Connecting Electrically
WARNING
_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified per-
sonnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or corresponding national accident prevention
regulation.
●
Electrically connect the drive motor
●
Connect the protective earth conductor
●
Determine the intended direction of rotation with the arrow (stuck
on or cast)
Version with mechanical seal:
●
Make sure that the pump housing (g) is filled with an operating
liquid (usually water) to approx. the shaft centreline (a mechanical
seal shall not run dry)
●
“Bump” the drive motor
●
Watch the fan wheel of the drive motor and determine the direc-
tion of rotation just before the fan wheel stops
If the rotation must be changed:
◆
Switch any two of the drive motor wires
●
Connect the switches for
- level monitoring
- temperature
- pressure
(according to the diagram)
to the system control
Connecting Lines/Pipes
●
Connect the suction line
●
Connect the discharge line
Installation without discharge line:
◆
Make sure that the gas discharge (c) is open
●
Make sure that all provided covers, guards, hoods etc. are
mounted
●
Make sure that cooling air inlets and outlets are not covered or ob-
structed and that the cooling air flow is not affected adversely in
any other way
Filling in Operating Liquid
The handling of the operating liquid supply system is not subject to
these operating instructions (
Ú
separate documentation or furnished
by the operator).
Adjusting the V-belt Tension
●
Make sure that all belts are in their grooves
●
Tension the belt drive to take up all the slack until the belts are
fairly taut
●
Start the drive
●
Continue to adjust until the belts have only a slight bow on the
slack side while operating under load conditions
After several days of operation:
●
Check the tension again
Insufficient tension is often evidenced by slippling (squealing) at
start-up
Recording of Operational Parameters
As soon as the vacuum pump is operated under normal operating
conditions:
●
Measure the drive motor current and record it as reference for fu-
ture maintenance and troubleshooting work
Operation Notes
Use
The vacuum pump is intended for
–
the suction
of
–
non-explosive gases and vapours
The vacuum pump may only be used as contractually agreed with
Busch. The conveyed medium, the operating liquid and the tempera-
ture ranges thereof may not be changed without written consent of
Busch.
Maximum allowed temperatures:
gas dry:
120 °C
gas saturated:
100 °C
operating liquid:
80 °C
The vacuum pump is intended for the placement in a non-potentially
explosive environment.
The vacuum pump is thermally suitable for continuous operation
(100 percent duty).
The vacuum pump is not ultimate pressure proof. Operation with a
closed (“blanked”) suction line will damage the vacuum pump.
CAUTION
_ac
During operation the surface of the vacuum pump may reach tem-
peratures of more than 70 °C.
Risk of burns!
The vacuum pump shall be protected against contact during opera-
tion, it shall cool down prior to a required contact or heat protection
gloves shall be worn.
●
Make sure that all provided covers, guards, hoods etc. remain
mounted
●
Make sure that protective devices will not be disabled
●
Make sure that cooling air inlets and outlets will not be covered or
obstructed and that the cooling air flow will not be affected ad-
versely in any other way
●
Make sure that the installation prerequisites (
Ú
page 5: Installation
Prerequisites) are complied with and will remain complied with,
particularly that a sufficient cooling will be ensured
CAUTION
_a
The shaft of the vacuum pump is sealed by means of a mechanical
seal (433.0).
Starting the vacuum pump without operating liquid will result in
mechanical seal failure.
Never start the vacuum pump without operating liquid.
LA 0053-1111 A, LB 0063-1011 A
Installation and Commissioning
0870150638 / 091222
page 9
Summary of Contents for DOLPHIN LA 0053-0143 A
Page 27: ......
