• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

Card Range To Study



Play button


Play button




Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

10 Cards in this Set

  • Front
  • Back
When the service valve is fully back seated, what port is closed?
the service valve located at the receiver outlet is known as?
king valve
to isolate the compressor from the rest of the sealed system you should fully?
Front seat both the suction and discharge service valves
Which service valve should never fully front seat while the system compressor is in operation?
Discharge service valve
What will happen if you fully front seat the receiver king valve while the system compressor is in operation?
Low side operating pressure will fall, if allowed to run long enough the compressor will pump all the refigerant into the highside of the system pulling the low side into a vacuum.
When a service valve is fully front seated what port is closed?
When the service valve is in the mid-seated position, what port is closed?
Nothing,all ports are open
What is the normal operating position of the service valves?
Fully backseated
to minimize refrigerant loss when removing manifold gagues hoses from the system using service valves what is the sequence of stepr of removing?
Back seat the discharge service valve; backseat both manifold gauge valves; allow the compressor to draw the refrigeratant into the system low side; back seat the suction service valve then remove both manifold hoses.
What will happen if the suction service valves is fully front seated while the system compressor is running?
Low side of the compressor and low side manifold gauge only will fall into a vacuum, if the compressor is allowed to run you can charge refrigerant vapor into the system faster. all of the refrigerant is trapped on the highside and low side of the system.