The HVAC Technician (HVT) works from ladders, scaffolding and platforms, and where parts of the systems worked on are hard to reach places. The works requires considerable standing, climbing, stooping, bending, stretching and working in cramped, awkward positions. Frequently lists, carries, and set up items weighting up to 50 pounds. Occasionally may lifts items weighting over 50 pounds with assistance or use of materials handling equipment.
The HVT shall receive assignments in the form of work orders oral instructions, or follows established maintenance schedules, which identify the equipment to be repaired and the nature of work to be accomplished to install, operate, inspect, maintain and, repairs, heating, ventilating, air-conditioning, and refrigeration systems station wide. Systems include a central steam distribution system, diesel, natural gas, propane, and kerosene fired space heating systems, general and special purpose air conditioning systems, ice machines, refrigerators, and freezers, (household type and commercial walk-in), display cases, water coolers, ice cream cabinets, beverage dispensers, beer coolers, salad bars.
The HVT shall perform a full range of work involved in the repair, overhaul, maintenance and servicing of industrial and domestic reach-in and walk-in refrigerators; air-conditioning units and systems; ventilating systems, freezers; water coolers; dehumidifiers and related equipment; and cold storage and cold room equipment:
Diagnose and locate malfunctions. Check heating, ventilating refrigeration, and air conditioning systems ensure that systems are operating properly. Read and calibrate gauges, thermostats and thermometers. Check expansion coils for excessive ice formation, listens for unusual noises. Check oil refrigerant level in systems and checks piping and fittings for refrigerant leaks. Check air filters for cleanliness, operation of fans, dampers, louvers, and control of air movement. Test and treat water in closed heating and cooling systems and water-cooled condensers to control deposit of soil and algae. Install maintain, replace and/or adjust as necessary compressors, pumps, blowers, fans, copper tubing, heat exchange equipment, various types of valves, filters, and dryers, pressures control devices, temperature, humidity, and air control devices of both electrical and pneumatic types. Repair troubleshoots, and install large complicated heating units and systems including oil and gas fired low and higher-pressure boilers, steam production and distribution plans and turbine and generator power plants. Installs new heating plants, boilers, furnaces, piping, pumps and controls, and connects new equipment to existing facilities. Install, maintain and repair steam traps, pressure reducing valves, temperature controlling valves, heat exchangers, steam heating systems. Secure and connect to piping systems, steam fuel, and fixtures such as radiation, oil or natural gas fired heating units and heaters, risers, flexible branches, expansion joints, pressure regulators, pumps and control valves. Joins, seals, and tests systems and equipment for proper pressure and leak free joints. Calibrates and repairs pneumatic control systems related to steam or hot water heating systems. Cleans and repairs heating exchangers and heating coils.
The heating and power units include a variety of complex auxiliary components, automatic controls, circulating systems, super-heaters, pre-heaters economizers, etc.
Operations – The HVACCS shall work alone or with other workers to perform simple or complex tasks while following appropriate and safe procedures. Responsible for reporting to the workload manager all discrepancies or unsatisfactory performance of equipment as well as unsafe conditions. Must be familiar and comply with all safety regulations. Must wear appropriate safety equipment. Visual and sensory perception along with hand-eye coordination is required to operate equipment, detect deficiencies and make repairs; diagnose problems; and make installment of devices, equipment, parts, etc. The HVT shall have a good familiarity of NAVFAC SW Safety and Health Requirement manual, instructions, agency equipment regulations and directives. Guidelines will include a variety of Federal, Department of Defense, and Department of Navy, Commander Naval Facilities Engineering Command Southwest publications, manuals, directives, standards, policies and procedures. Published guidance will be provided by the Government as needed.
Processing – The HVT shall receive assignment from the workload manager in the form of oral or written instruction (work order) to perform a variety of tasks. The HVT shall work alone or with other workers to perform simple or complex tasks while following appropriate and safe procedures.
Housekeeping – The HVT shall ensure all designated working areas are maintained in an orderly manner and continuously maintained free of trash and debris. At the end of each day, the general work areas shall be swept, supplies, materials, tools, and equipment shall be pick-up and stored, and the municipal trash containers will be emptied.
Technical Support – The HVT shall receive work assignments through oral instructions provided by the workload manager. Specific assignments of work are provided with detailed instructions on all but the repetitive tasks. Work is checked during progress and upon completion for compliance with instructions, adherence to established practices and standards, and overall acceptability of work. A journeyman-level employee normally checks daily assignments. A Government employee gives advice on unusual problems and checks to see if completed work meets the requirement.
Meetings/Conferences – The HVT shall participate in meetings with contractors, agencies, clients, and team members when required to do so.
Briefings – The HVT shall participate in briefings when required to do so.
Updates – The HVT shall provide monthly status report that summarizes the work efforts and accomplishments performed.
Personal Protective Equipment (PPE) – The HVT shall comply with all PPE requirements of the Navy.
Experience Requirements – The work requires knowledge of complex heating systems; steam production and distribution systems; and the systems that supply steam to propel turbines and generators that provide power. Must be able to trace and locate equipment failure and perform complex repairs on large expensive components and equipment. Must have a thorough knowledge of refrigeration and air conditioning practices including understanding pneumatic, electronic, and electrical control circuits.
Must have full working knowledge of various types of ventilating systems including steam, electrical gas and oil-fired types. Read blueprints, specifications or sketches. Solves problems using arithmetic or practical mathematics. Uses test instruments related to the trade.
Must be familiar with refrigerant liquids, their characteristic, proper operating pressures and temperatures at either saturated for super heated conditions and safe handling. Must know brazing and soldering techniques. Must be able to operate assigned motor vehicle on the job (pick-up truck). Must have knowledge of environmental laws and regulations and must be certified on Freon recovery equipment. The work requires refrigeration cycle knowledge in order to diagnose a variety of large complex commercial and industrial air-conditioning systems and to make extensive repairs quickly so that inoperative time can be kept to a minimum.
Must be able to repair or build major units (e.g. pumps, impellers, compressors, chillers, evaporators, etc.) and place them back in the system and fine tune the components to achieve the proper balance. Must have the ability to interpret and apply building plans, blueprints, diagrams and engineering drawings and uses formulas. Must have skills in the use of hand tools and a wide variety of trade equipment.
All Candidates must have/be:
a) Valid state driver’s license in the state the work is being performed.
b) Strong communication skills in the English language, both written and oral.
c) U.S. citizenship or resident alien. Proof of US Citizenship or resident alien card will be required.
d) OSHA 10 - General Industry or Construction Certified before starting work.
e) Ability to perform regular and recurring field inspections, investigations, or surveys in which there is a considerable amount of walking, stooping, bending, and climbing.
f) Ability to perform work in an office setting, with occasional visits to construction sites. Work involves moderate risks of discomforts that require adherence to safety precautions.
g) Ability to acquire a Common Access Card (CAC).