Nexus EN-7P User manual

OPERATION MANUAL
EN-7P
ALKALINE WATER IONIZER
Importer
Warning: Incorrect installation and/or operation could void your valuable warranty.
Please protect your investment! READ THIS MANUAL CAREFULLY
NEXUS TECH CO., LTD.
#362, Gwangmyeong Siboem Industrial Complex,
201, Haan 3-dong, Gwangmyeong-si,
Gyeonggi-do, Korea.

2 3
Power Related
Installation Precautions
During Usage
pH Reagent Liquid Precautions
Some helpful tips
Description
Safety Precautions
TABLE OF CONTENTS
03
03
04
05
05
Names and functions of Parts I
Names and functions of Parts II
How to Install
How to use
How to set your individual pH levels
How to measure pH
Some uses for alkaline and acidic water
How to replace the filter
Filter composition
Water flow diagram
How to Use
Customer Service
Trouble shooting guide
Specifications
Warranty Card
06-07
08-09
10-11
12-15
16-17
18
19
20-21
22
23
24-25
26
27
Safety Precautions
If a break down occurs, do not make a repair by yourself. Contact the place of purchase or A/S center.
Electrical power precautions
If your ionizer becomes submerged
in water, unplug the power cord from
the wall BEFORE removing the
ionizer from the water.
Failure to do so may cause electric shock!
NEVER attempt to repair or service the unit yourself.
Contact your dealer.
Attempting to do so will void your valuable warranty!
Do not use your ionizer at voltages other than specified
(AC 110V FOR USA).
Use a GFI outlet. Do not plug in your ionizer where it
will exceed the rating of outlet or electric wiring.
Failure to do so can result in fire, injury and/or
damage to yourself, wiring or ionizer!
NEVER touch the power cord or plug with wet hands
- this may result in electric shock!
220V
Ensure the power plug is firmly and
properly inserted into the outlet
- failure to do so may result in electric
shock or fire!
Do not wash your ionizer by immersion or by pouring
water over the main body;
always unplug your ionizer while cleaning the casing.
Clean with damp sponge or cloth.
Protect your ionizer from freezing
temperatures.
Protect your ionizer from direct
sunlight.
Do not put anything heavy on top of your ionizer.
Do not install your ionizer on an unstable or soft
surface. Install only on a hard and level surface.
Installation Precautions
Maintenance Precautions
Always unplug your ionizer when changing the fuse or cleaning your ionizer
- failure to do so may result in electric shock.

4 5
Safety Precautions
Common Sense Precautions
Do not attempt to repair or service the unit yourself. Contact your dealer.
Attempting to do so will void your valuable warranty!
Make sure to use your ionizer only with potable water which is suitable for
human consumption.
DO NOT use your ionizer with well water, water with extreme hardness,
high sediment or TDS levels without first consulting your dealer.
During Use
Do not run hot water through your ionizer.
Do not clean by pouring water over or spraying the
ionizer.
Do not close, bend, pinch, press or otherwise obstruct
output ports or hoses.
If the appliance makes strange or unusual noises or
burning smells are detected, unplug the power cord
immediately and contact your dealer to arrange service.
Unplug your ionizer if you plan not to use it for an
extended period or turn off the main power switch on
the back of the unit.
Filter replacement may be necessary
pH Reagent Liquid Precautions
Do not expose the pH measuring reagent to extreme heat, flames
or fire. It is combustible.
Do not drink the pH reagent liquid, put it in the eyes or apply to the body.
- If the liquid is ingested, induce vomiting immediately and call
a doctor.
- If the liquid gets in the eyes, flush immediately and thoroughly
with cool water; call a doctor.
- If spilled or dropped on your body, wash if off immediately.
Make sure to keep the pH reagent liquid tightly closed and out of the reach of children.
Some helpful tips
For storing your alkaline water, glass or ceramic is best. Always try and
keep your stored water cool and away from direct sunlight.
You can use plastic, but only use lexan (number7) or poly bottles
(Nalge type). It is always best fresh out of the machine and ideal
if consumed on a day-today basis.
Do not store alkaline water in stainless steel, bronze or
aluminum containers.
Save the box and Styrofoam your ionizer came packed in.
This will help if your ionizer needs to be transported at a later date.
Do not use an ionizer downstream of a sodium-based ion exchange
softening system or Reverse Osmosis system without first consulting
with your dealer.

6 7
Names and functions of Parts I
ⓐ Main Body
Easy to clean and durable plastic casing protects your ionizer.
ⓑ Control / FND Display Panel
Controls and function indicators are detailed on Page 12 of this manual.
ⓒ Flexible stainless steel hose
It is flexible to accommodate proper positioning.
ⓓ Flow Control Valve
This controls the flow rate of water through your ionizer.
Tip: This adjustment has DIRECT impact on the performance of your ionizer.
Tip: This adjustment has DIRECT impact on the performance of your ionizer.
SLOW FLOW = higher pH; FAST FLOW = lower pH
SLOW FLOW = higher pH; FAST FLOW = lower pH
ⓔ Key-hole Slots For Wall Mounting
To save counter space you can mount your ionizer on the wall. Note: use suitable fasteners.
ⓕ Fuse Holder
Your ionizer comes equipped with a fuse to protect it in case of power surge or fluctuation.
ⓖ Main Power Switch
You will use this switch on the back to turn on and off the power supply to your ionizer.
This switch is always left "On" (unless away for an extended period).
This switch is always left "On" (unless away for an extended period).
ⓗ Filter Housing Doors
ⓘ Back-Cover Panel
ⓙ Tap Water Inlet Port.
This is labeled with a blue sticker and is where the tap water will enter your ionizer.
ⓚ Acidic Water Outlet Port.
This is labeled with a red sticker and is where the acidic stream will exit your ionizer.
ⓒ
ⓔ
ⓕ
ⓗ
ⓘ
ⓖ
ⓐ
ⓑ
ⓓ
ⓙⓚ
[Front]
[Back]
[Bottom]

8 9
Names and functions of Parts II
PLEASE NOTE: Your panel will light up in Indigo Blue, Green or Red to indicate which function you
have selected - Alkaline, Filtered or Acidic respectively.
ⓐ LED Filter Life Indicator
This LED indicator scale shows approximate filter life. When you first use your ionizer the lowest
LED will be lit Orange. The LEDs lights will filled up the indicator scale and the LEDs lights is full,
it is time to order a new filter.
ⓑ Level Indicator
Shows Low, Medium and High settings.
ⓒ Water Flow Indicator
Shows the level or speed of water flow through your ionizer.
It shows the Blue(Alkaline), Orange(Acidic) and Green(Filtered) color.
ⓓ Low Water Pressure Indicator
When lit, this indicates insufficient operating pressure. A beep sound is activated.
Your ionizer should not be operated when low pressure LED due to potential
overheating.
ⓔ Standby Mode Indicator
The ionizer goes into the standby mode(Sleep mode) when you do not use the ionizer.
ⓕ Speaker Volume Control Button
You can adjust the speaker volume up, down and mute.
You can see the volume level in Level Indicator 0(Mute)- 1- 2- 3.
ⓖ Alkaline Water Button
Depressing this button selects Alkaline Water to come out of the Flexible Drinking Water Hose.
ⓗ Filtered Water Button
Depressing this button selects Filtered Water to come out of the Flexible Drinking Water Hose.
(Filtered Water is filtered with no change in the pH).
ⓘ Acidic Water Button
Depressing this button selects Acidic Water to come out of the Flexible Drinking Water Hose.
ⓐ
ⓑ
ⓒ
ⓓ
ⓔ
ⓕ
ⓖ
ⓗ
ⓘ

10 11
How to Install
Accessories
Acidic water
outlet
How To Install
pH test kit Diverter Hose Color chart Manual
Tap water
Inlet
Installation Method - At the sink with a diverter
1. ATTACH DIVERTER TO YOUR TAP - Remove the aerator from tap (pliers may be required), and attach
diverter valve in its place. There are adapters supplied in case the diverter does not fit your tap.
If you have leaks at the diverter, use plumber's Teflon tape. (Image No. 3)
(We are now including Teflon tape in ionizers. Please use this.).
1 2 3
Use a Teflon tape
Inlet hose
(PE hose)
Inlet Fitting(1/4”)
2. ATTACH THE WHITE TAP WATER INLET HOSE - Attach one end of the white hose to the gray port
on the bottom of the ionizer labeled "TAP WATER INLET" .
To attach the white hose, simply push it firmly into the
opening on grey port.
(If you need to remove it, press on the end of the fitting
while pulling out).
3. ATTACH THE GRAY ACIDIC WATER OUTLET HOSE
- to the white plastic port labelled ACIDIC WATER
OUTLET on the bottom of the ionizer. First, slide
a squeeze clamp over the end of the hose.
Then attach the gray hose, by simply pushing it
firmly over the white plastic port. Soaking it in hot
water for 30 seconds will make attaching it very easy.
Squeeze the clamp and position it over the white port.
Ensure the opposite end runs into the sink.
5. POSITION YOUR IONIZER - Ensure it is on a hard and level surface.
A wall mount can be done - there are keyhole slots on the back for this.
6. ATTACH THE WHITE HOSE TO THE DIVERTER - Remove the small compression nut on
the back of the diverter (opposite of the lever).
Slide the nut over the opposite end of the white hose
you attached to the TAP WATER INLET port with the
threads positioned so it will screw it back onto the
diverter. Push the hose firmly onto the nipple, then
screw the compression nut back on.
Ensure the nut is screwed firmly in place, but do
not over tighten.
7. CONNECT THE POWER CORD to an appropriate GFI outlet.
8. INSTALL FLEXIBLE STAINLESS STEEL SPOUT
- Screw this into the threaded port on the top of the ionizer. Do not over tighten.

