KENT 11045, GEM Mineral RO Instruction Handbook For Installation, Operation And Maintenance

M:\LnK_KENT_2016_BOX & MANUALS\Manuals for Export\GEM Date 09 08 16 Job no. xxxSize : 5.5”×8.25”

August, 2016

Marketed by:

Ph.: [phone]
E-mail: [e-mail] Website: www.kent.co.in

Manufactured by:
KENT RO SYSTEMS LTD.

Khasra No.93, Village-Bantakhedi, Tehsil-Roorkee,
District-Haridwar, Uttarakhand-247668, India

KENT RO SYSTEMS LTD.

E-6, 7 & 8, Sector-59, Noida, U.P.-201 309, India.

Instruction Handbook

for Installation, Operation

and Maintenance.

Welcome Welcome

Dear Customer,
At the outset, allow us to thank you for your trust in KENT water

purifier. We take pride in our reputation for product quality and
industry proven performance. We are certain that your decision to
own KENT GEM Mineral RO™ Non-Electric Water Purifier will go
a long way towards keeping you and 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 familiarize yourself with
its operation and maintenance.

You can look forward to years of trouble free service. In case you
need any further information, contact your nearest KENT
dealer/branch.

Best wishes,
KENT RO SYSTEMS LTD.

TO KENT

1. Kent Technology 1

2. Salient Features of KENT GEM Mineral RO™ Non-Electric 1

3. Items in the Box 1

4. Important Instructions 2

5. Reverse Osmosis Process 3

6. UF Process 3

7. Water Flow Diagram 3

8.

10. Automatic Operation 5

11. Installation Instructions 5

12. Installation Procedure 5

13. TDS Adjustment 6

14. Starting-up the Purifier 6

15. Recommended Usage of Rejected Water 6

16. Maintenance 7

17. Technical Specifications 8

Filtration Stages 4

9. Automatic Shut-off valve Assembly 4

Contents

KENT GEM Mineral RO™ Non-Electric Water Purifier it uses futuristic and state-of-the-art
technology to provide pure & healthy drinking water.

KENT GEM Mineral RO™ Non-Electric Water Purifier uses the household water pressure to
reverse a natural physical process called osmosis. Water is forced through a semi-permeable
membrane having capillaries as small as 0.0001 microns, which removes dissolved impurities
present in the water but retains essential natural minerals with its unique and patented TDS control
mechanism. The clean drinking water goes to the faucet or storage tank, while the impurities are
sent to the drain.

Before entering the RO membrane, raw water is made to pass through series of pre-filters. Starting
with sediment filter (which removes physical and sediment impurities from the water), raw water is
then made to pass through a carbon filter, which not only removes chlorine from the water supply,
but also removes any other chemical and odour.

The post-carbon filter removes any taste or odour that may remain in the water after passing
through the RO membrane. To prevent water wastage, an automatic shut-off valve closes
whenever the RO faucet is closed or the storage tank is full.

KENT GEM Mineral RO™ Non-Electric Water Purifier has been designed to provide you with
continuous supply of sparkling clear, delicious water for drinking, cooking and other uses. It not
only makes food tastier, but also eliminates the need to buy bottled water, thus taking good care of
your family needs.

KENT TECHNOLOGY

A Breakthrough in Water Purification*

1 2

• Compact and modern counter top/under the • Inbuilt TDS Controller that allows adjustment
counter design, ideally suited for modern of TDS level of purified water.
kitchen needs.

• Ideal for Brackish / Tap Water / Municipal

• Eliminates the need for buying bottled water. Water Supply.

• To prevent water wastage, an automatic • 5 Litre inbuilt storage tank, makes purified
shut-off valve closes whenever the RO water available on demand.
faucet is closed or the storage tank is full.

• RO Membrane fused inside membrane

• Compatible to connect with refrigerators. housing to prevent tampering.

• Double purification by RO+UF process. • ABS construction for corrosion free use.

• Built around Mineral RO™ technology, which
removes dissolved impurities but retains
essential natural minerals.

• Work without electricity.

Salient Features of

KENT GEM Mineral RO™ Non-Electric Water Purifier

Items in the Box

1. KENT GEM Mineral RO™ Non-Electric Water Purifier : 01 No.

2. 3-Way Connector : 01 No.

