Senior Commercial Chiller Technician

Midstate Mechanical, LLC; Phoenix (AZ); On-site; USD 40,000 - 66,000; Full time

Job summary

Midstate Mechanical LLC in Phoenix, AZ seeks an experienced HVAC Chiller Technician to join our Commercial Service team. You will diagnose, service, repair, and maintain commercial chillers and chilled-water systems, working to get equipment operating correctly the first time.

We value hands-on expertise with chillers, refrigeration cycles, electrical controls, and hydraulics, plus the ability to read wiring diagrams and documentation.

Qualifications

• 5+ years of commercial HVAC service experience preferred.
• Hands-on experience servicing commercial chillers and chilled-water systems.
• Advanced refrigeration, compressors, electrical, and pumps knowledge.
• Read wiring diagrams, schematics, and manufacturer docs.
• EPA 608 Universal Certification required.
• Strong customer service and communication skills.
• Valid driver's license with an acceptable driving record.
• Able to lift up to 50 lbs in demanding environments.

Responsibilities

• Diagnose, service, repair, and maintain commercial chillers and chilled-water systems.
• Troubleshoot refrigeration, electrical, mechanical, and control-system issues.
• Service air-cooled and water-cooled chillers, cooling towers, pumps, and associated equipment.
• Read and interpret wiring diagrams, schematics, control sequences, and technical documentation.
• Perform preventive maintenance, inspections, system testing, and operational checks.
• Identify equipment failures and recommend appropriate repairs or replacement solutions.
• Assist with system startup and commissioning activities as required.
• Communicate clearly with customers regarding equipment condition, repairs, and system performance.
• Accurately document service work using tablets, smartphones, and service software.
• Follow Midstate Mechanical and applicable jobsite safety requirements.

Skills

HVAC service

Chiller troubleshooting

Electrical systems

Controls understanding

Read diagrams

Customer service

Education

EPA 608 Universal Certification

Job description

Midstate Mechanical LLC in Phoenix, AZ seeks an experienced HVAC Chiller Technician to join our Commercial Service team. You will diagnose, service, repair, and maintain commercial chillers and chilled-water systems, working to get equipment operating correctly the first time.

We value hands-on expertise with chillers, refrigeration cycles, electrical controls, and hydraulics, plus the ability to read wiring diagrams and documentation.