HVAC Controls / BAS Estimator Trane Technologies PlcHVAC Controls / BAS EstimatorWilmington, MA$78,406.66–$109,479.99 / yearMust be able to travel locally and possess a valid driver's license for a minimum of 12 months, with no major or frequent traffic violations including, but not limited to: DUI, Hit & Run, License Suspension, Reckless / Careless Driving or multiple smaller infractions or preventable collisions in the previous 3 years. Responsibilities: Responsible for the cost estimates consisting of materials, sub-contractors, purchased equipment, labor (start-up, service work, etc.), and other construction-related activities created by personnel to assist Account Managers in bidding on or determining price of project.
HVAC Equipment Commercial Systems Specialist Johnson Controls International PlcHVAC Equipment Commercial Systems SpecialistLynnfield, MA$80,000–$121,000 / yearJohnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education. As a Commercial System Specialist, you serve as a sales‑enablement professional supporting the local Sales and Operations teams in the sale and profitable execution of Johnson Controls / York commercial HVAC equipment.
HVAC Owner Account Executive Johnson Controls International PlcHVAC Owner Account ExecutiveLynnfield, MA$75,000–$100,000 / yearWith direction from the supervising manager, sells the Johnson Controls offerings persuasively, persistently and confidently to building owners at the D-level while reaching optimal profit levels. Salary Range: HIRING SALARY RANGE: $75,000-100,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.)
HVAC Mechanic I Museum of ScienceHVAC Mechanic IBoston, MassachusettsCollaborate Across Trades to Maintain Facility Operation: Work with licensed tradespeople and facilities staff to support a wide range of maintenance activities including electrical, plumbing, carpentry, painting, and general facility repairs. Respond to Building System Needs and Operational Requests: Monitor and respond to alarms and operational needs through the Building Management System (BMS), adjusting environmental conditions such as temperature, airflow, and lighting to support museum operations.
Project Manager Construction - Building Mechanical/HVAC Dragados USA IncProject Manager Construction - Building Mechanical/HVACFramingham, MAThe Division's experience with pumps, building controls, air handling, boiler installations, steam systems and chilled water systems has grown and developed over the past 25 years. White's Mechanical Division offers a variety of mechanical services - including heating, ventilation and air conditioning (HVAC), plumbing, process piping, and instrumentation - to public and private clients.
HVAC/REFRIGERATION MECHANIC, Facilities Management & Planning, Mechanical Operations Boston UniversityHVAC/REFRIGERATION MECHANIC, Facilities Management & Planning, Mechanical OperationsBOSTON, MA$48.66Full timePerform routine maintenance and service work on compressors, pumps, exhaust fans, air handlers, boilers, steam condensate systems, chillers, and computer room air conditioners. Troubleshoot and repair HVAC control systems including chillers, boilers, packaged roof tops, AHUs, VAVs, FCUs, FPBs, etc.
Hvac Mechanic I Museum of ScienceHvac Mechanic IBoston, MACollaborate Across Trades to Maintain Facility Operation: Work with licensed tradespeople and facilities staff to support a wide range of maintenance activities including electrical, plumbing, carpentry, painting, and general facility repairs. Respond to Building System Needs and Operational Requests: Monitor and respond to alarms and operational needs through the Building Management System (BMS), adjusting environmental conditions such as temperature, airflow, and lighting to support museum operations.
HVAC Equipment Account Executive Johnson ControlsHVAC Equipment Account ExecutiveMassachusetts$86,000–$148,000 / yearJohnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education. In this role, you will identify and develop opportunities within the commercial HVAC Boston market by working closely with mechanical contractors, engineers, facility managers, and commercial building owners.
HVAC Project Manager GpacHVAC Project ManagerBrockton, MA85000–120000GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. As an HVAC Project Manager, your responsibilities would include overseeing the design, installation, and maintenance of heating, ventilation, and air conditioning systems for various projects.
