HVAC Mechanic

HVAC Mechanic | Lockheed Martin

Complete knowledge of maintenance shop practice and procedure as related to the installation, operation, maintenance, repair, overhaul and modification of systems and equipment described herein. Functional knowledge of gases and liquids under pressure, HVAC (BAS) energy management systems and personal computer operation. Must possess Universal Refrigeration Reclaim license. Ability to read and interpret manufacturer's drawings and specifications, installation layouts and sketches;

to use machinist's hand tools and precision measuring instruments; to work to exacting tolerances. Must possess a valid State of California Class C Driver's License, if required. Must possess, or obtain within 90 days, all LMMS-issued safety licenses required by law to operate material handling equipment and vehicles normally used by employees in this classification. Must be able to obtain and maintain a TS/SCI clearance.

IAM Hourly represented employees who currently work at the main (Sunnyvale/Palo Alto) unit, Santa Cruz, VAFB or Eastern Range facilities must apply to open requisitions on Brass Ring to be considered for the position. This occupation requires the installation, maintenance, repair, overhaul and modification of plant air conditioning, ventilation, and refrigeration systems, and equipment, including low temperature cascade systems, Building Automation Systems (BAS) and steam boiler, gas-fired heating equipment (excludes installation of ducts and utility feed lines).

Operate centrifugal chillers, cooling towers, hot water and steam boilers and air handling systems per manufacturers' recommendations and management directives. Determine, by making periodic inspections, the repair and maintenance work necessary to prevent functional breakdowns requiring major overhaul of air conditioning, ventilation and refrigeration systems and equipment, including low temperature cascade systems, and gas-fired heating equipment. Make working sketch of parts by taking measurements directly from equipment in need of repair, record material requirements and specify any necessary machining operations for use by others.

Overhaul air conditioning, ventilation and refrigeration systems and equipment, including low temperature cascade systems, by repairing or replacing crank shafts, bearings, pistons, valves, piston rings, condensers, coils, thermostats, humidity, and other mechanical units. Charge system with refrigerant, check and test for leaks; set and adjust controls and regulators and make functional tests after major overhaul operations. Repair associated hydronic, hot water/chilled water systems, vacuum and pneumatic control equipment.

Fabricate copper tubing, hoses and fittings as required. Overhaul heating equipment by disassembling heater, diagnosing trouble, replacing or repairing worn and faulty parts such as burners, baffles, pilots, governors, floats, strainers, pumps and thermocouples. Reassemble, install and functionally test heating equipment. Calibrate and make any adjustment required. Use the BAS computers to monitor and control individual building heating, ventilating and air conditioning (HVAC) equipment for purposes of monitoring equipment and building conditions, fault detection, change temperature control points and HVAC systems analysis/performance.

Troubleshoot and analyze input and output of HVAC stages for HVAC systems by reading voltages, hand held microprocessors and other observations. Adjust circuit boards and modules as needed. Work on all 24 volt or less AC/DC HVAC control systems and make necessary repairs. Check and calibrate systems after their original installation or after any major overhaul operation and make necessary adjustments to achieve operational efficiency.

Work at various heights. Assist maintenance craft workers in other fields of specialization when so assigned. Perform modification and rework wherein the operations are essentially the same as the work described herein. Work from blueprints, sketches, manufacturers' specifications and manuals. Work with liaison personnel and may verbally suggest design changes for engineering approval when the system cannot be installed as designed, or does not meet functional demands or where such changes will simplify fabrication, installation or maintenance of the system.

Use any equipment, tools, materials or information source necessary to perform the above duties.

Experience with BAS systems