12 13
How to Use
1. POWER UP YOUR IONIZER.
- Depress the black power button located on the back of the ionizer to the
"ON" position.
- The black power button is ALWAYS left on. Your ionizer will "go to sleep" in
between uses and "wake up" when it detects water flow again.
- You will hear a single chime and the display panel will illuminate for 2-3 seconds.
- With the power on and the display panel dark, your ionizer is now in standby mode.
2. START WATER FLOW THROUGH YOUR IONIZER
A. Set the flow control Valve - This control is on the front of machine
and has an "ON" and "OFF" position. Try initially setting this half way
between "ON' and "OFF".
Important : This is one of the most critical features in controlling your
ionizer's performance.
This control WILL DIRECTLY impact the performance of your ionizer.
A slow flow will yield higher pH; a fast flow will yield lower pH.
B. Turn on your water faucet. Turn the lever to until you "divert" the water through your ionizer.
C. Get the feel for the difference in flow rates by adjusting FLOW CONTROL VALVE from a slow
trickle to the fastest flow. When you begin ionizing the water, start with it in the medium range
and adjust faster or slower as necessary to achieve optimum results.
3. TO SELECT ALKALINE WATER
A. Start Water Flow through your ionizer.
Remember - The New ionizer cleans every times use.
But when the ionizer is operated within 1 minute, have no cleaning.
B. To select an alkaline level simply depress the "ALKALINE" button to move to next
level until the desired level is achieved. The pH level indicator will change accordingly.
C. Note: Your ionizer will always "remember" the last setting. For instance, if the previous
setting was Alkaline Level Medium, then it will go back to Medium when you start the
ionizer.
IMPORTANT NOTES:
-If you have never consumed alkaline water - do not use a setting higher than
LOW to begin with. Let your body adjust slowly and naturally for 4-7 days.
After this initial adjustment period, you may gradually increase the alkalinity of the water.
-pH levels will vary according to the minerals present in the source water and water
flow rate through your ionizer.
4. TO SELECT ACIDIC WATER
Note: Acidic water is for external use only. DO NOT DRINK.
1. With water running through the ionizer:
2. Depress the "ACIDIC" button. The Acidic Water Indicator will light and the pH Level
Indicator will move up and down the scale to indicate the selected level.
3. To select a different level, depress the "ACIDIC" button to move to next level until
the desired setting level is achieved. The orange symbol and number
will change accordingly.

14 15
How to Use
5. TO SELECT "FILTERED" WATER
1. Start water flow through your ionizer.
2. Depress the "FILTERED" button. The Filtered Water Indicator will be illuminated.
"Filtered Water" runs through the Biostone filter, but does not receive any ionization.
The Filtered water comes out of the stainless steel spout.
6. HOW TO SHUT OFF THE WATER FLOW FROM YOUR IONIZER
Rotate the diverter lever until the water flow from the ionizer stops and reverts to the faucet.
The water will stop and the display panel will go dark indicating the ionizer is in standby
or "asleep".
How to Reset the Filter Life
When the digital filter life indicator reaches full bar it is time to replace your filter.
Please replace the new filter and reset the filter life.
Press the Alkaline button
about 3 seconds
Press the Acidic button
about 3 seconds
1st Filter Life 2nd Filter Life
CLEAN
When the ionizer is operated Automatic Cleaning,
Level Indicator shows the CLEAN spell while
cleaning the water cell of ionizer.
CAUTION
After 20 liters of water have flowed through the
units, it will do an autoclean for 15 seconds.
For example, if the ionizer is used first for 15
liters and then is used for 5 liters, upon the
next use, the unit will do an auto clean for
15 seconds.

16 17
How to set your individual pH levels
(Only do the following if when using reagent drops you are unable to get yellow in
acidic range and blue in the alkaline range)
The default setting is level 3.
The pH level indicator shows the current level.
If the filtered button is pressed and held the alkaline
and acidic levels can be set.
It is possible to choose between settings level 1 to 3.
After setting the unit, if the buttons are not pushed for
another 5 seconds or if the water is run through the unit,
the last setting chosen is remembered.
Depress the "ALKALINE" button to raise to
the desired setting, and depress the "ACIDIC"
button to lower to the desired setting.
Turn on the main switch on the rear case
and pressing the Filtered button about 5 seconds on the front.
For 5 seconds
How to control volume levels
You can adjust the speaker volume up, down and mute.
You can see the volume level in Level Indicator 0(Mute)- 1- 2- 3.

