Applications Specialist - Commercial HVAC

ADP, Inc.; Roswell (GA); On-site; USD 90,000 - 140,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401k plan

Paid vacation and personal time

Job summary

CAREL USA, Inc. is seeking an Applications Specialist for Commercial HVAC in Roswell, GA. This role focuses on applying CAREL control solutions to DOAS, RTUs, heat pumps, AHUs, and chillers across commercial markets, working with OEMs and end-users.

The specialist provides technical leadership, training, and field support, guiding configuration and commissioning, while coordinating with global marketing solutions and regional teams. A strong HVAC controls background is essential.

Qualifications

• Bachelor's degree in Mechanical or Electrical Engineering or related technical field.
• Minimum of three years' experience configuring and troubleshooting commercial HVAC control systems.
• Experience with DOAS, RTU, heat pumps, AHU, and chiller controls is preferred.

Responsibilities

• Actively supports design and implementation of CAREL HVAC control solutions with OEMs in commercial markets.
• Guides OEM selection and configuration of CAREL controllers, VSDs, and supervisory systems for DOAS, RTU, heat pump, and AHU applications.
• Supports commissioning, startup, and troubleshooting of CAREL-controlled equipment at OEM facilities and job sites.

Skills

Technical communication

HVAC controls knowledge

Project coordination

Education

Bachelor's degree in Mechanical Engineering

Bachelor's degree in Electrical Engineering

Tools

BACnet

Modbus

LonWorks

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Applications Specialist - Commercial HVAC

Full-time Roswell, GA, US

Looking for a new opportunity....
We create products that deliver energy savings and minimize environmental impact through the use of advanced technologies and tailored services.

CAREL USA, Inc. is an innovative, high-tech company that offers professional development and skills enhancement opportunities, both nationally and internationally working for CAREL means taking an active role in building the company’s success, and enjoying a professional experience that involves developing a spirit of initiative, a sense of responsibility and an aptitude to work within multicultural and change-oriented environment.

About CAREL:

Founded in 1973, CAREL is a world leader in control solutions for air-conditioning, refrigeration and heating, and systems for humidification and evaporative cooling. We design our products to bring energy savings and reduce the environmental impact of machinery and systems. Our solutions are used in commercial, industrial and residential applications.

Specifically, we have operations in the Americas (North, Central, and South), Asia Pacific, Africa and Europe; we have 18 fully-owned subsidiaries and 7 production sites, in addition to partners and distributors in a further 75 countries.

Our mission of high-efficiency solutions summarizes the model that CAREL has adopted, both the starting point and the final objective that enclose the entire process, from conception to production and marketing of our systems. Research, innovation, and technology are the keys to our success: for more than forty years, customer needs have been at the center of our design work, so as to offer elements of differentiation in terms of both functions and appearance.

Carel offers great medical, dental, and vision, and life insurance benefits, vacation, sick and personal time, along with a 401k plan.

Find out more about us: www.Carelusa.com

Position Summary

This role is focused on maximizing the application of CAREL's control and cooling solutions in commercial HVAC environments by developing, communicating, and implementing market best practices for medium-to-large equipment installations with OEMs, , and end-users. The Application Specialist guides OEM applications and commissioning for commercial HVAC equipment including Dedicated Outdoor Air Systems (DOAS), rooftop units (RTUs), commercial heat pumps, variable refrigerant flow (VRF) systems, and air handling units (AHUs), leveraging CAREL's full portfolio of controllers, drives, dampers, heat exchanger, valves, and supervisory solutions.

This position provides comprehensive technical support for OEM pre-commercial initiatives, field installations, and system integration in commercial building applications. The specialist represents CAREL by providing strong technical leadership and supports regional strategy initiatives and projects. Reports to the Sr. Application Manager and works in close collaboration with the Global Marketing Solutions teams.

Role Overview

The Application Specialist proactively leads initiatives to apply efficient and advantageous CAREL control strategies for commercial HVAC systems. Reactively supports OEMs and building owners in early implementation phases, ensuring configuration and technical problems are addressed accurately and quickly. Serves as the CAREL commercial HVAC control expert and delivers technical training internally and externally.

