KENT Pearl Instruction Handbook For Installation, Operation And Maintenance

Instruction Handbook

for Installation, Operation

and Maintenance.

Marc h, 2015

TM

Mineral RO © 2005 - 2012 KENT RO SYSTEMS LTD, the process & purifier is patented vide patent no. 199716.

KENT Pearl's design registration no. applied for.

Reverse Osmosi s Wa ter Purifier with UV Ster iliza tion & TDS Contr oller

FOR WALL MOUNTING/COUNTER-TOP INSTALLATION

\\Indelssf0038\f\LnK_Chandresh_2015_BOX & MANUALS\KENT\Manual\Export\Kent Pearl Manual
Size: 5.5”×8.25” dt. 02 03 2015 job no. x

Manufactured

A-2, Sector-59, Noida, U.P.-201 309, India
Ph.: [phone]
E-mail: [e-mail] Website: www.kent.co.in

by:

KENT RO SYSTEMS LTD.

System Tested and Certified

by WQA to NSF/ANSI 58 for
the reduction of Barium, Fluoride,
Lead, Nitrate, Nitrite, Pentavalent

Arsenic (<300ppb) and TDS.

System ested and er tified
by NSF International against

NSF/ANSI Standard 58 for

the reduction of TDS

T C

System Tested and Certified

by WQA to NSF/ANSI 58 for
the reduction of Barium, Fluoride,
Lead, Nitrate, Nitrite, Pentavalent

Arsenic (<300ppb) and TDS.

System ested and ertified
by NSF International against

NSF/ANSI Standard 58 for

the reduction of TDS

T C

Dear Customer,

At the outset, allow us to thank you for your trust in water purifier. We take

pride in our reputation for product quality and industry proven performance. We

are certain that your decision to own water purifier will

go a long way to wards keeping you a nd your family in good health. We are

confident that you will be satisfied with its performance and that it will serve your

need for safer and cleaner drinking water without any compromise.

This guide will help you in getting the best out of your water purifier. Please go

through this booklet to familiarise yourself with its operation and maintenance.

You can look forward to years of trouble-free service. To ensure that the warranty

of your water purifier is effective, it is important that you fill up the enclosed

warranty card and mail us the installation report within 15 days of purchase.

In case you need any further information, contact your nearest

dealer/branch.

Best Wishes

KENT

KENT

TM

KENT Pearl Mineral RO

KENT RO SYSTEMS LTD.

Table of Contents

to KENT

1. KENT T ECHNO LOGY - A Breakth rough in Wa ter Purifica tion 1

2. Salie nt Featur es 1

3. Items in t he Box 1

4. Impor tant Instr uctio ns 2

5. Reverse Osmosi s P roces s 3

6. UV Proce ss 3

7. Auto - Flus hing System 3

8. Water Flow Diagr am 4

9. Elect rical Circuit Diagr am 4

10. UV Fail Alarm 5

11. Filte r C hange Alarm 5

12. Co mpute r C ontro lled Operati on 5

13. Au tomat ic Opera tion 5

14. Insta llat ion Inst ructi ons 6

15. TDS Adjustmen t 7

16. St art ing up the purifie r 7

17. Recom mended usage of Rejected Water 7

18. Maint enanc e 8

19. Clean ing the Wat er Tank 8

20. Technical Specif icati ons 9

21. Perfor mance Data Sheet 9

1

KENT proudl y presents

- its new and advance d
domest ic wat er pur ifier ba sed on t he
paten ted KENT Techno logy. The groun d­breaki ng KENT Technolo gy, developed at
KENT laborato ry, broadl y compris es of
state -of-the -art RO+UF +UV w ith TDS
Contro l & Auto - Flushin g System . The
initia l pur ificat ion by RO mem brane
having porosi ty as fine as 0.0001 microns
reduce s even di ssolved i mpurit ies (ha rd
sa lt s, h eav y me tals e tc .) . Do ub le
purif icati on by UV pr ocess ensu res
comple te protectio n against bacteria and
virus es. M oreover, the patent ed T DS
Con tro l Sy ste m in tellig ent ly r eta ins
essential natural minerals in purified water,
thus tak ing total care of your health and
well being.

