Screw Machine Operator Jobs in Detroit, MI (NOW HIRING)

Job Summary
BASIC FUNCTION AND RESPONSIBILITY

• To operate, service, and maintain direct expansion and steam absorption air conditioning and refrigeration equipment; maintain gas-fired heating systems; operate, service, and maintain associated heat transfer systems including chilled water pumps, piping and coils; cooling towers and condenser water pumps and piping; air handling units; pneumatic, electrical, DDC and electronic control systems; valves, instrumentation and auxiliary equipment.
• Assist with re-commissioning efforts that partner our team with utility providers and our campus peers to optimize building equipment function.
• Partner with the Office of Campus Sustainability and Innovation (OCSI) energy team to ensure alignment on initiatives as well as to explore project funding options.
• Report out areas of opportunity to conserve energy and successes with the Michigan Medicine Facilities Team.
• Articulate the University of Michigan Health mission and goals in the area of energy management and the University of Michigan goal of carbon neutrality by the year 2040 for global communication

CHARACTERISTIC DUTIES AND 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.
• Operate, service, and maintain chillers, 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 dryers; 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; perform major overhauls of absorption and centrifugal chillers; service pumps, strainers and filters; test and rebuild vacuum pumps, damper motors, water and refrigerant coils; conduct eddy current testing; and other components in air conditioning, refrigeration and ventilation distribution systems.
• Read and interpret diagrams, sketches, and job specifications related to air conditioning, gas-fired heating, and refrigeration systems, 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 chillers.
• 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, TECs, lab ventilation equipment, and fan coil units.
• Respond to HVAC complaints and provide customer service.

Required Qualifications*
QUALIFICATIONS

• Graduation from high school or an equivalent combination of education and experience. Reasonable knowledge of the tools, equipment, methods and materials involved in the operation, service and maintenance of air conditioning, refrigeration and chiller plant systems is necessary.
• Possession of appropriate EPA certification is necessary. Possession of a valid State of Michigan driver's license is necessary. Specialized training in chiller system operation is desirable.
• Ability to exercise tact and discretion in relationships with others.
• Ability to perform the essential functions of the classification in areas that can be located at high elevations; behind or beneath obstacles; in confined spaces; subject to high heat; underground; in walls or floors; inside or outside buildings.
• Ability to observe safety precautions in the operation of tools, power equipment, and machinery.

Why Join Michigan Medicine?
Michigan Medicine is one of the largest health care complexes in the world and has been the site of many groundbreaking medical and technological advancements since the opening of the U-M Medical School in 1850. Michigan Medicine is comprised of over 30,000 employees and our vision is to attract, inspire, and develop outstanding people in medicine, sciences, and healthcare to become one of the world?s most distinguished academic health systems. In some way, great or small, every person here helps to advance this world-class institution. Work at Michigan Medicine and become a victor for the greater good.
What Benefits can you Look Forward to?

• Excellent medical, dental and vision coverage effective on your very first day
• 2:1 Match on retirement savings

Modes of Work
Positions that are eligible for hybrid or mobile/remote work mode are at the discretion of the hiring department. Work agreements are reviewed annually at a minimum and are subject to change at any time and for any reason throughout the course of employment. Learn more about the work modes .
Background Screening
Michigan Medicine conducts background screening and pre-employment drug testing on job candidates upon acceptance of a contingent job offer and may use a third-party administrator to conduct background screenings. Background screenings are performed in compliance with the Fair Credit Reporting Act. Pre-employment drug testing applies to all selected candidates, including new or additional faculty and staff appointments, as well as transfers from other U-M campuses.
Application Deadline
Job openings are posted for a minimum of seven calendar days. The review and selection process may begin as early as the eighth day after posting. This opening may be removed from posting boards and filled any time after the minimum posting period has ended.
U-M EEO Statement
The University of Michigan is an Equal Opportunity Employer. We are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants, including protected veterans and individuals with disabilities.
Job Detail
Job Opening ID
281443
Working Title
HVAC-R Mechanic
Job Title
HVAC-R MECHANIC
Work Location
Michigan Medicine - Ann Arbor
Ann Arbor, MI
Modes of Work
Onsite
Full/Part Time
Full-Time
Regular/Temporary
Regular
FLSA Status
Nonexempt
Organizational Group
Um Hospital
Department
MM Maintenance
Posting Begin/End Date
8/10/2026 - 8/24/2026
Salary
$108,492.80 - $109,532.80
Career Interest
Trades (Trades Union)