OI_EC2-XC645CX_A1_A2L_A3_EN_Rev01_866933.docx EC2-XC645CX 18/54
HOW TO DISABLE AN OUTPUT
To disable an output during a maintenance session means to exclude the output from the
regulation.
12.1 How to disable an output during a maintenance session.
1. Push the MAINTENANCE/CLOCK ( ) key for 3 seconds.
2. The LED’s of the first output is switched on, the Lower display shows the “StA” label, while
the Upper display shows the “On” label if the first output is enabled, or the “oFF” label if the
output is disabled for a maintenance section.
With compressor with more steps all the LED’s linked to the compressor and the valves are
switched on.
3. Select the output by pressing the UP or DOWN key.
4. To modify the status of the output: push the SET key, the status of the output starts
flashing, then push the UP or DOWN to pass from “On” to “OFF” and vice versa.
5. Push the SET key to confirm the status and pass to the next output.
EXIT: Push the CLOCK key or wait 30 seconds.
12.2 Output disabled signaling.
If an output is disabled, its led blinks (2 Hz)
12.3 Regulation with some outputs disabled.
If some outputs are disabled, they do not take part to the regulation, so the regulation goes on
with the other outputs.
Running hours of loads
13.1 How to display the running hours of a load.
The controller memorizes the running hours of each load.
To see how long a load has been working follow this procedure:
1. Press and release the “MAINTENANCE/CLOCK ( )” key.
2. The LED of the first output is switched on, the Upper Display shows the “HUr” label, while
the Lower Display shows the shows the running hours of the first output.
3. To see the running hours of the following load press the UP key.
EXIT: Push the key or wait 30 seconds.
13.2 How to reset the running hours of a load.
1. Display the running hour according to the above procedure.
2. Select the load by pressing the UP key.
3. Push the SET key (immediately on the lower display the rSt label is displayed).
4. Hold pushed the key for some seconds till the “rSt” label starts flashing and the lower display
shows zero.
EXIT: Push the CLOCK key or wait 30 seconds.
NOTE: If the SET key is released within 2 seconds, the controller reverts to display the running
hours of the selected loads.
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