Key Words to Remember in Questions. Valve Positions

Question 1

Suction Service Valve Positions
Normal Operation = ____
Removed to Connect Hose = ____
Position Before Connecting Hose = ____
Position to transfer refrigerant = ____
Position for compressor being isolated and removed = ____

Answer 1

Suction Service Valve Positions
Normal Operation = Cracked off the backseat
Removed to Connect Hose = S.S.V.L.P. transducer
Position Before Connecting Hose = Backseated
Position to transfer refrigerant = Cracked off the backseat
Position for compressor being isolated and removed = Front Seated

Question 2

Filter Drier Service Valve Positions
Normal Operation =____
Before connecting hose = ____
To transfer refrigerant = ____

Answer 2

Filter Drier Service Valve
Normal Operation =Front seated
Before connecting hose = Front seated
To transfer refrigerant = Back seated

Question 3

King Valve or Liquid Line Service Stop Valve Positions
Normal operation = ____
Position before connecting hose = ____
Position to transfer refrigerant = ____
Position to remove refrigerant = ____

Answer 3

King Valve or Liquid Line Service Stop Valve Positions
Normal operation = Back seated
Position before connecting hose = Front seated
Position to transfer refrigerant = Back seated
Position to remove refrigerant = Refrigerant recovery unit

Question 4

Discharge Valve (Similar to suction service valve)
Normal Operation = ____
Removed to Connect Hose = ____
Position Before Connecting Hose = ____
Position to transfer refrigerant = ____
Position for compressor being isolated and removed = ____
Changing Packing = ____

Answer 4

Discharge Valve (Similar to suction service valve)
Normal Operation = Cracked off the backseat
Removed to Connect Hose = D.S.V.H.P. transducer (only difference from suction valve)
Position Before Connecting Hose = Backseated
Position to transfer refrigerant = Cracked off the backseat
Position for compressor being isolated and removed = Front Seated
Changing Packing = Back Seated

Question 5

Crankcase Service Valve
Normal Operation = ____
Transfer Refrigerant = ____

Answer 5

Crankcase Service Valve
Normal Operation = Front seated
Transfer Refrigerant = Back seated