The Oval, Office Building in Düsseldorf, Germany, 2021

Foto: Patrick NiemeyerSolutions: L-ROC Room AutomationHeating, Ventilation, Air Conditioning, Energy Data Acquisition, Integration of Weather Station

The new construction project "The Oval" was designed as a digital, sustainable and state-of-the-art office building. Equipped with LOYTEC's L-ROC room automation system, tenants can enjoy a flexible and energy-efficient office building that has already succeeded in winning awards.

The elegant curved window facades and landscaped courtyards chosen by the building's owner are a real eye-catcher, both inside and out. The implemented building automation solution - the innovative L-ROC room automation solution and the L-WEB building management system from LOYTEC - was also carefully selected.

Seven floors with over 13,500 m2 are available to tenants. In addition, there are two basement floors containing underground parking and a technical control center. The building automation was carried out completely by LOYTEC partner Otto Building Technologies GmbH. The plant automation was implemented via BACnet/IP and BACnet MS/TP, and included heating systems (district heating), ventilation systems, refrigeration systems, underground car park smoke extraction, and fire dampers.

At first, the building was prepared for the basic fit-out according to a detailed design. In a further step, the tenants' wishes will be taken into account and implemented in the tenant fit-out.

Room Automation via LOYTEC L-ROC Room Controller

Room automation was implemented with the innovative L-ROC Room Controller from LOYTEC. The L-ROC combines all trades and communication protocols in one controller for up to 16 segments, and also enables direct communication via BACnet/IP with the plant automation system.

Scope of Services Room Automation:

  • Lighting system via DALI bus system and L-DALI Multi-sensors
  • Shading via SMI bus system
  • Room climate control via heated chilled ceilings using 6-way valves via Modbus control as well as dew point sensors
  • Room control via L-STAT room control unit using Modbus
  • Energy data acquisition via L-MBUS20
  • Weather station (Thies) via Modbus, connected to the L-ROC Room Controller

Mr. Patrick Niemeyer, project manager at Otto Building Technologies, appreciates the following advantages of the L-ROC room automation solution: "LOYTEC's room automation in particular allows individual tenants maximum flexibility at the click of a mouse. Based on the segmentation, change requests can be adapted by the tenant directly and without any programming effort. In addition, the L-ROC Room Controller is an obvious choice with its variety of protocols, which cover all requirements regarding communication and expandability."


Thanks to L-ROC room automation from LOYTEC, the state-of-the-art office building "The Oval" offers an automation solution that delivers a high degree of flexibility as well as different comfort levels to building occupants. The building's outstanding digital infrastructure has already been awarded the WiredScore Platinum Certification and LEED Gold pre-certification is pending.

Foto: Patrick NiemeyerFoto: Patrick NiemeyerFoto: Patrick NiemeyerFoto: Patrick Niemeyer

Interesting Facts

Devices: L-ROC Room Controller, L-STAT Room Control Unit, L-DALI Lighting ControlL-SMI, L-WEB Building Management

Location Hans-Böckler-Straße 33, 40476 Düsseldorf, Germany
Number of Nodes 8 196 (Room Automation Datapoints)
Topology BACnet/IP, OPC, DALI, SMI, Modbus
Companies involved Contractor: GERCHGROUP Düsseldorf The Oval GmbH
Project Developer: GERCHGROUP AG
General Contractor: Ed. Züblin AG, Düsseldorf
Planning: INOVIS Ingenieure GmbH, Düsseldorf
Partner: Otto Building Technologies GmbH
Room Automation: LOYTEC electronics GmbH
LOYTEC Devices 43 x LROC-102 Room Controller
42 x LSMI-804 Standard Motor Interface
14 x LDALI-PLC4 Programmable DALI Controller
28 x LDALI-PWR4-U Power Supplies
204 x LDALI-MS2-BT Multi-sensors
450 x LSTAT-800-G3-L4 Room Control Units
42 x LPOW-2415A Power Supplies
14 x L-MBUS20 Level Converter
LOYTEC Tools LWEB-900 Building Management
L-STUDIO 3.0 Engineering Tool