Piping connection
Warning.
Please follow the following procedures, during the piping connection work is carried out.
If the procedures are not followed properly, the refrigerant and valve sheet might gush out from the ball valve. It might cause the injury.
In case of Brazing type
1.Open the ball valve cap before removing the
position.
2.Please repeat to close and open the ball valve of gas and liquid side at the same time (3 times or more). And finally make sure the ball valve is at close position.
CLOSE | OPEN |
3. Cut part A (two places) of the
CUT
CUT
Caution
There will be small amount of refrigerant gushed out of the
4.Make sure that the ball valve is wrapped with enough wet cloth, during the brazing of the
enough wet cloth
5.Please make sure the ball valve is cool enough when removing the
6.When the piping connection begins. Again, make sure that the ball valve is wrapped with enough wet cloth, during the brazing for cooling the ball valve. Make sure the temperature of ball valve is below 100 degree centigrade. (If the temperature of the ball valve is over 100 degree centigrade, the refrigerant and valve sheet might gush out from the ball valve. It might cause the injury.)
7.Before charging the refrigerant, vacuum the pipes to clear all the air and water.
8.Charge the additional amount of refrigerant according to the table.
9.Turn the knob of the ball valve to ’open’ position after leak check.
10.Finally, put the cap back to the ball valve.
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