KENT PEARL

TM

Minera l RO

KENT TECHNOLOGY - A Breakthrough in

Water Purification*

TM

Salient Features of KENT Pearl Mineral RO Water Purifier

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Suitable for wall mounting or counter-top 8 Litres storage capacity
installation

RO Membrane fused inside membrane

Purification by RO+UF+UV with TDS Control housing to prevent tampering

Inbuilt Auto-flushing System Vertically mounted SMPS for protection

Detachable tank for easy on-site cleaning on Push- fit compo nents for leak -proo f &
regular basis maintenance-free performance

LED indicator for power and purification display Fully au tomatic o peration w ith auto-o n

and auto-off function

Computer-controlled opera tion with Filter
Change Alar m* and UV Fail Alarm* ABS construction for corrosion-free lifespan

Adjustable TDS Control System to allow TDS Suitable for P urificati on of Brackish /
adjustment of purified water Tap Water / Municipal Corporation Water

1.

2.

3.

4.

5.

6.

7.

Water Purifie r : 01 No.
3-Way Connecto r : 01 No.
S.S. Ball Valve : 01 No.
Food Grade Pipe (Blue)- 1/4 in ch. : 2.5 meters
Food Grade Pipe (White)- 3/8 i nch. : 2.5 meters
Screw s & Plasti c I nser ts : 02 Nos. ea ch
Instr uction Manua l : 01 No.
Stic ker Center Drill : 01 No.

TM

KENT Pearl Miner al RO

8.

Items in the Box

2

* Tested & Certified by TUV-SUD South Asia (P) Ltd.

Avoid exposure to direct
sunlight and installation
in damp areas.

Mak e su re t hat the
purifier is connected to
no rma l t em per at ure
water supply only.

Rejected Water

Drain

10 M

Water Source

Water in

Maximum distance between the
water source and purifier should
not be more than 3 meters.

Avoid sharp bends in pipe.
Do not block the reject
water pipe.

Do not confine the
purifier in a cabinet.

In case the purifier is not to
be used for more than two
days, kindly switch off the
power supply and drain the
storage tank.

Do not try to service the purifier on your own.
Instead, call the service technician for help.

To keep the storage tank clean, it should be removed,
cleaned and wiped dry, once in 15 days.

Important Instructions

Make sure that the rejected
water pipe is not placed at a level
hi ghe r f ro m t he pu rif ier ,
otherwise rejected water may
flow backwards into the purifier.

Use Genuine Kent spares for optimum performance

3

UV Process

The UV l ight ha s shor ter wavel ength ( highe r energ y) than t he visi ble lig ht. It is call ed
ultra -viol et becau se it is ju st beyon d viole t light in t he ligh t spect rum. Techn icall y,
the ultra-v iolet ligh t i s d efined to b e a ny wavel ength of li ght, wh ich is s hor ter t han
400 nanomet er.

UV ray s, which p enetra te i nto t he mi cro-or ganis ms, are a bsorb ed by th e DNA o f t he
path ogen i n the water. The DN A is altere d in such a w ay th at t he p atho gen c annot
repro duce its elf. T hus, it is essentia lly kill ed and cann ot cause inf ectio n. This pr ocess of DNA
modif icat ion is c alled inacti vatio n.

