9
Maintenance and service
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Waarrnniinngg!! Before installation or maintenance, the power supply must first be disconnected in order to
prevent potentially lethal electric shocks! Installation or maintenance of this unit should only be carried
out by qualified personnel. The manufacturer is not responsible for any eventual damage or injury
caused by inadequate skills during installation, or through removal of or deactivation of any security
devices.
9.1 Changing the battery
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Waarrnniinngg!! To prevent electric shock, the controller must be disconnected from power before the
battery is changed.
To change the battery:
1. Disconnect the controller from power, and then remove the terminal protection covers (if wall
mounted).
2. Remove the top of the casing by pressing the two tabs on each side of the casing, and then lift up the
top of the casing carefully.
Figure 9-1 Removing the top of the casing.
3. Change the battery. A lithium CR2032 battery is used.
4. Assemble the casing carefully again.
5. Wire the controller, attach the terminal protection covers (if wall mounted), and then power up the
controller.
9.2 Changing the fuse
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Waarrnniinngg!! To prevent electric shock, the controller must be disconnected from power before the fuse
is changed.
To change the fuse:
Regio
Eedo
manual, Rev. D
69