23 70 00 Central HVAC equipment
23 81 29 Variable refrigerant flow
23 82 16 Air coils
23 62 00 Packaged compressor and condensor units
23 81 26 Split-system air-conditioners
23 81 46 Water source unitary heat pumps
23 74 00 Packaged outdoor HVAC equipment
23 81 43 Air-source unitary heat pumps
23 54 16.13 Gas fired furnace
23 73 00 Indoor central-station air-handling unit