Jaime Lizarraga
Somerton,AZ
Summary
HVAC-R mechanic with extensive experience in installation, maintenance, and troubleshooting of systems. Proven expertise in diagnosing mechanical and electrical issues to enhance system performance. Strong commitment to high-quality service delivery and operational efficiency. Skilled in emergency response planning and compliance with equipment safety standards, ensuring customer satisfaction.
Overview
33
33
years of professional experience
1
1
Certification
Work History
HVAC-R And Power Generator Mechanic
CBRE
Austin, Texas
09.2019 - Current
- Conducted regular maintenance on power generators to ensure optimal performance.
- Diagnosed and repaired mechanical issues in various generator models efficiently.
- Operated or maintained auxiliary equipment to supply water, fuel or auxiliary power.
- Diagnosed HVAC-R system malfunctions using specialized tools and equipment.
- Performed routine maintenance on heating and cooling systems to ensure efficiency.
- Installed new HVAC-R units according to manufacturer specifications and local codes.
- Assisted customers in understanding system operations and maintenance requirements.
- Collaborated with team members to troubleshoot complex HVAC-R issues effectively.
- Maintained accurate records of service calls, repairs, and installations for compliance.
- Responded promptly to emergency service requests, prioritizing urgent customer needs.
- Created estimates for customers regarding cost of repair or replacement services for their HVAC-R systems.
- Identified potential issues with existing HVAC-R systems before they became major problems.
- Answered service calls to address ventilation, air conditioning and heating system issues.
- Repaired faulty wiring, motors, compressors, condensers, evaporators, and other components of HVAC-R systems.
- Used troubleshooting methods on HVAC components to diagnose and repair heat pumps, fireplace, geothermal, furnaces, and air conditioning equipment.
- Completed detailed reports documenting all service activities related to each job assignment.
- Explained proper use and care instructions to customers after completing a repair or installation job.
- Installed new HVAC-R systems in residential and commercial settings according to manufacturer specifications.
- Ordered necessary parts from suppliers in order to complete jobs efficiently.
- Followed up with customers after job completion in order to ensure satisfaction with the results.
- Tested components of heating and cooling systems using specialized tools and equipment.
- Calibrated thermostats for optimal performance of heating and cooling system units.
- Ensured that all safety standards were followed when performing service on HVAC-R equipment.
- Provided recommendations on energy efficient products that could help save money on utility bills.
- Collaborated with contractor representatives, supervisors, co-workers and sub-contractors on job sites to streamline operations.
- Performed preventative maintenance on HVAC-R systems, such as cleaning, adjusting, and replacing parts.
- Replaced worn out parts of HVAC-R systems with new components according to manufacturer instructions.
- Wired both line and low voltage to heating and cooling equipment.
- Verified that the installation site was suitable for the type of system being installed.
- Conducted brazing, threading pipe and tasks to complete service calls.
HVAC-R mechanic and power generator tech.
Emcor Government Services
Tucson, Arizona
07.2016 - 10.2019
- Installed and maintained HVAC systems in government facilities.
- Diagnosed mechanical issues in refrigeration units and heating systems.
- Performed routine inspections to ensure system compliance with safety standards.
- Collaborated with team members to troubleshoot complex HVAC-R problems.
- Repaired and replaced faulty components in heating and cooling equipment.
- Conducted preventive maintenance on HVAC systems to enhance performance.
- Responded to service calls for urgent HVAC-R repairs across multiple sites.
- Documented service activities and maintenance logs for regulatory compliance.
- Troubleshot problems with existing HVAC-R systems using diagnostic tools such as pressure gauges and thermometers.
- Installed new HVAC-R systems and components according to manufacturer specifications.
- Researched new products or technologies related to the field.
- Ensured that all work was done in accordance with relevant safety regulations.
- Adjusted refrigerant levels in accordance with manufacturer recommendations.
