Commercial HVAC Installation Mechanic in Charleston, SC at ARS

Date Posted: 11/18/2019

Job Snapshot

Job Description

Company: ARS/Rescue Rooter

ARS of North Charleston SC has a Commercial HVAC Installation Mechanic opportunity available

 The Commercial HVAC Install Mechanic performs or is capable of performing all four (4) stages of HVAC installations in new construction settings to include marking-out and measurement of HVAC systems, installation of piping and drain lines, duct-work preparation, and installation, setting HVAC units, wiring, finish and start-up. Applies journeyman level technical skills and general knowledge of current industry codes, regulations, and standards relative to all work to ensure complete, a quality installation that meets inspection code.


  • Reviews blueprints and marks out locations for HVAC systems in new construction. Identifies where air returns will go along with chimney location and bath fans. 
  • Interfaces with builders, contractors, homeowners, architects, building inspectors and project managers to identify installation needs before laying out a duct configuration and during installation to receive changes in job requirements. 
  • Measures and determines duct sizing for proper airflow and ensures that proper amounts of duct and fittings are requested for the job. Cuts duct-work, applying site requirements in job preparation. 
  • Installs copper piping and drain lines below slab level, as appropriate. 
  • Installs chimneys and installs flashing on the roof. Ensures that flashing is sealed from water leaks. 
  • Installs exhausts for baths by running a pipe from bath to outside. Sets up return air systems from the main floor upward. Installs hood vents and zone damper systems. 
  • Assembles HVAC units and condensers and places/installs air boxes, registers, thermostats, coils, air handlers, heat pumps, copper line sets and risers in the installation process. 
  • Stretches/layout duct-work before installation to ensure accuracy in layout. May modify existing space to accommodate new equipment or build a platform for the unit, ensuring that it can carry the weight for the unit and technician. 
  • Reads layout prints and installs duct/flex systems and equipment according to job requirements. Wraps duct with insulation and seals, as needed. Secures duct and places company stickers on installed equipment. 
  • Installs refrigerant lines, fans, appliance vents, smoke detectors, humidifiers, and grills. Brazes in Freon lines and pressurizes with nitrogen. Evacuates Freon out of units, as required. 
  • Tests equipment by releasing charge from the unit, starting unit and checking pressures with gauges to ensure proper operation. 
  • Performs start-up of HVAC systems in new construction to ensure proper operation in heat and cool cycles. Records HVAC data such as model and serial numbers, amperage of heater and compressor and record pressures. 
  • Ensures that all HVAC installations are accurate, serviceable and that materials used and workmanship meet the requirements of applicable technical/safety standards and regulatory codes. Makes any modification needed to ensure proper installation and air balance.  
Requisition ID: 019665-6926

Job Requirements


  • Minimum of three years of HVAC Installing Commercial HVAC Systems
  • Related experience and/or advanced training or any equivalent combination of education and experience may be substituted.
  • EPA certification is required when dealing with refrigerants.
  • Valid driver’s license 


ARS-Rescue Rooter is an Equal Opportunity Employer AA/EOE/M/F/V/D. In compliance with the Americans with Disabilities Act, ARS-Rescue Rooter may provide reasonable accommodations to qualified individuals with disabilities and encourages both prospective and current employees to discuss potential accommodations with the employer.