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4.2 Überprüfen Ablassventil • Testing discharge valve
❶
Connect a differential pressure kit
❷
Open ball valves 1 and 2
❸
Close shutoff valves
❹
●
❺
Open shutoff valves
2
1
Slowly open the vent valve in zone 1 (inlet
pressure zone) on the differential pressure
measuring equipment until the differential
pressure starts to fall. Adjust the vent
discharge until the water is emitted at a
flow rate of one drip per second and note
the corresponding differential pressure as
the opening point of the discharge valve.
The opening pressure must be above
●
0.14 bar, otherwise a malfunction of the
discharge valve is present. Possible
causes for this are dirt or a mechanical
defect.
❻
Close ball valves 1 and 2
4.3 Ausbau Kartuscheneinsatz • Removal of valve cartridge insert
❶
Close shutoff valves
❷
Briefly vent the appliance
through the ball valves
❸
Unscrew the valve cap
from the housing
2
1
2
1
3
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