Notes; Safety; Ventilation And Bleeding - Graf one2clean Manual De Instalación

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2. Notes

2.1

Safety

Observe the national accident prevention regulations during all work. Particularly for inspecting the tanks,
a second person is required for safety reasons.
Furthermore, observe the valid national regulations and standards during installation, assembly, mainte-
nance and repair work, etc.
During all work on the system or parts thereof, always shut down the entire system and secure it against
unauthorised re-start.
Always keep the tank cover closed, except when working in the tank. Otherwise, there is a high risk of an
accident occurring. Only genuine GRAF covers or covers that GRAF has approved in writing must be
used.
GRAF offers an extensive range of accessories, which are all coordinated to one another and can be
expanded to form complete systems. The use of accessories that have not been approved by GRAF re-
sults in the exclusion of the warranty/guarantee.
2.2

Ventilation and bleeding

All tanks must be ventilated and bled. Additional ventilation lines or ventilation openings must be ordered
if necessary. Ventilation lines should be ordered to guarantee natural ventilation (chimney effect).
Bleeding with a free outflow
2. Notes
Bleeding with percolation or an obstructed outflow
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