Vents PU SENS 01 A11, Руководство пользователя

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PU SENS 01
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Battery replacement
The battery keeps the internal clock running while the unit is disconnected from power supply.
If the unit is disconnected from power supply and the battery is low, the clock stops and the day and time settings are reset. This leads
to incorrect date and time indication when the unit is on and, as a result, to incorrect scheduled operation of the unit. In this case, the
battery should be replaced.
To replace the battery use a new battery only.
1. Disconnect the unit from power supply.
2. Remove two screws in the bottom part of the casing.
3. Pull the top part of the casing aside to allow access to the upper circuit board. Replace the battery. The control panel uses a
CR1220
lithium battery.
4. Assemble the control panel in the reverse order. If the terminal block wires on the upper circuit board were unplugged make sure to
reconnect them correctly. Failure to reconnect the wires properly may knock the equipment out of service.
5. Connect the panel to the power supply and set the current date and time.
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