This position is located in the Architect of the Capitol (AOC), Office of the Chief of Operations, Superintendent, Capitol Building, Assistant Superintendent, Tenant Services and Facility Operations Division, Maintenance Branch, HVAC-R Section. The incumbent performs progressively more complex assignments on electronic equipment and control systems frequently solving multi-dimensional problems while inspecting, troubleshooting, maintaining and adjusting heating and cooling systems.
You must meet all eligibility and qualification requirements by the closing date of the job announcement. You must meet the following SCREEN-OUT(S) required for this position. Ability to perform the work of and HVAC Electronics Mechanic (DDC) without more than normal supervision WG-12: Independently utilizes knowledge for advance troubleshooting and repair of digital control programming; installation, repairing testing, overhauling and modification of multiple HVAC electronic systems, utilizing a comprehensive knowledge of electronic principles and practices. NOTE: Your application must show that you have sufficient training and/or experience to perform the duties of the position as described in the vacancy announcement. This experience MUST be clearly and fully supported in your resume.
Tour of duty: Evening Shift: Monday - Friday -1:30pm - 10:00pm. Night Shift: Sunday night thru Friday morning - 9:30PM to 6:00AM The individual selected for this position will: Inspect and Troubleshoots HVAC Electronics and DDC Uses a precise knowledge of Direct Digital Controls (DDC) for advanced troubleshooting and repair abilities. Possess the ability to make changes to digital control programming for Automated Logic and Alerton control systems. Uses skills to troubleshoot and edit a WebCTRL program. Troubleshoots tools such as Wireshark and its usage in BACnet discovery. Possess a basic knowledge of Automated Logic clippings and their usage. Uses broad, practical and precise knowledge of electronic principles and practices to perform a complete range of electronic mechanical work relative to testing, troubleshooting, repairing, adjusting, aligning and calibration of complex DDC system components. Performs operational tests of newly installed electronic assemblies and major components. Performs tests to identify complex integrated circuitry malfunctions and repair the interface of components in relation to operational performance requirements. Verifies and proof tests equipment being used to determine if such equipment and/or procedures are within acceptable tolerances. Independently or as a team member, installs, overhauls, repairs, modifies and performs operational checks and built-in tests on a variety building application systems, sub-systems and related electrical, electronic, mechanical and hydraulic components. Troubleshoots, isolates and corrects malfunctions, using system test sets and diagnostic equipment. Utilizes a knowledge of Building Automation Systems (BAS) to diagnose and coordinate repairs with EMCS, where necessary and to repair DDC and improve operating efficiency. Acknowledges and investigates error alarms to maintain system integrity. Isolates problems and determines nature and scope of repairs and replacements required by making voltage, frequency calculations, tracing circuits and relationships in the signal flow through the use of schematics and applicable drawings. HVAC Operation and Performance Possess a broad understanding of control strategies for chill water distribution systems. Understands and implements reset control strategies and 100% outside air control strategies for improved HVAC system performance. Develops heating, ventilation and air conditioning (HVAC) operational schedules using Automated Logic WebCTRL system. Understands and implements feedforward and feedback control loops, how they differ and their purpose in control strategies. Troubleshoots HVAC operational issues using Automated Logic WebCTRL’s alarms, trends and reporting features. Uses diagnostic fault tools for advanced troubleshooting of operational issues. In the absence of established documentation determines the method and technique necessary to perform electronic tests. Performs operational checks of advanced electronic assemblies in accordance with vendor procedures. Fuses chilled water or refrigerant lines to condensers, evaporators, compressors and controls. Evacuates, dehydrates and charges system with appropriate refrigerants. Checks for refrigerant leakages. Resets controls essential to maintain desired temperatures, pressure and humidity. Locates and diagnoses problems in control systems following trouble calls or inspections. Fabricates new and/or repairs parts such as hinges, flanges, pipe joints and bearing sleeves, which can require welding. Makes all necessary adjustments in electrical and pneumatic controls for optimal operation of chilled or hot water valves, booster heaters, pre-heaters, maximum air return, outside air and automatic and bypass volume dampers. Checks systems for suitable running cycles, refrigerant and oil leakages, motor and compressor temperatures, belt adjustment, set points, cleanliness, operations and superheat rotation and heating protection. Tests and aligns and final adjustments to meet calibration standards using a variety of sophisticated commercial test equipment such as electronic counters, digital multi-meters, oscilloscopes, card readers, controllers (computers), etc.