The following Product Service Codes (PSCs) are commonly associated with NAICS 238220, Plumbing, Heating, and Air-Conditioning Contractors

PSC 4120 Air Conditioning Equipment

Products
Federal Category 4.3: Facilities & Construction Facility Related Materials

Includes
Store Type Units; Window and Room Type Units; Marine, and Vehicular Air Conditioning Units; Air Conditioning Plants and Systems.

Excludes
Air Conditioning Components (FSC 4130, or as otherwise specifically prescribed by the indexes and structure of the FSC).

Notes
This class includes only complete air conditioning equipment, systems, and plants. Also included are specially designed nonoperating accessories such as a window panel used with a window type air conditioning unit to facilitate mounting. Excluded from this class are operating components, assemblies, parts, attachments, or accessories for use in or on air conditioning equipment, which are to be classified in FSC 4130, or as otherwise specifically prescribed by the indexes and structure of the FSC.

Possible NAICS Codes
333415 – Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
238220 – Plumbing, Heating, and Air-Conditioning Contractors
423730 – Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
423710 – Hardware Merchant Wholesalers
335220 – Major Household Appliance Manufacturing
444140 – Hardware Retailers
334290 – Other Communications Equipment Manufacturing
333413 – Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
221330 – Steam and Air-Conditioning Supply
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use

PSC N041 Installation of Equipment—Refrigeration, Air Conditioning, and Air Circulating Equipment

Services

PSC N045 Installation of Equipment—Plumbing, Heating, and Waste Disposal Equipment

Services

PSC 4510 Plumbing Fixtures and Accessories

Products
Federal Category 4.3: Facilities & Construction Facility Related Materials

PSC DE01 IT and Telecom—End User: Help Desk; Tier1-2, Workspace, Print, Productivity Tools (Labor)

Services
Federal Category 1.5: Information Technology and Telecommunications End User

Description
Support services for end user client computing including Tier 1 and 2 help/service desk, deskside support, adds/moves/changes, workspace technical support, audio/video (A/V, VTC) conferencing, and printer support. A/V and VTC includes support services typically used in conference rooms and dedicated telepresence rooms to enable workforce communications. Printer support includes Managed Print Services (MPS) for multifunction printers (print, scan, fax, copy).

Excludes
Mobile device support.

Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
541519 – Other Computer Related Services
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541330 – Engineering Services
334111 – Electronic Computer Manufacturing
513210 – Software Publishers
238290 – Other Building Equipment Contractors
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
541512 – Computer Systems Design Services