The purpose of the Auto Flushing System is to help prevent scaling or fouling of the RO membrane
by providing a rapid rinse which washes away impurities from the membrane's surface and keeps
the membrane clean. It also offers the following benefits:-

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Lowers reject water outflow
Improves "TDS" rejection rate i.e increases RO membrane efficiency
Extends life of RO membrane

Auto Flushing System

700400

Wavelength(nm)

UVB

280-315

UVA

315-400

UVC

200-280

X-Rays

Ultraviolet

Visible

Infrared

Microwaves Radio

The Re verse Osmosi s pro cess, also known as hyper
filtr ation , is the fin est filt ratio n proces s known til l date.
The proces s ensures reduct ion in partic les as small as
ions from a soluti on. Revers e Osm osis uses a semi­pe rme abl e m em br ane t o r edu ce s alt s f ro m
pota ble/br ackis h water. In Rever se Osmos is, water
press ure a pplie d to the co ncent rated side forc es the
proce ss of osm osis into rever se. Un der enoug h
press ure, pu rer water is " squeez ed" t hroug h th e
membr ane f rom the concen trate d si de t o the diluted
side. Salts dissol ved in water as charge d ions are
repel led by the RO membrane. Th e rejecte d impurit ies
on the conce ntrat ed side of the membr ane are washed
away in a stream of waste water a nd thu s does not
get accumul ated as in a traditi onal filter.

Waste Stream

to Drain

Reverse Osmosis Process

Electrical Circuit Diagram

Water Flow Diagram

100-300 V AC, 50-60 Hz

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5

6

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The purifier automatically shuts off when the The purifier automatically restarts when water level
storage tank is full drops below the maximum

The purifier automatically flushes & cleans the RO The purifier does not allow any water rejection in
membrane on periodic intervals absence of electricity / when tank is full

The purifier does not start when inlet water supply

2

pressure falls below 0.3 kg/cm

Automatic Operation

Filter Change Alarm*

TM

KENT Pearl Mineral RO has an in-built feature that sounds an audible alarm to indicate replacement

time for filters. This alarm will be audible after

The Filter Change Alarm will sound as following:

4 short beeps after every two seconds; for 30 seconds. The alarm will repeat after every 2 hours of use.

In case such an alarm is audible, please call the service technician and request him to change the filters of the
purifier. However, if the filters are not changed within the next 60 hours of operation, the purifier will stop
functioning to ensure purity and hygiene. The following alarm will be audible after 60 Hrs.

A continuous beep for an infinite time.

In case, such an alarm is audible, kindly switch off the purifier and call the service technician to replace
the filters. In such a circumstance, the purifier will not function unless the filters are changed.

700 hrs of use since the last filter change (or since the

time of installation).

TM

KENT Pearl Mineral RO has an in-built feature that sounds an audible alarm if the UV lamp malfunctions.

This feature is provided to ensure purer water. This UV Fail Alarm will sound as following:

Two short beeps after every two seconds.

In case such an alarm is audible, kindly switch off the purifier and call the service technician for help.
The purifier will stop its purification process in such a circumstance.

UV Fail Alarm*

2 Sec . 2 Sec. 2 Sec .2 Sec .

2 Hou rs

30 Se c. 30 Se c.

To ensure delivery of purer and healthier water, a micro-processor is installed in the purifier that
performs the following functions: -

UV Stabilisation Delay: To ensure that the UV lamp is pre-heated and is working a t its optimum level
before it starts disinfecting water, the controller provides a two seconds delay to UV lamp when the
purifier is switc hed on. During this period, only the UV lamp is switched on and other electrical devices
of the purifier are switched off.

Purification Delay: To ensure that the idle water lying in the internal pipes and in the UV chamber is
disinfected before being passed into the storage tank, the system provides 5 second delay when the
purifier is switched on. During this time, the UV lamp kills all micro-organisms that may be in the water
inside UV chamber. After this delay, all other electrical devices such as booster pump and solenoid
valve are switched on to start normal purification process.

Audible Alarm: The controller also controls the timing of UV Fail Alarm and the Filter Change Alar m.

Computer Controlled Operation*

* Tested & Certified by TUV-SUD South Asia (P) Ltd.

Insta llati on Proced ure :

1. Scr ew in t wo 1 0x50 self t aping sc rews, 5 .4 inches (13 8 m m) apar t horizon tally.
(in case of wall mount ing).

2. Wall- mount the purifie r with the help of slot holes given o n back side.

3. Fasten the SS ball valve to ¼ inch port of 3-way connector.

4. Attach threaded end of 3-way connector to raw water supply and plug of f
the other end or connect to a tap.

Slot holes

TM

KENT Pearl Mineral RO is designed to facilitate both wall mounting as well as the

counter-top usage. The purifier is easy and convenient to install.

Recommended Site Preparations:

100-300 V AC, 50-60 Hz supply not more than 3m away from the point of installation

Raw water supply with ½ inch nipple not more than 3m away

Drain for reject water not more than 3m away

Installation space as per dimensions of the purifier

For wall mounting installation, make sure that purifier is mounted on a wall. Avoid installation on

wooden and metallic stands

For optimum inlet pressure, source water tank should be at least 10 ft above the purifier installed

Install the purifier near a sink for easy availability of inlet and reject water lines

The system and installation must comply with state and local laws and regulations

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Installation Instructions

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Storage tank must be cleaned once in 2 Replace RO membrane once in a year
weeks. (Refer Cleaning the water tank)

Replace UV Lamp once in a year

Replace sediment filter, activated carbon

In the event of not using purifier for a long

filter & post carbon filter once in 12 months

time (while going for a holiday, tour etc.),

or whenever the filter change alarm

make sure that you disconnect the power

activates. It is recommended to change

supply, turn off the raw water supply and

FRT along with the filters

drain the storage tank

Maintenance

The replacement time of consumables suc h as filters and membrane is dependent on the
quality of raw water and water consumed.

To ensure that the purifier operates at its BEST, a routine maintenance must be perfor med.
The frequency of the maintenance will greatly depend upon the raw water quality and consumption
of purified water.

Note: Filter s and membrane ar e consumables. Their repla cement time is de pendent on the qua lity of raw wa ter and
water consumpti on. They are not covered und er the warranty. However, if a f ilter cho kes within six mon ths and a
membra ne w ithin a yea r, it w ill be cleaned/ repaired/r eplaced free of cost. Changing the filters and system inspec tion is
availa ble on call . The treatment capacity o f RO me mbrane will reduce wi th time due to clogging of po res of
membra nes.

“This reverse osmo sis system conta ins a rep laceable compon ent critic al t o th e ef ficiency of the system . Replac ement
of t he reverse osmosi s component sho uld be with one of identical s pecificati ons as defined by the m anufacture r, to
ensure the same efficie ncy and contamin ant r eduction perfor mance.”

Cleaning the Water Tank

The reverse os mosis syst em contai ns a replace able treatmen t c omponent criti cal for the effective redu ction
of total dissol ved soli ds and that product water shall be te sted pe riodically to verify t hat th e syste m is
perfor ming properly.

Replac ement of spare parts are as un der:-

-2000 8 SP Inline Sedimen t Fil ter 1 0"

-2000 9 SP Inline Carbon Filter 8"

-2000 1 SP RO M embrane Welded 10" Housin g

-2001 5 SP Post Carbo n Filt er (B lue)

-2000 3 SP Hollow Fibre Membran e (RO)

-2001 8 SP FRT 550

Open the Upper Cover Remove the water Tank

Clean it under a running

tap water and wipe dry

Switch off the
power supply

Remove the Tank

Cover/Lid

Use white pipe for raw water supply

5. Now connect one end of white pipe to SS ball valve and other end to lower
elbow fitting connector labelled as on the left side of purifier.WATER IN,

Use blue pipe for reject water

6. Connect one end of blue pipe to upper elbow fitting connector labeled as
and lead the other end to drain.

7. Turn on the lever given on SS ball valve to initiate the water flow to purifier.

8. All ow the filters to pr e-soak in w ater for 2 -3 minut es.

9. Con nect the p ower supply.

10. In stall ation is c omple te.

REJECT WATER

TDS Adjustment*

n n Turning the screw of the valve clockwise,

results in a decreased mineral content.

Turning the screw of the valve anti-clockwise,
results in an increased mineral content.

The unique TDS Control System enables customers to retain the contents of natural minerals (TDS)
in purified water, as per their requirement.

We recommend keeping the TDS at lowest but not below 50mg/l.

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Switch on the power supply Place back the storage tank and close the upper

cover

Allow the storage tank to fill to the maximum level**

Switch on the power supply

Switch off the power supply

Purifier is ready to use

Open the upper cover. Lift and drain the storage
tank so as to remove residual dust particles present
in the pipes and storage tank

Starting up the purifier

The glowing Red LED indicates power is on. The glowing Green LED indicates the
purification is on.

Recommended usage of Rejected Water

Although the rejected water has high concentration The high concentration of salts and minerals
of salts, it is absolutely clean and free from accelerate the plant growth. Rejected water can
impurities like chlorine, dirt, sand, etc. This rejected also be used for cleaning utensils, mopping etc.
water usually goes down the drain but can be
used for gardening purpose.

* Tested & Certified by TUV-SUD South Asia (P) Ltd.
** Tested or certified flushing time - 24hrs.

9

Testing was performed under standard laboratory conditions, actual performance may vary.

This system is acceptable for treatment of influent concentrations of no more than 27 mg/L nitrate and 3
mg/L nitrite ( In combination measured as N), and is contingent on the proper functioning of the booster
pump included as part of this system to deliver a minimum pressure on the membrane of at least 40 psi.

This system has been tested for the treatment of water containing pentavalent arsenic (also known as As
(V), As (+5), or arsenate) at concentrations of [0.050 mg/L or 0.30 mg/L] or less. This system reduces
pentavalent arsenic but may not remove other forms of arsenic. This system is to be used on water
supplies containing detectable free chlorine residual or on water supplies that have been demonstrated to
contain only pentavalent arsenic. Treatment with chloramines (combined chlorine) is not sufficient to
ensure complete conversion of trivalent arsenic to pentavalent arsenic. Please see the Arsenic Facts
section of the performance data sheet for further information.

Arsenic (As) is a naturally occurring contaminant found in many ground waters. It generally occurs in two
forms (valences or oxidation states): pentavalent arsenic (also known as As(V), As(+5), or arsenate) and
trivalent arsenic (also known as As(III), As(+3), or arsenite). In natural ground water, arsenic may exist as
trivalent arsenic, pentavalent arsenic, or a combination of both. Although both forms of arsenic are
potentially harmful to human health, trivalent arsenic is considered more harmful than pentavalent
arsenic. More information about arsenic and its toxicity can be found on the U.S. Environmental
Protection Agency website at http://www.epa.gov/safewater/arsenic.html.

This system is designed to remove only pentavalent arsenic. This treatment system does not provide a
feature for conversion of trivalent arsenic to pentavalent arsenic. The system may remove some trivalent
arsenic, however, it has not been evaluated for its ability to remove trivalent arsenic.

Trivalent arsenic is generally more difficult to remove from drinking water than pentavalent arsenic.
Trivalent arsenic can be converted to pentavalent arsenic in the presence of an effective oxidant such as
free chlorine. The arsenic in water containing detectable free chlorine or that has been treated with
another effective oxidant will be in the pentavalent arsenic form.4 Treatment with chloramine (combined
chlorine) is not sufficient to ensure complete conversion of trivalent arsenic to pentavalent arsenic.

Consumers using public water supplies can contact their utility to verify whether free chlorine treatment
chemicals are being used. Private water supplies and waters that do not have detectable free chlorine
residuals should be analyzed to determine the form(s) of arsenic present and the potential need for
oxidation of trivalent arsenic to pentavalent arsenic.

