P15 STAINLESS STEEL HOUSING MAINTENANCE
If the electrical unit needs to be replaced, first of all the earth connection must be disconnected from the
electrical housing. The entire ballast box must be unscrewed and the earth wiring must be disconnected from
the device.
Unscrew the screw of the ballast box and carefully disconnect the lamp holder from the lamp.
All these parts must be carefully kept, as they are not supplied with the new housing or electrical unit.
WARNING: The unit has power cord with plug attached on the plug, plug
it to a power socket with a Residual Current Device (RCD) or Ground Fault
Circuit Interrupt (GFCI) having a rated residual operating current not
exceeding 30mA.
11. ELECTRICAL UNIT REPLACEMENT
11.1 ELECTRICAL WIRING
WARNING:
If the RCD / GFCI device trips, it means there is fault on the power line grounding. Do not
use this unit. Disconnect the power and have the problem corrected by a qualified service
representative before using. Press the reset button to reset the RDC / GFCI devices after
fixed. It will keeps the circuit shut off and will not reset if the power line problem is not
fixed. It is recommend to test the RCD / GFCI at least once a month.
10. STAINLESS STEEL HOUSING MAINTENANCE
The stainless steel interior can be cleaned with a soft brush. First of all, the UV-C and quartz lamps have to be
removed following the below steps:
1. Unthread the adaptor male - male 2 ½”– 2”. Remove the sight glass from the opposite side of the adaptor.
There are two more threaded adaptors inside the connections. These adaptors make the stainless steel
housing holes to be aligned with the connections and sight glass. These two adaptors are placed in the thread
of the connection and in the thread of the sight glass.
2. Unthread the main union nut from the stainless steel housing, and remove the pressuring connector from
inside the nut.
3. Remove the PVC tee connections from the stainless steel housing using a plastic hammer.
4. Remove the sealing ring from the stainless steel housing.
5. Clean stainless steel housing and then assemble the UV-C system again:
5.1 Introduce the sealing ring on the stainless steel housing.
5.2 Assemble the PVC tee connections taking into consideration that the connections must coincide with the
holes of the stainless steel housing.
5.3 Assemble again the pressuring connector and all the union nuts properly. Note that the adaptors that keep
the position of the connections aligned with the stainless steel housing have to be threaded in a specific
position so that the two holes can be used for an unscrew to help you to thread the adaptor.
OPERATION P12
As soon as the above mentioned model with Timer is switched on, the program will carry out a self-test. The
display will automatically show the following code: 8888 (display test); software version number; 50Hz or 60Hz
indication of the mains frequency.
Following this, the display will show the meter reading:
1. For the models NT-UV40-T and NT-UV75-T: When the UV-C lamp is switched on for the first time, or after the
'Reset' function has been used, the value '9000' will appear on the display. A dot next to the digit on the far
right of the display will blink every second: this indicates that the counter is running.
2. For the models NT-UV130-TF and NT-UV87-TO: When the UV-C lamp is switched on for the first time, or
after the 'Reset' function has been used, the value '9000' will appear on the display. A dot next to the digit on
the far right of the display will blink every second: this indicates that the counter is running. The real lifetime
of these lamps is of 12000 and 10000 hours respectively, but the display can only show 4 digits. You can adjust
the number of hours manually once 3000 hours (for NT-UV130-TF) or 1000 hours (for NT-UV87-TO) have
passed (please find the instructions below).
3. If the UV-C system was used previously, once it is switched on again the display will indicate the last value
before it was switched off. If you increased or reduced the value of the meter manually, the display will indicate
the latest counter reading before it was switched off.
MANUAL ADJUSTMENT
1. Press the button ‘MENU’ and select the option ‘Hr’ by pressing ‘MENU’ again.
2. The flashing number shown on the screen will indicate the hours left for replacing the lamp.
3. Press the button ‘MENU’ to modify the hours.
3.1 Use the buttons
▲
and
▼
to increase or decrease the counter value in steps of 500 hours from the initial
value up to the maximum value of 9500 and the minimum of 500.
3.2 Once to the desired hour is reached, stand off for 10 seconds until it stops flashing and confirm the set
hour chosen.
7.2 UV LAMP LIFETIME METER
The time meter will indicate in the following manner that the lamp must be replaced:
1. From hour position 0672, the display will blink every second. The lamp is to be replaced within 4 weeks.
2. From hour position 0336, the display will blink every half second. The lamp is to be replaced within 2 weeks.
3. From hour position 0168, the display will blink every 1
⁄
4 second. The lamp is to be replaced within 1 week.
4. At an hour position of 0000, the digits will blink continuously, and the meter will not continue to count down.
The lamp must be replaced.
This function allows you to set the clock according to the current time.
1. Press the button ‘MENU’ and use the buttons
▲
or
▼
until you reach the option ‘rest’. Press ‘MENU’ to select.
2. The hour indicator will flash. Press
▲
or
▼
to select the desired hour. Wait for 10 seconds until it stops flashing
to confirm the hour.
3. Press ‘MENU’ to select the minutes, and minute indicator will flash. Press
▲
or
▼
to select the desired value.
Wait for 10 seconds until it stops flashing to confirm the settings.
7.3 CLOCK SETTING
