Commercial HVAC Technician: Install, Troubleshoot & Optimize RTUs

Crete United; Colorado Springs (CO); On-site; USD 48,000 - 62,000; Full time

Benefits offered by this job

401(k) matching

Dental insurance

Health insurance

Life insurance

Paid time off

Vision insurance

Job summary

Nielsen Mechanical in Denver/Colorado Springs is hiring an experienced Commercial HVAC Service Technician/Service Installer to work on RTUs, boilers, chillers and air handlers across new construction and retrofit projects.

The role requires 4+ years of installation and troubleshooting, strong diagnostic skills, and the ability to read blueprints and electrical diagrams on active job sites. Competitive hourly pay and benefits offered.

Qualifications

• 4+ years of commercial HVAC installation and troubleshooting experience.
• Strong hands-on experience installing and troubleshooting commercial rooftop units (RTUs).
• Experience with boilers, chillers, air handlers, and other commercial HVAC equipment preferred.
• Knowledge of commercial sheet metal ductwork and mechanical piping installations.
• Ability to independently diagnose electrical, mechanical, and refrigerant-related HVAC issues.
• Experience using HVAC diagnostic tools, including multimeters, gauges, and other testing equipment.
• Ability to read mechanical blueprints, wiring diagrams, and technical documentation.
• Understanding of commercial HVAC controls, airflow, and system operations.
• Comfortable working on rooftops, ladders, lifts, and active construction sites.
• Strong problem-solving skills and ability to work with minimal supervision.
• Valid driver's license.

Responsibilities

• Install, troubleshoot, and repair commercial HVAC equipment, including rooftop units, boilers, chillers, air handlers, and ventilation systems.
• Diagnose and resolve mechanical, electrical, refrigerant, and airflow issues on commercial HVAC systems.
• Perform equipment replacements, system upgrades, and new construction installations.
• Install and connect refrigerant lines, condensate drains, and mechanical piping.
• Read and interpret mechanical blueprints, wiring diagrams, and equipment specifications.
• Perform equipment startup, testing, and operational troubleshooting.
• Identify installation deficiencies and make necessary adjustments to ensure proper system performance.
• Work independently and alongside other trades to complete projects safely and efficiently.
• Follow applicable mechanical codes, manufacturer specifications, and jobsite safety requirements.

Skills

HVAC troubleshooting

RTU installation

Electrical diagnosis

Reading blueprints

Safety compliance

Team collaboration

Education

EPA 608 Certification

OSHA 10 or OSHA 30

HVAC apprenticeship or journeyman-level experience

Tools

Multimeters

Gauges

Refrigerant recovery equipment

Job description

Nielsen Mechanical in Denver/Colorado Springs is hiring an experienced Commercial HVAC Service Technician/Service Installer to work on RTUs, boilers, chillers and air handlers across new construction and retrofit projects.

The role requires 4+ years of installation and troubleshooting, strong diagnostic skills, and the ability to read blueprints and electrical diagrams on active job sites. Competitive hourly pay and benefits offered.