Panasonic OCU-CR1000VF8A, Service Manual

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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

1 N•m is recommended for the nuts.
Note: Fastening the nut too tight may deform the packing.
4. After completing service operation
1) After completing service operations such as evacuation
and refrigerant charging, turn the stem of the high
pressure and low pressure service valves clockwise
as far as possible. (The access port is 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

1 N•m is
recommended. (Refer to
“3. Fastening the service piping”.)
5) Check the 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.
Service Pipe Connection/Disconnection Method
Service piping
(SPK-TU125)
High pressure
service valve
Joint valve
Low pressure
service valve
Nut
Nut
Access port is
closed.
Front seated positon
Turn the stem fully
clockwise
Nut (Included with the valve)
Gland nut
6