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Idiomas disponibles
Idiomas disponibles
Handling and Setting up (pictures Œ, and Ž)
Warning – hot surfaces
Pumps that have reached operating temperature may have a surface
temperature at position (Q) of more than 70 °C!
Do not touch these hot surfaces (see also warning signs).
Suction flange (D), oil filler ports (H, H
plugs (K), gas ballast (U) and oil separator housing (T) must all be easily
accessible. The cooling air entries (E) and the cooling air exits (F) must
be a minimum distance of 20 cm from any obstruction. The discharged
cooling air must not be re-circulated. For maintenance purposes we
recommend a space of 0.4 m.
Note
The VC OXY pumps can only be operated reliably if they are
installed horizontally.
For installations that are higher than 1000 m above sea level
there will be a loss in capacity. For further advice please contact
your supplier.
When installed on a solid base, the pumps may be installed without fixing
down. If the pumps are installed on a base plate we would recommend
fitting anti vibration mounts. This range of vacuum pumps are almost
vibration free in operation.
Installation (pictures Πand )
The installation and initial operation may only be made by
authorised skilled personnel, which is trained over corresponding safety regulations in handling oxygen installations.
The rule of the government safety organisation BGR 500, chapter 2.32 (operating of oxygen installations) or other relevant national stand-
ards must be followed.
1. The vacuum connection (A) is situated on the suction flange (D).
The medium handled can be emitted into the atmosphere through the exhaust port (B) or by utilising an exhaust pipe.
Note
Long and/or small bore pipework should be avoided as this tends to reduce the capacity of the pump.
The exhaust port (B) must not be obstructed or partly obscured.
Caution – The vacuum pump VC OXY is not gastight
It may lead to danger of explosion!
No incorrect oxygen concentration may occur in the vicinity of the vacuum pump. Therefore the installation area must be always aerated
sufficiently.
Warning – Pollution in the suction medium
Suction of pollution in particular organic substances may cause acute danger of explosion!
To protect the VC OXY the operator should install a filter on the suction side.
2. The lubricating oil (for recommended oil see under servicing) must be put into the pump at the oil filler port (H) of the oil separator housing, until
the oil level shows at the top level of the oil sight glass (l). After filling, make sure the oil filler port is closed.
3. The electrical data can be found on the data plate (N) or the motor data plate. The motors correspond to DIN EN 60034 and have IP 54 protec-
tion and insulation class F. The connection diagram can be found in the terminal box on the motor (unless a special plug connection is fitted).
Check the electrical data of the motor for compatibility with your available supply (voltage, frequency, permissible current etc.).
4. Connect the motor via a motor starter. It is advisable to use thermal overload motor starters to protect the motor and wiring. All cabling used on
starters should be secured with good quality cable clamps.
We recommend that motor starters should be used that are fitted with a time delayed trip resulting from running beyond the amperage setting.
When the unit is started cold, over amperage may occur for a short time.
Warning – electrical installation
Danger to life through unprofessional electrical installation!
The electrical installation should only be made by a qualified electrician under the observance of EN 60204. The main switch must be provided
by the operator.
Initial Operation (pictures Πand )
1. Initially switch the pump on (max. two seconds) to check the direction of rotation (see direction arrow (O)). When looking on the motor fan it must
rotate clockwise.
Caution – wrong direction of rotation
Operation with wrong direction of rotation causes damages on the vacuum pump!
We recommend checking the direction of rotation with a phase-sequence indicator.
2. Connect the suction pipe at (A).
3. Run the pump for two minutes using the correct rotation. Stop pump and top up the oil using the oil filler port (H) to the top level (see sight
glass (l)). Repeat this process until the oil pipes are completely full.
On no account open the oil filler port when the pump is operating.
Warning – mixing of organic substances with oxygen can cause explosive mixtures.
Any non compliance may lead to acute danger of explosion!
Assuming that the lubricant could be mixed with organic substances, the oil must be immediately changed.
In the case of an impurity of the vacuum pump with organic substances, the pump must be put out of action and be cleaned by authorised skilled
personnel of Elmo Rietschle.
), oil sight glass (I), oil drain
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