3. S.S. Ball Valve : 01 No.

4. Faucet with Assembly Kit : 01 No.

5. Food Grade Pipe ¼” Blue : 2.5 m

6. Food Grade Pipe ¼” White : 5.0 m

7. Instruction Manual : 01 No.

Important Instructions

Use Genuine Kent spares for performance

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

In case of not using the purifier for more than
five days, kindly drain the storage tank.

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

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

Make sure that the reject is not placed
at a level higher than water pipe,
otherwise rejected water may flow
backwards into the purifier.

Make sure that the temperature of
water entering the purifier is within

o o o o

10 C or 50 F - 40 C or 104 F.

Avoid exposure to direct sunlight
and installation in damp areas.

Do not confine the
purifier in a cabinet.

Reject Water

Drain

10 M

Water Source

Water in

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

To keep the storage tank clean, it
should be drained once in 15 days.

The Reverse Osmosis process, also known as hyper filtration, is the finest filtration process known
till date. The process ensures removal of particles as small as ions from a solution. Reverse
Osmosis uses a semi-permeable membrane to remove salts from potable/brackish water. In
Reverse Osmosis, water pressure applied to the concentrated side forces the process of osmosis
into reverse. Under enough pressure, treated water is ‘squeezed’ through the membrane from the
concentrated side to the diluted side. Salts dissolved in water as charged ions are repelled by the
RO membrane. The rejected impurities on the concentrated side of the membrane are washed
away in a stream of waste water and thus, do not get accumulated as in a traditional filter.

Stage 01:
Sediment Filter: The raw water is made to pass through 'Sediment Filter', which is the best

solution to remove impurities such as sand, silt and other sediments that you may or may not be
able to see in the water supply.

Stage 02:
Activated Carbon Block: The water, now free from all sediments is made to pass through

'Activated Carbon Block', which removes bad taste, odour, chemicals like chlorine, and other
impurities.

Stage 03:
Reverse Osmosis Membrane: The polished water, free from sediment and chemical impurities is

made to pass through RO membrane which removes dissolved solids such as calcium carbonate,
chlorides, nitrates, etc. along with any organic matter.

Stage 04:
UF Membrane: Acting as a safety mechanism, the Ultra Filtration or UF membrane removes high

molecular–weight substances, colloidal materials, organic and inorganic polymeric molecules
including bacteria and viruses and cysts from water.

Stage 05:
TDS Control: The unique and patented TDS control system ensures retention of essential natural

minerals [required for healthy body] in purified water.

Stage 06:
Post Carbon: Cast out of high quality activated carbon, the filter enhances the taste of purified

water.

Automatic Shut-off Valve Assembly:

To conserve water, KENT GEM Mineral RO™ Non-Electric has an automatic shut-off valve system.
When the storage tank is filled to the capacity and the RO faucet is closed, pressure closes the
shut-off valve to stop the flow to drain. After some water is drawn and when the pressure in the
system drops, the shut-off valve opens to allow water to flow again.

Ultra Filtration is a separation process that uses membranes with pore size in the range of 0.1 to

0.01 micron. UF membrane removes high molecular-weight substances, colloidal materials,
organic and inorganic polymeric molecules including bacteria and viruses. Low applied pressure is
sufficient to achieve high flux rates from an ultra-filtration membrane.

Reverse Osmosis Process Filtration Stages

UF Process

3

Water Flow Diagram

4

The KENT GEM Non-Electric Mineral RO™ Water Purifier is a product of advanced technology,
which ensures safe and clean drinking water. The purifier is easy and convenient to install.

Recommended Site Preparations:

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

• Drain for rejected water not more than 3m away

• Space as per dimensions of the purifier

Specific Instructions:

• For optimum performance, the minimum and maximum inlet water pressure should be in the

2 2

range of 2.81 kg/cm or 40 psi or 6.12 kg/cm or 87 psi 2.81kg/cm-6.12kg/ cm (40 psi-87 psi)

• It is preferable to install the purifier near a sink, so that inlet and reject water lines are easily available.

2 2

Automatic Operation

Installation Instructions

• The purifier automatically shuts off when the • The purifier does not allow any water
storage tank becomes full and faucet is rejection when tank is full and faucet is in
closed. closed condition due to automatic shut –off

valve.

• The purifier does not start when inlet water

2

supply pressure is below 2.81 kg/cm or 40 psi.

