Sanyo SGP-M2 Procedimientos Y Puntos Técnicos Para La Instalación Del Sistema página 14

3-3. Connecting the refrigerant tubing
1. Remove the fastening rubber.
2. Connect the tubes and perform brazing.
3. Reattach the gas tube, liquid tube fastening panel, and fastening rubber as they were originally.
Balance tube
Valves remain
closed
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 be-
ing 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.
• 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.
Tube connection panel
Gas tube
fastening
rubber
Liquid tube fastening rubber
Fig. 16
Manifold gauge
Gas side
Liquid side
Fig. 17
GB - 14
Balance tube
Liquid tube
Pressure reducing valve
Gas tube