Job Summary
Journeyman level work in the installation, maintenance and repair of refrigeration, air
conditioning, automatic plans and automatic temperature control equipment.
Essential Functions
•An employee in these trades analyzes, tests, adjusts and repairs automatic, oil and gas-
fired boiler controls. Work involves checking readings on meters and gauges and
adjusting equipment controls in order to verify readings under specified operating
conditions. Significant to the work is recording and analyzing equipment temperature,
hours of operation, fuel consumption and temperature to diagnose equipment
malfunctions.
•Repairs, installs, and maintains gas and oil burners and controls, tanks, pressure vessels,
and related industrial and residential equipment gauges and valves, including pressure,
sequential boiler lead-lag and safety valves and gauges.
•Repairs, adjusts and replaces compressors, direct current and alternating current motors,
receivers and condensers; adjusts or changes belts; replaces gaskets, hinges, and
hardware; changes units with refrigerant and oil; may move equipment for replacement to
other locations where assigned.
•Installs and adjusts expansion valves, thermostats, relays, sealed units, electric motors
and pressure controls; installs evaporators, and copper tubing; sweats copper joints; uses
gauges, wheel pullers and other small hand tools common to the trade.
•Operates large central air conditioning and refrigeration systems, adjusting controls to
meet changing conditions; inspects fans, pumps and compressors for proper operation;
examines refrigerant lines for leaks; maintains oil and refrigerant pressures on suction and
discharge; adjusts temperature and humidity controls;
•Checks readings on meters and gauges; adjusts equipment controls in order to verify
readings under specified operating conditions; records data such as equipment
temperature, hours of operation, fuel consumption, and temperature in diagnosing
equipment malfunctions.
•Tests, adjusts, installs, and repairs equipment following blueprints, schematic drawings,
and verbal and written instructions.
•Installs, repairs, inspects and calibrates various industrial, commercial and residential type
thermostatic controls used to regulate school district air conditioning, refrigeration and
heating systems.
•Calibrates pressure activated thermostats used on H.V.A.C. equipment using trades test
fixtures and tools; tests and adjusts thermostatic controls to insure they operate according
to design specifications; repairs and installs temperature control equipment according to
specifications.
•Reads thermometers and temperature-control recording charts, flow-meters and gauges to
determine when temperature or humidity conditions are not within specified ranges;
performs equipment repairs and adjustment when indicated.
•May estimate, order and transport necessary materials to complete work order(s) at
assigned location.
•Oversees the work of "B" Mechanics and trainees in the trade.
Other Functions
•Performs incidental work as required. Minimum Requirements
•Education equivalent to the completion of the twelfth school grade.
•One year of full-time, paid, journeyman level experience in the appropriate trade area.
Knowledge, Skills and Abilities
•Considerable knowledge of the principles and theories governing the operation of air-
conditioning and refrigeration equipment, automatic temperature controls, and automatic
plants.
•Considerable knowledge of the practices, materials, methods and tools used in the repair
and maintenance of air-conditioning and refrigeration equipment, automatic temperature
controls and automatic plants.
•Considerable knowledge of the principles of electricity as they apply to the repair and
maintenance of air-conditioning and refrigeration equipment, automatic temperature
controls.
•Knowledge of the operation of electronic controls and motors associates with the operation
of heating and cooling systems, automatic plants and automatic temperature controls.
•Considerable knowledge of the occupational hazards and safety precautions of the trades.
•Skill in the care and use of tools and equipment used to install, repair, and calibrate above
equipment and controls.
•Ability to interpret and work from diagrams.
•Ability to prepare records and reports of work performed.
•Ability to diagnose and repair equipment malfunctions.
•Ability to interpret and work from blueprints, schematic drawings and specifications.
•Ability to diagnose defects in and repair a variety of controls associated with H.V.A.C.
equipment.
•Ability to establish and maintain effective working relationships with superior and
associates.
Disclaimer
The above statements are intended to describe the general nature and level of work being
performed by people assigned to this classification. This is not an exhaustive list of all the
responsibilities, duties, and skills required of personnel so classified.
Nondiscrimination
The School District of Philadelphia provides to all persons equal access to all categories of
employment in this District, regardless of race, color, age, creed, religion, sex, sexual
orientation, ancestry, national origin or handicap/disability, gender identity, or genetic
information. Please refer to Board Policy 104 for further information regarding the District's
commitment to Nondiscrimination in Employment Practices.
Certificates/Licenses
Possession of a proper class license valid to operate a motor vehicle in the Commonwealth
of Pennsylvania prior to appointment and during tenure of appointment.