Haseeb Haider
Senior HVAC Technician
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About
Senior HVAC Technician with 15+ years of experience in HVAC installation, commissioning, troubleshooting, and preventive/corrective maintenance. Experienced with VRF/VRV, GMV, GMV5, GMV6, GMVX, MDS, Mini VRF, AHU, FCU, package units, split AC systems, and GREE screw chillers. Strong background in commercial, residential, and industrial HVAC projects.
Experience
Senior HVAC Technician at HVAC Contractor (2026-04 – Present)
Experienced HVAC Technician with hands-on exposure to VRF/VRV/ MDS/GMV5 and GMV6, GMVX air-conditioning systems, including installation, testing, commissioning, preventive maintenance and troubleshooting.
- VRF/VRV system installation, servicing, maintenance and troubleshooting.
- MDS, GMV5 and GMV6, GMVX systems installation, testing and commissioning.
- Indoor and outdoor unit installation, inspection and performance testing.
- Refrigerant copper piping installation, brazing and nitrogen pressure testing.
- Vacuuming, leak testing and refrigerant charging.
- Branch/refnet piping and refrigerant line inspection.
- Communication wiring, addressing and system configuration.
- Troubleshooting refrigerant, electrical, communication and control faults.
- Preventive and corrective maintenance of VRF/VRV systems.
- Checking operating pressures, temperatures, current and overall system performance.
- Identifying and rectifying error codes and abnormal operating conditions.
- Coordination with engineers, supervisors and MEP teams during installation and commissioning.
Senior HVAC Technician at Mega Facility Management (2026-01 – 2026-03)
Maintenance of All Types of Air Conditioning (AC) Units
- Preventive and corrective maintenance of split, cassette, package, ducted, and other AC systems.
- Troubleshooting electrical, mechanical, refrigeration, and control-related faults.
- Cleaning and servicing of filters, coils, blowers, condensers, evaporators, and drainage systems.
- Checking refrigerant pressure, leakage, temperature, and overall system performance.
- Carrying out repair, replacement, and commissioning of AC components.
Senior HVAC Technician at Bahria Town Karachi (2020-11 – 2022-12)
- Maintained VRF, VRV, GMV4/GMV5/GMV6/MINIVRF/DUCT/CASSETTE/ MDS, AHU, FCU, Package, Floor Standing and Split AC units.
HVAC Technician at ALTAMASH HOSPITAL (2018-08 – 2020-12)
GREE Screw Chiller — Chiller Operator
- Operated and monitored GREE Screw Chiller systems for efficient and reliable cooling.
- Performed daily start-up, shutdown, and operational checks of chiller equipment.
- Monitored chilled-water supply/return temperature, pressure, compressor load, and operating parameters.
- Checked and maintained chilled-water pumps, condenser-water pumps, cooling towers, and associated HVAC equipment.
- Identified abnormal operating conditions, alarms, and basic chiller faults and coordinated troubleshooting.
- Maintained daily log sheets, operating readings, and equipment status reports.
- Assisted in preventive maintenance and ensured safe operation according to site requirements.
- Responded to system faults and supported technicians during maintenance and troubleshooting activities.
HVAC Technician at DWP Group (2012-08 – 2018-07)
- Worked on Gul Ahmed Energy, Hilal Foods, DHA Suffa University, Iqra University, PIBT and HBL, Telenor Head Office projects.
- Installed, serviced and troubleshot GREE VRF, GMV and Screw Chiller systems.
HVAC Technician at Hafiz Cool Associates (2012-01 – 2016-12)
- Package, Floor Standing and Split AC units.
HVAC Technician at Sabro Technical Services (2009-01 – 2011-12)
- Maintenance Troubleshooting & Diagnostics
