This is a skilled journeyman craftsperson position that performs a variety of mechanical maintenance functions relating to heating/air conditioning/refrigeration systems and pipefitting. Responsibilities include equipment installation; repair to heating, ventilation and air conditioning equipment; installation/repair to fire suppression systems; installation/repair of vehicle exhaust systems; and maintenance of swimming pool piping; to include troubleshooting malfunctions and preventive maintenance on such equipment; refrigeration troubleshooting and repairs; and other mechanical related work as assigned. These duties include work of a journeyman level and tradesperson’s competence, physical capability, and mechanical and troubleshooting aptitude. Work is performed under the direct supervision of the Facilities Manager.
Examples of Duties:
- Thorough knowledge of the HVAC systems and mechanical principles that apply to their operation.
- Ability to analyze systems and problems with technical instruments such as; velometers, manometers, flow measuring hoods, pressure gauges, ammeters, voltmeters, vibration analyzers, etc. Ability to analyze problems, make necessary adjustments and corrections to dampers, valves and regulators.
- Ability to do teardown inspection, maintenance and repair of chillers including winter storage, acid cleaning of evaporator and condenser tubes, inspection of gear clearances and condition, change oil and refrigerants charge, etc.
- Ability to do spring startup of equipment including coil repair by soldering or welding, proper charging with refrigerants using gauges, and replacement of desiccant when needed. Ability to winterize HVAC coils and lines using proper antifreeze mix.
- Must be familiar with and be able to install, calibrate, adjust, repair, troubleshoot, etc. all types of pneumatic controls. Familiar with boiler controls and adjustments. Be able to respond to alarms.
- Ability to operate energy management systems, digital devices and frequency drives used in HVAC applications.
- Install, diagnose, maintain, adjust, modify and perform repair of heating, air conditioning and refrigeration systems by interpreting blueprints, manufacturer specifications, operations and maintenance manuals, written and oral instructions.
- Make initial settings and/or adjustments of systems to obtain required results.
- Troubleshoot, repair or calibrate, and maintain chillers, cooling towers, boilers, fans, starters, pneumatic and digital controls, air conditioning equipment, refrigeration equipment, etc.
- Charge, conserve, recover, and recycle chlorofluorocarbons (CFC) refrigeration equipment.
- Orders supplies, equipment and tools for the purpose of providing necessary information on the proper uses of the equipment.
- Prepares reports (e.g. work orders, EPA log, repair logs, time tracking, equipment history, etc.).
- Repairs heating/air conditioning systems and components, and obsolete equipment for the purpose of providing comfort within the facilities.
- Ability to troubleshoot, maintain, and repair pump and motor problems.
- Responds to emergency situations (e.g. heating, air conditioning and/or refrigeration systems) for the purpose of resolving immediate health and safety concerns.
- Maintains regular punctual and predictable attendance, works overtime and extra hours as required.
- Maintains Fire suppression systems through timely repairs, testing and system alterations to meet NFPA compliance.
- Maintains all City-owned facility-related compressed air piping, compressors and controls (typically high pressure @ 140-150 psi), and supports other City-owned process compressed air systems.
- Maintains the municipal garage truck wash support room and associated piping.
- Maintains all City-owned fuel dispensing systems.
- Maintains CO 2 piping used for the process of producing drinking water at the Water Treatment Plant.
- Repairs the Plymovent vehicle exhaust system in the City’s six fire stations.
- Installs and repairs all swimming pool piping (up to 12-inch diameter) associated with acidic and alkaline chemical feed systems and the pumping operations.
- Maintains all large diameter facilities-supported piping and controls for the City-owned facilities.
- Backs up the City’s Master Plumber when need arises.
- Assists other personnel and trades as required for the purpose of supporting or filling in for them in the completion of their work activities.
- Performs quality assurance evaluations over HVAC repair and maintenance projects as the liaison with consultants, contractors, inspectors, suppliers, and other departments on maintenance and project work.
- Maintains clean and orderly conditions in all working areas, including shop, vehicle and facility sites.
- Ensures duties are performed in a fiscally responsible manner while observing all safety practices and regulations.
- Represents the department and city government in dealings with the citizenry.
- Performs any other duties as required.
Skills, Knowledge and/or Abilities Required:
- Completion of a full-skilled apprenticeship, or equivalent training program directly related to all phases of this work. This could include HVAC, Pipefitting, and/or Millwright journeyman licensing. In addition, the individual shall have five (5) years of directly related journeyman level experience that includes troubleshooting of HVAC equipment and piping, and the associated pumps and valves.
- Skills to operate hand and power tools used in craft; perform basic math.
- Knowledge of mechanical, electrical, plumbing and hydraulic applications to HVAC field, codes and regulations relative to HVAC field, boiler operation, piping practices and standards, water treatment, basic computer operation.
- A working knowledge of building systems, including plumbing and electrical;
- Knowledge of confined entry procedures.
- The ability to work and communicate effectively within a team environment.
- The ability to support and communicate effectively within the various sites, Facilities Division, other departments, and outside entities.
- The ability to organize and employ writing skills of the nature required to effectively communicate.
- The ability to prioritize in the scheduling of work requirements.
- The ability to maintain a professional appearance and attitude on the job.
- The ability to work within a team or individually, as required, with minimal supervision.
- An understanding of, and ability to carry out, policies and procedures.
- The ability to read and interpret mechanical drawings, schematics, blueprints, plumbing code specifications, and diagrams for installation and repair of building systems and equipment.
- A knowledge of applicable regulatory, building and trades guidelines and codes.
- A working knowledge of the various types of plumbing, space heating, utility controls and equipment, fire suppression systems, and water treatment.
- The ability to work with a computer as an HVAC equipment and systems programming and troubleshooting tool.
- The desire and ability to engage in continuing education and skills upgrading.
- The ability to understand and promote confidentiality as the norm.
Licenses, Certifications, and/or Testing Requirements:
- High school diploma or equivalent.
- Employee shall have satisfactorily completed an apprenticeship or an equivalent training program directly related to all phases of this work (HVAC/Pipefitting/MIllwright), plus at least (5) years of experience to provide assurance of capability to perform tasks required upon appointment. Proof and verification of apprenticeship and acceptable work experience are required. Employee in this classification shall be able to verify this schooling and experience by producing affidavits, licenses and documents.
- Must be able to qualify for confined space entry in conformance with the City CSE Policy.
- Applicant must possess a current, valid Wisconsin Driver's License and a good driving record.