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Stationary Engineer (6712)

Stationary Engineer

California State Personnel Board Specification

  • Schematic Code: QC41
  • Class Code: 6712
  • Established: 07/01/1983
  • Revised: 02/09/1988
  • Title Changed: --


Under general direction, to perform a variety of skilled work in the operation, maintenance and repair of boiler, heating, air conditioning, ventilating, lighting, power, water, water treatment, and other mechanical systems normally found in a State hospital, institution, large office building or complex of buildings; may instruct or lead other engineers; may instruct or lead resident workers; and do other related work.

Typical Tasks

Operates, maintains, and repairs boilers, heaters, pumps, valves, apprentices, and lines used in the distribution of steam and heated or processed water; operates, repairs and maintains refrigerant compressors, condensers, evaporators, traps, transfer pumps, expansion valves, stop valves, and float valves, together with all refrigerant lines and devices used to control temperatures; operates, maintains and repairs air compressors, together with distribution lines and all valves and devices for air control; operates, maintains and repairs all natural and manufactured gas distribution lines, and manufacturing systems including all valves and control devices; operates, repairs and maintains water filters, softeners, piping and pumps used in conjunction with water distribution, including all sinks and toilet bowls, supply lines and water lines; operates, repairs and maintains all types of motors and engines used to power pumps, compressors and fans; repairs and maintains single-phase and multi-phase electrical circuits up to 550 volts; repairs and maintains electrical transformers, motors, controls, machinery fixtures, appliances and elevators; repairs and maintains electronic systems such as clocks, closed circuit television, automatic alarm systems, security systems, energy management systems, equal potential grounding and automatic power transfers; calibrates control systems for air conditioning, refrigeration, heating and ventilation systems, including air balance, humidistat and solid state electronic motor control amplifiers; operates, maintains and repairs water and sewage systems, laundry, bakery and culinary equipment; inspects and trouble shoots electrical and mechanical systems and equipment to identify repairs needed; performs minor building maintenance and repair; plans layouts and estimates costs of electrical, mechanical, and electronic systems; requisitions parts, supplies and equipment; calculates systems requirements to provide estimates for modification or replacement of systems; leads and trains subordinate and less senior personnel, and advises them of unusual problems, procedures, and practices.

Minimum Qualifications

Either I

Completion of A Recognized Apprenticeship for Stationary Engineers. (Apprentices who are within six months of completing their apprenticeship program may be admitted to the examination, but must present evidence of completion prior to appointment.)


Experience: Four years of experience performing duties which included the operation, maintenance and repair of boiler, heating, refrigeration, ventilation and power equipment of large commercial, industrial or institutional buildings including the operation and maintenance of air conditioning systems involving the use of automatic controls. and


Education: Completion of 700 hours of formalized technical instruction relating to Stationary Engineering in training offered by such established programs as: Job Corps; Skill Centers; ROP; Trades Schools; Military; and JTPA (Joint Training Partnership Act). (An Associate of Arts or Certificate in Mechanical Electrical Technology, which must have included at least 12 semester units of instruction in heating, ventilation, and refrigeration systems involving the use of automatic controls may be substituted for the 700 hours of technical instruction). Students who are within six months of completing their degree will be admitted to the months of completing their degree will be admitted to the examination but they must present evidence of completion prior to appointment.


Two years of additional qualifying experience may be substituted for the required education.

Knowledge and Abilities

Knowledge of: Boilers and auxiliary boiler room equipment; heating, lighting, ventilating, air conditioning, power, refrigeration, building electric and pneumatic controls, water treatment and other mechanical or electrical equipment; the methods, tools, materials, and equipment used in the operation, maintenance and repair of such equipment.


Ability to: Follow oral and written directions; demonstrate mechanical ability; keep accurate records; install, operate and make repairs to the various types of equipment listed above in the knowledge requirements; make written reports, read, interpret, and work from plans, drawings and specifications; lay out work for others and direct them in this work; analyze situations accurately and take effective action.

  Updated: 1/14/2016
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