–
dry,
–
in a dust-free and
–
vibration-free room
Start-up of the vacuum system after storage:
l
Make sure that all protective elements, stoppers or adhesive tapes at-
tached before preservation have been removed
l
Switch on the vacuum system in the sequence described in the chapter
“Installation and start-up”
Installation and start-up
It is important for operating safety to observe the instructions when
installing the vacuum system. Installation must be carried out by qualified
technicians.
Necessary installation instructions
CAUTION
If the necessary installation instructions are not followed and parti-
cularly in the case of inadequate cooling:
Risk of damage to and total destruction of the vacuum system and its
components!
Risk of personal injury!
The necessary installation instructions must be followed.
l
Make sure that the integration of the vacuum pumps in its new envi-
ronment complies with the safety regulations according to the Machi-
nery Directive 2006/42/EC (regarding the responsibility of the manu-
facturer of the vacuum system in which the vacuum pumps are to be
integrated, see information in the EU-Declaration of Conformity).
WARNING
Local regulations regarding the motors and electric control elements
must be observed when installing the vacuum system in potentially ex-
plosive environments. Make sure before start-up that all safety mea-
sures have been followed.
Installation site and installation
l
Make sure that the environment of the vacuum system is not poten-
tially explosive
l
Make sure that the following ambient conditions are fulfilled:
–
Ambient temperature: 0 ... 40 °C (32 ... 104 °F)
–
Ambient pressure: atmosphere
–
Humidity range: 20 to 95%
–
Altitude: up to 1000 m
l
Make sure that the cooling water fulfills the following requirements:
–
Temperature: 10 - 20 °C
–
Water pressure: 2 - 5 bar (relative)
–
Water hardness: < 5° dGH
NOTE:
1° (german degree = 1° dGH) = 1,78° (french degree) = 1,25 e
(english degree) = 17,9 mg/kg CaCO3 (american hardness)
–
Approximate flow rate: 29 l/ min for the standard version (hot vacuum
system)
–
Approximate flow rate: 29 l/ min for cooling DP and MB motors
–
Approximate flow rate: 29 l/ min for cooling vertical silencers (option)
l
Make sure that the cooling water is neutral and clean
l
Make sure that the cooling water outlet is unpressurised
l
Make sure that the nitrogen fulfills the following requirements:
–
Overpressure: 1,5 bar
–
Approximate flow rate: 0 - 200 l/ min
l
Make sure that the ambient conditions correspond to the protection
class of the motor (according to nameplate)
l
Make sure that the vacuum system is placed on or fastened to a hori-
zontal surface
l
Make sure that the vacuum system is level
l
Make sure that the vacuum system is at least 1 m away from any wall
to ensure good cooling
l
Make sure that the vacuum system is easily accessible and that the se-
lected installation site fulfills the requirements for assembly/ disman-
tling
l
Make sure that no temperature-sensitive parts (for example, of plastic,
wood, cardboard, paper, electronic parts) come into contact with the
hot surfaces of the vacuum system
l
Make sure that the installation site or assembly area is ventilated in
such a way that adequate cooling of the vacuum system is ensured
CAUTION
The surface temperature of the vacuum system can exceed 50°C when
the vacuum system is in operation.
Danger of burns!
l
Make sure that no-one can touch the vacuum system accidentally. If
necessary, attach safeguard
l
Make sure that the oil sight glasses are easily accessible
If oil changes are to be made on site:
u
Make sure that the oil drain and oil filler are easily accessible
Unpacking
DANGER
Danger of vacuum system falling or tipping over! The weight of the
vacuum system can kill a person or cause severe crushing.
The ring bolts on the components are not designed to take the full weight
of the vacuum system.
Depending on the dead weight and size of the vacuum system, use a fork-
lift to move it on several pallets.
Or lift the vacuum system usings slings and the appropriate lifting gear to
move the vacuum system or remove the pallets.
Be sure to avoid strain on pipework or vacuum pumps when placing the
slings.
Unpacking of vacuum system:
l
Unpack the vacuum system as near the installation site as possible.
l
Check scope of delivery for completeness.
l
Check the vacuum system for damage.
l
Only remove the vacuum system from pallets at the installation site.
Observe the above safety precautions when doing so.
l
Dispose of packing material as required by current regulations.
Mounting
WARNING
The vacuum system can be damaged by foreign matter in the pipelines!
l
Remove all foreign matter (welding beads, swarf etc.) from the pipe-
lines!
This may be done by flushing or blowing through pipelines.
The installer must ensure that the pipework at the inlet is clean.
l
Set the vacuum system on as level, horizontal surface.
Installation and start-up
COBRA DS 8163 A
Page 16
0870772605
Summary of Contents for COBRA DS 8163 A
Page 34: ......
