Rietschle Thomas DRUVAC KTA 40/4 Instructions De Service page 6

F
F
E
F
F
Handling and Setting up (pictures
The filter housing (S) should be easily accessible. There must be a minimum space of 40 cm in front of the suction grid (G) and end cover (b) for
servicing. Cooling air entries (E) and cooling air exits (F) on one sided cooling exit (picture
exit (picture ), must have a minimum distance of 30 cm from any obstructions. The discharged cooling air must not be re-circulated.
The KTA /4 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 pressure vacuum pumps are almost vibration free in operation.
Installation (pictures and
These units must not be operated without the standard pressure and vacuum regulating and limiting valves fitted so that the
maximum pressure or vacuum is not exceeded (see data plate).
For operating and installation follow any relevant national standards that are in operation.
) ➝ higher vacuum and at (A
1. Vacuum connections at (A
1
Long and/or small bore pipework should be avoided as this tends to reduce the capacity of the pressure/vacuum pump.
2. 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.).
3. Connect the motor via a plug-connector (J) if fitted or via a relevant direct on-line 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.
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 (picture )
Maximum number of starts per hour: 12 (KTA 40 - 80), 10 (KTA 100 / 140)
1. Initially switch the pump on and off for a few seconds to check the direction of rotation against the direction arrow (O).
Note (KTA 40 and KTA 50): On this initial start the suction pipework should not be connected. If the pump runs backwards with the
pipework connected a pressure could build up within the housing which could result in damaged rotor blades.
2. Connect the suction pipes at (A
If the length of connection pipework (same pipe diameter as machine connection) is longer than 5 m then we recommend fitment
of ZRK non-return valves to prevent reverse rotation when units are switched off.
The DRUVAC should only be started from stationary.
3. The requested pressure and vacuum ranges can be adjusted by turning the pressure regulating valve (D) and the vacuum regulating valves (C
and (C ) according to the symbols on the top of the regulating valves.
2
Potential risks for operating personnel
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.
A A
1 2
B
to )
)
) ➝ lower vacuum (second vacuum); pressure connection at (B).
2
) and (A ); pressure pipe at (B).
1 2
E
E
) or on the two sided cooling exits (F) at two side cooling
O J
)
1