Display messages

‘8000.’

If you press the button once in the rest position, the operating hours will be displayed. The display will automatically start from the factory setting of the timer, i.e. 8,000 hours. 

The UV-C lamp operates at 100% radiation for up to 8,000 hours. After 8,000 operating hours, the UV-C radiation will weaken, and may be insufficient to obtain the desired results. If the device is switched off and then on again, the hour counter will start counting backwards from the value it had when it was switched off.

‘t-LO’

If you press the button twice in the rest position, the indication ‘t-LO’ will appear. This means: The low position of the air circulation. The ventilator is hereby set for an air circulation of 25 m3 per hour, and the device is virtually silent. The low air circulation can be set by pressing and holding the button for 3 seconds while the ‘t-LO’ indication is visible on the display. When the hour digits start blinking, you can set the hour at which the device should switch to the low position. The hours will start counting upwards as soon as the button is pressed. You can set the desired hour by briefly pressing the button again. The minutes will start blinking 5 seconds after you have released the button, and you can then set the minutes. The settings will be saved, and the current time will be displayed after 5 seconds.

‘t-HI’

The ‘t-HI’ indication will appear if you press the button three times in the rest position. This means: The high position of the air circulation. The ventilator hereby is set for an air circulation of 50 m3 per hour. The high air circulation can be set by pressing and holding the button for 3 seconds when the indication ‘t-HI’ is visible on the display. When the digits for the hours start blinking, you can set the hour at which the device should switch to the high position. The hours will start counting upwards as soon as the button is pressed. You can set the desired hour by briefly pressing the button again. The minutes will start blinking 5 seconds after you have released the button, and you can then set the minutes. The settings will be saved, and the current time will be displayed after 5 seconds.

‘SEt’

The ‘SEt’ indication will appear if you press the button four times in the rest position. This means: Set clock. The real time clock is hereby set. The clock can be set by pressing and holding the button for 3 seconds when the ‘SEt’ indication is visible on the display. You can set the hours when the digits for the hours start blinking. The hours will start counting upwards as soon as the button is pressed. You can set the desired hour by briefly pressing the button again. The minutes will start blinking 5 seconds after you  have released the button, and you can then set the minutes. The settings will be saved, and the current time will be displayed after 5 seconds.

‘rSt’

The ‘rSt’ indication will appear if you press the button five times in the rest position. This means: Reset. This option is used to reset the timer. After you have replaced the lamp and the filter, you can reset the timer to 8,000 hours. The timer can be reset to 8,000 hours by pressing and holding the button for 3 seconds while the ‘rSt’ indication is visible on the display. The settings will be saved, and the current time will be displayed after 5 seconds.

‘0000.’: The display will indicate 0000 when the 8,000 operating hours of the lamp have expired. The actual time will blink in the display, alternating with four blinking zeros. The filter and the UV-C lamp must now be replaced. See item ‘rSt’ for resetting the timer.

‘FAIL’: The software stops if there is a problem with the real time clock or with the ventilator connection. As soon as the device is switched on, the program will carry out a self-test to check the proper operation of the product. The units that are checked are the real time clock and the ventilator connection. Any problems with these items will be indicated on the display.