EXINDA Aura 5 kW Vertical Stack All-in-One Heat Pump ERV (HPERV)
More comfort, without crowding the ceiling.
Where a home has limited ceiling void depth, AURA 5 kW Vertical Stack offers an accessible indoor alternative. Heating, cooling and fresh-air ventilation serve two-bedroom and larger flats or townhouses through ductwork, with the unit in a dedicated floor-standing position. Its upright format supports convenient servicing without a separate outdoor condenser.
Core Specifications
| System type | Vertical-stack all-in-one heat pump energy recovery ventilator |
| Rated cooling | 5.28 kW; EER 2.78 W/W at 35°C outdoor / 26.7°C indoor rating conditions |
| Heating capacity | 5.86 kW at 8.3°C; 4.4 kW at -5°C; 2.64 kW at -15°C |
| Heating COP | 3.08 at 8.3°C; 2.38 at -5°C; 1.76 at -15°C |
| Balanced ERV airflow | 19.8–63.7 L/s; 63.7 / 42.5 / 19.8 L/s high / medium / low |
| Indoor supply airflow | 287.9 L/s cooling / 337.4 L/s heating at 90 Pa |
| Maximum indoor ESP | 125 Pa (125 Pa), combined supply and return duct losses |
| Heat-pump outdoor air circuit | 292.6 L/s at 149 Pa; not the balanced ventilation rate |
| Power supply | 208–230 V / 50 Hz / 1 Ph, hardwired |
| MCA / MOP — submittal configuration | 35 A / 40 A |
| Optional electric auxiliary heating | 3 kW / 4 kW / 5 kW |
| Compressor / refrigerant | BLDC twin-rotary inverter / R32 A2L, 1.4 kg charge |
| Operating range | Compressor -15 to 42.8°C; auxiliary heat -35 to 42.8°C |
| Sound pressure | 50 dB(A) at 1 m; 45 dB(A) at 3 m |
| Filters / ERV core | MERV 13 indoor; MERV 4 return and condenser; cross-flow heat exchanger |
| Dimensions / weight | 879 × 351 × 2101 mm / 147.4 kg |
CE CB SAA MEPS approved
Heating, Cooling and Ventilation Performance
The heat-pump outdoor circuit and balanced ERV circuit are separate air systems.
| Operating point | Capacity | Input / efficiency | Condition |
|---|---|---|---|
| Cooling | 5.28 kW | 1,900 W; EER 2.78 W/W | 35°C outdoor / 26.7°C indoor |
| Heating | 5.86 kW | 1,900 W; COP 3.08 | 8.3°C outdoor |
| Low-temperature heating | 4.4 kW | 1,850 W; COP 2.38 | -5°C outdoor |
| Minimum compressor condition | 2.64 kW | 1,500 W; COP 1.76 | -15°C outdoor |
| ERV-only heating test | 19.8 / 42.9 / 63.7 L/s | 86% / 73% / 65% SRE | 0°C inlet supply |
AURA Technical Documents
Compare all AURA heat pump models
AURA Selection Questions
Can the system supply the sitting room and bedrooms?
Yes. A branched supply-duct layout carries air to the individual rooms, with a return route to the unit. Your designer allocates airflow to suit how each room is used.
Should I use the ceiling void or a floor-standing unit?
A vertical unit suits a home with a shallow ceiling void and space for an indoor cabinet. Reserve its floor position and service clearance early, then coordinate the ducts to the occupied rooms.
Where can the unit go when planning a home or refurbishment?
Choose a dedicated service position with access to the cabinet and its connections, away from sleeping and sitting areas where practical. Plan the support, vibration isolation and drainage with the installation team.
How does the system connect through the external wall?
Separate air-intake and discharge ducts run to external openings or a coordinated louvre arrangement. This avoids a separate outdoor condenser. Include the openings, insulation and separation in the façade design.
How are fresh air and bathroom extract arranged?
The integrated ERV supplies fresh air and recovers energy from outgoing air. A bathroom extract route can form part of this arrangement, with the airflows and controls coordinated for the home.
How much floor space should we reserve for the unit?
The cabinet measures 879 × 351 mm at the base and stands 2101 mm high. Set aside a dedicated equipment position plus clear space for opening panels and removing service parts. This layout is useful where ceiling depth is limited; ducts still need their own route.
What access should the installer leave for servicing?
Keep sufficient space at the service panels for filter removal and component access. This allows routine work at the cabinet without reaching through a ceiling hatch.
Can supplementary electric heating be specified?
Yes. Options of 3, 4 or 5 kW are available to suit the dwelling’s heating requirement and electrical supply.
Can one development combine different sizes and layouts?
Yes. Compact flats, larger dwellings and guest accommodation can use different AURA sizes or installation formats. Send the project location, floor plans and unit mix for model selection and technical support.
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