Panasonic OCU-CR1000VF8A, Service Manual

Page: 8 / 29

Refrigerant Releasing Procedure
1. Preparation for refrigerant releasing
1) Check that the access ports of the high pressure and low pressure service valve have been
closed. (The front seated position)
2) Attach the service piping with the joint valve in "Closed" condition.
3) 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 the nut too tight may deform the packing.
2. Refrigerant releasing
1) Set the evacuation mode.
2) Set the low pressure and high pressure service
valves to the back seated position.
(The access ports are open.)
3) Slowly open the joint valve to release refrigerant.
The rapid release of refrigerant could cause refrigeration oil to be released together
with refrigerant.
Service piping
(SPK-TU125)
High pressure
service valve
Joint valve
Low pressure
service valve
Nut
Nut
Access port is
open.
Back seated positon
Turn the stem fully
counterclockwise
Caution
8