- Repaired faulty motors, switches, and other electrical components of the system.
- Inspected air ducts for leaks and blockages to ensure optimal airflow.
- Reviewed blueprints or drawings before beginning any installation job.
- Cleaned coils and blower components to remove dirt buildup.
- Checked for proper operation of safety controls in accordance with applicable codes.
- Maintained records of all maintenance activities performed on each unit.
- Disposed of hazardous waste materials properly according to local laws.
- Calibrated thermostats and temperature control devices for accurate readings.
- Replaced filters on a regular basis to maintain air quality standards.
- Connected wiring between controls and equipment in compliance with wiring diagrams.
- Repaired or replaced defective parts such as valves, seals, gaskets, fans, belts.
- Performed preventive maintenance and service on HVAC-R systems, including compressors, condensers, evaporators, and other related equipment.
- Troubleshot and diagnosed issues with HVAC equipment, providing recommendations for remediation.
- Maintained and serviced HVAC systems and refrigeration equipment.
- Installed heating, air conditioning and ventilation equipment and tested for proper operation.
- Retained careful and thorough maintenance and repair records in case customers required future service.
- Assessed efficiency of HVAC and refrigeration systems to provide feedback to customers.
- Assisted in the selection and sizing of HVAC equipment for new installations, based on detailed load calculations.
- Implemented safety protocols and procedures to ensure safe working conditions for all HVAC-related tasks.
- Performed emergency repairs on HVAC systems to restore heating and cooling services in critical situations.
- Coordinated with contractors and construction teams on new installations and major repair projects.
- Completed basic repairs such as changing belts, servicing fans and motors and cleaning coils, strainers and filters to optimize equipment performance.
- Reviewed work orders and discussed with supervisors.
- Tracked repairs made, labor time and parts used to calculate bill.
- Loaded materials, tools and equipment on truck at beginning of each shift.
- Installed and maintained generator systems for various government facilities.
- Conducted routine inspections and troubleshooting on generator equipment.
- Repaired and replaced faulty components to ensure operational efficiency.
- Adjusted air and fuel mixture ratios to optimize engine performance.
- Maintained records of all repairs performed on various types of generators.
- Conducted troubleshooting activities to diagnose mechanical or electrical issues with generators.
- Inspected and repaired electrical systems, including wiring, switches, circuit breakers, and other components.
- Tested generator output for voltage accuracy and load balance.
HVAC-R Mechanic
CSC-Electrical AYS companies / Gov.Contractor
San Luis, Arizona/
07.2003 - 07.2016
- Installed HVAC-R systems in commercial and government facilities.
- Conducted routine maintenance on heating and cooling units.
- Diagnosed and repaired refrigeration system failures effectively.
- Collaborated with team members to ensure project deadlines were met.
- Completed basic repairs such as changing belts, servicing fans and motors and cleaning coils, strainers and filters to optimize equipment performance.
- Put in new gas lines, wiring and other support components for HVAC systems.
- Cut and drilled holes in floors, walls and roofs to install equipment using power saws and drills.
- Reviewed work orders and discussed with supervisors.
- Tracked repairs made, labor time and parts used to calculate bill.
- Assessed system operations to identify potential areas requiring maintenance services.
- Utilized diagnostic tools for troubleshooting HVAC-R equipment issues.
- Adhered to safety protocols during installation and repair tasks.
- Assisted in training new mechanics on best practices and procedures.
- Maintained accurate records of service performed on equipment.
- Disposed of hazardous waste materials properly according to local laws.
- Repaired faulty motors, switches, and other electrical components of the system.
- Repaired or replaced defective parts such as valves, seals, gaskets, fans, belts.
- Cleaned coils and blower components to remove dirt buildup.
- Kept abreast of changing industry standards by attending seminars or workshops.
- Researched new products or technologies related to the field.
- Supervised junior technicians during repair jobs.
- Replaced filters on a regular basis to maintain air quality standards.
