9.2 Standard exchange procedure
How to contact us
Product overhauls must be carried out by personnel with manufacturer training. Contact our
nearest service center at the following e-mail address: Pfeiffer Vacuum Service Support.
Depending on the type of malfunction, it may be necessary to return the product to the service center.
Exchange procedure for replacement products
To proceed with a standard exchange, key steps must be followed in sequential order:
1. Draining the water circuit
2. Disassembling the electronic drive unit
Diagnosis of the defective component
►
Replace the electronic drive with one of the same reference.
–
If the problem persists, it means that the pump is causing the problem. In this case, make a
standard exchange.
–
If the problem is resolved, it means that the electronic drive is defective. In this case, only the
electronic drive unit must be returned to the service center. (see chapter “Disassembling the
electronic drive unit”).
Standard exchange
►
To carry out a standard exchange of the electronic drive unit and magnetically levitated pump, the
procedure described in the pump operating instructions must be followed.
Read the Service request procedure and fill in the declaration of contamination when returning products
to our service centers (see chapter “Service solutions by Pfeiffer Vacuum”, page 51).
9.2.1 Draining the water circuit
The water must be drained from the water circuit to prevent the pipework from freezing during transport.
To do this, users will need to provide flexible tubes and connections as well as a compressed air circuit
(pressure of 2 to 5·10
3
hPa).
Fig. 9: Draining the water circuit
1 Pipe for compressed air supply 3 Container (capacity > 1 liter)
2 Water drain pipe
Water circuit drainage procedure
1. Disconnect the water circuit from the WATER IN and WATER OUT connections (see chapter
“Man/machine interface”).
2. Connect the drain pipe to a pump water connector.
3. Place a container below the connectors (total water volume greater than 1 liter).
4. Connect the other connector to a compressed air circuit.
5. Inject compressed air into the water circuit until the water has been completely evacuated.
Maintenance
45/60
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