Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Occupations | Installs, services, and repairs environmental control systems in residences, department stores, office buildings, and commercial establishments, utilizing knowledge of refrigeration theory, pipefitting, and structural layout: Mounts compressor and condenser units on platform or floor, using handtools, following blueprints or engineering specifications. Fabricates, assembles, and installs ductwork and chassis parts, using portable metalworking tools and welding equipment [DUCT INSTALLER (construction; mfd. bldgs.) 869.664-014]. Installs evaporator unit in chassis or in air duct system, using handtools. Cuts and bends tubing to correct length and shape, using cutting and bending equipment and tools. Cuts and threads pipe, using machine-threading or hand-threading equipment. Joins tubing or pipe to various refrigerating units by means of sleeves, couplings, or unions, and solders joints, using torch, forming complete circuit for refrigerant [PIPE FITTER (construction) 862.281-018]. Installs expansion and discharge valves in circuit. Connects motors, compressors, temperature controls, humidity controls, and circulating-ventilation fans to control panels and connects control panels to power source [ELECTRICIAN (construction) 824.261-010]. Installs air and water filters in completed installation. Injects small amount of refrigerant into compressor to test systems, and adds freon gas to build up prescribed operating pressure. Observes pressure and vacuum gauges and adjusts controls to ensure efficient operation. Tests joints and connections for gas leaks, using gauges or soap-and-water solution. Wraps pipes in insulation batting and secures them in place with cement or wire bands. Replaces defective breaker controls, thermostats, switches, fuses, and electrical wiring to repair installed units, using electrician's handtools and test equipment. May install, repair, and service air-conditioners, ranging from fifteen to twenty tons cooling capacity, in warehouses and factory buildings and be designated Air-Conditioning Mechanic, Industrial (any industry). (references) |
| Installs and repairs automotive air-conditioning units: Bolts compressor to engine block and installs driving pulley on front end of crankshaft. Places fan belt on pulleys, adjusts tension, and tightens bolts. Bolts evaporator unit under dashboard or in trunk. Welds or bolts mounting brackets to automobile frame. Drills holes through interior panels, threads hoses through holes and connects hoses to compressor, evaporator, and cool-air outlet. Fills compressor with refrigerant and starts unit. Measures compressor pressure to determine efficiency of compressor, using gauge. Listens to operating unit for indications of malfunction. Removes faulty units from vehicles, disassembles them, and replaces worn and broken parts and fluid in unit. Makes electrical connections as required. May specialize in installation of automotive air-conditioning units and be designated Automotive Air-Conditioner Installer (automotive ser.). (references) | |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)41 49 52 2D 43 4F 4E 44 49 54 49 4F 4E 49 4E 47 4D 45 43 48 41 4E 49 43 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000001 01001001 01010010 00101101 01000011 01001111 01001110 01000100 01001001 01010100 01001001 01001111 01001110 01001001 01001110 01000111 00100000 01001101 01000101 01000011 01001000 01000001 01001110 01001001 01000011 |
HTML Code (1990) (references)A I R - C O N D I T I O N I N G   M E C H A N I C |
ISO 10646 (1991-1993) (references)0041 0049 0052 002D 0043 004F 004E 0044 0049 0054 0049 004F 004E 0049 004E 0047 004D 0045 0043 0048 0041 004E 0049 0043 |
Encryption (beginner's substitution cypher): (references)3543521537494838435443494843484124739374235484337 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
