TM9-4120-400-14
FLUSHING THE REFRIGERANT SYSTEM. - continued
5-13.
k.
Close the suction line service valve and move the discharge line from the valve at point 3 to the tubing at
point 2.
l.
Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
m. De-energize the bypass solenoid valve by disconnecting the dc voltage source from pins A and B of plug
P8.
n.
Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
o.
Uncap the tubing at points 4 and 5.
Disconnect the pump discharge line from the tubing at point 2 and connect it to the tubing at point 5.
p.
Disconnect the recovery line from the tubing at point 1 and connect it to the tubing at point 4.
q.
r.
Cap the tubing at points 1 and 2.
s.
Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
t.
Move the pump discharge line from the tubing at point 5 to the valve at point 6. Cap the tubing at point 5.
u.
Open the discharge line service valve (point 6).
v.
Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
w. Switch the pump lines so that the discharge line is connected to the tubing at point 4 and the recovery line
is connected to the valve at point 6.
x.
Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
Remove the cap from the tubing at point 2. Disconnect the pump discharge line from the tubing at point 4
y.
and connect it to the tubing at point 2. Cap the tubing at point 4.
z.
Disconnect the pressure equalizer solenoid valve plug P9 from receptacle J9.
aa. Energize the pressure equalizer solenoid valve by applying 28 volts dc across pins A and B of plug P9.
ab. Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
ac. Remove the cap from the tubing at point 5.
ad. Remove the pump discharge line from tubing at point 2 and connect to the tubing at point 5.
ae. Remove the recovery line from the valve at point 6 and connect it to the tubing at point 2. Close the valve
at point 6.
af. Start the pump and flush the line for approximately 10 minutes, then turn the pump off.
ag. De-energize the pressure equalizer solenoid valve by removing the voltage source from pins A and B of
plug P9.
ah. Disconnect the discharge and recovery lines from the tubing and remove all caps from the tubing.
5-35