42 Engineering services; information technology (IT) consultancy services; scientific research and design; engineering services, namely, technical planning for the development, and system design of, and engineering services for use in conjunction with construction of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and cooling installations, and parts therefor; engineering services, namely, technical planning for the monitoring, maintenance optimisation, control and regulation of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and cooling installations, and parts therefor; design and development of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and refrigerating installations, and parts therefor; design and development of devices for monitoring, maintenance optimisation, control and regulation of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and cooling installations, and parts therefor; development and programming of hardware for others; development of computer hardware and software for monitoring, maintenance optimisation, control and regulation of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and cooling installations; software development, computer programming and implementation; design of computer software; maintenance and updating of computer software; scientific services, namely, scientific analysis and research in the field of internal system optimization and quality optimization of air conditioning, heating, ventilating and refrigerating installations and apparatus; recording, evaluation, processing and providing of engineering information and data in relation to the monitoring, maintenance optimisation, control and regulation of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and cooling installations; recording, evaluation and processing of engineering technical information and data in relation to the maintenance, servicing and repair of heating, ventilating, air conditioning and refrigerating apparatus and installations, in particular heat pump installations and cooling installations; technical consultancy in the field of engineering, in connection with technical reliability, monitoring of technical installations, and monitoring and maintenance optimization of process cooling systems, in particular in relation to heating, ventilating, air conditioning and refrigerating apparatus and installations; consultancy and information in relation to the aforesaid services