4. Replace the unit in reverse order.
￭ Replacing the ZCU-12 control unit battery
The control unit battery can be changed with the help of the battery ejector (a in the
drawing below). The ejector is included on the battery slot. The battery is of type CR2032.
1.
Stop the drive and do the steps in section Electrical safety precautions (page 15)
before you start the work.
2. Move the battery ejector into the battery slot on the battery.
3. Carefully pull the battery out of the battery holder.
4. Carefully put a new CR2032 battery into the battery holder.
Maintenance 157
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