HVAC Equipment Sales EquiliemHVAC Equipment SalesWeymouth, MA$56,000–$65,000 / yearThe role requires conducting customer consultations, assessing equipment needs, preparing customized proposals, and closing high-value sales while collaborating with internal support teams to deliver an exceptional customer experience. The HVAC Equipment Sales Representative is responsible for driving equipment sales by developing new business opportunities and expanding existing customer relationships throughout New Hampshire.
Commercial/Industrial PLUMBING and HVAC Estimator GpacCommercial/Industrial PLUMBING and HVAC EstimatorBoston, MA125000–165000GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. Prepare detailed material, labor, and cost estimates for mechanical HVAC and plumbing systems, including conceptual estimates when plans aren’t available.
NewHVAC Estimator GpacHVAC EstimatorBoston, MA110000–145000Related Titles: Mechanical Estimator, HVAC Estimator, Piping Estimator, Plumbing Estimator, Project Estimator (Mechanical), HVAC Project Lead, HVAC Construction Manager, Senior Estimator, Mechanical Piping Project Manager, Estimating and Project Management Specialist. GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990.
HVAC Preventive Maintenance Sales Representative CoxHVAC Preventive Maintenance Sales RepresentativeRandolph, MassachusettsRESPONSIBILITIES Pursuing Preventive Maintenance Agreement leads generated by New Business Development Representatives and assisting in nurturing new clients into long term customers. ABOUT US: Cox Engineering, located in Randolph, MA is a full-service HVAC contractor with over 100 years of experience installing and maintaining commercial heating and cooling systems.
Outside Sales HVAC / Residential Consultant American Residential Services LLCOutside Sales HVAC / Residential ConsultantBoston, MA$100,000–$200,000 / yearJoin American Residential Services (ARS), the nation's largest provider of residential HVAC, plumbing, and electrical services, with over 7,000 team members and more than 45 years of experience delivering trusted home comfort solutions to customers across the country. As a Comfort Advisor / In-Home HVAC Sales Representative, you will meet with homeowners to evaluate their current heating and cooling systems and present customized replacement solutions.
In Home Sales Consultant HVAC American Residential Services LLCIn Home Sales Consultant HVACStoughton, MA$100,000–$200,000 / yearJoin American Residential Services (ARS), the nation's largest provider of residential HVAC, plumbing, and electrical services, with over 7,000 team members and more than 45 years of experience delivering trusted home comfort solutions to customers across the country. As a Comfort Advisor / In-Home HVAC Sales Representative, you will meet with homeowners to evaluate their current heating and cooling systems and present customized replacement solutions.
In-Home Sales Consultant - HVAC ARS-Rescue RooterIn-Home Sales Consultant - HVACStoughton, Massachusetts$100,000–$200,000 / yearFull timeJoin American Residential Services (ARS) , the nation’s largest provider of residential HVAC, plumbing, and electrical services , with over 7,000 team members and more than 45 years of experience delivering trusted home comfort solutions to customers across the country. Responsibilities: As a Comfort Advisor / In-Home HVAC Sales Representative , you will meet with homeowners to evaluate their current heating and cooling systems and present customized replacement solutions.
Outside Sales - HVAC / Residential Consultant ARS-Rescue RooterOutside Sales - HVAC / Residential ConsultantBoston, Massachusetts$100,000–$200,000 / yearFull timeJoin American Residential Services (ARS) , the nation’s largest provider of residential HVAC, plumbing, and electrical services , with over 7,000 team members and more than 45 years of experience delivering trusted home comfort solutions to customers across the country. Responsibilities: As a Comfort Advisor / In-Home HVAC Sales Representative , you will meet with homeowners to evaluate their current heating and cooling systems and present customized replacement solutions.
HVAC Area Service Manager NextechHVAC Area Service ManagerSalem, New Hampshire$90,000–$120,000 / hourIn this position, the ideal candidate will be a technical leader in the industry, proven high quality of craftsmanship, an effective communicator, dedicated to self-improvement and education and have experience successfully managing commercial Service Technicians. With over 2,000 team members nationwide, Nextech sets itself apart from other companies by being America's largest HVAC/R service provider.
