Where is the line duty device commonly located? What will be ...

[lilldybug07]

Where is the line duty device commonly located?
 
  What will be an ideal response?

Question 2

List operational checks to make during an air conditioning planned maintenance service call.
 
  What will be an ideal response?

[durant1234]

Answer to Question 1

A line duty device senses current and/or temperature in the motor winding. The line duty arrangement is commonly found on compressor motors used for domestic service.

Answer to Question 2

Check for voltage drop in power wire, voltage drop across contactor contacts, amp draw, airflow, system pressures, superheat, subcooling, temp drop across evaporator coil.

[lilldybug07]

Thanks for the timely response, appreciate it

[frankwu0507]

Great answer, keep it coming