal |