Panasonic OCU-CR200VF5 Service Manual page 6

Service Pipe Connection/Disconnection Method
3. Fastening the service piping
Fasten the nuts by hand up to the condition shown below, and then fasten them with a tool.
Fastening torque of 13  1N・m is recommended for the nuts.
Note: Fastening it too tight may deform the packing.
Low pressure
service valve
High pressure
service valve
4. After completing service operation
1) After completing service operations such as the evacuation and refrigerant charging, turn
the stem of the service valve to open it toward the back seated position.
(Check that the access ports of the high pressure and low pressure service valves have
been closed.)
2) Any remaining nitrogen or refrigerant in the service piping should be purged.
3) Detach the service piping.
After detaching the service piping, Install the nut originally used on the service valve by hand.
(Refer to "2. Service piping attachment".)
4) Fasten the nut by using a tool. Fastening torque of 13  1N・m is recommended.
(Refer to "3. Fastening the service piping".)
5) Check Gland nut loosening of the low pressure and high pressure service valves and fasten
them if any looseness exists. Fastening torque is 10  2 N・m.
Gland Nut
Nut (Included with the valve)
6
Service piping
(SPK-TU125)
Joint valve