Project C-10 Pulling a Vacuum and adding R134a Freon Pt. 33 

Today we learn how to evacuate and pull a vacuum on automotive air conditioning (A/C) systems using R134a or R12 refrigerants. Discover why pulling a vacuum on an A/C system is crucial, how A/C systems work, and the components involved such as the A/C compressor, condenser, Receiver Drier, expansion valve, orifice tube, and evaporator. Also we install a trinary switch.
Vacuum pump and Gauges:
www.amazon.com...
Thermostat:
www.amazon.com...
R134a Freon:
www.walmart.co...