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About the Role
Ambient Mechanical Ltd is seeking an experienced Senior Chiller Service Technician to join our service team. This position is intended for a highly skilled technician with advanced experience in commercial and industrial chiller systems, including troubleshooting, major service, rebuilds, commissioning, and customer support. The successful candidate will be capable of working independently on complex equipment, supporting junior technicians, and representing the company professionally on critical service calls and major projects.
Responsibilities
- Perform advanced troubleshooting, service, maintenance, and repair on commercial and industrial chillers.
- Work on centrifugal, screw, scroll, reciprocating, magnetic bearing, and modular chiller systems.
- Diagnose complex mechanical, electrical, controls, refrigerant, oil, and performance-related issues.
- Perform seasonal start-ups, shutdowns, operational inspections, and preventive maintenance.
- Complete compressor inspections, teardown support, alignment checks, oil analysis, vibration review, leak testing, evacuation, and refrigerant charging.
- Perform or assist with major repairs, including compressor replacements, tube inspections, eddy current testing coordination, control upgrades, motor diagnostics, and VFD or starter troubleshooting.
- Review chiller logs, trend data, alarm histories, and operating conditions to identify deficiencies and recommend corrective action.
- Support commissioning, recommissioning, and performance verification of chiller systems.
- Provide technical guidance, mentoring, and field support to apprentices and junior technicians.
- Communicate professionally with customers, property managers, engineers, contractors, and internal service teams.
- Prepare detailed service reports, deficiency reports, repair recommendations, and quotation support notes.
- Ensure all work is performed in accordance with company standards, manufacturer procedures, safety requirements, and applicable codes.
- Participate in on-call rotation, emergency service, and overtime as required.
- Lead by example, demonstrating a high standard of quality, safety, professionalism, and customer service.
- Mentor and support apprentices and junior technicians in the field.
- Provide management with technical recommendations and input into job planning.
- Help identify training needs, recurring equipment issues, and opportunities to improve service delivery.
- Manage high-profile customer accounts and technically demanding service calls with confidence and professionalism.
Requirements
- 7–10 years of commercial HVAC service experience, with significant hands-on experience servicing and troubleshooting chillers.
- A valid 313A Refrigeration and Air Conditioning Systems Mechanic License and ODP certification are required.
- Strong experience with major chiller manufacturers such as Carrier, Trane, York, Daikin, McQuay, Multistack, Smardt, Dunham Bush, or similar equipment is required, including both magnetic and non-magnetic chillers.
- Advanced knowledge of refrigeration cycles, compressor operation, oil management, controls, electrical systems, starters, VFDs, and hydronic systems.
- Ability to read and interpret wiring diagrams, mechanical drawings, sequences of operation, service manuals, and manufacturer literature.
- Strong diagnostic and troubleshooting abilities.
- Sound judgment when working with critical equipment.
- Ability to work independently with minimal supervision.
- A valid driver’s license with a clean driving record.
- Strong communication, documentation, and customer service skills.
- Demonstrated commitment to safety, professionalism, and quality workmanship.
Skills
- Chiller systems troubleshooting
- Chiller systems major service
- Chiller systems rebuilds
- Chiller systems commissioning
- Customer support
- Centrifugal chiller systems
- Screw chiller systems
- Scroll chiller systems
- Reciprocating chiller systems
- Magnetic bearing chiller systems
- Modular chiller systems
- Mechanical diagnostics
- Electrical diagnostics
- Controls diagnostics
- Refrigerant diagnostics
- Oil diagnostics
- Performance diagnostics
- Seasonal start-ups
- Seasonal shutdowns
- Operational inspections
- Preventive maintenance
- Compressor inspections
- Compressor teardown support
- Alignment checks
- Oil analysis
- Vibration review
- Leak testing
- Evacuation
- Refrigerant charging
- Major repairs
- Compressor replacements
- Tube inspections
- Eddy current testing coordination
- Control upgrades
- Motor diagnostics
- VFD troubleshooting
- Starter troubleshooting
- Chiller log review
- Trend data analysis
- Alarm history review
- Deficiency identification
- Corrective action recommendation
- Commissioning support
- Recommissioning support
- Performance verification
- Technical guidance
- Mentoring
- Field support
- Professional communication
- Service report preparation
- Deficiency report preparation
- Repair recommendation preparation
- Quotation support note preparation
- Company standards adherence
- Manufacturer procedures adherence
- Safety requirements adherence
- Applicable codes adherence
- On-call rotation participation
- Emergency service
- Overtime work
- Refrigeration cycles
- Compressor operation
- Oil management
- Electrical systems
- Hydronic systems
- Reading wiring diagrams
- Reading mechanical drawings
- Reading sequences of operation
- Reading service manuals
- Reading manufacturer literature
- Diagnostic abilities
- Troubleshooting abilities
- Judgment
- Independent work
- Documentation skills
- Customer service skills
- Safety commitment
- Professionalism
- Quality workmanship
- Factory training (preferred)
- Centrifugal compressor overhauls (preferred)
- Screw compressor repairs (preferred)
- Magnetic bearing systems experience (preferred)
- Soft starter experience (preferred)
- Motor testing (preferred)
- Control retrofits (preferred)
- Building automation systems knowledge (preferred)
- Chiller plant optimization knowledge (preferred)
- Cooling towers troubleshooting (preferred)
- Pumps troubleshooting (preferred)
- Heat exchangers troubleshooting (preferred)
- Plate-and-frame systems troubleshooting (preferred)
- Hydronic troubleshooting (preferred)
- TSSA knowledge (preferred)
- Pressure vessel knowledge (preferred)
- Pressure relief valve replacement knowledge (preferred)
- Welding (preferred)
- Brazing (preferred)
- Rigging (preferred)
- Millwright experience (preferred)
- Estimating (preferred)
- Scope development (preferred)
- Technical review of repair quotations (preferred)
Work Type
- Full-time
- Unionized Position (UA Local 787)
Experience Level
- Senior
- 7–10 years of commercial HVAC service experience
Education Level
- 313A Refrigeration and Air Conditioning Systems Mechanic License
- ODP certification
Salary/Compensations
- Competitive senior-level wage based on experience and qualifications.
Benefits
- Benefits package
- Pension or retirement plan
- Paid training
- Manufacturer development opportunities.
About the Company
- Ambient Mechanical Ltd is a reputable service company.
Equal Opportunity
- Ambient Mechanical Ltd is an equal opportunity employer and welcomes applications from all qualified candidates.