Mitsubishi Electric ECOV-X37VA Manuel D'installation page 36

2)Procedure to operate the check joint
• Remove the cap, and turn the valve rod with a 4-mm Allen wrench. Turn the valve rod counterclockwise to open the valve,
and clockwise to close it.
• Tighten the cap to a torque of 15 Nꞏm at the completion of valve rod operation.
Failure to replace the cap will lead to refrigerant leakage.
Do not damage the refrigerant sealing inside the cap.
• Securely tighten the cap on the charge port to a torque of 6 Nꞏm.
Failure to tighten the cap will lead to refrigerant leakage.
• The type of screw used for the check joint in the condensing unit is 7/16-20 UNF.
3)Procedure to operate the refrigerant service valve (ball valve) <suction>
• Remove the cap, and turn the valve rod with pliers. Turn the valve rod counterclockwise to open the valve, and clockwise to
close it.
• Tighten the cap to a torque of 13.5 to 20 Nꞏm at the completion of valve operation.
Failure to replace the cap will lead to refrigerant leakage.
Do not damage the refrigerant sealing inside the cap.
8-2-7. Parts names
Refrigerant service valve
(three-way valve) <injection>
Refrigerant service valve
(three-way valve) <liquid>
WT09614X03_GB
Service port
Refrigerant flow
direction
Cap
Wrench hole
Cap
36
Refrigerant service valve
(ball valve) <suction>