WEEK #11 TOPICS
- Checking refrigerant charge using superheat & subcool methods (EPA study guide pg. 17, textbook pgs. 166-167, and video; see additional resources #21 ).
- Checking refrigerant charge ⁄ A⁄C lab:
- Make the following changes to your notes ⁄ invoice: the unit has a TXV, dry bulb temperature = 55 degrees, condensing pressure = 158 degrees, liquid line temperature = 74 degrees.What is the subcool? Is it OK?
- A⁄C inspection⁄test tasks
- Ferris State exam (Type II and III) OR Mainstream Engineering Type I Open Book exam retake
- On the label of a capactior you find the following: 45 uf ⁄ 5 uf 6%. What do these numbers mean? You measure the capacitor and get the following readings: 41 uf and 5.2 uf. Is the capacitor good? Why or why not?
- Service calls lecture and practice (old textbook page 97+; new textbook page 43+)
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