This Unit provides instruction in the areas of refrigerant evaporators, metering devices, refrigeration system controls, refrigerant tables, refrigerant properties and characteristics, and refrigerant designations. Evaporator types include gravity coils, brine units, cold plate, shell-and-tube evaporators and blower evaporators. Refrigerant controls include pressure controls, temperature controls, differential controls, thermostat expansion valves, evaporator pressure regulators, suction pressure regulators, solenoid valves, and reversing valves. This Unit also includes instruction on refrigeration system piping, refrigerant recovery, and recycling and reclamation procedures.
Contents:
Lesson 1 Refrigeration Evaporators
Lesson 2 Defrosting Methods
Lesson 3 Capillary Tubes
Lesson 4 Thermostatic Expansion Valves (Part 1)
Lesson 5 Thermostatic Expansion Valves (Part 2)
Lesson 6 Refrigeration System Controls
Lesson 7 Refrigerant Tables
Lesson 8 Refrigerant Properties and Characteristics
Lesson 9 Refrigerant Designations
Lesson 10 Oil in Refrigeration Systems
Lesson 11 Recover, Recycle, Reclaim
Lesson 12 Safe Handling of Refrigerants and Cylinders
Lesson 13 Refrigerant System Piping (Part 1)
Lesson 14 Refrigerant System Piping (Part 2)
Lesson 15 Retrofits and Disposal Requirements