The HVAC TAB Technical Representative performs a comprehensive Testing, Adjusting, and Balancing (TAB) assessment of air and hydronic systems, integrating with the facility's DDC controls to restore design performance, verify the sequence of operations, and produce a certified NEBB report with corrective recommendations. This role supports a facility currently experiencing critical HVAC operational failure with secondary moisture impacts and requires meticulous field measurement, adjustment, documentation, and certification.
TAB Fieldwork
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Execute full Testing, Adjusting, and Balancing for all HVAC air and hydronic systems to confirm design airflow and fluid flow.
- Perform Duct Air Leakage Testing (DALT) per SMACNA HVAC Air Duct Leakage Test Manual to validate duct integrity.
- Measure and document pressures, temperatures, humidity, velocities, fan/pump performance, and differential readings across systems.
Controls Integration
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Conduct functional performance testing of the DDC system by commanding control points (setpoints, valve positions, fan speeds) and verifying the sequence of operations and physical response.
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Coordinate findings and adjustments with the DDC specialist to ensure stable control and design compliance.
ReportingHandover
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Prepare and submit the final, comprehensive NEBBcertified TAB report, documenting procedures, initial conditions, adjustments made, and final performance data.
- Provide a formal recommendations section that identifies systemic issues and permanent corrective actions.
Tools, MaterialsLogistics
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Provide a complete inventory of TAB tools and materials needed for the assessment; coordinate shipment when items are not available onisland.
- Support mobilization/demobilization through Singapore per contract logistics.
SafetyCompliance
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Follow all applicable KBR, NSF Diego Garcia, federal, and local regulations and site procedures.
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Use required PPE and maintain proper subcontractor identification while on site.
CertificationTraining
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NEBB credentialing is required for report certification; work shall be performed and certified by NEBB.
- TAB Technician level requirements (field performer)
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Completed 4year apprenticeship (minimum).
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Passed NEBB written and practical exams.
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Proficient with all TAB instruments.
- TAB Supervisor/Professional (if serving in a lead capacity):
- 8+ years comprehensive HVAC/TAB experience.
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Advanced exams on theory, application, and report management.
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Engineering degree or demonstrated equivalent knowledge.
ToolsInstruments
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Proficiency with balometers/flow hoods, manometers, digital thermometers, hygrometers, tachometers/RPM meters, pressure/flow probes, and hydronic balancing equipment. (Technician supplies and inventories tools per SOW.)
Other Requirements
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Valid driver's license; eligibility to obtain onisland license upon validation.
- Strong documentation skills and attention to detail in data collection and reporting.
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Work performed on Diego Garcia military installation.
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Regular hours: 0700–1700, Monday–Saturday.
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Period of performance: 10 days including travel.
- Base life support (lodging, meals, etc.) provided by KBR and backcharged.
