Description
EMCOR Services Aircond Corporation

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. For over 85 years, Aircond has delivered comprehensive HVAC solutions to businesses, deploying expert field technicians for maintenance, repairs, and energy-efficient system replacements. Guided by three generations of family leadership and backed by the strength of EMCOR Group, Inc., a Fortune 500 company, Aircond combines deep industry expertise with a commitment to innovation and reliability. Today, we serve single and multi-site clients with a full spectrum of facility services, ranging from HVAC service to complete operations and maintenance solutions. Learn more at www.aircond.com.
Position Summary
The Senior HVAC Reliability Technician, Mission Critical Services is a highly skilled HVAC professional responsible for the advanced maintenance, inspection, troubleshooting, performance analysis, and optimization of mission critical cooling systems supporting data center operations. This role focuses on maintaining equipment reliability, maximizing system availability, and identifying potential failures before they impact operations.
Working with minimal supervision, this technician performs comprehensive preventive and predictive maintenance activities, evaluates equipment condition and performance, analyzes operating data, and supports the ongoing reliability of critical cooling infrastructure. Success in this role requires a deep understanding of data center cooling systems, HVAC controls, refrigeration systems, and critical environment operating requirements.
Unlike Service Technicians, this position is primarily focused on proactive maintenance, equipment performance, system reliability, and operational readiness rather than customer dispatched service work or reactive repair response.
Essential Duties and Responsibilities include but are not limited to the following:
Advanced Preventive & Predictive Maintenance
- Perform advanced preventive, predictive, and condition-based maintenance on mission critical HVAC systems and supporting infrastructure.
- Execute comprehensive maintenance programs for CRAC units, CRAH units, chillers, pumps, VFDs, cooling towers, chilled water systems, and associated controls.
- Inspect, test, calibrate, clean, and replace components to ensure equipment reliability and peak operating performance.
- Verify equipment operation and system performance following maintenance activities, repairs, and operational adjustments.
- Maintain compliance with manufacturer recommendations, site standards, and mission critical maintenance procedures.
Equipment Assessment & Reliability Analysis
- Conduct detailed equipment inspections and condition assessments to identify developing failures and potential operational risks.
- Utilize BAS/BMS platforms, trend data, operating histories, alarms, and system performance metrics to evaluate equipment health and reliability.
- Analyze temperatures, pressures, airflow, electrical readings, vibration indicators, and operating conditions to identify performance concerns.
- Investigate recurring equipment issues, identify contributing factors, and recommend corrective actions to improve reliability and system availability.
- Support long-term equipment lifecycle planning through condition reporting and maintenance recommendations.
HVAC Systems Optimization
- Evaluate cooling system performance and identify opportunities to improve efficiency, reliability, and operational effectiveness.
- Support optimization of mission critical cooling systems through analysis of control sequences, equipment operating parameters, and system performance data.
- Assist with implementation and verification of system improvements, modifications, and equipment upgrades.
- Monitor and evaluate HVAC control strategies to support operational stability and uptime requirements.
Advanced Diagnostics & Technical Support
- Perform advanced diagnostics on HVAC, refrigeration, chilled water, electrical, and HVAC control systems.
- Troubleshoot complex issues involving CRAC units, CRAH units, chillers, pumps, VFDs, and BAS/BMS controlled equipment.
- Conduct root cause investigations of equipment failures and recurring operational issues.
- When preventive maintenance activities and reliability-focused responsibilities permit, assist service technicians with equipment troubleshooting, diagnostics, and repair activities in support of operational priorities, system reliability, and customer needs.
- Coordinate with manufacturers, vendors, service providers, and facility members to support resolution of complex technical challenges.
- Serve as a technical resource regarding equipment condition, maintenance planning, and system performance assessments.
Mission Critical Infrastructure Support
- Support the operation and maintenance of redundant cooling systems and critical facility infrastructure.
- Maintain environmental control systems necessary to support data center uptime and operational continuity.
- Ensure work activities comply with site operating procedures, maintenance standards, and critical environment protocols.
- Support outage planning, maintenance windows, commissioning activities, and operational readiness initiatives.
Safety & Compliance
- Follow all lockout/tagout, refrigerant handling, electrical safety, and customer safety procedures.
- Maintain accurate maintenance records and documentation.
- Adhere to all mission critical operating procedures and site requirements.
Other Requirements
- Execute other related duties as needed or assigned to support evolving business priorities.
Required Skills & Knowledge
Technical Expertise
- Advanced understanding of commercial and industrial HVAC systems, refrigeration cycles, psychrometrics, airflow dynamics, and hydronic systems.
- Strong working knowledge of CRAC units, CRAH units, chillers, chilled water systems, pumps, cooling towers, VFDs, and precision cooling equipment.
- Advanced knowledge of HVAC controls, BAS/BMS platforms, control sequences, monitoring systems, and trend analysis.
- Strong electrical troubleshooting capabilities involving motors, starters, relays, transformers, sensors, VFDs, and control circuits.
- Ability to evaluate equipment condition, identify developing failures, and recommend corrective actions.
- Advanced troubleshooting and root cause analysis skills across mission critical HVAC systems.
- Familiarity with data center operations, redundant cooling architectures, reliability standards, and uptime focused environments.
Qualifications
- High School Diploma, GED required. Technical or Trade School training preferred.
- EPA Section 608 Universal Certification required.
- A minimum of 4 years of commercial, industrial, or mission critical experience required. Journeyman level HVAC experience or equivalent technical expertise preferred.
- Experience working with mission critical, data center, healthcare, pharmaceutical, industrial, or similarly critical environments strongly preferred.
- Experience utilizing BAS/BMS platforms and equipment performance monitoring tools preferred
- Strong customer service, communication, and organizational skills.
- Ability to work independently and as part of a team.
- Ability to travel and work overtime as required.
Pay Range
- The pay range for a Senior HVAC Reliability Technician, Mission Critical Services is $32 - $45/hr.
Why Join Us?
At EMCOR Services Aircond, you’ll be part of a team that values integrity, safety, empowerment, teamwork, and continuous improvement. We offer careers where good work is valued, respected, and rewarded and you will have the ability to make a meaningful impact in a growing organization.
PHYSICAL DEMANDS:
While performing the duties of this job, the employee frequently is required to sit and use hands to operate computer keyboard and telephone. The employee is occasionally required to stand, walk, and reach with hands and arms. The employee must occasionally lift and/or move up to 10 pounds. Specific vision abilities required by this job include close vision, and ability to adjust focus.
WORK ENVIRONMENT:
This position works in a typical office environment. The noise level in the work environment is usually moderate.
We offer our employees a competitive salary and comprehensive benefits package and are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled
Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine.
EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent.
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.
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