Assistant HVAC Project Manager EMCOR Services Northeast, Inc.Assistant HVAC Project ManagerStoughton, MassachusettsFull timeParticipate in job site final walk-thru and manage the completion of all close-out documentation such as "As-Built" drawings and system operating instructions; transfers or excess materials; billings, collections and payments; and all project records. We are an independent service contractor and mobile service provider, offering complete mechanical solutions that range from engineering, design, and installation to maintenance, renovations, and retrofits.
Field Service Technician (CNC / Industrial Equipment / Electrical / HVAC) Robert E. Morris ToolingField Service Technician (CNC / Industrial Equipment / Electrical / HVAC)Waltham, MAMorris Group, Inc., one of the largest machine tool distribution networks in North America, is a third-generation, family-owned business dedicated to helping manufacturers improve productivity and stay competitive. Machines & technologies you'll use: CNC Mill (3-4 axis VMC) (Fanuc, Bridgeport, Mazak, ProtoTRAK, Haas, Okuma, Doosan, Kitamura, Makino, Brother, Hurco, Dmg Mori Seiki, Hwachon).
Assistant HVAC Project Manager EMCOR Group IncAssistant HVAC Project ManagerStoughton, MAAs a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Participate in job site final walk-thru and manage the completion of all close-out documentation such as "As-Built" drawings and system operating instructions; transfers or excess materials; billings, collections and payments; and all project records.
HVAC Equipment Commercial Systems Specialist Johnson ControlsHVAC Equipment Commercial Systems SpecialistMassachusetts$80,000–$121,000 / yearJohnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education. As a Commercial System Specialist, you serve as a sales‑enablement professional supporting the local Sales and Operations teams in the sale and profitable execution of Johnson Controls / York commercial HVAC equipment.
HVAC Owner Account Executive Johnson ControlsHVAC Owner Account ExecutiveMassachusetts$75,000–$100,000 / yearWith direction from the supervising manager, sells the Johnson Controls offerings persuasively, persistently and confidently to building owners at the D-level while reaching optimal profit levels. Salary Range: HIRING SALARY RANGE: $75,000-100,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.)
Mechanical Engineer III (HVAC facility design) IPS-Integrated Project ServicesMechanical Engineer III (HVAC facility design)Burlington, Massachusetts$112,000–$150,000 / yearFull timeIn this role, you will perform the design of the mechanical (HVAC) systems, including but not limited to: air distribution ductwork systems, hot water, chilled water and condenser water pumping and piping systems, steam and condensate piping systems, central plants, air handling systems, dehumidification systems, automatic control systems and ancillary heat transfer systems for pharmaceutical, biotech, and life science facilities. Process Architecture, Process Design, Engineering, Construction, Commissioning, Qualification, LEAN Project Delivery, Strategic Master Planning, Energy Conservation Management, Project Controls, Program/Project Management, Operations/Logistics Strategy and Planning, EPCMV, and Staffing Services.
NewPurchasing Manager (HVAC, Plumbing, Piping) 5 Star RecruitmentPurchasing Manager (HVAC, Plumbing, Piping)MassachusettsManage and maintain the fleet vehicle GPS program, ensuring timely truck departures, correct driver assignments, and vehicle maintenance scheduling. Collaborate with the accounting team to ensure accurate and timely billing, backorder resolutions, and credit processing.
Mechanical Engineer I (HVAC Facility Design) IPS-Integrated Project ServicesMechanical Engineer I (HVAC Facility Design)Burlington, Massachusetts$72,000–$111,000 / yearFull timeProcess Architecture, Process Design, Engineering, Construction, Commissioning, Qualification, LEAN Project Delivery, Strategic Master Planning, Energy Conservation Management, Project Controls, Program/Project Management, Operations/Logistics Strategy and Planning, EPCMV, and Staffing Services. Job Description: At IPS, we are global leaders in developing innovative solutions for the consulting, architecture, engineering, project controls, procurement, construction management, and CQV of technically complex facilities, primarily in the life sciences industry.
