The Chiller Operating Engineer License certificate recognizes the license-holder hads demonstrated competency by examination. The certificates is obtain by examination and intended for commerial, institutional and industrial applications. There are three-levels of Chiller Engineer: 3rd Class, 2nd Class, and 1st Class Chiller Engineer with a knowledge of Cooling Towers, Compression Chillers, and Absorption Chillers.
This License Certificate requires Continuing Educational Contact Hours (CEH) of 3-hours per year for an Accredited Institution or 4-hours per year for a non-accredited entity. Exemptions and further qualifications for CEHs can by found at this link: CEHs Requirements and Why.
Attention: US Navy E5 and up that are rated MMs in A-Division plants that have proper documentation such as DD214 re-enlistment paper, and related Service School Diplomas and Certificates, and explain their duties are encouraged to submit an application. Should you not have Cooling Tower experience then you will be restricted to non-Cooling Tower Chillers until you receive Cooling Tower Training.Contact one of National's Special Liaisons.
First-Class Chiller Engineer License
A First-Class Chiller Engineer License is intended for a supervisory role as an individual shift supervisor in a Chiller Plant. Having overall responsibility as a supervisor for the entire plant including employees and equipment.
The fees for the First-Class Chiller Engineer License are listed in the license application, and engineers can apply for a reciprocal license that is based on holding a license from a recognized State or Municipal licensing entity.
The minimum qualification to sit for examination are: the individual must have 18-months (3000-hours) experience as a Refrigeration/Chilled Water Plant Operator or 6 months (1000-hours) holding a 2nd Class Chiller Engineer License.
The exam is based on what a Shift Supervisor (1st Class) who should be able to do comprehensive thinking and more specifically analysis and synthesize of the chiller or refrigeration plant conditions. Examination is a 55-Question test in a 2-hour period. The components of the exam is made up of the following:
Chiller Engineer's 1st Class Examination Components (Topics)
Number of Component Questions on 55-Question Exam
Math:
7-Questions
Theory:
4-Questions
Operations:
5-Questions
Safety:
5-Questions
Instrumentation:
4-Questions
Electricity:
5-Questions
Cond. & Cooling Tower Water Treat.
6-Questions
Cooling Towers
5-Questions
Refrigerants:
5-Questions
Design and Applications:
5-Questions
Auxiliaries:
4-Questions
Study material for Chiller Exam:
HVAC Water Chillers and Cooling Towers: Fundamentals, Application, and Operation, Second Edition and Authored by: Herbert W. Stanford III, Chapters 1-14, and 17
HVAC and Refrigeration Systems, Ronnie J. Auvil, Chapters (Units) 2, 3, 11, 29, 36-37, and 48 (p909-916)
Second-Class Chiller Engineer License
A Second-Class Chiller Engineer License is intended for a non-supervisory role in a Chiller/Chilled Water System, in the role of a Group Leader or Senior Watch Engineer.
The fees for the Second-Class Chiller Engineer License are listed in the license application, and engineers can apply for a reciprocal license that is based on holding a license from a recognized State or Municipal licensing entity.
Minimum qualifications to sit for examination are the individual must have 1-year (2000-hours) of experience in Chilled Water/Refrigeration Plant Operations or 6-months (1000-hours) as a Third-Class Chiller Engineer. It is recommended that a current Universal Refrigerant certificate be held.
The exam is based on what a Group Leader (2nd Class) or Senior Watch Engineer should know or have knowledge to recognize, comprehend and explain the Chiller plant conditions. Examination is a 55-Question test in a 2-hour period. The components of the exam is made up of the following:
Chiller Engineer's 2nd Class Examination Components (Topics)
Number of Component Questions on 55-Question Exam
Math:
4-Questions
Theory:
7-Questions
Operations:
5-Questions
Safety:
5-Questions
Instrumentation:
3-Questions
Electricity:
6-Questions
Cond. & Cooling Tower Water Treat.
7-Questions
Cooling Towers
5-Questions
Refrigerants:
4-Questions
Design and Applications:
4-Questions
Auxiliaries:
5-Questions
Study material for Chiller Exam:
HVAC Water Chillers and Cooling Towers: Fundamentals, Application, and Operation, Second Edition and Authored by: Herbert W. Stanford III, Chapters 1-4, 6-7, 9-13
HVAC and Refrigeration Systems, Ronnie J. Auvil, Chapters (Units) 2, 3, 11, 29, 36-37, and 48 (p909-916)
Third-Class Chiller Engineer License
A Third-Class Chiller Engineer License is intended for a non-supervisory role in the Refrigeration Plant or a plant utilizing a Chiller/Chilled Water System as a Shift Engineer or Watch Engineer.
The fees for the Third-Class Chiller Engineer License are listed in the license application, and engineers can apply for a reciprocal license, which is based on holding a license from recognized State, Municipal, Federal and Third-Party licensing entities.
Minimum qualifications to sit for examination are: the individual must have 6-months (1000-hours) of experience in Chilled Water/Refrigeration Plant Operations and it is recommended that a current refrigerant handling certificate be submitted.
The exam is based on what a Shift Engineer (3rd Class) or Watch Engineer should know or have knowledge to recognize and communicate Chiller or Refrigeration plant conditions. Examination is a 55-Question test in a 2-hour period. The components of the exam is made up of the following:
Chiller Engineer's 3rd Class Examination Components (Topics)
Number of Component Questions on 55-Question Exam
Math:
2-Questions
Theory:
9-Questions
Operations:
5-Questions
Safety:
5-Questions
Instrumentation:
2-Questions
Electricity:
7-Questions
Cond. & Cooling Tower Water Treat.
8-Questions
Cooling Towers
5-Questions
Refrigerants:
3-Questions
Design and Applications:
3-Questions
Auxiliaries:
6-Questions
Study material for Chiller / Refrigeration Exam:
HVAC Water Chillers and Cooling Towers: Fundamentals, Application, and Operation, Second Edition and Authored by: Herbert W. Stanford III, Chapters 1-4, 7, 9-13
HVAC and Refrigeration Systems, Ronnie J. Auvil, Chapters (Units) 2, 3, 11, 29, 36-37, and 48 (p909-916)
