Stephan Roberts
Lüderitz
Summary
Expertize in the followning Refrigeration fields
- Industrail Refrigeration
- Domestic Refrigeration
- Commercial Refrigeration
- Airconditioning systems heating and cooling
Overview
23
23
years of professional experience
1
1
Certification
Work History
Ammonia Refrigeration Technician
S.R. Refrigeration & Air Conditioning cc
Luderitz , Namibia
10.2016 - Current
- Repaired or replaced faulty valves, pumps, compressors, condensers, evaporators and other equipment in the system.
- Read technical manuals and schematics to understanding specific configurations.
- Repaired parts by using technical knowledge, special tools and soldering skills.
- Monitored levels of ammonia in the system to ensure safe operations.
- Inspected building HVAC systems and parts to assess maintenance requirements.
- Responded quickly to emergency situations involving ammonia refrigeration systems.
- Trained personnel on safe handling procedures for maintaining ammonia refrigeration systems.
- Installed furnaces, boilers and A/C units in new and existing buildings and assessed functionality of existing units.
- Uncovered and corrected leaks with individual units and full refrigeration systems.
- Completed basic repairs such as changing belts, servicing fans and motors and cleaning coils, strainers and filters to optimize equipment performance.
- Tested equipment following each install to determine efficiency and proper functionality.
- Inspected job site before project start to identify obstacles and resolve issues.
- Loaded materials, tools and equipment on truck at beginning of each shift.
- Analyzed data from logbooks to determine trends in performance of the systems.
- Reviewed work orders and discussed with supervisors.
- Performed troubleshooting and specific diagnostic tests to diagnose malfunctions.
- Observed safe work practices and conducted safety inspections to reduce workplace accidents.
- Mounted compressors, condensers and other components in specified locations using hand tools and various welding equipment.
- Installed, altered and repaired sheet metal products and equipment and adjusted ducts and hoods for HVAC systems.
- Maintained records of all repairs, inspections, and tests performed.
- Put in new gas lines, wiring and other support components for HVAC systems.
- Cleaned coils, filters, fans, motors, pumps and other parts as needed.
- Delivered refrigeration units and full trailers to customers.
- Trained and guided employees on correct methods for performing different repairs and maintenance services.
- Assisted with troubleshooting complex problems related to ammonia refrigeration systems.
- Installed new refrigeration systems according to manufacturer specifications.
- Operated tools such as drills, saws and welding torches safely while performing repairs.
- Led teams to complete large installation projects on time and within specific parameters outlined in customer documentation.
- Assessed system operations to identify potential areas requiring maintenance services.
- Worked closely with outside contractors during installation or repair projects.
- Sustained safety protocol, ensuring proper, cost-effective and safe handling equipment and material usage while adhering to regulatory standards and building codes.
- Maintained and repaired electrical and pneumatic controls, HVAC equipment and systems and auxiliary equipment.
- Tracked repairs made, labor time and parts used to calculate bill.
- Adhered strictly to safety protocols when working with hazardous materials like ammonia.
- Checked gaskets for leaks and replaced them when necessary.
- Tested electrical circuits associated with the ammonia refrigeration system for continuity using an ohmmeter.
- Conducted safety checks on all equipment and reported any issues to management immediately.
- Cut and drilled holes in floors, walls and roofs to install equipment using power saws and drills.
- Maintained and serviced HVAC systems and refrigeration equipment.
- Adjusted and repaired systems to meet manufacturers' performance specifications.
- Inspected and tested system components for proper operation.
- Planned work procedures using charts, technical manuals and experience.
- Provided technical advice regarding installation of new equipment or modifications to existing equipment.
- Tested pipe, tubing joints, and connections for leaks.
- Developed detailed reports outlining recommendations for repair or replacement of equipment based on findings.
- Diagnosed equipment malfunctions.
- Read and understood schematics in order to work on specific models.
- Calibrated pressure and temperature gauges to ensure accurate readings.
- Communicated with clients during service calls for top-quality customer service.
- Performed preventative maintenance on ammonia refrigeration systems and components.
