1
Refrigerant; cleaning chemicals
4
Oils and lubricants
7
Compressors, electric motors for machines, and engines; generators, standby generators; and parts of the foregoing
9
Thermostats and controls; monitors; sensors; smart thermostats; building automation systems; software; software for managing HVAC and building automation systems; climate control systems; batteries; and parts of the foregoing; Photovoltaic solar panels for the production of electricity
11
Heating and cooling apparatus; air conditioners; heat pumps; heat exchangers; furnaces; air handlers; climate control systems; packaged heating and cooling systems; Chillers; rooftop units; variable refrigerant flow systems; Air purifiers; ventilators; humidifiers; dehumidifiers; water heaters; refrigeration units; lighting equipment; and parts of the foregoing
36
Financing services for heating, ventilating, and air conditioning systems; arranging of rebates and incentives for energy-efficient HVAC systems
37
Installation, maintenance, and repair of heating, ventilating, air conditioning, lighting, and building automation systems; HVAC system inspections; HVAC system cleaning; HVAC system tune-ups
40
Rental of heating, ventilating, and air conditioning apparatus; rental of chillers; rental of air handlers; provision of temporary HVAC equipment for events
41
Training services for technicians in the field of HVAC systems; providing online information and resources for the maintenance and repair of HVAC systems
42
Design and development of HVAC systems; energy efficiency consulting services; integration of building automation systems; online non-downloadable software for managing HVAC and building automation systems; Design of solar photovoltaic systems; and Technical planning of photovoltaic/solar thermal hybrid installations