- Ordered parts as needed from wholesalers or suppliers.
- Troubleshot problems with existing HVAC-R systems using diagnostic tools such as pressure gauges and thermometers.
- Checked for proper operation of safety controls in accordance with applicable codes.
- Inspected air ducts for leaks and blockages to ensure optimal airflow.
- Performed preventive maintenance and service on HVAC-R systems, including compressors, condensers, evaporators, and other related equipment.
- Calibrated thermostats and temperature control devices for accurate readings.
- Examined heating and air conditioning systems and air compressors for signs of defects or malfunction.
- Installed, maintained and repaired commercial refrigeration systems.
- Retained careful and thorough maintenance and repair records in case customers required future service.
- Promptly responded to complaints about temperature problems during massive heatwave and conducted assessments to determine causes and target solutions.
- Adept at reading blue prints of electrical equipment.
- Coordinated with contractors and construction teams on new installations and major repair projects.
- Tested pipe, tubing joints, and connections for leaks.
- Assisted in the selection and sizing of HVAC equipment for new installations, based on detailed load calculations.
HVAC-Refrigeration technician
Bjornstad Refrigeration Inc.
Yuma, Arizona
01.1999 - 07.2003
- Diagnosed HVAC-R system malfunctions using specialized tools and equipment.
- Performed routine maintenance on heating and cooling systems to ensure efficiency.
- Installed new HVAC-R units according to manufacturer specifications and local codes.
- Assisted customers in understanding system operations and maintenance requirements.
- Collaborated with team members to troubleshoot complex HVAC-R issues effectively.
- Maintained accurate records of service calls, repairs, and installations for compliance.
- Educated clients on energy-saving practices and system upgrades for better performance.
- Responded promptly to emergency service requests, prioritizing urgent customer needs.
- Created estimates for customers regarding cost of repair or replacement services for their HVAC-R systems.
- Identified potential issues with existing HVAC-R systems before they became major problems.
- Answered service calls to address ventilation, air conditioning and heating system issues.
- Repaired faulty wiring, motors, compressors, condensers, evaporators, and other components of HVAC-R systems.
- Serviced units to residential and commercial heating and air conditioning customers.
- Used troubleshooting methods on HVAC components to diagnose and repair heat pumps, fireplace, geothermal, furnaces, and air conditioning equipment.
- Completed detailed reports documenting all service activities related to each job assignment.
- Installed new HVAC-R systems in residential and commercial settings according to manufacturer specifications.
- Maintained records of customer service calls including type of work performed, time spent on job site, materials used.
- Ordered necessary parts from suppliers in order to complete jobs efficiently.
- Followed up with customers after job completion in order to ensure satisfaction with the results.
- Tested components of heating and cooling systems using specialized tools and equipment.
- Calibrated thermostats for optimal performance of heating and cooling system units.
- Ensured that all safety standards were followed when performing service on HVAC-R equipment.
- Provided recommendations on energy efficient products that could help save money on utility bills.
- Collaborated with contractor representatives, supervisors, co-workers and sub-contractors on job sites to streamline operations.
- Inspected ductwork for leaks or blockages prior to installing a new unit.
- Performed preventative maintenance on HVAC-R systems, such as cleaning, adjusting, and replacing parts.
- Attended employee meetings and training to learn about new techniques, trends, and technologies.
- Replaced worn out parts of HVAC-R systems with new components according to manufacturer instructions.
- Wired both line and low voltage to heating and cooling equipment.
- Verified that the installation site was suitable for the type of system being installed.
- Conducted brazing, threading pipe and tasks to complete service calls.
- Installed and maintained refrigeration systems for commercial clients.
- Diagnosed and repaired mechanical issues in refrigeration units.
- Collaborated with team members to troubleshoot complex refrigeration problems.
- Utilized specialized tools for refrigerant recovery and system testing.
- Uncovered and corrected leaks with individual units and full refrigeration systems.
