Procedure:
1.  Confirm that the 2- and 3-way valves are opened.
2.  Connect the charge hose with the push pin of Handle 
Lo to the 3-way valve’s gas service port.
3.  Open the Handle Lo manifold valve to purge air 
from the charge hose for 5 seconds and then close it 
quickly.
4.  Close the 2-way valve.
5.  Operate the air conditioner in cooling mode. Cease 
operations when the gauge reaches 0.1 MPa  
(14.5 Psi).
6.  Close the 3-way valve so that the gauge rests 
between 0.3 MPa (43.5 Psi) and 0.5 MPa (72.5 Psi).
7.  Disconnect the charge set and mount the caps of  
service port and 2- and 3-way valves.
8.  Use a torque wrench to tighten the caps to a torque 
of 18N.m.
9.  Check for gas leakage.