HVAC Refrigeration Equipment Mechanic AA Job College Park area,Maryland USA,Trades / Skilled Labor

job description

this job opening is being used to fill current and future vacant positions in this classification at various shifts, locations and assigned days off.

order of preference: the selection for maintenance and construction is made on the basis of fitness and ability with preference given to: maintenance and construction district, system-wide (l689), authority-wide and external candidates, respectively.

the hvac refrigeration equipment mechanic is responsible for technical hvac/refrigeration related equipment maintenance and service work. The incumbent is responsible for inspecting, maintaining, installing and repairing commercial and industrial type air conditioning, refrigeration and heating systems in accordance with local codes, operations manuals and manufactures' instructions. This includes split systems, packages, window units, heat pumps, gas heaters, electrical heaters and related ventilation systems located in the authority facilities.

principal job duties

installs various types of air conditioning/heating and refrigeration units, in accordance with local codes, manufacturers' recommendations and standard specifications to include charging the system, performing installation start-up and checking operation procedures.
diagnoses equipment failures and performs necessary repairs by making appropriate adjustments to the system and/or replacing malfunctioning components. Performs repairs, inspections, required adjustments, testing, troubleshooting, cleaning, lubrication, and scheduled maintenance on assigned hvac and refrigeration systems, subsystems and components in accordance with schematics, wiring and flow diagrams, standard operating procedures, operation manuals, manufacturers' specifications, maintenance instructions, and local and federal environmental protection agency (epa) standards.
performs preventive, scheduled, unscheduled or: corrective maintenance, troubleshooting and tests on all hvac/refrigeration systems, subsystems and components using measuring equipment such as multi-meters, flow meters, pressure gauges, leak detectors, vacuum pumps, pneumatic control testers, air velocity indicators, and other instruments. And tools as required.
operates special shop equipment(drill, grinders, fork trucks, hoists and cranes). Maintains conditioning and refrigeration systems by performing scheduled maintenance inspections and test, removing, replacing, or repairing defective or worn parts, lubricating and cleaning or recharging equipment; performing leak detection tests; soldering or brazing tubing and piping; installing and replacing filters, metering devices and solenoids; and adjusting or calibrating pneumatic equipment to manufacturers' specifications using approved procedures and test equipment.
maintains hvac electrical components (circuits, wiring, starters, relays and motors) by performing maintenance inspections and test, removing, replacing and repairing defective or worn parts, cleaning and lubricating components as needed. Calibrates and adjusts electrical control devices such as thermostats, humidistats, modulating valves, relays and controllers, to assure that various are adequately maintained and in operational condition.
completes the required forms, tags, and other documentation that describe maintenance work. Enters data into the authority maintenance database and prepares parts requisitions for the supervisor's approval, in order to maintain the integrity of wmata's equipment and assure compliance with local and federal documentation standards.

other duties

n/a

safety sensitive

maintains and promotes awareness and accountability with safety policies and procedures while performing job functions. Promotes a positive safety culture and encourages reporting of safety concerns consistent with our agency safety plan, other regulatory requirements within the safety management system and just culture principles.

the functions listed are not intended to limit specific duties and responsibilities of any particular position. Nor is it intended to limit in any way the right of managers and supervisors to assign, direct and control the work of employees under their…