Refrigerant Piping Service and Maintenance
Check the liquid and suction lines to make certain that they do not contact one another. Heat will transfer to the suction line if there is bare contact between the two.
Check refrigerant line connections for proper seat at the evaporator coil. These are nonreusable connecting valves that must be 100 percent seated for effective operation. If these valves have not been 100 percent seated, then the metal diaphragm will obstruct the line and restrict the flow of refrigerant. If this condition is suspected, use a wrench on the stationary fitting of the valve as shown in Figure 9-28 while tightening the nut with another wrench.
Related posts:
Dimensional Analysis,Similitude:Cavitation
Axial-Flow Turbines,Mean-Line Analysis and Design:Thermodynamics of the axial turbine stage.
Steam Heating Systems:Exhaust-Steam Heating
Pipes, Pipe Fittings, and Piping Details:Pipe Supports
TECHNIQUES FOR STUDYING AND TEST-TAKING:HOW TO TAKE AN EXAM
Fireplaces, Stoves, and Chimneys:Chimney Flues and Chimney Liners
Heating Fuels
Gas and Oil Controls:Solenoid Gas Valves
Steam Heating Systems:Gravity Steam Heating Systems