Domus HRXE-AURA-B Heat Recovery Unit User Guide
- August 18, 2024
- DOMUS
Table of Contents
Domus HRXE-AURA-B Heat Recovery Unit
Today’s homes are built with extra insulation to keep warm air in and reduce energy costs. This however leaves very little opportunity for your home to be naturally ventilated. Ventilation establishes a good level of indoor air quality and an environment that is free from condensation, odours and indoor pollutants caused by cooking, washing and day to day living. It is therefore important that you have adequate ventilation in your home. Having the Domus HRXE-AURA-B ventilation unit installed in your home will not only ensure that your property has good indoor air quality, it will protect the fabric of your home from condensation and mould, thus resulting in a healthier living environment.
Specifications:
- Model: HRXE-AURA-B
- Description: Standard unit with 100% bypass
Product Information:
Today’s homes are built with extra insulation to keep warm air in and reduce energy costs. However, this can lead to poor ventilation. The Domus HRXE- AURA-B ventilation unit helps maintain good indoor air quality, prevent condensation and mold, and create a healthier living environment.
Operating the Unit:
Your unit is set to run continuously to ventilate your home. During high humidity levels, like when cooking or bathing, the unit can be boosted to remove excess moisture. A run-on timer may keep the boost function running for an additional 5 to 30 minutes.
At installation your unit will have been set to run continuously to a level
that will adequately ventilate your home for the majority of the day.
However, there will be occasions when the humidity/moisture levels in your
home will rise; this is usually due to activities such as cooking and bathing
or showering. During these times your unit has the functionality to increase
its extract rates via a boost mode, and remove the excess moisture.
There are a few ways in which the HRXE-AURA-B system can be set to boost. A housing provider/housebuilder will determine system settings as part of the installation, but you may override these functions with manual operation. The most common method is via remote switches which may also be provided at the time of install; usually situated in the kitchen and bathroom areas. To increase the extract rates manually simply set the switch to boost, and when you are ready to resume normal operation turn it back off. The system installed in your home has an integral humidistat (HRXE-AURA-H-B and HRXE- AURA-OPH-B models only). This means that it measures the humidity in your wet rooms, i.e. kitchen and bathrooms, and will automatically switch to boost should the humidity levels rise above normal. Please note that your boost setting may have been commissioned with a run-on timer which will result in the boost function running between 5 to 30 minutes after it has turned off. This is to ensure the excess moisture is totally cleared.
WHAT MAINTENANCE IS REQUIRED?
The filters (located on the front of the unit) are to be inspected every 6 months and replaced every 12-18 months (sooner if required). Failure to do so may impair the performance and energy efficiency of this unit. It is important that the unit must not be operated for extended periods without filters. A flashing light-emitting diode (LED) will indicate that a filter change is required. This indication repeats every 12 months and will turn off automatically after 5 days. Remove the flat magnetic filter covers on the front panel of the unit and pull the removal loop on the front edge of the filter. Once the filters have been inspected return or replace them as necessary. If the red light is flashing, please contact your maintenance provider, for further instructions download the HRXE-AURA-B Installation and Maintenance manual from www.domusventilation.co.uk. For replacement filters contact Domus and quote part number SPR447.
IF I NEED SOME ADVICE, WHO DO I CONTACT?
In the first instance please contact your housing provider or house builder.
Domus have a team of technical experts on hand to help. For general enquiries
please contact us on 03443 715 523 or email our team
vent.info@domusventilation.co.uk.
When calling Domus, if possible, please check your fan for the serial number located on the fan label.
| Codes | Description |
|---|---|
| HRXE-AURA-B | Standard unit with 100% bypass |
| HRXE-AURA-H-B | Standard unit with 100% bypass and integral humidistat |
| HRXE-AURA-OP-B | Opposite handed unit with 100% bypass |
| HRXE-AURA-OPH-B | Opposite handed unit with 100% bypass and integral humidistat |
Contact Information:
For advice or maintenance, contact your housing provider or Domus at 03443 715 523 or vent.info@domusventilation.co.uk. Refer to the product manual for detailed instructions.
For ordering spares online please visit:
https://domusventilation.co.uk/spares-
accessories/
FAQ:
Q: How often should I replace the filters?
A : Filters should be inspected every 6 months and replaced every 12-18
months or sooner if needed.
Q: What does a flashing red light indicate?
A : A flashing red light indicates that a filter change is required.
Contact maintenance if the light continues to flash after replacing the
filter.
©Domus Ventilation 2024. Issue date 2024-06. Document number: 671953.
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