Development
Space, air paths and installation conditions feed into the design. Planning and manufacturing work hand in hand.
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RA5000 / Cabinet unit
RA5000 cabinet unit
with integrated heat pump.
Heating and cooling with an integrated heat pump: the RA5000 uses the extract/exhaust air stream for heat exchange. In heating mode it absorbs heat from this air; in cooling mode it releases heat into it.
How the system works.
Extract airCondenserExhaust air
Integrated heat pumpRelease heat into the exhaust air
Operating principle inside the unit · No external heat pump location
Functional illustration · Not live readings
Installation arrangement
Heat pump and controls inside the unit.
The system brings heating and cooling equipment together in the cabinet unit. No separate outdoor heat pump is required.
Installation photograph with retouched surroundings. Configuration and accessibility are agreed for each project.
Explore technical views ↓Integrated heat pump and controls.
One shared location for the equipment.
The heat exchanger in the extract/exhaust air stream acts as a condenser in cooling mode and as an evaporator in heating mode. The integrated heat pump removes the need for a separate outdoor heat pump unit. This is an important planning option when an additional outdoor heat pump location is to be avoided.
Installation and planning ↓ Technical views ↓Integrated heat pumpHeating and cooling equipment in the cabinet unit; no separate outdoor heat pump.
Integrated controlsThe controls form part of the unit and are matched to the system.
Planned connectionsOutdoor/exhaust air, power, condensate and other project interfaces remain necessary.
Understanding the system
From the unit
to the indoor environment.
A well-designed system brings together air treatment, temperature control, air distribution and controls.
Treat the air
Required airflow rates and filter specifications are determined by the intended use and hygiene concept.
Control temperature
The integrated heat pump is part of the thermal system concept. The required capacity is determined for each project.
Distribute the air
Supply air outlets and air routes deliver treated air to its intended location. Their arrangement must suit the use of the room.
Coordinate operation
Operating modes and controls are coordinated with airflow rates, room use and the planned pressure concept.
Installation arrangement
Think ahead
from the floor plan.
The vertical arrangement requires a suitable footprint and a coordinated delivery route. Alongside the unit, air routing and the clearances needed for maintenance and operation must be planned.
The exact arrangement depends on the building project. Unit configuration, pipe and duct routes and service areas are agreed before installation.
A closer look at the product family
Construction and everyday operation.
From several perspectives.
Open unit casing showing the internal layout.
The illustrations show different configuration examples. Equipment and layout are defined for each project. Open images to enlarge.
Interfaces
What needs to be agreed
before installation.
Reliable planning considers the complete connection between the unit, building and operating room.
Air routing and external connections
Supply air, extract air, outdoor air and exhaust air are routed according to the system concept. Duct sizes, routes and connection points follow from the design.
Heating and cooling supply
The heat pump is integrated into the cabinet unit. A separate outdoor heat pump unit is not required. This does not remove the need to plan the remaining external and building connections.
Power, condensate and controls
Power supply, condensate drainage and control interfaces are defined for the selected configuration and coordinated with the relevant trades.
Acoustics and building integration
The unit’s position, air routes and integration into the building affect its operation. The relevant requirements are considered as part of the project.
Maintenance & operation
Accessible by design.
Built for long-term operation.
Maintenance begins with access planning. Filters, test points and components requiring maintenance must remain accessible after installation.
Maintain access
Keep service areas and inspection openings clear and usable after fit-out is complete.
Plan maintenance
Scope and intervals are determined by the system, its use and applicable operating requirements.
Check functions
Airflow rates and relevant system functions are checked and documented during commissioning.
Coordinate service
For maintenance and service, please use our existing online service portal.
Technical arrangement
What lies
behind the front.
The engineering views show how the unit sections work together – from the air paths to the integrated heat pump equipment.
RA3 5000 S design example, dated 10 November 2025.
Internal layout
Design example from the RA5000 product family. Equipment and connections are defined for each project.
The same design with closed front panels and side connections.
Closed front
Design example from the RA5000 product family. Equipment and connections are defined for each project.
Integrated heat pump.
The detail view shows the heat pump assembly. Together with the controls, it is positioned in the lower section of the illustrated unit.
These views explain the operating principle. The design shown is an example configuration; connection positions, equipment and dimensions are agreed for the current project.
Technical detail from the RA3-5000-S engineering archive.
Open views to enlarge. These drawings are not binding current dimensional or installation documents.
Preparing your project
The right configuration
starts with your requirements.
For an initial discussion, a floor plan, intended room use, available plant space and planned air and pipe routes are helpful. For refurbishment projects, existing installations and possible installation times are also relevant.
Airflow rate, dimensions, capacity and filter specifications are determined for the project. The corresponding technical documentation then forms the basis for implementation and coordination.
Discuss your project with usSupply air outlets, LED lighting & operating room ceilings →
From a single source
In-house development.
In-house controls.
In-house software.
For all our systems, we develop the equipment and controls ourselves and write the software in-house. This allows us to tailor airflow rates, temperature control and operating modes to each system concept.
Controls
We develop the controls to suit the system, connecting measurements and setpoints with coordinated operating sequences.
Software
Software is developed in-house. Operation and operating modes are tailored to each system concept.