Installation and
Commissioning
Installation Prerequisites
CAUTION_a
In case of non-compliance with the installation prerequisites, partic
-
ularly in case of insufficient cooling:
Risk of damage or destruction of the vacuum pump and adjoining
plant components!
Risk of injury!
The installation prerequisites must be complied with.
●
Make sure that the integration of the vacuum pump is carried out
such that the essential safety requirements of the Machine Direc
-
tive 98/37/EC are complied with (in the responsibility of the de
-
signer of the machinery into which the vacuum pump is to be
incorporated; note in the Ú EC-Declaration of Conformity)
Mounting Position and Space
●
Make sure that the environment of the vacuum pump is not po
-
tentially explosive
●
Make sure that the following ambient conditions will be complied
with:
–
Ambient temperature: see “Oil”
–
Ambient pressure: atmospheric
● Make sure that the environmental conditions comply with the pro-
tection class of the drive motor (according to the nameplate)
● Make sure that the vacuum pump will be placed or mounted hori-
zontally
● Make sure that in order to warrant a sufficient cooling there will be
a clearance of minimum 20 cm between the vacuum pump and
nearby walls
● Make sure that no heat 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 such
that a sufficient cooling of the vacuum pump is warranted
CAUTION_ac
During operation the surface of the vacuum pump may reach tem
-
peratures of more than 70 °C.
Risk of burns!
●
Make sure that the vacuum pump will not be touched inadver
-
tently during operation, provide a guard if appropriate
●
Make sure that the sight glass (m, 83) will remain easily accessible
If the oil change is meant to be performed on location:
◆
Make sure that the drain port (n, 95), the oil filter (h, 100) and
the filling port (l, 88) will remain easily accessible
●
Make sure that enough space will remain for the removal and the
reinsertion of the exhaust filter (p, 122)
Suction Connection
CAUTION_a
Intruding foreign objects or liquids can destroy the vacuum pump.
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 line fits to the suction connection (d,
260) of the vacuum 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
●
Make sure that the line size of the suction line over the entire
length is at least as large as the suction connection (d, 260) of the
vacuum pump
In case of very long suction lines it is prudent to use larger line sizes in
order to avoid a loss of efficiency. Seek advice from your Busch
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 standard non-return valve that is installed inside the suction con
-
nection 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 vapour:
◆
Provide a shut-off valve, a drip-leg and a drain cock in the suc
-
tion 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
Gas Discharge
The following guidelines for the discharge line do not apply, if the aspi-
rated air is discharged to the environment right at the vacuum pump.
CAUTION_a
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 ventila
-
tion must be provided for.
●
Make sure that the discharge line fits to the gas discharge (c, 155)
of the vacuum pump
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
●
Make sure that the line size of the discharge line over the entire
length is at least as large as the gas discharge (c, 155) of the
vacuum pump
In case the length of the discharge line exceeds 2 m 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 Busch representative!
With unrestricted suction the counter pressure at the gas outlet (c,
155) of the vacuum pump must not exceed 1.3 bar abs 'Absolutdruck
(in case of doubt to be verified during commissioning at a suitable
time).
●
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
Installation and Commissioning RA 0025 - 0040 F
page 6 0870139077 / 051214
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