Connecting The Refrigerant Tubing - Panasonic U-16GE2E5 Manual De Instrucciones

3-3. Connecting the refrigerant tubing

1. Remove the rubber washers on the gas and liquid tubes from the pipe connection panel.
2. Connect the tubes and perform brazing.
3. Reattach the gas tube, liquid tube fastening panel, and fastening rubber as they were originally.
Pressure reducing valve
Be sure to perform the following before brazing.
• The rubber that fastens the tubes is damaged easily by heat. Be sure to remove it before brazing.
• Cool the tubes with wet cloths or other materials to prevent the value inside the machine from being damaged
by the brazing heat.
• Be sure to replace the contents of the tube with nitrogen to prevent the formation of an oxide fi lm. (Oxygen,
carbon dioxide or refrigerant may not be used)
• Do not use commercially available oxide fi lm agents (antioxidants). They can adversely affect the refrigerant
and the refrigeration oil, and can cause malfunctions.
• If using fl are connections (for the indoor connectors or other part), apply refrigeration oil to the fl ared part.
* With a 3-way multi system, there will be 3 tubes. Treat each of the tubes in the same way.
Fig. 17
EN - 14
Tube connection panel
Liquid tube fastening rubber
Gas tube
fastening
rubber
Liquid tube
Gas tube
Liquid tube
Gas tube