Air-conditioning installations; Air-conditioning, air cooling and ventilation apparatus and instruments; Energy recovery ventilators; Air to air energy recovery ventilation units; Energy recovery ventilation equipment for residential, commercial and industrial buildings, namely, air-to-air heat exchangers not being parts of machines; Energy recovery ventilation equipment, namely, ventilating exhaust fans, for residential, commercial and industrial buildings; HVAC equipment and accessories, namely, heating and cooling equipment comprising heat recovery ventilator (HRV) units, dedicated outdoor air system (DOAS) units cooling equipment comprising split systems comprised of matched condensing unit and evaporator, condensing units, heat pumps, and rooftop air handlers

Air-conditioning installations; Air-conditioning, air cooling and ventilation apparatus and instruments; Energy recovery ventilators; Air to air energy recovery ventilation equipment; Energy recovery ventilation equipment for residential, commercial and industrial buildings, namely, air-to-air heat exchangers not being parts of machines; Energy recovery ventilation equipment, namely, ventilating exhaust fans, for residential, commercial and industrial buildings; HVAC equipment and accessories, namely, heating and cooling equipment comprising heat recovery ventilators (HRV) systems, dedicated outdoor air systems (DOAS), cooling equipment comprising split systems, condensing units, heat pumps, and rooftop air handlers