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T
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Handling and Setting up (pictures
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Pumps that have reached operating temperature
may have a surface temperature at position (Q)
of more than 70°C.
WARNING! Do Not Touch.
Filter housing (D), oil filler ports (H, H
1
), oil sight glass (I),
oil drain plugs (K, K
1
), 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 have 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 0.5 m
in front of the filter housing and oil separator.
The VCAH and VCEH 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
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)
For operating and installation follow any relevant national standards that are in operation.
1. The vacuum connection (A) is situated on the filter housing (D).
The air handled can be emitted into the atmosphere through the exhaust port (B) or by utilising an exhaust pipe.
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.
2. The lubricating oil (for recommended brands see under servicing) can be put into the pump at the oil filler port (H) of the oil separator housing,
until the oil level shows at the upper mark 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/VDE 0530 and have IP 54
protection and insulation class B or 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, overamperage may occur for a short time.
5. Unloading valves (optional extra)
If a vacuum pump is started utilising a star/delta starter it is an advantage to fit an unloading valve; when starting the pump on star the unloading
valve opens and unloads the start of the pump. When the motor has reached normal speed it is switched into delta, the valve closes and the
pump begins to evacuate the system.
The electrical installation may 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
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and
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)
1. Initially switch the pump on and off for a few seconds to check the direction of rotation against the
direction arrow (O).
2. 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 correct level (see sight glass (l)). Repeat this process until the oil cooler is completely full.
On no account open the oil filler port when the pump is operating.
3. Connect the suction pipe at (A).
4. Vacuum regulating valve (optional extra):
The vacuum can be adjusted by turning the regulating valve according to the symbols as indicated on
the top of the regulating valve.
Potential risks for operating personnel
1. Noise Emission: The worst noise levels considering direction and intensity measured according to DIN
45635 part 3 (as per 3. GSGV) are shown in the table at the back. When working permanently in the
vicinity of an operating pump we recommend wearing ear protection to avoid any damage to hearing.
2. Oil mist in the Exhaust Stream: Even with the high efficiency oil mist eliminator the exhausted air could
still contain extremely low amounts of oil mist which can occasionally be detected by smell. Permanent
inhalation of these mists may result in health problems, therefore it is extremely important to make sure
that the installation area is well ventilated.
