EN
Page 25/44
To ensure a continuous supply of gas the right-hand cylinder should be replaced promptly.
To do this the change-over switch lever is switched to the left-hand side. The back pressure
increases slightly.
For cylinder replacement the cylinder valve and service gas valve on the right-hand side are
closed. The residual pressure is released by opening (and closing) the purging gas valve. The
new cylinder is connected to the unit.
The gas supply is still being provided by the left-hand cylinder.
Once it is empty, automatic change-over to the righthand cylinder ocurs. Back pressure
decreases slightly as a result.
The entire procedure can be repeated from the start once the change-over switch lever has
been switched back to the right-hand side and the left-hand cylinder has been replaced.
The described change in back pressure during control lever switching lever and automatic
change-over is in accordance with principle and is required for automatic change-over.
purging
gas
service gas
outlet
purging
gas
Gas fl ow from left-hand cylinder / Right cylinder replacement
purging
gas
service gas
outlet
purging
gas
Left cylinder is empty / Gas fl ow from right hand cylinder
