Sita 405 AL2, Manual Of Installation, Use And Servicing

5 

3.

  Instruction for installation and setting at work 

General premise: 

The installation of the  SINGLE LAMP sterilization units must be carried out 

by  specialized  staff,  scrupolously  following  the  instructions  hereby given. It  has  been moreover 
considered necessary to give some general information about the electrical and water connections. 

Cautions: 

check that the UV panel is not connected to the power supply and that the tap of the 

water to be treated is turned off. 

•

Connect the delivery of the water to be treated to the special water connection  

•

Turn on water and check for possible leaks in any part of the unit 

•

Connect the plug to the current tap 

•

Check that the disinfected water comes out and that the LEDS on the panel of the control board, 

signal the correct working 
Let the disinfected water flow down to outlet for at least 10 minutes before using it, in order to 
make the possible impurities present in the unit drain out. 
NOTE:  it  is  recommended  to  install  a  water  filter  directly  before  the  UV  sterilizer  in  order  to 
remove the suspended particles, eventually present  in  the water to  be treated, which could limit 
the efficiency of sterilization. 

CHECKS 

The SINGLE LAMP UV System is ready for producing disinfected water, once the connection to 
the water system and to the electrical grid is carried out. The unit works automatically, the 
electronical boards which control the signals reaching the control panel, allow the visualization 
(or the sonorization) of the correct working or of anomalies which may occur during the operating 
of the unit. 

MAINTENANCE 

The UV System of  SINGLE LAMP series have been projected and realized by S.I.T.A. Srl with 
simple and functional principles which make the checking procedures and the periodical servicing 
particularly easy. 
The main points which characterize the ordinary servicing are the following:  check quarterly the 
quartz sleeves, which contain the UV lamps, in order to ensure the maximum disinfection, for the 
cleaning. 
Maintenance  work  may  only  be carried out  by personnel  who have been trained and authorized 
for this work by the owner and/or user. The owner and/or user must ensure that the maintenance 
personnel  are familiar with  the safety measures and regulations,  and that they also  comply with 
them, in addition to having read and understood the operating instructions.  
Only 

original 

replacement 

parts 

from 

the 

supplier 

must 

be 

used. 

The following are the recommended service intervals for replacement parts: 
UV lamp change - once per 9000 hours.                                                                                                                                    
UV quartz sleeve clean - frequency depends on the quality of the water. 
O-ring for quartz sleeve-once per year. 

Procedure for the UV lamp replacement (9000 h max.) 

1) disconnect the electrical box from the electrical grid 

2) lift the cover slightly turning, carefully loosen the electrical 4-pins connection, and extract the 

lamp from the quartz sleeve 

3) remove the lamp from the packing, handling it carefully by its ends 

4) insert the new lamp into the quartz sleeve of the UV System 

5) connect the lamp to the electrical connection and put again the cover 

6) connect again the equipment. 

N.B. for the replacement of the lamp it is not necessary to turn water off