5

6

TDS Adjustment

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

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

Starting Up the Purifier

Recommended Uses of Rejected Water

• Connect to the main water supply [as order to remove residual dust particles
shown in the figure] and turn it on. present in the pipes or storage tank.

• Wait till the storage tank fully fills up. ** • Turn on the water supply.

• Turn off the water supply. • The purifier is ready to use.

• Open the tap or faucet and drain the tank in

Rejected water has high concentration of salts and usually goes down the drain, but if required, can
be used for gardening purposes. Its high concentration of salts and minerals accelerate plant
growth. Rejected water can also be used for cleaning purposes, i.e. utensils cleaning, mopping,
etc.

.Pressure Testing & Purging

1. Check all tubes to ensure that there are no obstructions.

2. Turn on the faucet.

3. Slowly turn on the main water supply and check for leaks.

4. It should take more than 5 minutes to purge air from the system. Once water starts flowing from
the faucet, keep it on for 20 minutes.

5. After 20 minutes, turn faucet off.

not

Installation Procedure

4.

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

1.

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

2.

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

3.

Now connect one end of white pipe to SS ball valve and other end to
elbow fitting connector labeled as Raw Water, on the back side of purifier.

Use white pipe for raw water supply

5.

6.

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

Allow the filters to pre-soak in water for 2-3 minutes.

7. Installation is complete.

Note: • In case, you choose to place water purifier under the counter, install the faucet on the kitchen sink

or slab, connect one end of the white pipe to the faucet and the other end to the fitting connector
labeled as ‘Faucet’ on the back side of the purifier

• If the water purifier is placed as ‘Table Top’, never remove the dead plug from the connector
labeled as faucet

Use blue pipe for reject water

-20010 SP Inline Sediment Filter 8”

-20009 SP Inline Carbon Block Filter 8”

-20002 SP RO Membrane Welded 8” Housing

-20004 SP UF Membrane Welded 8” Housing

-20018 SP FRT 550

Note: Filters and membrane are consumables. Their replacement time depends upon the quality of raw
water and water consumption. They are not covered under the warranty. However, if a filter chokes
within six months and a membrane within a year, it will be cleaned/repaired/replaced free of cost.
Changing the filters and system inspection is available on call. The treatment capacity of RO membrane
will reduce with time due to clogging of pores of membranes.

“This reverse osmosis system contains a replaceable component critical to the efficiency of the system.
Replacement of the reverse osmosis component should be with one of identical specifications as
defined by the manufacturer, to ensure the same efficiency and contaminant reduction performance.”

Technical Specifications

7 8

Replacement of spare parts are as under:-

MODEL : KENT GEM Mineral RO™ Non-Electric
Product Code : 11045
Applications : Suitable for Purification of Brackish /

Tap Water / Municipal Water Supply
Operating pH levels : 2-11
Body Material : ABS Food Grade Plastic
Mounting : Counter Top/Under the counter
Dimensions(mm) : L 440 x W 250 x H 400

2

Inlet Water Pressure/Temp (Min) : 2.81 kg / cm or 40 psi / 10°C or 50° F

2

Inlet Water Pressure/temp (Max) : 6.12 kg / cm or 87 psi / 40°C or 104° F
Filter Cartridge : Sediment and activated Carbon Filter
UF Filter : Ultra Filtration Membrane
Weight : 9.300 kg
Storage Capacity : 5 L
Maximum Duty Cycle : 75 L/day
Membrane Type : Thin Film Composite RO

* Purification capacity tested for raw water having TDS level of 750 ppm at room temperature.

Maintenance

To ensure that the purifier operates at its optimum level, a routine maintenance must be performed.
The frequency of the maintenance will greatly depend upon the raw water quality and consumption
of treated water.

• Storage tank must be drained once in 2 • Replace the RO membrane once every year.
weeks. To do so, switch off the water supply

• Replace the UF membrane once every year.

and open the tap or faucet and drain the tank.

• If you are not going to use the purifier for a

• Replace sediment and activated carbon

long time (in case you are on a holiday, tour

after every 12 months. It is recommended to

or out of home), make sure that you turn off

change the FRT when the filters are

the raw water supply and drain the storage

replaced.

tank.

Note: The reverse osmosis system contains a replaceable treatment component critical for the
effective reduction of total dissolved solids and that produced water shall be tested periodically to
verify that the system is performing properly.