- Completed repairs, scheduled, and predictive maintenance on different equipment and systems.
- Maintained and repaired electrical and pneumatic controls, HVAC equipment and systems and auxiliary equipment.
- Delivered refrigeration units and full trailers to customers.
- Troubleshot complex problems with commercial-grade chillers using diagnostic tools like thermometers, voltmeters and ammeters.
- Calculated heat load requirements for installation of new equipment based on layout plans.
- Utilized specialized tools such as brazing torches, leak detectors and vacuum pumps during repairs.
- Reconfigured existing equipment for improved efficiency and performance.
- Repaired or replaced defective parts in refrigeration systems such as motors, compressors, condensers, evaporators and valves.
- Adjusted system controls to regulate temperature settings for optimal operation.
- Analyzed test results from laboratory samples taken from air conditioning units.
- Reprogrammed controllers when necessary to ensure correct operation.
- Interpreted schematics and diagrams to determine the most efficient repair solutions.
- Installed furnaces, boilers and A/C units in new and existing buildings and assessed functionality of existing units.
- Put in new gas lines, wiring and other support components for HVAC systems.
- Tested equipment following each install to determine efficiency and proper functionality.
- Reviewed work orders and discussed with supervisors.
HVAC-Refrigeration Technician
Triple star refrigeration/Division of Hazler Ref.
Somerton, Arizona
01.1998 - 01.1999
- Installed and maintained refrigeration systems in commercial buildings.
- Diagnosed issues with refrigeration units and performed necessary repairs.
- Conducted routine inspections on equipment to ensure optimal performance.
- Collaborated with team members to troubleshoot complex refrigeration problems.
- Building ammonia refrigeration coolers from the ground up, and the installation of ammonia refrigerant piping systems, ammonia air handlers, and chillers.
- Meeting with safety and building code inspectors during construction and installation procedures.
- Crew Supervisor and Lead Technician.
- Traveled around the country.
- Equipment start-up and setting before customer delivery.
- Responsible for maintaining crew working hours, and company expenses.
- Responsible for crew safety meetings.
- Responsible for ordering construction materials and ammonia refrigerant truck delivery once the final inspection was approved.
- Read and understood schematics in order to work on specific models.
- Sustained safety protocol, ensuring proper, cost-effective and safe handling equipment and material usage while adhering to regulatory standards and building codes.
- Calculated heat load requirements for installation of new equipment based on layout plans.
- Delivered refrigeration units and full trailers to customers.
- Troubleshot complex problems with commercial-grade chillers using diagnostic tools like thermometers, voltmeters and ammeters.
- Adjusted system controls to regulate temperature settings for optimal operation.
- Ensured that all work was conducted safely following industry standards and regulations.
HVAC_R Technician
Quick Refrigeration Inc.
Yuma, Arizona
06.1993 - 01.1998
- Installed and repaired HVAC-R systems for residential and commercial clients.
- Conducted routine maintenance on refrigeration units to ensure optimal performance.
- Diagnosed system issues using specialized tools and equipment effectively.
- Collaborated with team members to complete service calls efficiently and safely.
- Documented service activities and repairs in the company management system accurately.
- Provided customer support by explaining HVAC-R services and maintenance plans clearly.
- Adhered to safety protocols while handling refrigerants and electrical components responsibly.
- Assisted in training new technicians on company procedures and best practices consistently.
- Maintained records of all repairs and installations performed.
- Performed regular maintenance checks on all HVAC-R equipment including filters, blowers, belts, bearings.
- Repaired various components such as compressors, motors, fans, pumps, valves.
- Diagnosed complex issues with HVAC-R systems by performing tests utilizing specialized diagnostic equipment such as thermometers and pressure gauges.
- Cleaned evaporator coils and condenser coils using specialized tools and cleaning agents.
- Ensured that all safety protocols were followed while working around hazardous materials such as refrigerants.
