Hvac-R Mechanic

Summary

To service and maintain direct expansion and steam absorption air conditioning and refrigeration equipment; pneumatic, electrical, DDC and electronic control systems; valves, instrumentation and auxiliary equipment. maintain gas fired heating systems; operate, service, and maintain associated heat transfer systems including chilled beam, chilled water pumps; piping and coils; cooling towers and condenser water pumps and piping; air handling units;

Responsibilities*

• Analyze and maintain air conditioning, refrigeration, and chiller plants including: control systems; pump distribution; chillers; cooling towers; condenser water systems; water treatment; refrigerant flow devices; control systems; fan systems, and terminal equipment.

• Install, repair and maintain DDC equipment related to HVAC systems.

• Diagnose HVAC system problems, including verifying operations of dampers, valves, actuators, coils, fans, pumps, heat exchangers, VAV boxes, airflow devices, water flow devices, thermostats, and other HVAC components.

• Service, and maintain chillers, chilled beam, cooling towers, chilled water and condenser water pumping systems, and control and instrumentation systems.

• Service, install, and maintain refrigeration equipment including reach-in and walk-in coolers; air driers; self-contained rooftop units; ice machines; ultra-low temperature freezers; and other refrigeration equipment.

• Service and maintain gas-fired heating units.

• Maintain and service humidification and dehumidification systems (excluding regulated pressure vessel components).

• Maintain and service refrigerant type air dryer systems.

• Establish system performance operating parameters and test to assure system performance parameters are being met.

• Read, interpret and generate sequence of operation for HVAC equipment and systems.

• Read and utilize DDC programming code.

• Perform test and balance work.

• Maintain and adjust fluids including, oils, refrigerants, and absorption chiller solutions.

• Service and maintain air conditioning, refrigeration, and chiller plant systems including: disassemble units for repair; service pumps, strainers and filters; test and rebuild vacuum pumps, damper motors, water and refrigerant coils; and other components in air conditioning, refrigeration and ventilation distribution systems.

• Read and interpret diagrams, sketches, and job specifications related to all HVAC equipment and apply information from technical literature such as manufacturer's equipment documentation and building operation and maintenance documentation.

• Maintain and use records such as equipment logs as required to document system and work performance.

• Maintain chemical levels for chilled and condenser water treatment systems.

• Operate air distribution systems within buildings.

• Install, maintain, troubleshoot, and repair reciprocating (piston), scroll, screw, rotary and centrifugal air compressors.

RELATED DUTIES

• Utilize refrigeration cycles and the proper use of various refrigerants.

• Balance and treat chilled and condenser water systems, sequence chiller operations, clean tube bundles, manage chiller fluids and purge chiller.

• Repair and maintain pneumatic controls, including receiver controllers, relays, switches and other pneumatic devices used for control of HVAC systems.

• Fill out log sheets relating to chemical treatment activities and take oil and refrigerant samples, and test for acidity and moisture content.

• Drain and fill chilled water, hot water, and condenser water systems.

• Be aware of and follow regulatory requirements.

• Check and verify accuracy of thermometers and pressure gauges.

• Clean cooling tower sumps, chiller water, condenser and evaporator coils; repair cooling tower water distribution headers and apply condenser water lay-up treatment.

• Fill out refrigerant compliance forms, system log sheets, water treatment logs, and other necessary departmental paperwork.

• Service and maintain thermostats, VAV boxes, TEC's, lab ventilation equipment, and fan coil units.

• Dismantle and repair equipment, replacing defective electronic and pneumatic components.

• Perform preventive maintenance activities on DDC and other related control equipment.

• Respond to HVAC complaints and provide customer service.

Required Qualifications*

• Possession of valid Michigan Drivers

• 5 years field experience required

• Unlimited refrigeration license preferred

• Graduation from high school or an equivalent combination of education and experience.

Background Screening

The University of Michigan conducts background checks on all job candidates upon acceptance of a contingent offer and may use a third party administrator to conduct background checks. Background checks are performed in compliance with the Fair Credit Reporting Act.

U-M EEO/AA Statement

The University of Michigan is an equal opportunity/affirmative action employer.

Job Detail

Job Opening ID

250934

Working Title

HVAC-R MECHANIC

Job Title

HVAC-R MECHANIC

Work Location

Dearborn Campus

Dearborn, MI

Full/Part Time

Full-Time

Regular/Temporary

Regular

FLSA Status

Nonexempt

Organizational Group

Dbn Business Affairs

Department

Dbn Physical Plant-Heat & Vent

Posting Begin/End Date

6/27/2024 - 7/13/2024

Salary

$48.18 - $48.68

Career Interest

Trades (Trades Union)

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