1
3
2
Fig. 7:
Cooling water connection
1 Cooling water outlet
3
Oil/water heat exchanger
2 Cooling water inlet
Making the cooling water connection
1. Connect the cooling water lines:
– Cooling water inlet
– Cooling water outlet
2. Ensure that the cooling water outlet is unpressurized.
3. Use a dirt trap in the inlet.
4. Open the cooling water flow and fill the cooling system until cooling water escapes at the cooling
water outlet.
5. Adjust the cooling water flow on site.
5.6 Establishing mains connection
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
► Before the installation, check that the connection leads are voltage-free.
► Make sure that electrical installations are only carried out by qualified electricians.
► Provide adequate grounding for the device.
► After connection work, carry out an earthed conductor check.
CAUTION
Danger of injury from moving parts
After a power failure or a standstill as a result of overheating, the motor restarts automatically. There
is a risk of injury to fingers and hands if they enter the operating range of rotating parts.
► Safely disconnect motor from the mains.
► Secure the motor against reactivation.
► Dismantle the vacuum pump for inspection, away from the system if necessary.
NOTICE
Risk of damage from excess voltage
Incorrect or excessive mains voltage will destroy the motor.
► Always observe the motor rating plate specifications.
► Route the mains connection in accordance with locally applicable provisions.
► Always provide a suitable mains fuse to protect the motor and supply cable in the event of a fault.
– Pfeiffer Vacuum recommends the circuit breaker type "K" with slow tripping characteristic.
Installation
26/64
