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RA2000 / Ceiling void unit

RA2000
Ceiling void unit.

A space-saving configuration for integration above a suspended ceiling. With an outdoor heat pump and air routing tailored to the operating room.

Illustrative product view: RA2000 ceiling void unit

How the system works.

RA2000 connection view with retouched surroundings
Installation arrangement

Use the ceiling void. Keep the equipment accessible.

The installation view shows the suspended arrangement. Unit height, air routes and inspection access are planned together.

Installation photograph with retouched surroundings. Configuration and accessibility are project-specific.

Explore technical views ↓
A look inside

The technology.
Shown openly.

Select an area of the open unit view.

Open ZDG-2000 configuration with fan, coil section and connections – surroundings retouched

Fan section

The fan section is clearly visible in the open unit. Airflow performance is matched to the planned system.

Actual configuration from the company’s ZDG-2000 archive; surroundings retouched. Configuration example, not a binding current production drawing.

A closer look

Move air.
Transfer heat.

A second original perspective shows the fan and coil side by side.

Unretouched interior of the same documented unit.

Original detail: fan and coil in the open ZDG-2000 unit
Select to enlarge.
Understanding the installation in space

Mounted below the ceiling.
Accessible for service.

The actual installation view shows the space required and the accessible underside of the unit. In this view, the air path runs from back to front.

RA2000 installed below the ceiling with retouched surroundings
Illustrative air path: back → front

Installation photograph with retouched surroundings. Arrows illustrate direction; this is not a calculated airflow simulation. Inspection openings and maintenance areas are agreed for the configuration.

Original system design

Unit and air routes.
Within the room layout.

The actual project isometric drawing shows how a ceiling void unit and ductwork are integrated into room planning.

Edited extract from an actual project isometric drawing with ceiling void unit and air ducts
Original project example. Dimensions, routes and unit configuration apply to the project shown; not a binding current production or installation drawing.
Supporting documentation

The horizontal configuration.
Clearly documented.

Connection view based on RA2000 documentation dated 23 February 2026, with edited surroundings.

RA2000 presentation view with outdoor and supply air arrows; surroundings retouched
Documented configuration. Connection positions and maintenance areas are defined for each project.

Image and connection overview as PDF (German) ↓

What technical information does the PDF contain?

The image and connection overview shows connection positions and an installation view. Binding dimensions, connections and maintenance areas are agreed for your configuration.

Space for equipment.
Space for your operating room.

The floor plan, ceiling height and service access form the starting point for joint planning.

Discuss your project ↗
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.

Our own isometric system design with duct network – anonymised project example.
Our own isometric system design with duct network – anonymised project example.

Development

Space, air paths and installation conditions feed into the design. Planning and manufacturing work hand in hand.

General functional diagram: measurements and setpoints, controller, system
Functional diagram: measurements, controls and system working together.

Controls

We develop the controls to suit the system, connecting measurements and setpoints with coordinated operating sequences.

Actual Rentschler Air user interface from our archive
Our own user interface from the archive; configuration varies by system.

Software

Software is developed in-house. Operation and operating modes are tailored to each system concept.