HVAC Technician

QUALIFICATIONS:

1. High School Diploma or its equivalency.
2. Ability to perform vigorous work in all types of weather.
3. Demonstrate aptitude or competence for assigned responsibilities.
4. Such alternative to the above qualifications as the Board may fmd appropriate and acceptable.

SKILLS AND KNOWLEDGE REQUIRED:

The incumbent must be able to read and write; is required to read blueprints and instruction manuals, have knowledge of high and low pressure boiler operation and repairs for safe operation. The incumbent must have knowledge of air condition systems on chillers, air handlers, air balance, and make repairs on these systems. Independently determines the nature of the trouble and extent of required repairs. Judges the impact that specific repairs may have related integral devices, makes further tests, adjustments, alignments to ensure that the repaired equipment and related integral devices are aligned and functioning properly.

REPORTS TO: Maintenance Supervisor

TERM OF EMPLOYMENT: 12 months; 7:30 a.m. - 4:30 p.m. (Overtime pay or compensatory time after regular hours of work performed with approval of Maintenance Supervisor)

JOB GOAL: To help maintain the physical school plant in a condition of operating excellence so that full educational use of it may be made at all times.

RESPONSIBILITIES:

1. Operates, maintains and repairs two high pressure 400 HP fire tube boilers to produce and maintain steam at constant pressure. Operates and repairs auxiliary equipment such as vacuum pumps, fuel oil pumps, gas regulators, air compressors, refrigerated dryers, feed water pumps, deaerator tank, draft fans, control air compressors, feed water regulators, pressure controls and safety controls.
2. The incumbent makes extensive repairs to the above such as electrodes, solenoids, switches, pressure, thermostats, and rheostats. Repairs and replaces water regulators, oil and air supplies and controls, alarms, safety devices and blower motors.
3. When repairs are completed, set, adjusts, and test the after inspection, makes repairs to the refractory and other needed repairs to bring the boilers up to safety standards.
4. Makes hydrostatic tests to ensure stability of the boilers, then places the boiler back in service. Blows down boilers each shift or as proper amount of phosphates, caustic, tanning to maintain proper readings.
5. Is also responsible for keeping all equipment areas clean. Performs preventive maintenance, repairs on equipment and records inspections and repairs that were performed as required by the TCPS preventive Maintenance Program.
6. Operates one 350 ton air conditioning chiller unit and provide maintenance as required. Checks temperature sensing points and adjusts control; starts, regulates, stops air handling equipment, resets temperature controls and steam spray valves for humidity controls; logs gauge readings; test water in cooling tower and record results of water condition tests.
7. This includes air handlers which consist of a chill water coil, a heating coil, humidifier and numerous fans and electric motors ranging from one horsepower to 30 horsepower, reheat water convertors, chill water pumps, condenser water pumps and condenser water tower and fan.
8. Inspects filters in the air handlers and replaces when necessary. This is accomplished by manometer which shows the pressure drop on each side of the filters, also checks all fan belts for use of aexcessive wear, alignment, proper tension and replaces when necessary.
9. Adjusts dampers both manual and pneumatic to accomplish the proper mixing of outside fresh air and return M. Checks alignment of large air handler fans, shafts and bearings, also balances fans, shafts and thermostat and pneumatic three-way mixing valve.
10. Dismantles, repairs and reassembles pumps, impellors and compressors, fits connecting rods, crank shafts, piston rings, bearing and bushings, overhauls valves, replaces gaskets, springs, floats, diaphragms, seals, couplings and align motors. Is responsible for testing closed chill water system, reheat water system, condenser system and tower water system. Adds proper chemicals to maintain a clean and corrosion free system.
11. Maintains and repairs all steam lines, both high and low pressure, installs, and modifies, repai s new and existing high pressures piping systems and equipment such as steam heating, expansion tanks, condensate pumps, circulating pumps, and radiators. Overhauls steam cooker heaters, dishwashers, pressure reducing valves, steam traps, steam strainers, pneumatic steam valves, electrically operated valves, hot water mixing station, return water pumps, and hot water heating systems.
12. Responsible for maintaining neat appearance of the boiler room by keeping floors clean, all equipment surfaces, clean painted as well as all the auxiliary equipment in boiler rooms.
13. Maintains graphs and charts on fuel and water converted to steam. Responsible for recording pressure on liquid oxygen station. Records LP gas tank readings. Reports the need of gas and fuel to supervisor.
14. Miscellaneous duties and call-backs. The incumbent is subject to be called back to duty in case of emergencies related to buildings, utilities, or equipment of units. The work involved in these emergency situations may be work in the trades of electrical, plumbing, heating and air conditioning.Receives oral and/or written work orders, building plans and blueprints from supervisor. Incumbent determines the type of materials, tools to complete assignments and makes substitutes of such on his own initiative. Supervisor checks incumbent's overall completed work to ensure that the finished product meets instructions, established policies and practices of the trade. Supervisor is available for emergency type problems~nsounter~d.Physical effort is expended in continually standing, walking, stooping, bending, kneeling, climbing and working in small or cramped quarters. Frequently carries, lifts, pulls or pushes parts and equipment weighing up to and at times beyond 50 pounds. Work is sometimes on ladders and/or scaffolds which requires incumbent to work in opening of valves, overhead in climbing and working in prone or stooped position, working inside boilers, subject to ash and dust conditions.                  WORKING CONDITIONS:EVALUATION: Performance of this job will be evaluated twice a year in accordance with provisions of the Board policy on Evaluation of Classified Personnel.
15. Subject to heat hazards or boiler bursts, scaling water and steam bums, flare back of combustion flames, electrical shock, toxic amounts of gas fumes and caustic or other chemical burns.

16. Physical effort is expended in continually standing, walking, stooping, bending, kneeling, climbing and working in small or cramped quarters. Frequently carries, lifts, pulls or pushes parts and equipment weighing up to and at times beyond 50 pounds. Work is sometimes on ladders and/or scaffolds which requires incumbent to work in opening of valves, overhead in climbing and working in prone or stooped position, working inside boilers, subject to ash and dust conditions.

17. Receives oral and/or written work orders, building plans and blueprints from supervisor. Incumbent determines the type of materials, tools to complete assignments and makes substitutes of such on his own initiative. Supervisor checks incumbent's overall completed work to ensure that the finished product meets instructions, established policies and practices of the trade. Supervisor is available for emergency type problems~nsounter~d.

     

    PHYSICAL EFFORT:

SUPERVISION AND GUIDANCE RECEIVED: