Sita LCD Series Reference manual

ULTRAVIOLET DISINFECTION
EQUIPMENT FOR THE TREATMENT OF DRINKING WATER
RACK LCD SERIES
UV 80/3 RACK LCD-LCD PLUS
UV 80/4 RACK LCD-LCD PLUS
UV 80/5 RACK LCD-LCD PLUS
MANUAL OF INSTALLATION, USE AND SERVICING
English 01-2012 Rev. A

1
INDEX
1. Introduction ......................................................................................................................................................2
2. General Principles............................................................................................................................................3
3. Instruction for installation and setting at work..................................................................................................4
3.1 Installation scheme recommended..............................................................................................................6
4. The UV Chamber Installation...........................................................................................................................7
4.1 Assembling of the UV chamber...................................................................................................................7
4.2 Detailed drawing of the UV-C chamber.....................................................................................................10
5. Control & Operation .......................................................................................................................................12
5.1 Description of the Control Panel................................................................................................................12
5.2 Rack LCD Electrical Board description......................................................................................................13
6. Display Informations (Troubleshooting) .........................................................................................................14
6.1 Electrical Panel Rack LCD Model..............................................................................................................14
6.2 Electrical Panel Rack LCD Plus Model......................................................................................................16
7. Warranty Conditions.......................................................................................................................................18
8. Declaration of Conformity EC.........................................................................................................................19

2
1. Introduction
This manual is for the following models of Rack LCD Series:
UV 80/3 RACK LCD-LCD PLUS
UV 80/4 RACK LCD-LCD PLUS
UV 80/5 RACK LCD-LCD PLUS
This Pressure UV Systems is manufactured by S.I.T.A. s.r.l.
Warning: This equipment requires regular maintenance to ensure the requirements of the drinking
water treated and the maintenance of the improvements as stated by the manufacturer.
These operating instructions contain important information for the operation and maintenance of the
equipment.
Please ensure that these operating instructions are carefully read by all relevant persons before putting
into operation, to ensure the safe use of the UV system. The operating instructions are an integral part
of the equipment supply.
Before putting into operation, all the conditions necessary for safe operation of the equipment must be
fulfilled.
The installation, commissioning and maintenance of the equipment should only be carried out by
qualified personnel.
The equipment should only be operated by authorized personnel who have been trained accordingly.
No modifications should be made to the equipment without consulting S.I.T.A., as this could effect the
safe operation of the unit. S.I.T.A. shall not be held responsible for damage resulting from unapproved
modifications.
I NSTRUCTION :
The operating instructions are to be kept where they will be accessible for operating
and

3
2. General Principles
GENERAL PRINCIPLES
The UV disinfections have been planned specially for destroying harmful bacteria and viruses
present in your water.
Their working is based on a physical principle which is a warrant of security: the output of ultra-
violet irradiation.
The UV light given out by special mercury fumes lamps (UV-C rays λ= 254nm) is highly
germicidal because it interacts with DNA and RNA, at a molecular level. The deep bio-structural
disorder caused by such irradiation interferes with the development and the ability of
reproduction of every kind of micro-organism, making it harmless.
Generally it is better to mount a pre-filter before the UV disinfection system, in this way the
impurities of every nature and consistence are kept.
This system comes to be necessary if we want to have a high degree of disinfection, infact the
non-filtration and removal of suspended particles in the water has, as a consequence, a decrease
of the disinfection system's efficiency.
If the water to be treated contains sulphydric acid or more than 0.3 p.p.m. of iron or filtrable
solids, once passed through the disinfection system, it leaves a residual sediment on the quartz
sleeve, which, therefore, must be periodically cleaned (the frequency depends on the quantity and
quality of water treated).
The disinfection equipment is constituted by different electronical and electromechanical
components assembled in such a way to realize effectively the disinfection process, giving a
bacteriologically pure water.
•GENERAL DIRECTIONS
According to the European rules EN 60204-1 (safety of the set-up off the electrical equipment-
general rules) the low tension electrical instruments (rule 2006/95/CE) must be connected to a
current-tap provided with grounding
•SAFETY DIRECTIONS
The light of ultra-violet lamps can cause serious burns to unprotected skin and eyes, therefore it is
recommended not to connect it to the current tap without having before ensured the UV lamp in
its housing and inserted the PVC cover.
•INDICATIONS FOR THE DISPOSAL
We remind that, according to what is fixed by D.L.25 july 2005, №151 “Accomplishment of
directives 2002/CE, 2002/96/CE and 2003/108/CE, concerning the reduction of the use of
dangerous substances in electric and electronic equipments, and the disposal of waste” both
mercury vapours lamps and electrical panels, when no more used, must be considered as special
waste, and in the same way disposed of.
To do that, it is possible to address to specialized centres for the recovery of dangerous materials,
or to contact directly our technical department.

4
3. Instruction for installation and setting at work
General premise
The installation of the “Rack LCD” disinfection units must be carried out by specialized staff,
scrupolously following the instructions given hereby. It has been moreover considered necessary
to give some general information about the electrical and water connections.
Caution:
Check that the general switch is in the position OFF (0) 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
Caution:
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 disinfection system in
order to remove the suspended particles, eventually present in the water to be treated, which
could limit the efficiency of disinfection.
CHECKS
The “Rack LCD” disinfection units 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.
SERVICING
The disinfection systems of “Rack LCD” 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
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

5
RACK LCD Model :
The Rack LCD model is the cheapest and simplest one of the RACK LCD series, since, even if
with the same excellent characteristics of performances and duration, it does not give the reading
of the irradiance and temperature.
The Rack LCD series gives only a control of the lamp by the red led that indicates only its state
and suggest when it is passed the lamp lifespan.
The Rack LCD series gives also a free contact and a 230 V contact for the alarms.
RACK LCD PLUS Model :
The RACK LCD PLUS model is, as the name its self indicates, the top of the series.
The system gives a more advanced control on the state of working of the lamp, permitting to
monitor on a display, istant by istant, the situation of the irradiation and the temperature of
working.

6
3.1 Installation scheme recommended

7
4. The UV Chamber Installation
4.1 Assembling of the UV chamber
Screw the nylon sleeve bolts, pressurize the plant and verify
Insert the quartz sleeves using the special guide bar supplied.
that are not water leaks from nylon sleeves bolt.
Insert the o-ring on the sleeves.
Unscrew the nylon sleeves bolts.
xtract the inox cover.

8
Insert the UV-C lamps into the quartz sleeves.
Insert the sprigs into the quartz sleeves.
Connect the electrical four-pin sockets.
Insert the inox cover.
Insert the pvc contacts cover.

9
To screw the sensor so composed on the UV collector.
Insert the o-ring in the screw side of the sensor
At last to insert the electrical connector of the main board.
ONLY FOR PLUS TOP MODELS

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4.2 Detailed drawing of the UV-C chamber
MATERIAL : S.S AISI 304 (316L ON REQUEST)
IN-OUT DISTANCE
DIAMETR
SUBJECTREF.
1
2
CHAMBER LENGTH
MEASURE
985
767
IDRAULIC CONNECTIONS3 Ø 2"
H
H
FOUR-PIN SOCKET UV LAMP
DESCRIPTIONREF.
A
B E
O-RING Ø 23x4
C
F
G
QUARTZ SLEEVE
CODE
028124 028105
LAMP HOLDER SPRING PVC CONTACT COVER
NYLON SLEEVE BOLT
028088
028061
028036 028034 028060
SENSOR Ø 1/4"
D H
DRAIN VALVE Ø1/8" 014460
UV737
IN
OUT
F
D
BA
C
EG
I
I STAINLESS STEEL COVER
154

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MATERIAL : S.S AISI 304 (316L ON REQUEST)
IN-OUT DISTANCE DIAMETR
SUBJECTREF.
1
2
CHAMBER LENGTH
MEASURE
1080
168
724
IDRAULIC CONNECTIONS3 DN80 - PN10
OUT
H
IN
D
H
F
C
EG
BA
I
DESCRIPTIONREF.
QUARTZ SLEEVE O-RING Ø 23x4
UV LAMP
B A
C
CODE
028124 028105
028061
NYLON SLEEVE BOLT
PVC CONTACT COVER
HSENSOR Ø 1/4"
FOUR-PIN SOCKET
F E
G
UV737
028060 028088 028034
LAMP HOLDER SPRING 028036
DDRAIN VALVE Ø1/8" 014460
I STAINLESS STEEL COVER

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5. Control & Operation
5.1 Description of the Control Panel

13
5.2 Rack LCD Electrical Board description

14
6. Display Informations (Troubleshooting)
6.1 Electrical Panel Rack LCD Model
Cyclic
displaying of
working
System shut
down
In such
way the
area
protected
by
password
is entered,
and the
system
parameters
can be
modified.
With this sequence the
count-down of lamps life
is started again. The
count-down starts from
9000 hours until coming
to zero. Once come to zero,
it makes the alarm for
lamps replacement start.
When the count-down
starts again, the software
identifies the number of
lamps replacements that
have been done.

