A31003-H8100-J100-01-7631, 09/2021
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OpenScape Branch 550 / 550HA, Installation Guide
Serviceability Features
4.1
OpenScape Branch 550 / 550HA Maintenance
Unify Software and Solutions GmbH & Co. KG systems only require minimal
maintenance and care to maintain correct operation.
Wipe the product with a soft dry cloth if required
Remove persistent dirt using a soft, slightly damp cloth (only use a mild detergent).
4.2
How to Replace the Fan Assembly
Before replacing the fan assembly, read the following instructions:
Operation is permitted only with a functional fan assembly!
Replace a defective fan assemble only with an original fan assembly.
Fan assembly replaceable during operation
Replace fan only by qualified personnel or a suitably instructed persons aware of the
associated dangers. Before removing the fan assembly, wait until the fans have totally
stopped. Keep hands and fingers away from rotating fan parts.
To replace the fan assembly, proceed as follows:
Loosen the two knurled screws on the fan assembly (Figure 15, pos. 2)
Pull out the fan assembly to disconnect the fan assembly from the internal fan
control socket.
Lift the fan assembly upwards as shown (Figure 5) to remove from the fan
compartment.
