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Maintenance
8
Maintenance
Replacing the sensor
Replacing the lamp
Power failure
8.1 General Information
30
User qualification: trained user,
n
tion' on page 8
Test mode is suitable for checking the correct working order of the
control.
To ensure operation in compliance with the standards, the
ÖNORM and DVGW demand that the UV sensor is changed annu‐
ally and that checks are performed using a calibrated reference
radiometer.
Lamp replacement is indicated by the flashing operating hours dis‐
play. The end of lamp life relay is activated. Reset the operating
hours display after the lamp has been replaced:
1.
Press ⇒ and then P, keep both keys pressed down for a
short time and then release them.
[Count = 0 ?] will then appear in the display.
ð
2.
Press OK within 1 second
ð The operating hours and the number of lamp activations
are deleted.
In the event of a power failure, the current operating data (oper‐
ating hours, number of activations and operating mode, error mes‐
sages) are recorded in the EEPROM. All the values except the
operating mode are reset to the default setting. However, if values
have been changed through programming and saved, these values
are saved in the EEPROM. Once power has returned, the control
will restart automatically.
User qualification: trained user, see
n
fication' on page 8
WARNING!
UV-C radiation
Possible consequence: Serious injuries.
UV-C radiation is harmful to the eyes and skin.
–
Only operate the UV lamp
fitted and installed.
–
Install the UV lamp in the UV system in accord‐
ance with the regulations prior to commis‐
sioning.
Ä Chapter 2.2 'User qualifica‐
Ä Chapter 2.2 'User quali‐
when it is fully
UV-C
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