Sales Business Unit Manager - Commercial HVAC - Onsite MA Michael Page InternationalSales Business Unit Manager - Commercial HVAC - Onsite MAWilmington, Massachusetts$170,000–$200,000 / yearFull timeThe Successful ApplicantAbility to be onsite full time in Wilmington, MATrack record of success in a sales leadership position w/ quota attainmentExperience managing P & LExperience managing a sales team and selling into the industrial space (REQUIRED)Proven ability to build out a sales teamWhat's on OfferCompetitive salary in the range of $170,000 to $200,000 USD annually. From HVAC filters to advanced pollution control systems, our client operates in 22 countries and has been actively growing through performance and strategic acquisitions.
Commercial Sales Leader - Air Filtration and HVAC Solutions Michael Page InternationalCommercial Sales Leader - Air Filtration and HVAC SolutionsMassachusetts$175,000–$200,000 / yearFull timeThe Successful ApplicantAbility to be onsite full time in Wilmington, MATrack record of success in a sales leadership position w/ quota attainmentExperience managing P & LExperience managing a sales team and selling into the industrial space (REQUIRED)Proven ability to build out a sales teamWhat's on OfferCompetitive salary in the range of $150,000 to $200,000 USD annually. From HVAC filters to advanced pollution control systems, our client operates in 22 countries and has been actively growing through performance and strategic acquisitions.
District Sales Manager - Commercial HVAC/Filtration - MA/ME Michael Page InternationalDistrict Sales Manager - Commercial HVAC/Filtration - MA/MEBoston, MassachusettsRemote$110,000–$120,000 / yearFull timeJob TitleSales Representative for Global Leader in Air FiltrationAbout Our ClientThis company is a global leader in air filtration and indoor air quality solutions, providing products and systems that help control contaminants, improve energy efficiency, and support healthier environments in commercial, industrial, and institutional buildings. Develops and maintains long-term relationships with customers and prospects across the assigned market, while actively identifying and pursuing new business opportunities through research and market insight.
HVAC Project Manager - Life Science/Multifamily up to $25M Michael Page InternationalHVAC Project Manager - Life Science/Multifamily up to $25MBraintree, Massachusetts$120,000–$160,000 / yearFull timeHVAC Project ManagerThis Mechanical Contractor is one of Boston's most-established and reputable contractors and is big enough to support some of the high-profile jobs in Massachusetts for some of the top GCs; they have been in business for over 60 years and have one of the best client relationship track records in the industry. This is a great opportunity for a Project Manager local to the Boston area, both North and South Shore, to join a continuously growing team doing about $100M in annual revenue.
NewHVAC Project Manager / Estimator GpacHVAC Project Manager / EstimatorMiddleton, MA125000–160000The successful candidate will have the opportunity to work on a variety of public and private commercial construction projects, utilizing their expertise in estimating mechanical trades, evaluating project plans and bid documents, requesting material and equipment quotes from vendors, and completing estimates for submission to owners. GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990.
NewHVAC Design Engineer GpacHVAC Design EngineerRandolph, MA75000–115000GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. You will be facilitating collaboration with our operations team and manufacturing shop to design and develop custom air handling units.
Mechanical Engineer (HVAC) CRB Group, Inc.Mechanical Engineer (HVAC)Medford, MAThis position is responsible for overseeing the Mechanical discipline scope of work and managing the discipline budget on small to medium projects of intermediate complexity, and coordinating with internal and external architects and engineers, as well as clients, construction managers, subcontractors, vendors and manufacturers. Typical tasks and deliverables include load calculations, utility assessments, energy modeling, design reports, code evaluations, plans, P&IDs, schedules, installation details, equipment and system selection and specification, and coordination with manufacturers and trade partners.
Mechanical Engineer I (HVAC facility design) Integrated Project Services IncMechanical Engineer I (HVAC facility design)Burlington, MA$83,000–$127,000 / yearProcess Architecture, Process Design, Engineering, Construction, Commissioning, Qualification, LEAN Project Delivery, Strategic Master Planning, Energy Conservation Management, Project Controls, Program/Project Management, Operations/Logistics Strategy and Planning, EPCMV, and Staffing Services. At IPS, we are global leaders in developing innovative solutions for the consulting, architecture, engineering, project controls, procurement, construction management, and CQV of technically complex facilities, primarily in the life sciences industry.
