Mechanical Journeyperson

Platinum Mechanical, LLC.; Tulsa (OK); On-site; USD 42,000 - 68,000; Full time

Job summary

Platinum Mechanical, LLC. in Tulsa is seeking a skilled HVAC Service Technician to perform advanced diagnostics and troubleshooting across electrical, refrigeration, and control systems in commercial settings.

You will lead preventive maintenance, calibrate sensors, program VFDs, work with BAS interfaces, and ensure safe, compliant field service while delivering reliable results for clients.

Qualifications

• HVAC technician experience preferred.
• Strong diagnostic skills across electrical, refrigeration, and controls.
• Familiarity with BAS interfaces (Johnson Controls, Honeywell, Trane) and VFDs.

Responsibilities

• Perform advanced diagnostics and troubleshooting of electrical systems, refrigeration cycles, hydronics, combustion, and indoor air quality in commercial buildings.
• Conduct preventive and predictive maintenance including belt replacement, lubrication, alignment, and sensor calibration.
• Install, program, and troubleshoot BAS interfaces, VFDs, and control components; document readings and outcomes.
• Carry out field service tasks including equipment installation, replacement, and safety procedures (LOTO).
• Provide consultative advice to customers, identify energy-saving opportunities, and coordinate with other techs.

Job description

1. Advanced Diagnostics & Troubleshooting

• Electrical Systems: Test and troubleshoot three-phase motors, contactors, relays, and complex control circuits.
• Refrigeration Cycles: Diagnose issues ranging from 1Ton mini splits to 300 Ton system, including superheat/subcooling analysis on multi-stage circuits.
• Hydronics: Service and repair chilled water pumps, cooling towers, and boiler systems.
• Combustion Analysis: Perform safety and efficiency tests on commercial gas-fired furnaces and unit heaters.
• Indoor Air Quality: Identify and diagnose building comfort issues that have minimum outside air requirements as a whole.

2. Preventive & Predictive Maintenance

• Air Handling: Inspect and replace high-static drive belts, align pulleys, and lubricate large-scale blower bearings.
• Filtration & Coil Hygiene: Manage large-scale filter change-outs and perform chemical coil cleaning on RTUs (Rooftop Units) and condensers.
• System Calibration: Calibrate thermostats, transducers, and sensors to ensure the building envelope stays within specific temperature and humidity setpoints.

3. Specialized Commercial Operations

• Building Automation Systems (BAS): Log into interfaces (like Johnson Controls, Honeywell, or Trane) to override points, check alarms, and verify sequence of operations.
• VFD Programming: Install and program Variable Frequency Drives to control motor speeds and energy consumption.
• Leak Detection & Recovery: Utilize electronic leak detectors or ultrasonic tools on large-scale piping; perform refrigerant recovery and charging per EPA regulations.
• Pneumatics: (If applicable) Maintain older pneumatic control systems, including air compressors and dryers.

4. Service Execution

• Electrical Component Replacement: Install or replace electrical/ control systems. Examples: VFD, Motors, Contactors, Disconnects, Control boards, etc.
• Controls: Install or replace control components. Examples: Actuators, Solenoids, Relays, BACNET cards, etc.
• Air Distribution: Install or replace duct systems in commercial properties.
• Equipment installation: Install or replace various HVAC systems. Examples: Boilers, Chillers, Cooling Towers, Rooftop Units, Energy Wheels, etc.

Field Operational Duties

Logistics & Safety

• Rigging Coordination: Assist in or oversee the setup of cranes for rooftop unit swaps or heavy component lifts.
• LOTO Procedures: Strictly enforce Lock-Out/Tag-Out protocols on high-voltage panels to ensure site safety.
• Thorough Documentation: Use mobile field software to document pressure readings, voltage drops, and "before/after" photos for facility managers.

Consultative Duties

• Customer Consulting: Discuss recommendations and plans for repair with customers.
• Energy Auditing: Identify "energy hogs" like leaking dampers or short-cycling compressors and propose efficiency upgrades.
• Collaboration: Work with fellow service techs to find the best solution for executing service jobs.