Arsenic does not generally impart color, taste, or smell to water, therefore, it can only be detected by a
chemical analytical test. Public water supplies are required to monitor treated water for total arsenic
(trivalent arsenic plus pentavalent arsenic) and the results are available to the public from the utility.
Consumers using private water sources will need to make arrangements for testing. A total arsenic test
usually costs about $15-$30 and it is recommended the test be conducted by a certified laboratory. Local
health departments or environmental protection agencies can help provide consumers with a list of
certified laboratories. Some laboratories may also be able to analyze specifically for (speciate) the form(s)
of arsenic present in a water sample if requested.

This treatment system was tested under laboratory conditions as defined in NSF/ANSI 58 Drinking Water
Treatment Units – Health Effects and was found to reduce 0.30 mg/L of pentavalent arsenic in the test
water to less than 0.010 mg/L under standard testing conditions. Actual performance of the system may
vary depending on specific water quality conditions at the consumer's installation. Following installation
of this system, the consumer should have the treated water tested for total arsenic to verify arsenic
reduction is being achieved and the system is functioning properly.

The arsenic removal component of this system must be replaced at the end of its useful life of 1-2 years.
The replacement component,

can be purchased directly from the manufacturer Kent RO Systems.

Ltd.

Arsenic Facts

20008 SP Inline Sediment Filter 10", 20009 SP Inline Carbon Filter 8", 20001
SP RO Membrane Welded 10" Housing, 20015 SP Post Carbon Filter (Blue), 20003 SP Hollow Fibre
Membrane (RO), 20018 SP FRT 550

Technical Specifications

MODEL NAME

*Purification capacity test ed on raw water having TDS level of 7 50 ppm at room temperature

TM

KENT PEARL MINERAL RO WATER PURIFI ER

This system has been tested according to NSF/ANSI 58 for reduction of the substances listed below. The
concentration of the indicated substances in water entering the system was reduced to a concentration less than
or equal to the permissible limit for water leaving the system, as specified in NSF/ANSI 58.

Substance Influent challenge Maximum permissible Minimum %

concentration mg/L product water reduction

concentration mg/L

Total Dissolved Solids 750 ± 40 mg/L 187 93.6%

TM

Performance Data Sheet-KENT Pearl Mineral RO Water Purifier

Do not use with water that is microbiolo gical nknown quality w/o adequate disinfection before or
after the system.

Efficiency rating means the percentage of the influent water that is available to the user as Reverse Osmosis
treated water under operating condition that approximate typical daily usage.

ly unsafe or of u

Arsenic (+5) 0.30 ± 10% 0.010 98.7
Barium 10.0 ± 10% 2.0 97.7
Fluoride 8.0 ± 10% 1.5 96.3
Lead 0.15 ± 10% 0.010 99.3
Nitrate / Nitrite 30 ± 10% 10 73.5

10

Model No.

Applications

Purification Production Ra te

Body M aterial

Installation

Dimensions(mm)

Inlet Water Pres sure/Temp (Min)

Inlet Water Pres sure/Temp (Max)

Filter Cartridge

UV La mp Wattage

Life o f UV Lamp

Auto-Flushing System

Weight

Storage Capacity

Maximum Duty Cycle

Membrane Type

Booster Pump Voltage

Total Power Consum ption

Input Power Supply

11002

Suitable for Purification of Brackish / Tap Water

Municipal Corporation Water

Upto 15 L/h or 0.25 L/min*

ABS Food Grade Plastic

Wall Mount ing / Counter-Top

L 405 W 330 H 470

2

0.3kg / cm or 4.267psi / 10º C

2

3kg / cm or 42.67psi / 35º°C

Sediment, Activated Carbon, UF, Pos t Carbon

11 W

1 Year

Yes

10.800 kg

8 L

75 L/ day

Thin Film Com posite RO

24 V DC

60 W

100-300 V AC, 50-60 Hz