× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
Home Q & A Board Other Fields Homework Help Trades and Apprenticeship
New Topic  
Tatu Tatu
wrote...
Go to Answer
Posts: 491
Rep: 0 0
6 years ago
A system that is undercharged will operate with:
 
  A) A high subcooling and a high superheat. B) A low subcooling and a high superheat.
  C) A high subcooling and a low superheat. D) A low subcooling and a low superheat.

 Q. 2

What should the service technician do if a blown fuse is found in the unit disconnect switch during the preliminary inspection?
 
  A) Check all major loads for shorts and grounds.
  B) Replace the fuse with one a size larger to prevent nuisance problems.
  C) Replace the fuse with one of the same size and turn the disconnect switch back on.
  D) Replace the fuse with a copper pipe, turn the disconnect on, and check the wire to see if it is getting warm.

 Q. 3

After replacing a blown fuse in a unit disconnect, the technician should:
 
  A) Check the resistance of every system component.
  B) Check the frequency and phase angle of the voltage at the unit with the unit operating.
  C) Swap some wires around to see if it helps.
  D) Check the system amp draw and compare it to the data plate rating.
Read 82 times
2 Replies
Replies
Answer verified by a subject expert
Ashestreen22Ashestreen22
wrote...
#1
Posts: 337
Rep: 0 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Tatu Author
wrote...
#2
6 years ago
tremendous help
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1251 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 304
  
 245
  
 56
Your Opinion
Which country would you like to visit for its food?
Votes: 204
Previous poll results: Where do you get your textbooks?