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CoolSys

Refrigeration and HVAC design, installation, maintenance

HVAC/R Service Technician

Equipment Field ServiceConfirmed live in the last 24 hours
Full-timeWilmington, DE, USA$30 - $40 /hrIn-person

About the Job

Requirements

  • A high school diploma or GED, equivalent work experience, and trade or technical school classes are required.
  • A valid EPA certificate is required.
  • At least five years of experience in commercial HVAC, refrigeration, and electrical work is required.
  • Basic knowledge of refrigeration, HVAC, ice machines, gas furnaces, and electrical systems is required.
  • Knowledge of single systems and rack systems, including display cases and walk-in boxes, is helpful.
  • Knowledge of the components in a single-phase compressor and single-phase motor control circuit is required.
  • Ability to use an ohmmeter and verify that a capacitor is in good condition is required.
  • Ability to understand defrost circuits, schematic diagrams, and wiring diagrams is required.
  • Ability to identify refrigeration components and explain their functions is required.
  • Ability to leak-check a single-compressor system is required.
  • Ability to demonstrate proper use of personal protective equipment and safety equipment is required.
  • Ability to set up a low-pressure control as the primary temperature control and as a pump-down safety control is required.
  • Ability to determine superheat and set expansion-valve superheat is required.
  • Ability to verify that a defrost termination is functional is required.
  • Ability to perform preventive maintenance on HVAC systems is required.
  • Knowledge of gas furnace component functions and safety precautions is required.
  • Ability to recover refrigerant from a refrigeration system and change oil in a vacuum pump is required.
  • Ability to connect a gauge set properly for evacuation is required.
  • Knowledge of reporting procedures for a large refrigerant release is required.
  • Must be able 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 are required.
  • Ability to follow company policies and procedures and applicable state and federal laws is required.
  • Ability to use common business tools, including email, Microsoft Word, and Microsoft Excel, is required.

Responsibilities

  • Report to work in a timely manner as scheduled by the supervisor.
  • Repair and overhaul 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; diagnose equipment malfunctions and assess the operating efficiency of mechanical equipment.
  • Perform work on minor construction and remodeling projects, including startups of new installations.
  • Follow the CoolSys CARES culture of collaboration, accountability, respect, empowerment, and safety.
  • 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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