- Completed repairs, scheduled, and predictive maintenance on different equipment and systems.
- Promoted high customer satisfaction by resolving problems with knowledgeable and friendly service.
- Provided excellent service and attention to customers when face-to-face or through phone conversations.
- Managed time effectively to ensure tasks were completed on schedule and deadlines were met.
- Worked effectively in team environments to make the workplace more productive.
- Prioritized and organized tasks to efficiently accomplish service goals.
- Conducted comprehensive research and data analysis to support strategic planning and informed decision-making.
- Utilized various software and tools to streamline processes and optimize performance.
- Conducted testing of software and systems to ensure quality and reliability.
- Demonstrated strong problem-solving skills, resolving issues efficiently and effectively.
- Operated equipment and machinery according to safety guidelines.
- Worked with cross-functional teams to achieve goals.
- Approached customers and engaged in conversation through use of effective interpersonal and people skills.
- Managed inventory and supplies to ensure materials were available when needed.
- Assisted with customer requests and answered questions to improve satisfaction.
- Exceeded customer satisfaction by finding creative solutions to problems.
- Identified needs of customers promptly and efficiently.
- Operated a variety of machinery and tools safely and efficiently.
- Updated and maintained databases with current information.
- Conducted routine maintenance and repairs on mechanical systems and industrial equipment.
- Collaborated closely with team members to achieve project objectives and meet deadlines.
- Repaired or replaced defective parts such as capacitors, contactors and relays.
- Diagnosed and repaired malfunctions in residential and commercial refrigeration systems.
- Operated soldering equipment to seal joints between pipes in refrigeration systems.
- Analyzed operating costs of existing HVAC installations to identify areas needing improvement.
- Programmed automated control systems for efficient operation of HVAC units.
- Adjusted system controls to regulate temperature levels according to customer specifications.
- Checked coolant pressure levels in cooling towers and chillers using gauges and meters.
- Created detailed reports with findings from inspection and repair activities.
- Tested electrical circuits to ensure proper functioning of motors, switches, thermostats and safety controls.
- Performed preventive maintenance on air conditioning units including changing filters and cleaning coils.
- Connected gas lines for furnaces or boilers when installing new heating systems.
- Repaired and modified heating, ventilating and air conditioning (HVAC) systems to improve efficiency.
Refrigeration Technician
Luderitz Auto Centre & Refrigeration
Luderitz
01.2014 - 10.2016
- Repaired parts by using technical knowledge, special tools and soldering skills.
- Connected and set up control panels and alarm components.
- Fixed faults and reinstalled components such as couplings and valves.
- Put in new thermostats, humidistats and motors.
- Ensured customer satisfaction by providing highest quality of products by ensuring all equipment was properly installed and working correctly.
- Reviewed engineering documentation to determine order of construction operations.
- Built and disassembled scaffolds, bracing and barricades.
- Processed work orders and prioritized jobs.
- Troubleshooted electrical and mechanical defects for residential, commercial and industrial sites.
- Completed indoor and outdoor residential and commercial construction projects.
- Worked overtime, including evenings and weekends, to respond to emergencies and fix unsafe conditions.
- Installed, repaired and rebuilt tile, brick and stone surfaces.
- Performed repairs and maintenance on VAV's and electrical equipment.
- Transported materials, tools and machines to installation sites.
- Documented orders, daily activities, weekly schedules and team performance.
- Utilized facility tracking system to keep accurate records of completed repairs.
Refrigeration and Air Conditioning Technician
Roberts & Sons Refrigeration Engineering
Saldanha
01.2010 - 12.2013
- Repaired or replaced defective parts such as capacitors, contactors and relays.
- Tested equipment following each install to determine efficiency and proper functionality.
- Read and understood schematics in order to work on specific models.
- Diagnosed and repaired malfunctions in residential and commercial refrigeration systems.
- Operated soldering equipment to seal joints between pipes in refrigeration systems.
- Completed repairs, scheduled, and predictive maintenance on different equipment and systems.
- Installed compressors, evaporators, condensers, receivers, expansion valves and other components of HVAC systems.
