HVAC Service Technician · Maintenance Engineer

Ghattas Banoub

13+ years keeping cooling, refrigeration and building systems running — fault isolation, preventive and corrective maintenance, and verified repairs across data center, industrial and commercial HVAC.

Fairfax, Virginia
Data CentersIndustrialCommercialUniversal EPAOSHA 10
Ghattas Banoub
About

An engineer's approach to hands-on HVAC service

I'm an HVAC technician and maintenance engineer with more than 13 years of combined experience in HVAC, refrigeration, facilities maintenance and MEP construction coordination. I troubleshoot equipment failures, carry out preventive and corrective maintenance, and confirm system performance after every repair.

I hold a Bachelor of Engineering in Electrical, Electronics and Communications Engineering and Universal EPA certification. My electrical background makes controls and power diagnostics a natural part of how I work — and I've complemented it with focused study of data center critical power, cooling, controls and operating procedures.

13+Years of experience
B.Eng.Electrical engineering
EPAUniversal certification
OSHA 10General Industry
Skills

What I bring

Diagnostics

Fault isolation and root-cause troubleshooting using pressure, temperature, superheat, subcooling, airflow and electrical measurements.

HVAC & Refrigeration Repair

Chillers, rooftop units, split and DX systems, heat pumps, gas furnaces, walk-in coolers and freezers.

Refrigerant Work

Leak and restriction repair, nitrogen-purged brazing, pressure testing, recovery, evacuation and charging.

Electrical & Controls

Electrical controls, motors and capacitors, compressors, TXVs and control components.

Maintenance Programs

Preventive and corrective maintenance, work orders and coordination with operating teams to minimize downtime.

MEP & Documentation

MEP site coordination, technical documentation, and HVAC, plumbing and fire-fighting design in Revit and AutoCAD.

Experience

Work history

November 2026 — Present

HVAC Service Technician

ColonialWebb
June 2025 — November 2026

HVAC Technician

Michael and Son Services · Alexandria, Virginia
  • Diagnosed cooling, refrigeration and electrical control faults using pressure, temperature, superheat, subcooling, airflow and electrical measurements.
  • Repaired refrigerant leaks and flow restrictions; replaced compressors, TXVs, filter driers, blower and condenser fan motors, capacitors and control components.
  • Performed nitrogen-purged brazing, pressure testing, evacuation and refrigerant charging, then verified operating readings and cooling performance.
  • Carried out preventive maintenance, coil cleaning and installations, including system sizing and ductwork.
  • Resolved unfamiliar rooftop-unit faults using manufacturer documentation and a structured diagnostic approach.
November 2017 — March 2024

Maintenance Engineer

Sharm Grand Plaza Resort · Sharm El Sheikh, Egypt
  • Inspected, troubleshot and repaired split AC units, chillers, refrigeration systems and walk-in coolers supporting continuous resort operations.
  • Executed preventive and corrective maintenance, managed work orders and coordinated repairs with operating teams to restore equipment quickly.
  • Serviced gas and electric kitchen equipment; monitored pool water chemistry in line with safety standards.
January 2016 — November 2017

Maintenance Engineer

Three Corners Sea Beach Resort · Sharm El Sheikh, Egypt
  • Serviced and repaired split air conditioning and refrigeration systems; performed preventive maintenance and fault diagnosis.
  • Repaired gas and electric commercial kitchen equipment.
November 2011 — January 2015

Maintenance Engineer

Xperience Kiroseiz Parkland Resort · Sharm El Sheikh, Egypt
  • Maintained split and DX units, chillers, exhaust and makeup air units, refrigeration equipment, and gas and electric kitchen systems.
August 2010 — November 2011

MEP Engineer

GST Construction · Cairo, Egypt
  • Supervised mechanical, plumbing and electrical site works and coordinated MEP activities with civil teams.
  • Prepared subcontractor documentation, invoices and information requests; revised proposals and submitted documents to the consultant.
Data Center Focus

Critical-facility knowledge

Independent technical study and scenario-based preparation (2026) for data center engineering operations work.

Critical Power

UPS and batteries, diesel generators, ATS/STS, transformers, switchgear, PDUs, three-phase power and redundancy concepts.

Cooling & Controls

CRAH/CRAC, chilled-water systems, centrifugal chillers, pumps, cooling towers, VFDs, BMS/BAS, sensor validation, alarm trends and PID control.

Thermal & Water

Psychrometrics, P-H diagrams, cooling loads, COP, water chemistry, conductivity, corrosion and scale control, cycles of concentration and blowdown.

Operations & Safety

SOP, MOP and EOP procedures, LOTO, arc-flash awareness, maintenance planning, escalation and incident documentation.

Scenario: CRAH high supply-air temp Scenario: Generator running, no downstream power Scenario: UPS input acceptance Scenario: BMS temperature alarms
Credentials

Education, certification & training

Bachelor of EngineeringElectrical, Electronics and Communications Engineering · Cairo, Egypt · 2010
Universal EPA CertificationRefrigerant handling
OSHA 10-Hour General IndustryWorkplace safety training · Certified
RevitCertified · HVAC, plumbing and fire-fighting design
AutoCADCertified
Data AnalysisCertified · Excel, Power BI
LanguagesArabic (native) · English (very good spoken, excellent written)
Tutorials

Sharing what I've learned

Our goal is sharing experience and making knowledge accessible to everyone — practical HVAC, refrigeration and data center tutorials from the field.

Browse tutorials
Contact

Let's talk

The fastest way to reach me is by email or LinkedIn.