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CoolSys

Refrigeration and HVAC design, installation, maintenance

Refrigeration Service Technician - Commercial & Industrial

HVAC & Building SystemsConfirmed live in the last 24 hours
Full-timeStamford, CT, USA$27 - $46 /yrIn-person

About the Job

Requirements

  • A high school diploma or GED, equivalent work experience, and trade or technical school classes.
  • A valid EPA certificate.
  • Three to five years of experience in commercial heating, ventilation, and air conditioning (HVAC), refrigeration, and electrical work.
  • Basic knowledge of refrigeration, HVAC, ice machines, gas furnaces, and electrical systems.
  • Knowledge and understanding of single and multiple-unit systems, rack systems, parallel racks, rack control units, display cases, and walk-in boxes.
  • Strong knowledge of open circuits on a rack compressor control circuit.
  • Knowledge of lockout/tagout and arc-flash equipment.
  • Knowledge of a case lineup with electric defrost circuits.
  • Knowledge and ability to use an RS engineering sheet.
  • Knowledge of minimum DA/RA and SST requirements for FF/IC systems.
  • Ability to identify refrigeration floor-plan symbols.
  • Ability to take readings of compressor parameters and compression ratios, and repair deficiencies.
  • Knowledge of proper material-handling techniques.
  • Knowledge of HVAC valve settings, preventive maintenance, locating leaks with a refrigerant leak detector, and reporting large refrigerant leaks.
  • Ability to demonstrate proper use of personal protective equipment and safety equipment.
  • Knowledge of level 2–3 experience/information.
  • Ability to lift up to 60 pounds without assistance and sit and/or stand for several hours at a time.
  • A valid driver's license and a good driving record.
  • Ability to understand and follow company policies and procedures and applicable state and federal laws.
  • Ability to use typical business tools, including email, Word, and Excel.

Responsibilities

  • Report to work in a timely manner as scheduled by a supervisor.
  • Repair and overhaul equipment such as compressors, water pumps, air handlers, electrical and mechanical control devices, and similar machinery.
  • Test malfunctioning systems and components using electrical and/or mechanical skills.
  • Maintain legible corporate and personal records of work history.
  • Perform general repair work on refrigeration, heating, and ventilation equipment, including air-conditioning units, evaporative condensers, ice machines, water pumps, gas furnaces, compressors, and electric motors.
  • Perform preventive maintenance activities and diagnose equipment malfunctions and operating efficiency of mechanical equipment.
  • Perform work on minor construction and remodeling projects, including startup of new installations.
  • Perform other duties as assigned.

Desired Qualifications

  • Experience working on refrigeration equipment in convenience stores or supermarkets is a strong plus.

About the Company

CoolSys

Refrigeration and HVAC design, installation, maintenance

CoolSys provides refrigeration and HVAC services to retail, commercial, and industrial clients. It designs, installs, and remodels systems, converts refrigerants, performs preventative maintenance, repairs, and optimizes energy use and overall system performance. Their products are not a physical device but a service offering: engineers create system designs, technicians install and service equipment, and ongoing monitoring and maintenance help keep temperatures stable and energy use efficient. What sets CoolSys apart is its broad, industry-focused experience across grocery, food service, telecommunication, manufacturing, education, entertainment, and pharma sectors, plus a persistent emphasis on reliability, integrity, and meeting client commitments while addressing environmental sustainability. The company aims to improve clients’ operations, experiences, and work environments through high-quality, dependable service and energy-efficient, properly maintained systems.

Company size
1,001-5,000
Company stage
Debt Financing
Total funding
$150M
Headquarters
Brea, CA
Founded
2017

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