- Tested pipe, tubing joints, and connections for leaks.
- Analyzed operating costs of existing HVAC installations to identify areas needing improvement.
- Reviewed work orders and discussed with supervisors.
- Performed troubleshooting and specific diagnostic tests to diagnose malfunctions.
- Programmed automated control systems for efficient operation of HVAC units.
- Adjusted system controls to regulate temperature levels according to customer specifications.
- Trained and guided employees on correct methods for performing different repairs and maintenance services.
- Cut and drilled holes in floors, walls and roofs to install equipment using power saws and drills.
- Checked coolant pressure levels in cooling towers and chillers using gauges and meters.
- Delivered refrigeration units and full trailers to customers.
- Uncovered and corrected leaks with individual units and full refrigeration systems.
- Sustained safety protocol, ensuring proper, cost-effective and safe handling equipment and material usage while adhering to regulatory standards and building codes.
- Completed basic repairs such as changing belts, servicing fans and motors and cleaning coils, strainers and filters to optimize equipment performance.
- Created detailed reports with findings from inspection and repair activities.
- Tested electrical circuits to ensure proper functioning of motors, switches, thermostats and safety controls.
- Diagnosed equipment malfunctions.
- Tracked repairs made, labor time and parts used to calculate bill.
- Assessed system operations to identify potential areas requiring maintenance services.
- Performed preventive maintenance on air conditioning units including changing filters and cleaning coils.
- Installed furnaces, boilers and A/C units in new and existing buildings and assessed functionality of existing units.
- Connected gas lines for furnaces or boilers when installing new heating systems.
- Adjusted and repaired systems to meet manufacturers' performance specifications.
- Maintained accurate records of service calls for future reference purposes.
- Inspected job site before project start to identify obstacles and resolve issues.
- Repaired and modified heating, ventilating and air conditioning (HVAC) systems to improve efficiency.
- Mounted compressors, condensers and other components in specified locations using hand tools and various welding equipment.
- Ensured compliance with all local codes during installation activities.
- Maintained and repaired electrical and pneumatic controls, HVAC equipment and systems and auxiliary equipment.
- Calibrated system components to maximize energy efficiency while maintaining optimal comfort levels.
- Provided technical advice regarding potential upgrades of current HVAC installations.
- Led teams to complete large installation projects on time and within specific parameters outlined in customer documentation.
- Inspected ductwork for air leaks or blockages that could affect airflow performance.
- Repaired parts by using technical knowledge, special tools and soldering skills.
- Communicated with clients during service calls for top-quality customer service.
- Replaced faulty wiring for thermostats, electric heat strips and other electrical components of HVAC systems.
- Read technical manuals and schematics to understanding specific configurations.
- Installed new heating and cooling systems following blueprints or installation guidelines.
- Put in new gas lines, wiring and other support components for HVAC systems.
- Assisted customers with troubleshooting issues related to their HVAC systems over the phone or via email.
- Assisted with customer requests and answered questions to improve satisfaction.
- Conducted routine maintenance and repairs on mechanical systems and industrial equipment.
- Updated and maintained databases with current information.
- Conducted testing of software and systems to ensure quality and reliability.
- Utilized various software and tools to streamline processes and optimize performance.
- Completed day-to-day duties accurately and efficiently.
- Collaborated closely with team members to achieve project objectives and meet deadlines.
- Worked with cross-functional teams to achieve goals.
- Exceeded customer satisfaction by finding creative solutions to problems.
- Worked successfully with diverse group of coworkers to accomplish goals and address issues related to our products and services.
Refrigeration Engineer
Habur Cooling cc
Saldanha , South Arica
01.2002 - 01.2010
- Calibrated temperature controls on cooling units to ensure optimal performance.
- Researched, designed and installed mechanical products or equipment to meet requirements.
- Reviewed contractors' schedules and submission of shop drawings and samples.
- Used troubleshooting methods to identify issues with mechanical tools.
- Developed and tested models of alternate designs or processing methods to assess feasibility.
