HVAC Mechanic II

Overview

General Definition of Work The HVAC Mechanic II, under general supervision, performs skill-based work with limited decision-making discretion related to the full range of duties as assigned including troubleshooting and resolving malfunctions. The HVAC Mechanic II is responsible for repair, evaluation, and operation of all HVAC equipment and systems in the assigned region including the installation, repair, and maintenance of commercial heating, ventilation, and air conditioning equipment and systems, energy management systems and HVAC related electrical systems.

The scope covers commercial mechanical, electrical and digital electronic HVAC. Employee performs district-level work to carry out Board of Education policies under the direction of the maintenance operations supervisor or HVAC assistant supervisor.

To perform this job successfully, an individual must be able to perform each essential function satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Hourly NC 12/Full-time, 12 months

Maintenance Operations Supervisor

The normal place of work is on the premises used by Charlotte-Mecklenburg Schools. Charlotte-Mecklenburg Schools reserves the right to require you to work at such other place(s) as it may reasonably require from time to time.

• Adhere to all state, federal, and local laws, policies, and procedures
• Install, diagnose, inspect, repair, maintain and service a wide variety of commercial heating, ventilation and air conditioning equipment and systems for up to 15 schools, including:
  • Basic repairs and maintenance on air/water cooled chillers of various sizes.
  • Building Automation Systems (BAS) featuring direct digital controls (DDC). These systems require knowledge and understanding of electronics, low voltage wiring, digital actuators, schematics, and various digital electronic components
  • Steam and hot water boilers, condensing/cast iron boilers, pulse boilers, hot water distribution systems and controls
  • Hydronic systems and their components; valves, pumps, piping and circuit setters
  • Commercial rooftop HVAC package systems from 5 to 40 tons
  • Split A/C (ducted and ductless) units from 1 to 5 tons
  • Air handling units, fan coil units, unit ventilators, heat pumps and electric duct heaters
  • Motors, compressors, contractors, circuit board transformers, valve actuators, blower assemblies, etc.
  • Wall hung heat pumps, water source heat pumps and systems
  • Cooling towers and associated pumps, piping, and equipment
  • Low pressure air compressors
• Work with and in the presence of hazardous materials including asbestos and lead based paints
• Operate, troubleshoot and repair complex HVAC Digital Controls/BAS
• Repair and maintain low-pressure hot water systems, boilers, chillers, rooftops units, split systems, gas & electric wall heaters, ventilation units and air conditioning units
• Determine and schedule preventive maintenance schedule and perform preventive maintenance
• Replace fans, belts, motors, gaskets, filters, compressors and pumps; lubricate parts
• Adjust and install switches, gauges, thermostats, valves, tubing transformers, pressure regulators, controllers, and other parts as needed
• Cut and thread pipe; make pipe and electrical connections
• Locate and repair leaks in heat pumps, A/C units and air driers
• Make electrical repairs related to air conditioning, heating and ventilation equipment
• Contact outside mechanical contractors, internal engineering staff, school administrators, and other CMS staff on a daily basis regarding HVAC issues
• Determine requirements for parts, materials, supplies, tools and equipment; establish cost of repairs and equipment replacement; check and test new equipment.
• Operate specialized machinery, equipment and tools utilized in the repair and maintenance of heating, ventilation and air conditioning
• Maintain tools, equipment and supplies in a safe and orderly condition
• Maintain routine records and purchase parts as necessary
• Perform related work as assigned or required

• Knowledge of North Carolina State Code
• Knowledge of standard practices of the HVAC trade and the theory and operation of HVAC systems
• Knowledge of approved electrical methods, practices, code requirements and safety standards
• Knowledge of applicable building codes, ordinances and regulations of State and local authorities pertaining to HVAC
• Knowledge of occupational hazards and safety precautions of the trade, including safe practices and procedures of the trade
• Knowledge of procedure and proper use of tools and equipment used in maintenance and repair of refrigeration, heating, ventilation and air conditioning equipment
• Knowledge of basic record-keeping techniques
• Knowledge of proper refrigerant handling
• Knowledge of materials, methods and tools used in the operation and repair of HVAC…