Roman Petrosyan
HVAC Service Technician, Residential and Light Commercial
Phoenix, AZ | roman.petrosyan@example.com
Professional summary
HVAC service technician with over 8 years on residential and light commercial systems in a desert climate. Completes 8 to 10 maintenance or diagnostic calls a day through cooling season, charges refrigerant to manufacturer specification, and keeps agreement customers on schedule year round.
Experience
HVAC Service Technician
Residential heating and cooling company (maintenance agreement route) · Phoenix, AZ · 2021 to Present
- Completed 8 to 10 service and maintenance calls a day through cooling season, with the diagnosis written on every ticket.
- Recovered, evacuated and charged refrigerant by weight and by superheat or subcooling rather than by gauge pressure alone.
- Diagnosed failed capacitors, contactors, compressors and control boards, and replaced blower and condenser fan motors on site.
- Ran spring and fall maintenance visits on agreement accounts and reported the findings that became planned replacements.
HVAC Installer
Light commercial mechanical contractor (rooftop replacements) · Phoenix, AZ · 2019 to 2021
- Changed out 3 to 7 ton rooftop package units with a two-person crew, averaging two replacements a week in season.
- Brazed line sets under nitrogen, pulled vacuum to 500 microns, and weighed in the factory charge on every start-up.
- Fabricated and sealed transitions and curb adapters so replacement units landed on existing curbs without leaking air.
- Completed start-up paperwork on all 40 units installed that year, recording static pressure, temperature split and amp draw.
HVAC Maintenance Technician
Property management maintenance department (apartment portfolio) · Tucson, AZ · 2017 to 2019
- Serviced roughly 600 apartment units on a spring and fall rotation, including coil cleaning, filter changes and drain flushes.
- Cleared condensate blockages within a day of the call on more than 30 occasions, keeping water out of the apartment below.
- Replaced capacitors, contactors and thermostats on 15 to 20 units a week during peak cooling season.
- Logged every unit by building and apartment so the department could plan the following season's replacements.
Education
- HVAC certificate program, technical college | 2017
- High school diploma | 2015
Certifications
- EPA Section 608 Universal certification
- NATE certification, air conditioning service
- OSHA 10 construction
Skills
Refrigerant handling · System diagnostics · Preventive maintenance · Split system installation · Electrical troubleshooting · Airflow and duct checks · Thermostat and controls · Customer reporting