Refrigeration Piping / Low Voltage Foreman

Tempe Mechanical•Tempe, AZ

6d•$35 - $40•Onsite

About The Position

The Refrigeration Piping / Low Voltage Foreman is a supporting field leadership role within the new construction HVAC division. This is a working foreman position that leads and works hands-on alongside the self-perform refrigeration piping crew and owns the field execution of low voltage systems, equipment start-up, and commissioning support. The Foreman is the field-level owner of making the mechanical system run, and proving that it runs: refrigerant piping installed to specification, low voltage controls terminated and functional, factory and equipment start-ups completed and documented, and commissioning checklists tracked and closed out. The Foreman also coordinates and quality-checks the controls subcontractor to keep the mechanical system on schedule and functionally complete.

Requirements

Journeyman-level refrigeration and HVAC piping experience on commercial projects.
EPA Section 608 Universal certification (refrigerant handling) - required.
Demonstrated brazing proficiency.
Working knowledge of low voltage HVAC controls, thermostats, relays, and sensor wiring.
Ability to read and execute mechanical drawings, control diagrams, and equipment submittals.
Valid Arizona driver's license and clean driving record.

Nice To Haves

Prior commissioning experience and familiarity with Facility Grid or comparable software
Manufacturer start-up certifications (e.g., VRF, chiller, or rooftop unit platforms)
Experience coordinating controls or BAS subcontractors on new construction
OSHA 30
Bilingual (English/Spanish)

Responsibilities

Lead installation of refrigerant piping systems, including brazing, pressure testing, evacuation, and charging, to specification, code, and manufacturer requirements.
Manage crew productivity, layout, material staging, and daily manpower loading against the project schedule.
Enforce clean, code-compliant, inspection-ready workmanship and correct deficiencies before they reach punchlist.
Install and terminate low voltage wiring, thermostats, relays, sensors, and functional control components for HVAC equipment.
Verify point-to-point functionality of low voltage devices prior to start-up and commissioning.
Troubleshoot low voltage faults during start-up and functional testing.
Coordinate the controls subcontractor's field sequencing, access, and readiness against the mechanical schedule.
Quality-check controls subcontractor work for completeness and functional readiness; flag deficiencies to the Project Manager and Superintendent.
Coordinate, schedule, and inspect the controls subcontractor in the field; route all scope direction, contractual instruction, and change-generating decisions through the Project Manager.
Perform and lead equipment start-ups and verify systems operate to design and manufacturer specifications.
Schedule, host, and oversee manufacturer and factory start-up technicians; confirm all pre-start prerequisites are complete before the factory representative arrives.
Capture and resolve start-up deficiencies before turnover.
Own the field commissioning process for assigned scope, including building and tracking commissioning checklists, schedules, and functional test readiness.
Complete and maintain commissioning documentation in Facility Grid and other required software, keeping status current and defensible.
Serve as the field point of contact for the commissioning agent, general contractor, and owner's representative on functional performance items.
Submit accurate and timely daily field reports; maintain start-up records, test reports, and commissioning logs for the turnover package.
Set the pace, quality standard, and safety expectation for the crew; participate in daily safety huddles and hazard analysis.
Enforce Tempe Mechanical safety policies and maintain compliance with EPA, OSHA, and local regulations.
Support scheduling, look-ahead planning, and coordination with other trades and the general contractor.