Key equipment platforms include:

• Dedicated Outdoor Air Systems (DOAS) – energy recovery ventilators, dehumidification units, and fresh air handling for commercial and institutional buildings
• Commercial Rooftop Units (RTUs) – packaged and split rooftop systems serving retail, office, and industrial light-commercial facilities
• Commercial Heat Pumps – air-to-water, water-to-water, and geothermal heat pump systems including VRF controls for multi-zone commercial applications
• Air Handling Units (AHUs) and Fan Coil Units (FCUs) – terminal and central station air handlers for commercial, healthcare, and hospitality environments
• Chillers and Chilled Water Systems – commercial chilled water plant controls, primary-secondary pumping, and sequencing

Essential Duties and Responsibilities

Other duties may be assigned.

• Actively supports design and implementation of complete CAREL HVAC control solutions with OEMs in commercial markets, focusing on energy efficiency, dehumidification performance, ventilation compliance (ASHRAE 62.1), demand-controlled ventilation, and integration with BMS/BAS platforms.
• Guides OEM selection and configuration of CAREL controllerselectronic expansion valves, variable speed drives (CAREL inverters), and supervisory systems for DOAS, RTU, heat pump, and AHU applications.
• Supports commissioning, startup, and troubleshooting of commercial CAREL-controlled equipment at OEM facilities and customer job sites, with focus on refrigerant circuit optimization, economizer logic, heat recovery wheel controls, and humidity management.
• Provides technical expertise on integration of CAREL systems with building automation systems (BAS/BMS) via BACnet, Modbus, and LonWorks protocols in commercial building environments.
• Participates in product strategy and development discussions with CAREL's global engineering teams based on commercial application needs
• Develops and delivers technical training programs, application notes, configuration guides, and commissioning documentation for OEM partners, mechanical engineers, and building contractors.
• Partners proactively with OEM engineering teams to help plan, design, and solve systemic control issues before units ship to commercial job sites.
• Collaborates with sales, engineering, marketing, and product management to develop commercial application solutions responsive to market needs.
• Communicates in a timely manner the status and actions needed for problem resolution internally and externally; elevates urgent issues related to commercial HVAC control failures or opportunities.
• Identifies best CAREL controller practices from the OEM and contractor perspective, developing application standards that address common commercial HVAC requirements.

Technical Focus Areas

The specialist will apply CAREL control solutions to DOAS equipment requiring precise outdoor air conditioning, energy recovery, and dehumidification. This includes control of refrigerant-based cooling and heating coils, energy recovery wheels, heat pipes, and runaround coils. Key competencies include demand-controlled ventilation (DCV) logic, ASHRAE 62.1 compliance, CO₂-based reset strategies, and integration of CAREL humidity sensors and controllers to maintain neutral or slightly positive supply air dewpoint. The specialist will configure and optimize CAREL controls for refrigerant circuit management

Commercial Rooftop Units (RTUs)

Expertise is required in configuring CAREL controllers and drives for packaged commercial rooftop equipment ranging from small tonnage split systems to large built-up rooftop platforms. The specialist will work with OEM engineering teams on compressor staging and variable speed control using CAREL inverters, economizer damper control sequences, heat exchanger management, and refrigerant circuit protection. Focus areas include demand response integration, power metering, and configuration of CAREL supervisory tools for fleet monitoring of multi-site RTU installations across retail and commercial portfolios.

Commercial Heat Pumps – Air-to-Water, Water-to-Water, and VRF

The specialist will support OEMs developing commercial heat pump products using CAREL controls. This encompasses reversing cycle management, defrost logic, refrigerant charge optimization with CAREL electronic expansion valves (ExV), COP monitoring, and integration with hydronic distribution systems.. Geothermal and ground-source heat pump controls, including ground loop management and fluid temperature optimization, are also within scope.

Air Handling Units, Fan Coil Units, and Central Station Equipment

Application of CAREL's platform to commercial AHUs and central station equipment, including variable air volume (VAV) controls, static pressure reset, supply air temperature reset, heat recovery, and humidification using CAREL humidifiers. The specialist will guide OEMs in applying CAREL's full controls ecosystem—sensors, valves, drives, and supervisory—within large commercial air handling platforms for healthcare, hospitality, and institutional applications.

