Hardware and equipment for HVAC applications for buildings, namely, HVAC units; Apparatus for energy exchange, namely, heat and humidity exchangers not being parts of machines; Lighting apparatus, namely, lighting installations and lighting fixtures; LED light controls; Heating apparatus, namely, heating installations for buildings; Steam generating apparatus, namely, steam generators; Air conditioning installations for buildings; Refrigerating machines and components thereof; Air conditioning, air cooling and ventilation apparatus and instruments and structural components thereof; Economizers, namely, devices for warming feed water in heating boilers; Sanitizing apparatus using ultraviolet light for sanitizing air which can then sanitize other surfaces not for medical purposes; Valves for air conditioners; Dampers, namely, control devices used in air ducts to regulate the flow of air; Air diffusers being parts of refrigerators; Heat registers; Apparatus and systems which are composed of those apparatus for using, storing and transformation of primary energy, namely, solar collectors and latent heat accumulators

Construction and installation of energy usage management equipment, namely, equipment for managing electric power consumption by third parties, and for controlling the use of power consuming devices and appliances for purposes of reducing electrical consumption; Installation, maintenance, and repair of heating, ventilating, air conditioning, refrigeration, lighting, fire alarm, and security systems for industrial, commercial, and governmental facilities; Construction and installation of equipment, namely, direct digital controls and sensors for electronically gathering, analyzing and formatting data to monitor and control energy usage by controlling energy consuming appliances; Installation, maintenance and repair of environmental control systems and apparatus primarily using solar energy, renewable energy resources and rainwater, solar energy control systems, lighting control systems and security systems for residential and commercial use; Building construction; Repair, maintenance and installation of building heating, air conditioning, and ventilation and lighting apparatus used in the field of building technology and building automation; Repair, maintenance and installation of computer hardware used in the field of building technology; Installation of environmentally compliant heating, air conditioning, and lighting equipment; Construction and repair of restaurants; Building construction and repair; Installation, maintenance and repair services of commercial cooking equipment