Air Conditioning Equipment Mechanic

Washington, D.C
Jan 28, 2023
Jan 31, 2023
Full Time

TOURS OF DUTY: Day: Monday - Friday 6:00 am - 2:30 pm
Evening: Monday - Friday 2:00 pm - 10:30 pm
Night: Sunday -Thursday 10 pm to 6:30 am

***Hours may change due to operational needs of Management***

***The positions are designated as "Emergency/Essential" and will be required to report to work during emergencies and inclement weather conditions.***

The duties quoted are at the WG-10 level .

  • Runs and maintains air conditioning equipment throughout offices and other facilities requiring critical control of temperatures.
  • Makes all required mechanical connections in order to secure ventilation and exhaust fans for steadiness and cavitation-free functioning.
  • 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 from outside, and automatic and bypass volume dampers.
  • Routinely maintains associated electronic equipment using manufacturer's equipment guides and specifications, industry criteria, and established techniques for guidance.
  • Checks systems for suitable running cycles, refrigerant and oil leakages, motor and compressor temperatures, belt adjustment and replacement, set points, cleanliness, operations and superheat rotation, and heating protection. Notes any faulty or damaged parts or unsuitable settings and adjustments and makes necessary modifications. Reports any equipment needing major repairs to the supervisor.

The position may be filled at the Worker level (WG-8) or Journey-level (WG-10). If hired at the Worker level (WG-8), the selectee will perform progressively more difficult tasks to develop skills leading to promotion to the Mechanic level (WG-10).


Conditions of Employment

  • You must be able to pass a drug test.
  • Your resume and question responses must demonstrate the job-related KSAs.

To be employed by the Architect of the Capitol in a paid position, an individual must meet one of the categories below:
  • A citizen of the United States;
  • A person who is lawfully admitted for permanent residence and is seeking citizenship as outlined in 8 U.S.C. 1324b(a)(3)(B);
  • A person who is admitted as a refugee under 8 U.S.C. 1157 or is granted asylum under 8 U.S.C. 1158 and has filed a declaration of intention to become a lawful permanent resident and then a citizen when eligible;
  • A person who owes allegiance to the United States (nationals of American Samoa, Swains Island, and the Northern Mariana Islands, and nationals who meet other requirements described in 8 U.S.C. 1408); or
  • A person who is currently an officer or employee of the Government of the United States.

Applicants are required to obtain a valid Environmental Protection Agency (EPA) approved Universal Certification to ensure compliance with environmental and safety regulations while in the performance of duties for this position. Applicants must acknowledge and sign the Hazardous Waste Management Requirement form prior to entrance on duty for the position.


You must meet all eligibility and qualifications requirements by the closing date of the job announcement.

You must meet the Screen-out element for this position which will be used to determine minimum eligibility for this position.

The screen-out element for this position is:

WG-08: Ability to perform Air Conditioning Equipment Worker duties without more than normal supervision.

WG-10: Ability to do the work of a journey level Air Conditioning Equipment Mechanic without more than normal supervision.

***NOTE: This experience MUST be clearly and fully supported in your resume.


There are no educational requirements for the position.

Additional information

Welcome Veterans. The Veterans Employment Opportunities Act of 1998 (VEOA) gives veterans' preference rights in the legislative branch to certain veterans as applied by the Congressional Accountability Act. Veterans' preference is applied on this vacancy announcement. If you are a veteran and have been separated under honorable conditions, you must submit a copy of your DD-214 or other proof of eligibility; SF-15, if applicable; and Department of Veterans Affairs documentation of disability, if applicable. For more information, please visit OPM vet guide

If you are a male applicant born after December 31, 1959, you must certify that you have registered with the Selective Service System. If you are exempt from registration under Selective Service Law, you must provide appropriate proof of exemption. Please visit the Selective Service System website for more information.

DRUG TESTING: The Architect of the Capitol (AOC) is a Drug Free Workplace. As part of the AOC's suitability assessment, a candidate tentatively selected for a position who is not currently an AOC employee is required to submit to screening for illegal drug use. Satisfactory completion of a drug test is a condition of employment with the Agency. A candidate must test negative prior to being eligible for appointment into a position. We will schedule, provide, and cover the cost for the drug test.

The selectee(s) under the vacancy announcement for this position is subject to a criminal record check by the U.S. Capitol Police and satisfactory adjudication to be eligible for employment at the Architect of the Capitol.

The Architect of the Capitol is an E-VERIFY Participant. E-VERIFY is an Internet-based system that compares information from an employee's Form I-9, Employment Eligibility Verification, to data from U.S. Department of Homeland Security (DHS) and Social Security Administration records to confirm employment authorization in the United States. If you are selected for this position, the documentation that you present for purposes of completing the DHS Form I-9 will be verified through the DHS "E-VERIFY" electronic system. For more information on E-Verify, please visit

The Architect of the Capitol is an Equal Opportunity Employer and prohibits discrimination on the basis of race, color, sex, religion, age, national origin, genetic information, sexual orientation, and/or disability.
This agency provides reasonable accommodation to applicants with disabilities. If you need a reasonable accommodation for any part of the application and hiring process, please notify the agency. The decision on granting reasonable accommodation will be on a case-by-case basis.

Moving expenses are not authorized.

Relocation expenses are not authorized.

Probationary Period-A newly appointed selectee(s) is subject to the completion of a one-year trial/probationary period, regardless of whether or not a trial/probationary period has been completed previously with the Architect of the Capitol or another Federal agency.

This vacancy announcement may be used to fill additional vacancies in any of the jurisdictions of the Architect of the Capitol.
All application materials become the property of the Architect of the Capitol.