vacuubrand RE 2.5, Instructions For Use Manual

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44 20901559_EN_RE_RZ_V7_230523
Commissioning (operation)
Open / close the gas ballast valve
OFF
ON
>
Turn the black gas ballast cap in any direction to open or
close the gas ballast valve.
The manual gas ballast valve is open if the arrow on the gas
ballast cap is pointing towards the inlet of the vacuum pump
(RE 2.5 / RZ 2.5 / RE 6 / RZ 6) or towards the labeling "GB"
(RE 9 / RZ 9).
>
Evacuate condensable vapors, e. g., water vapor, solvents,
etc., only once the vacuum pump has reached its operating
temperature and with the gas ballast valve open.
>
Do not pump vapor before the pump has reached its oper‑
ating temperature. In case, install an in‑line valve in the inlet
line of the vacuum pump and open it only approx. 30 minutes
after the pump has been started.
>
Operate the vacuum pump without gas ballast only in case of
a clean vacuum system or when no condensable vapors can
occur.
>
To connect inert gas as gas ballast, remove the black gas
ballast cap and install a gas ballast adapter instead.

see chapter: 8.4 Ordering information on page 66 8.4 Ordering information on page 66
.
Open / close the gas
ballast valve