HVAC Service Technician II, Mission Critical Services

Company Overview

EMCOR Services Aircond, a wholly owned subsidiary of EMCOR Group, Inc., is the Southeast’s largest provider of commercial and industrial heating, ventilating, and air‑conditioning (HVAC) services. With over 85 years of experience, Aircond delivers comprehensive HVAC solutions to businesses, deploying expert field technicians for maintenance, repairs, and energy‑efficient system replacements. Backed by the Fortune 500 EMCOR Group, Aircond serves single‑ and multi‑site clients with a full spectrum of facility services, ranging from HVAC service to complete operations and maintenance solutions.

Position Summary

The HVAC Service Technician Class II, Mission Critical Services maintains, troubleshoots, and repairs commercial HVAC and mission‑critical cooling systems within data‑center environments. The role requires a strong foundation in HVAC service, refrigeration, electrical troubleshooting, and controls, and involves preventative maintenance, service calls, equipment diagnostics, and support of critical cooling infrastructure.

Responsibilities

• Perform preventative maintenance on mission‑critical HVAC equipment, including CRAC units, CRAH units, air handlers, pumps, package units, split systems, and associated controls.
• Inspect equipment, identify developing issues, and recommend corrective actions to maintain reliable operation.
• Replace mechanical and electrical components such as motors, contactors, sensors, belts, filters, bearings, and control components.
• Assist with equipment startups, commissioning activities, and operational testing.
• Diagnose and repair HVAC and refrigeration system issues using electrical meters, pressure readings, control sequences, and manufacturer documentation.
• Troubleshoot refrigerant circuits, airflow problems, electrical controls, and equipment performance concerns.
• Read and interpret wiring diagrams, electrical schematics, and equipment documentation.
• Respond to customer service requests and assist with emergency service activities; participate in on‑call rotation as required.
• Support data‑center cooling infrastructure, including chilled water systems, pumps, CRAC/CRAH units, and related components.
• Utilize BAS/BMS and equipment monitoring systems to observe operation, record maintenance activities, and report issues requiring escalation.
• Follow all site‑specific procedures, safety requirements, lockout/tagout, refrigerant handling, and electrical safety practices.
• Maintain accurate service records, documentation, and proper use of personal protective equipment (PPE).
• Execute other related duties as needed to support evolving business priorities.

Skills

• Understanding of HVAC principles, refrigeration cycles, psychrometrics, airflow, and building environmental controls.
• Working knowledge of commercial HVAC equipment, including package units, split systems, air handlers, pumps, and precision cooling equipment.
• Ability to independently diagnose and repair common HVAC system issues and apply preventative maintenance practices.
• Proficiency in reading electrical schematics, wiring diagrams, and troubleshooting motors, contactors, relays, sensors, and control circuits.
• Basic knowledge of VFDs, BAS/BMS platforms, and HVAC control systems.
• Familiarity with mission‑critical environments and cooling requirements; understanding of uptime expectations and reliability concepts.
• Computer literacy with tablets, mobile service applications, email, and CMMS.

Qualifications

• High School Diploma or GED required; technical or trade school training preferred.
• EPA Section 608 Universal Certification required.
• Minimum 2 years of commercial HVAC service experience.
• Experience with controls, refrigeration systems, and commercial HVAC equipment strongly preferred.
• Experience in data centers, healthcare, pharmaceutical, industrial, or other critical environments is a plus.
• Excellent troubleshooting, problem‑solving, customer service, communication, and organizational skills.
• Ability to work independently and as part of a team, travel, and work overtime as required.

Pay Range

$34 – $39 per hour.

Benefits

EMCOR Services Aircond offers a competitive salary, a comprehensive benefits package, and a workplace culture that values integrity, safety, empowerment, teamwork, and continuous improvement. Employees have the opportunity to make a meaningful impact in a growing organization.

Physical Requirements

• Capable of lifting and moving up to 10 pounds.
• Frequent sitting, use of hands to operate computer keyboard and telephone.
• Occasional standing, walking, and reaching with hands and arms.
• Ability to climb ladders and work in mechanical rooms.
• Close vision and ability to adjust focus.

Work Environment

• Typical office environment with moderate noise levels.
• Site‑specific procedures for mission‑critical facilities are followed.