GCE druva 34 Series Instructions For Use Manual page 24

5.6 SEQUENCE OF FUNCTIONS
Both cylinders are full and connected to the unit. The change-over switch lever is pointing to
the right. The cylinder and service gas valves are being opened slowly.
purging
gas
EN
When the right-hand cylinder is empty the pressure reducer switches automatically to the left-
hand cylinder.
purging
gas
The left-hand cylinder is now providing the gas supply, the back pressure decreases slightly.
service gas
outlet
Ready for use / Gas fl ow from right hand cylinder
service gas
outlet
Gas fl ow from left-hand cylinder / Right cylinder empty
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purging
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purging
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