- Monitored stock levels of necessary spare parts needed for repair work or replacements when required.
- Evaluated mechanical designs or prototypes for energy performance or environmental impact.
- Used software and computer-assisted drafting equipment to aid in structural product design.
- Conducted research to test and analyze equipment and system feasibility, design, operation and performance.
- Created 2D drawings according to GD&T standards.
- Organized projects by delegating tasks to appropriate personnel and overseeing quality control duties.
- Maintained records of repairs performed and any spare parts used during maintenance activities.
- Wrote performance requirements for product development or engineering projects.
- Investigated equipment failures or difficulties to diagnose faulty operation and recommend remedial actions.
- Mentored and coached junior staff members by giving positive feedback and constructive criticism.
- Used combustion analyzers or pressure gauges to calculate energy losses for buildings.
- Investigated issues reported by customers concerning their cooling units or systems.
- Carried out routine checks on all components of the system to identify potential problems before they occur.
- Serviced and repaired air conditioning and refrigeration systems.
- Performed preventative maintenance tasks to ensure proper operation of the refrigeration system.
- Installed and maintained refrigeration systems, including compressors, condensers, evaporators, expansion valves and other related equipment.
- Ensured that all installations were in compliance with safety regulations and industry standards.
- Conducted periodic inspections to check for possible malfunctions or damage to the components.
- Recommended use of utility or energy services to minimize carbon footprints.
- Analyzed readings from temperature sensors and pressure gauges for signs of malfunction or failure.
- Specified system components or direct product modifications to verify conformance with engineering design or performance specifications.
- Trained junior technicians on safe working practices related to servicing refrigeration systems.
- Recommended design modifications to eliminate machine or system malfunctions.
- Assembled refrigeration units using hand tools according to manufacturer's specifications.
- Troubleshot and repaired problems in a timely manner to minimize downtime of the equipment.
- Repaired leaks in pipes and joints using appropriate welding techniques such as brazing or soldering.
- Designed test control apparatus or equipment to develop procedures for testing products.
- Eliminated machine defects by recommending operational adjustments.
- Estimated costs or submitted bids for engineering, construction or extraction projects.
- Conferred with engineers to implement operating procedures, resolve system malfunctions or provide technical information.
- Replaced faulty parts such as motors, pumps, switches as required.
- Provided technical support to customers regarding their refrigeration needs.
- Adjusted thermostats and timers on cooling systems to maintain desired temperatures.
- Evaluated current processes and identified areas where improvements could be made.
- Inspected insulation materials used for energy efficiency purposes in cold storage areas.
- Developed procedures for installation, testing and commissioning of new systems.
- Assisted in designing new cooling systems according to customer requirements.
- Worked with cross-functional teams to achieve goals.
- Achieved cost-savings by developing functional solutions to problems.
- Completed routine maintenance and repair.
- Provided excellent service and attention to customers when face-to-face or through phone conversations.
- Worked effectively in team environments to make the workplace more productive.
Education
Mechanical - Refrigeration
OTTC
2001
Skills
- Good mechanical aptitude
- Troubleshooting at component level
- Customer service experience
- Accurate measurements and estimates
- Excellent plan comprehension
- Welder certificate
- Proficiency with mechanical and electric tools
- Safety understanding
- Friendly and hardworking
- Project oversight
- Deadline driven
- Construction machinery operation
- Subcontractor relations
- Managing large crews
- Flexible work schedule
- Mechanical skills
- Equipment operation
- Mathematical calculations
- High school diploma
- Good at following instructions
Certification
Refrigeration Mechanic & Airconditioning
Welding
Timeline
Ammonia Refrigeration Technician
S.R. Refrigeration & Air Conditioning cc
10.2016 - Current
Refrigeration Technician
Luderitz Auto Centre & Refrigeration
01.2014 - 10.2016
Refrigeration and Air Conditioning Technician
Roberts & Sons Refrigeration Engineering
01.2010 - 12.2013
Refrigeration Engineer
Habur Cooling cc
01.2002 - 01.2010
Mechanical - Refrigeration
OTTC
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