Tri Star Career Compact’s new summer program -

“Refrigerant Fundamentals: Good Service and Installation Practices”

will help everyone from newbies to experts!

We are excited to announce a new HVAC class being taught by Don Gillis, Senior Technical Trainer for Chemours. Don is a nationally known speaker and trainer with 30+ years experience in the HVACR industry and 24 years of those in the field.

20-hour course

Class starts June 27th and runs through August 1st, Tuesdays and Thursdays from 5:30-7:30 p.m.

Class Highlights:

• 4 main components of a DX Systems
• 3 states of refrigerants
• Defining super heat/sub-cooling
• Latent VS Sensible heat
• Understanding ACR pipe sizing
• Brazing with nitrogen
• System leak testing
• Micron gauges vs mercury gauges
• Using two stage vacuum pumps
• Copper plating
• Charging a system with blends
• Pressure temp charts
• Mobile apps PT
• Taking super heat/sub-cooling readings
• Trouble shooting exercises
• Filter driers (liquid/suction0
• TEV’s and EEV’s
• TEV’s Bulb Location/Trouble Shooting
• Sight glasses
• Refrigerants and lubricants
• Recovery
• Understanding glide
• Compressor fundamental
• Calculating compressor ratio
• Using compressor performance charts (curve charts
• Basic compressor electrical trouble shooting (single/three phase)
• Electrical acronyms: LRA, MCC, RLA
• Compressor mobile apps
• Trouble shooting compressor and system issues
• Working with new A2L mildly flammable refrigerants

Cost is: $325.00 per person

To register: Call Marcia Helentjaris or Brenda Dorner at 419-586-7060
Tri Star Career Compact 7655 St. Rte. 703, Celina, Ohio