15
ELECTRICAL PANEL RACK LCD MODEL – List of alarms:
ELECTRICAL PANEL LCD MODEL Other problems:
In the case of a non-working lamp. If the system has 2
lamps the failed lamp is identified. Check that the lamp is
not broken and/or that the lamp-lighter is working.
In the case the count-down of lamps-life has come to zero.
In such case the lamps must be replaced and the count-
down must be started again.
Display OFF in the case of no electrical feeling or burned
fuses

16
6.2 Electrical Panel Rack LCD Plus Model
Cyclic
displaying
of working
In such
way the
area
protected
by
password
is entered,
and the
system
parameters
can be
modified.
In such way
the
calibration
of 100% of
irradiation
compared to
the water
treated is
carried out.
With this sequence the
count-down of lamps life
is started again. The
count-down starts from
9000 hours until coming
to zero. Once come to zero,
it makes the alarm for
lamps replacement start.
When the count-down
starts again, the software
identifies the number of
lamps replacements that
have been done.
System shut
down

17
ELECTRICAL PANEL LCD PLUS MODEL – list of alarms:
ELECTRICAL PANEL LCD MODEL Other problems:
In the case of a non-working lamp. If the system has 2
lamps the failed lamp is identified. Check that the lamp is
not broken and/or that the lamp-lighter is working.
In the case of low irradiation caused by a fouled quartz
sleeve or an exhausted lamp or a water with low uv
trasmittance or fouled quartz
-
disk of the sen
sor.
In the case the count-down of lamps-life has come to zero.
In such case the lamps must be replaced and the count-
down must be started again.
In the case of high temperature of the uv chamber. This may
happen when there is no flow or there is air in the uv
chamber. In such case the system switches off.
To cancel the alarm and start the system again, press
then again until the screenfull is found, then
press . Optionally switch off and start again.
Display OFF in the case of no electrical feeling or burned
fuses

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7. Warranty Conditions
WARRANTY CONDITIONS
SITA works in compliance with ISO 9001-2008 quality procedures and subjects all equipments to
accurate checks and tests.
The SITA supplies and progressing are anyway guaranteed only in the limits of technical
specifications and request and/or of the certificates and/or of the specific checks as agreed,
for 24 months from the delivery date or 30 days from the purchase date, provided that
eventual defects are stated as fixed by art. No. 1495 of the civil code.
The stainless steel chamber is covered by warranty of 5 years only if used for compatible
liquids and correctly installed.
In no case the integral replacement of the product is forseen and any responsibility of sita is
excluded for delays in the delivery of the goods to the customer, for claims of third parties towards
the customer, for losses of goods, costs (installation, servicing and maintenance, transports, and so
on) and damages of the customer due to the defect.
Moreover the product repaired or tampered by non-authorized third parties, and the product on
which an intervention has been made for defect of for convenience tests, is excluded from the
warranty.
Repairs are normally carried out in SITA warehouse or in authorized after-sales service centers
signalled by SITA.
The warranty does not cover:
1. Accidental breakages due to the transport.
2. Breakages due to the use of equipments not in compliance with what is indicated on the use
and maintenance manual or to carelessness.
3. Breakages to the connection to a power grid feeded with a tension different than the foreseen
one (±10% of the nominal value as fixed by CEI rules)
DO NOT TAMPER THE ADHESIVE LABELS OF IDENTIFICATION
The adhesive label with the QC (Quality Control) number must be intact and readable; such
number allows to enter the data bank of tests and to find the values obtained in the electrical test of
the equipment.
The adhesive label with the S/N (Serial Number) number must be intact and readable; such number
allows to enter the data bank of tests and to find the values obtained in the hydraulic test of the
equipment.
In case of dispute the court of Genova will be competent.

19
8. Declaration of Conformity EC
Unit produced in the factory of:
S.I.T.A.
Società Italiana Trattamento Acque
EC DECLARATION OF CONFORMITY
The undersigned hereby declares, under full responsibility, that the unit:
UV DISINFECTION SYSTEM
RACK LCD SERIES
RACK LCD & RACK LCD PLUS MODELS
IS IN COMPLIANCE
2006/95/CE (low voltage directive)
2004/108/CE (electro-magnetical compatibility)
2002/95/CE (RoHS)
2002/96/CE (WEEE)
IEC -EN 60204-1 norms (safety of machinery-electrical equipment of machinery)
IEC -EN 55022 norms (characteristics of radio interference)
D.Lgs. 31/2001 (Implementation of Directive 98/83/CE on the quality of water intended
for human consumption)
97/23/CE (art.3 comm.3) (PED)
The validity of CE marking is subordinated to the equipment integrity. Any modification,if not authorized,will cancel the use
of the CE marking.This will occurs in case the relevant risks have not been previously analyzed by our company,and a new
EC Declaration of Conformity has been issued.