HVAC Mechanic Lawrence General HospitalHVAC MechanicMethuen, MAPerforms all assigned tasks in a professional manner to reflect the highest integrity of the Engineering Department • Assists in maintaining HVAC controls and associated equipment to maximize efficiency levels in all environmentally controlled areas • Performs urgent corrective, routine and requisitioned repairs of minor problems with the electrical, mechanical and plumbing systems as required • Notifies lead engineer if major repairs are required • Performs maintenance on equipment and systems as required • Performs maintenance duties to all physical structures of the facility and complies with all building safety codes • Assists in replacing, repairing and testing electrical circuits, equipment, appliances and lighting systems as required • Maintains routine records of all inspections, maintenance and repairs performed on any equipment or system • Performs manual duties as requested (i.e., moving supplies or furniture, replacing light bulbs, removing trash or scrap material) • Possesses a thorough knowledge of how to use and maintain plant tools and equipment. Our Haverhill campus offers all private rooms, and our Methuen campus offers a new state-of-the-art catheterization suite and Joint Center of Excellence, named as a Blue Cross Blue Shield Blue Distinction+ Center for Knee and Hip Replacement.
Comfort Advisor - HVAC Maffei ServicesComfort Advisor - HVACRowley, MAFull timeIf you are goal-oriented and have a passion for delivering exceptional customer service, we invite you to join our team and contribute to our mission of providing top-notch service to our valued customers. Maffei Services is the trusted expert for residential HVAC & Plumbing services in the North Shore of Massachusetts and Southern New Hampshire area.
NewMechanical Estimator - HVAC / Plumbing Belmont SearchMechanical Estimator - HVAC / PlumbingBoston, MassachusettsMechanical estimators decide which jobs a shop wins and which ones sink it - you do the takeoffs, you know the sub market, and you can smell a bad spec three pages in. You'll price commercial and institutional work: plan-and-spec and design-build, vendor and sub quotes, bid-day execution.
Lead HVAC Design Engineer: Shape Modern Buildings WSPLead HVAC Design Engineer: Shape Modern BuildingsBoston, MA$118,000–$175,500 / yearThe role involves providing technical assistance for HVAC systems across projects, conducting field assessments, and collaborating with multidisciplinary teams. Candidates should have a Bachelor's Degree in Mechanical or Architectural Engineering and 7 to 10 years of HVAC design experience.
NewSenior HVAC Design Engineer Building Systems & Controls WSP in the U.S.Senior HVAC Design Engineer Building Systems & ControlsBoston, MAThe role involves designing HVAC systems for various projects, conducting field assessments, and collaborating with teams. Candidates should have a Bachelor's degree in Mechanical Engineering and 7-10 years of experience in HVAC design.
NewHVAC Controls Engineer - Building Automation Expert Insight GlobalHVAC Controls Engineer - Building Automation ExpertBoston, MAThis role is crucial in ensuring effective HVAC operations and contributing to a diverse work environment.#J-18808-Ljbffr. A recruitment agency is seeking a Controls Engineer in Boston to support a major HVAC customer.
HVAC Mechanic I Museum of Science BostonHVAC Mechanic IBoston, MA$28–$31 / hourCollaborate Across Trades to Maintain Facility Operation: Work with licensed tradespeople and facilities staff to support a wide range of maintenance activities including electrical, plumbing, carpentry, painting, and general facility repairs. Respond to Building System Needs and Operational Requests: Monitor and respond to alarms and operational needs through the Building Management System (BMS), adjusting environmental conditions such as temperature, airflow, and lighting to support museum operations.
