Greenco 1RV0020, Руководство по эксплуатации

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temperature rise above the allowable temperature.
 Make sure that the environmental conditions comply with the
protection class of the drive motor (according to the nameplate).

Make sure that the base for placement/mounting base is even.
 To warrant a sufficient cooling, make sure there is a clearance of
minimum 50cm between the pump and nearby wall.
 Make sure that no temperature sensitive parts (plastics, wood,
cardboard, paper, electronics) will touch the surface of the vacuum
pump.
 Make sure that the installation space or location is vented so that a
sufficient cooling of the vacuum pump is warranted.
 Make sure that the vacuum pump will not be touched inadvertently
during operation, provide a guard if appropriate
 Make sure that the oil sight glass (83) will remain easily accessible if
the oil change is meant to be performed on location:
 Make sure that the oil drain port (95), the oil filter (100) and the oil fill
port (88) will remain easily accessible.
 Make sure that enough space will remain for the replacement of the
exhaust filter(s) (120).
Suction Connection
In case the inlet gas can contain dust or other foreign solid particles:
 Make sure that a suitable filter (5 micron or less) is installed upstream
the vacuum pump.
 Make sure that the suction pipeline fits to the suction connection/gas
inlet (260) of the vaccum pump.
 Make sure that the gas will be sucked through a vacuum-tight flexible
hose or a pipe.
In case of using a pipe
：
 Make sure that the pipe will cause no stress on the vacuum pump's
connection, if necessary use bellows.

In case of very long suction lines it is prudent to use pipes of large line
sizes in order to avoid a loss of efficiency. Seek advice from your
Geenco representative.
If two or more vacuum pumps work on the same suction line, if the volume
of the vacuum system is large enough to suck back oil or if the vacuum shall
be maintained after switching off the vacuum pump
：
 Provide a manual or automatic operated valve ( =non-return valve)
in the suction line.
(the non-return valve that is installed inside the suction connection is not
meant to be used for this purpose!)
If the vacuum pump is planned to be used for the suction of gas that
contains limited quantities of condensable vapor
：
 Provide a shut-off valve, a drip-leg and a drain valve in the suction
line, so that condensates can be drained from the suction line.
 Make sure that the suction line does not contain foreign objects, e.g.
welding scales.
Discharge connection
It is required that the gas should be discharged without any obstruction; do
not close or plug the discharge pipes or use the vacuum pump for
compressing air.
The following guidelines for the discharge line do not apply, if the aspirated
air is discharged to the environment right at the vacuum pump.
 Make sure that the discharge line fits to the gas discharge connection
(155) of the vacuum pump.
In case of using a pipe
：
 Make sure that the pipe will cause no stress on the discharge
connection, if necessary use bellows.
 Make sure that the line size of the discharge line over the entire
length is at least as large as the gas discharge connection (153) of
the vacuum pump.
In case of very long discharge pipelines it is prudent to use larger line sizes
in order to avoid a loss of efficiency and an overload of the vacuum pump.
Seek advice from your Greenco representative.
Keep the back pressure at the discharge port (155) below 1.3 bar (absolute
pressure) (Check it by starting the vacuum pump when appropriate).
 Make sure that the discharge line either slopes away from the
vacuum pump or provide a liquid separator or a drip leg with a drain
cock, so that no liquids can back up into the vacuum pump.
WARNING
Discharge lines made from non-conducting material can build up
static charge.
Static discharge can cause explosion of potentially existing oil
mist.
The discharge line must be made of conducting material or
provisions must be made against static discharge.
CAUTION
The discharged air contains small quantities of vacuum oil.
Staying in vacuum oil contaminated air bears a risk of damage to
health.
If air is discharged into rooms where persons stay, sufficient
ventilation must be provided for.
CAUTION
Intruding foreign objects or liquids can destroy the vacuum
pump.
CAUTION
During operation the surface of the vacuum pump may reach
temperatures of more than 70
℃
.
Risk of burns!