how the pipe are laid out, and by noting where the suction is still good, it should be possible to logically work out where the stoppage is located.
5.Imagination? Many people, who just have had central vacuum cleaners installed, are making an error in determining the suc- tion, because the sound effects are absent.
Characteristics of the circuit card
1. Soft start
The moment of start is delayed with a TRIAC relay, giving a delay of
2. Low tension LED Auto-polarity *2
The green LED for the power cable, which is on the unit, will always shine when there is current
3. Counter for hours worked *3
Through the use of EEPROM technology (program memory), the card registers two types of timings that the user can easily control, using a simple LED indicator that is placed on the shield of the circuit board.
a. Short time b. Total time
Time of use | LED colour | Meaning | Action |
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15 hours | Green | The vacuum cleaner | Change/control dust |
| Change/control | has been used | bag and press con- |
| Slow flashing | for 15 hours since | firmation button for |
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| last activation of the | 5 seconds |
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| confirmation button |
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Green | < than 400 hrs of use | ||
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Orange | > than 400 hrs of use | Maintenance/inspect. | |
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Red | > than 500 hrs of use | Have the engine serviced | |
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4. Test of functions
After the power cable has been connected, the circuit board performs a test of functions.
If everything is OK, the LED will flash rapidly for a few seconds and then stop. Delay in shutdown. When turning off the vacuum cleaner, a 2 second delay will be added in order to ensure that the pipes and the hose are empty when the unit is turned off. Reset / demo switch *6
Performs the following actions:
Position | Operation | Result |
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Test/demo | Press and release | The board will perform a test |
| the switch | of functions and will go though |
| within 5 seconds | all steps in the previous table |
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| (table 1) |
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Partial reset | If the motor does not | The system will reset the 15 |
| run, press the switch | hour counter to 0, the flashing |
| for 5 seconds | the fashing LED (3) will continue |
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Total reset | Press the swithch | The system will reset the count- |
| for more than 30 | er for total time to zero |
| seconds when the |
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| motor is running |
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7. Circuit breaker *7 |
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The circuit board is | *2 *3 *6 *7 |
equipped with a circuit |
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breaker (Button marked |
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‘‘circuit breaker”. |
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To reset, press the |
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button. |
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