- Serviced units to residential and commercial heating and air conditioning customers.
- Installed refrigeration, heating and air conditioning systems, positioning compressors, motors and other components in accordance with design specifications.
- Maintained safe workplace for employees and personnel during projects.
- Attended employee meetings and training to learn about new techniques, trends, and technologies.
- Troubleshooted and repaired malfunctioning heating, ventilation, cooling, and refrigeration units.
- Checked electrical connections for safety compliance with local codes.
- Unloaded and loaded truck supplies and equipment using proper hoisting techniques to avoid accidents and injuries.
- Programmed digital controls for temperature regulation as well as other functions within the system.
- Interpreted construction drawings and cut sheets in field.
- Assisted in the design of new HVAC-R systems based on customer requirements or building layout considerations.
- Performed installation, testing, maintenance and repair of smoke control systems
- Recovered refrigerant from failed units in accordance with EPA regulations.
- Performed preventative maintenance on existing HVAC-R equipment to ensure optimal performance.
- Inspected air ducts for proper installation and leakage.
- Replaced worn or defective parts on existing HVAC-R systems.
- Examined heating and air conditioning systems and air compressors for signs of defects or malfunction.
- Assessed efficiency of HVAC and refrigeration systems to provide feedback to customers.
- Responded to customer inquiries and complaints, providing timely and effective solutions to HVAC issues.
- Collaborated with sales teams to provide technical expertise and support for HVAC product sales.
- Conducted air quality tests and recommended solutions for improving indoor air quality in residential and commercial settings.
- Mounted compressors, condensers and other components in specified locations using hand tools and various welding equipment.
- Put in new gas lines, wiring and other support components for HVAC systems.
- Loaded materials, tools and equipment on truck at beginning of each shift.
- Adjusted and repaired systems to meet manufacturers' performance specifications.
- Led teams to complete large installation projects on time and within specific parameters outlined in customer documentation.
Education
Air Conditioning And Refrigeration Course - HVAC-R
Arizona Western College
Yuma, AZ06-1999
Bachelor of Science - Architectural And Building Sciences
University of Baja California
Mexicali, B.C. Mexico06-1988
Electrician - Industrial Electricity And Electronics
Preparatoria Lazaro Cardenas (HS)
Tijuana, B.C. Mexico06-1981
Drafting - Mechanical And Architecture Drafting
Secondary School ETI #24
Tijuana B.C. Mexico06-1978
Skills
- HVAC installation and maintenance
- Mechanical troubleshooting
- Electrical wiring and troubleshooting
- Customer service and support
- Parts ordering and inventory management
- Emergency response planning
- Control system diagnostics
- Engine performance analysis
- Wiring schematics interpretation
- Basic welding techniques
- Analytical thinking and decision-making
- Equipment safety standards compliance
- Power distribution management
- Motor alignment and calibration
- Cooling system service
Certification
EPA certification- universal/Tech 1 and Tech 2
Timeline
HVAC-R And Power Generator Mechanic
CBRE
09.2019 - Current
HVAC-R mechanic and power generator tech.
Emcor Government Services
07.2016 - 10.2019
HVAC-R Mechanic
CSC-Electrical AYS companies / Gov.Contractor
07.2003 - 07.2016
HVAC-Refrigeration technician
Bjornstad Refrigeration Inc.
01.1999 - 07.2003
HVAC-Refrigeration Technician
Triple star refrigeration/Division of Hazler Ref.
01.1998 - 01.1999
HVAC_R Technician
Quick Refrigeration Inc.
06.1993 - 01.1998
Air Conditioning And Refrigeration Course - HVAC-R
Arizona Western College
Bachelor of Science - Architectural And Building Sciences
University of Baja California
Electrician - Industrial Electricity And Electronics
Preparatoria Lazaro Cardenas (HS)
Drafting - Mechanical And Architecture Drafting
Secondary School ETI #24