Hvac Controls Engineer I Albireo EnergyHvac Controls Engineer IChelmsford, MA$73,000–$100,000 / yearAttending and/or receiving meeting minutes from software and graphics review meetings with customers (including customer representatives, general contractors, or commissioning agents). Pre-Employment Requirements: All offers of employment are contingent upon successful completion of applicable pre-employment screenings, which may include a background check and drug screening, conducted in accordance with applicable federal, state, and local laws.
Software Systems Engineer I- Hvac Controls Albireo EnergySoftware Systems Engineer I- Hvac ControlsChelmsford, MA$73,000–$100,000 / yearAttending and/or receiving meeting minutes from software and graphics review meetings with customers (including customer representatives, general contractors, or commissioning agents). Pre-Employment Requirements: All offers of employment are contingent upon successful completion of applicable pre-employment screenings, which may include a background check and drug screening, conducted in accordance with applicable federal, state, and local laws.
Senior Engineering Project Manager - HVAC Wunderlich-Malec CareersSenior Engineering Project Manager - HVACWilmington, MassachusettsThe ideal candidate will have experience executing and supporting a wide array of Capital Projects spanning facility, digital and manufacturing space infrastructure, with a strong background of successful project engineering in the life sciences industry. Knowledgeable – Recognized industry experts reinforced with ongoing training remain knowledgeable on the latest industry trends and directions.
NewSenior Controls Engineer - Hvac Controls Albireo EnergySenior Controls Engineer - Hvac ControlsChelmsford, MA$105,000–$148,000 / yearThe role will primarily involve programming of HVAC and utilities plant sequences using building automation controllers and languages but also includes remote or on-site support of construction/service techs as well as other software engineers. A key member of the Albireo team, the Senior HVAC Controls Engineer will be responsible for: Review of project specifications, drawings, and project-specific documents to understand project intent.
Senior Software Engineer- Hvac Controls Albireo EnergySenior Software Engineer- Hvac ControlsChelmsford, MA$105,000–$148,000 / yearThe role will primarily involve programming of HVAC and utilities plant sequences using building automation controllers and languages but also includes remote or on-site support of construction/service techs as well as other software engineers. A key member of the Albireo team, the Senior HVAC Controls Engineer will be responsible for: Review of project specifications, drawings, and project-specific documents to understand project intent.
Senior Controls Engineer- Hvac Controls Albireo EnergySenior Controls Engineer- Hvac ControlsChelmsford, MA$105,000–$148,000 / yearThe role will primarily involve programming of HVAC and utilities plant sequences using building automation controllers and languages but also includes remote or on-site support of construction/service techs as well as other software engineers. A key member of the Albireo team, the Senior HVAC Controls Engineer will be responsible for: Review of project specifications, drawings, and project-specific documents to understand project intent.
Senior Software Systems Engineer- Hvac Controls Albireo EnergySenior Software Systems Engineer- Hvac ControlsChelmsford, MA$105,000–$148,000 / yearThe role will primarily involve programming of HVAC and utilities plant sequences using building automation controllers and languages but also includes remote or on-site support of construction/service techs as well as other software engineers. Attending and/or receiving meeting minutes from software and graphics review meetings with customers (including customer representatives, general contractors, or commissioning agents).
Senior Hvac Controls Engineer Albireo EnergySenior Hvac Controls EngineerChelmsford, MA$105,000–$148,000 / yearThe role will primarily involve programming of HVAC and utilities plant sequences using building automation controllers and languages but also includes remote or on-site support of construction/service techs as well as other software engineers. A key member of the Albireo team, the Senior HVAC Controls Engineer will be responsible for: Review of project specifications, drawings, and project-specific documents to understand project intent.
HVAC Engineer CBRE Group IncHVAC EngineerLowell, MACBRE serves clients through four business segments: Advisory (leasing, sales, debt origination, mortgage serving, valuations); Building Operations & Experience (facilities management, property management, flex space & experience); Project Management (program management, project management, cost consulting); Real Estate Investments (investment management, development). Install, repair, adjust, service and maintain electric or pneumatic control systems used for building heating, ventilation, air conditioning, and refrigeration systems and equipment, including calibration of related instruments, gauges, and control components.