CAREL Product Integration and Supervisory Systems

Deep working knowledge of the CAREL product ecosystem is central to this role, including controllers, CAREL electronic expansion valves, supervisory software, and CAREL variable speed drives (inverters) for compressors and fans. The specialist will guide OEMs and end-users in building integrated commercial HVAC solutions using these tools, ensuring correct configuration, programming, and commissioning.

Energy Efficiency and Building Integration

Commercial applications require a strong focus on energy performance. The specialist will apply knowledge of ASHRAE 90.1 requirements, ENERGY STAR certification criteria for commercial HVAC, demand response programs, and time-of-use energy optimization. Integration of CAREL supervisory platforms with building management systems via open protocols (BACnet IP, BACnet MSTP, Modbus RTU/TCP) and cloud-based energy monitoring solutions is a key responsibility.

Reporting Responsibilities

This position has no direct supervisory responsibilities. The Application Specialist reports directly to the Sr. Application Manager within CAREL's matrix organization model, collaborating across sales, engineering, product management, and global marketing solutions teams.

Commercial HVAC Systems Expertise

Demonstrated ability to configure, commission, and troubleshoot medium-to-large commercial HVAC equipment including DOAS, RTUs, heat pumps, AHUs, and chillers. Specific hands-on experience with CAREL controller platforms, electronic expansion valves, and variable speed drives in commercial applications is strongly preferred.

Problem Solving

Identifies and resolves technical problems in a timely manner. Skilled at gathering and analyzing system data from CAREL controllers

Technical Collaboration

Works effectively across OEM engineering teams, mechanical contractors, building engineers, and internal CAREL sales and product teams. Balances individual technical responsibility with collaborative teamwork, contributing positively to cross-functional goals and customer outcomes.

Customer and OEM Service

Provides accurate, clear, and timely technical information to OEM engineering contacts, specifying engineers, mechanical contractors, and building owners. Functions as a trusted technical advisor, leveraging internal CAREL resources and global expertise to drive positive commercial outcomes with urgency and professionalism.

Qualifications

Education and Experience

Bachelor's degree in Mechanical Engineering, Electrical Engineering, or a related technical field is preferred. Equivalent hands-on technical experience in commercial HVAC applications will be considered.

Requires a minimum of three years of experience configuring and troubleshooting commercial HVAC control systems, with specific documented experience in two or more of the following:

• DOAS controls: energy recovery, dehumidification performance, hot gas reheat, DCV, and ASHRAE 62.1 compliance
• Commercial rooftop unit controls: compressor staging, economizers, variable speed fans, demand response
• Commercial heat pump systems: reversing cycle, defrost, EXV control, hydronic integration
• AHU controls: VAV, supply air reset, heat recovery, commercial humidification

Note: Recent graduates with relevant coursework, co-ops, or internship experience in commercial HVAC controls may be considered for a junior-level version of this role.

Working knowledge of ASHRAE standards (62.1, 90.1, 15), refrigerant regulations, and commercial energy efficiency metrics (EER, IEER, COP) is required. Computer and presentation literacy required, including the ability to develop effective technical documentation and training materials.

Language Skills

Excellent technical communication skills, both written and verbal, with highly technical and non-technical audiences. Must communicate effectively with OEM engineers, mechanical contractors, specifying engineers, building owners, and internal sales and marketing teams. English proficiency required; additional languages are a plus for regional assignments.

Reasoning Ability

High degree of technical aptitude with specific understanding of thermodynamics, psychrometrics, refrigeration cycles, and control theory as applied to commercial HVAC applications. Capable of relating market application requirements to practical CAREL product selection and configuration strategies. Understands how to tailor technical communication based on audience expertise level.

Physical Demands and Work Environment

While performing duties, the employee regularly interacts with customers and colleagues and uses computers in both office and field environments. The employee will be required to stand, walk, climb ladders, work in mechanical rooms and on rooftops, and lift up to 40 pounds. This position requires up to 40% overnight travel, with occasional weekend travel for commissioning support or trade events.

Work environments include OEM manufacturing facilities, commercial construction job sites, mechanical rooms, rooftops, and CAREL's application laboratory. Exposure to temperature extremes, noise, airborne particles, and electrical equipment is possible. Personal protective equipment is required in applicable environments.