HVAC Technician Short-Term Hourly (STH)

DESCRIPTION

Under the direction of the Maintenance Supervisor performs skilled mechanical maintenance duties in the construction, diagnosis, repair, installation and alteration of District heating, ventilation, air conditioning and refrigeration systems and related equipment and facilities; performs preventive maintenance and routine servicing of equipment to assure efficient operation. Performs other related duties as may be assigned.

REPRESENTATIVE DUTIES

E = indicates essential duties of the position

• Repairs/rebuilds mechanical drive systems to include but not limited to replacement of drive bearings, shafting, blower wheel assemblies, multi-pulley and belt drives, and exhaust blower assemblies and motors for HVAC equipment. (E)
• Maintains and repairs hot and cold water pumping systems including motor replacement, bearing and shaft seal replacement, mounting and alignment techniques for proper operation, replacement of rubber and chain drive couplings; repair and rebuild triple duty valve, Y strainer assemblies; check valves, air and sludge separators, air bleeds and water treatment, air scavenging and sludge removal. (E)
• Maintain and repairs cooling tower, evaporator condenser and air cooled condenser; maintains, repairs, and replaces fills elements, water distributor, filter screening, piping, electrical components and control operation. (E)
• Maintains hot water boiler operation including electronic and mechanical safeties, primary and secondary pump systems and boiler ignition controls, chilled water systems operations, water flow dynamics, piping-pumping configurations. (E)
• Maintains and repair as necessary, gas fired furnaces, infrared heaters, hydronic systems including safties. (E)
• Maintains and repairs as necessary, electronic and electrical sequencing and controls. (E)
• Installs and replaces condensers, evaporators, compressors, pumps, air handlers specifying equipment. (E)
• Diagnoses, removes, replace, field services variable frequency drives. (E)
• Interprets blue prints and provides recommends on equipment for mechanical engineers, works with contractors, architects, and distributors.
• Determines and recommends equipment manufacturers to engineers. (E)
• Evaluates equipment and recommends replacement equipment as needed.
• Communicates with administrators, skilled maintenance personnel, contractors and others concerning construction, maintenance and repair issues.
• Trains, assigns, and reviews the work of student workers, summer helpers or other maintenance personnel as assigned; assists other skilled maintenance personnel as required.
• Performs other related duties as may be assigned.

MINIMUM QUALIFICATIONS

EDUCATION AND EXPERIENCE: Any combination equivalent to: graduation from high school supplemented by completion of an HVAC apprenticeship program and three years journey-level operation, maintenance and repair experience in the commercial HVAC and refrigeration trade.

LICENSES AND OTHER REQUIREMENTS:

• Valid California driver's license.
• Incumbents must qualify for a valid Forklift Certificate within the first year in this classification.
• Valid EPA Retrieval and Reclamation Certification issued by an authorized agency.