Refrigerant Releasing Procedure - Panasonic OCU-CR1000VF8A Service Manual

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.
Low pressure
service valve
Joint valve
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.
Caution
The rapid release of refrigerant could cause refrigeration oil to be released together
with refrigerant.
Nut
8
High pressure
service valve
Nut
Service piping
(SPK-TU125)
Access port is
open.
Back seated positon
Turn the stem fully
counterclockwise