អបអរសាទរពិធីទទួលវិញ្ញាបនបត្របញ្ជាក់ពីប្រព័ន្ធគ្រប់គ្រងគុណភាពតាមស្តង់ដាអន្តរជាតិISO 9001:2015 ដល់វិទ្យាស្ថានជាតិបណ្តុះបណ្តាលបចេ្ចកទេស។ 

Diploma Degree of Air-Conditioning

2 Years full-time and part-time study
105 credits

Nowadays, living standard of people in the city has increased and we noted that the need for air-conditioning in houses, cars, and refrigerator for keeping daily meal fresh are also increased. Thus, service and maintenance of Air-conditioning and Refrigeration are running to support local labor market for repairing and maintaining all those products.

After completed the High Diploma training course of Service and maintenance of Air-Conditioning and refrigeration, students will be able to:

  • Utilize specialist equipments for repairing, installing, and maintaining Air-condition equipments.
  • Install, maintain, and repair Motor, Compressor, Condenser, Evaporator
  • Design Lighting and wiring in buildings
  • Install, repair, and maintain air-conditioning system
  • Analysis and Evaluate troubleshooting
  • Prepare and install freezing room
  • Install, repair, maintain freezing room system
  • Cold load estimation needed in building
  • Install, repair, and maintain Automobile air-conditioning
  • Install, repair, and maintain Chilled Water System
  • Install, repair, and maintain air-condition

Course Subjects:

  • Mathematics
  • Technical Drawing
  • Technical English
  • Electro Technique
  • Basic Computer
  • Technical Mechanic
  • Basic Electronic
  • Hydraulic and Pneumatic
  • Refrigerator service and Maintenance
  • Cold room construction
  • Commercial and Industrial ACR
  • Atomization devices of ACR
  • Thermal of Air conditioning and Refrigerator
  • Enterpreneurship
  • Interpreting plan of Air-Con
  • Freezer room Air-con services and Maintenance
  • Window room Air-con services and Maintenance
  • Split room Air-con services and Maintenance
  • Automotive room Air-con services and Maintenance
  • Workshop practice
  • Thesis + Training work + Graduated examination.

Course Subjects:

  • Run your own business for service and maintenance of Air-conditioning and Refrigerator
  • Pursue to the 3rd year Bachelor Degree in similar course in NTTI and other training institute
  • Employ in any private companies, state-own institutions, organizations, factories,enterprises and any other places needed
  • Take part in the examination in Teacher Training Course for junior level at NTTI
  • Be eligible to take part in any examinations for government officers that is related to Electricity Skill (Ministry of Industrial, Electricity of Cambodia)

Director of NTTI
Name : HE. Yok Sothy
Mobile : 012 667 753
Email :
sothy.yok@ntti.edu.kh

Deputy Director of Administration and Finance
Name : Mr. Mom Somach
Mobile : 012 772 828
Email :
mom_somach@yahoo.com

Deputy Director of Education
Name : Mr. Meas Sarith
Mobile : 012 567 651
Email :
meas_sarith@ntti.edu.kh

Deputy Director of Education
Name : Mr. Ek Phannarann
Mobile : 012 957 684
Email :
ek.phannarann@ntti.edu.kh

Deputy Director
Name : Ms. Peng Lakhena
Mobile : 077 675​​ 727
Email :
peng.lakhena@yahoo.com

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