TM 9-4120-385-14
6.
Slowly open both unit service valves and allow refrigerant to flow into system
until guages indicate 50 psig (3.5 kgkmz).
7.
Close both unit service valves, charging manifold valves, and refrigerant drum
valve.
8.
Disconnect refrigerant cylinder.
9.
Connect nitrogen regulator to nitrogen cylinder.
10. Connect nitrogen regulator to center hose on charging manifold. See Figure 5-2.