18 19
1
2
3
If the reagent and water are not mixed well, the correct result may not be
displayed.
Fill one of the receptacles provided about 1/4 full
with alkaline, acidic or purified water.
ALKALINE
WATER
ACIDIC
WATER
PURIFIED
WATER
ALKALINE
WATER
ACIDIC
WATER
PURIFIED
WATER
How to Measure pH
Drop 2 or 3 drops of the pH reagent into the container
and shake it.
The pH value is determined by matching the color the pH
color chart provided.
DO NOT consume water containing reagent
Keep the pH reagent liquid, color chart, and test tubes away from direct sunlight
KEEP pH reagent liquid AWAY FROM CHILDREN and OPEN FLAMES!
For contact with eyes, flush liberally with fresh water, seek medical help
If ingested, induce vomiting, seek medical help
Important Note: Water quality and mineral content vary greatly in different localities
and will directly impact performance of your ionizer with respect to pH.
How to measure pH
Some uses for the different levels of Alkaline Water
What would I use the Filtered Water for?
The pH of Filtered water is neither raised nor lowered and would be the same as
your tap water.
This water is simply cleaned of impurities by the advanced filtration system.
You can use it both as drinking water and to take medications with.
Some uses for the different levels of Acidic Water
Alkaline water levels Note: pH levels will always vary with different source water.
Weak Alkaline water (pH7.5 -
pH8.5). This level is used for
initial consumption period
(4-7 days). Let your body
adjust slowly to this increase
in pH.
Weak to Medium Alkaline
water (pH8 - pH9). Move
up to this level after the
initial adjustment period.
Adjust to this level for 3-4
days. Most people will drink
at level 2 or 3.
Strong Alkaline water (pH9.5
- pH10+). Generally, most
people find this very strong
tasting and with powerful
detoxifying effects.
Medium to Strong Alkaline
water (pH8.5 - pH9.5).
This is the most common level
of alkalinity for drinking
purposes. Some people may
start to detect a strong change
in taste.
Descriptions of Acidic water levels Note: pH levels will vary with different source water.
Weak Acidic water (pH6.5 -
pH5.5). Used for oral hygiene,
mouth wash etc.
Weak to Medium Acidic
water (pH6 - pH5.5).
For skin care, as an
astringent.
Strong Acidic water
(pH5 and lower).
For sterilization purposes.
Medium to Strong Acidic water
(pH5.5 - pH5).
For cleaning in the kitchen.
Level 1
Level 1
Level 3
Level 3
Level 2
Level 2
Level 4
Level 4
Level 1
Level 1
Level 3
Level 3
Level 2
Level 2
Level 4
Level 4
Some uses for Alkaline
and Acidic WATER

20 21
How to replace the filter
IMPORTANT! Stop water flow prior to filter replacement.
When the digital filter life indicator reaches full
or you see the flickering filter symbol,
it is time to replace your filter.
1
Open the filter housing cover.
2
3Remove the expired filter.
-Taking hold of the filter securely with you right hand, press the
filter firmly down against the spring loaded mechnism to disengage
the top of the filter and then lean the filter out toward you and lift up
to remove it.
-The upper part of the filter is separated from housing by pressing
firmly down. Once you have engaged the spring loaded mechanism,
you can then easily remove the filter from the main body by
leaning the filter out toward you and life up to remove it.
4 Insert the new filter into the compartment.
-Remove the plastic caps covering both ends of the new filter.
-Seat the large opening on the bottom of the filter cartridge onto the base.
-Push the filter down and into the housing compartment ensuring the opening at the top
of the filter is seated properly into the fitting at the top of the housing.
5
6
7
8
Flush out the GAC carbon dust.
Reset the filter life indicator.
Replace the filter housing cover.
Press the Alkaline button
about 3 seconds
Press the Acidic button
about 3 seconds
1st Filter Life 2nd Filter Life
NOTE : This procedure is the same for both filters
-Push in on the plastic ridges in the center of the
filter housing cover on the side while pulling the
door out and to the left. Swing door out and remove it.
Check the leaks by running water through your ionizer before replacing the
housing cover.
-The water will initially come out discolored(light to charcoal gray) due to carbon dust
in the new filter. This is not harmful and is typical of all GAC filters.
Allow the water to flow for 2-3 minutes in the “Filtered” mode and this will flush all the
carbon dust.

22 23
Filter composition Water flow diagram
Calcium:
It slightly increases the alkaline mineral content in your water. It improves water taste and odors,
You get calcium on tap!
Non-woven fabric filter
Filters out sediment and particulate.
Granular Activated Carbon (GAC) :
The workhorse of the filtration media. GAC is especially effective at removing chlorine, its odor
and taste, agricultural chemicals, phenol, trihalomethane and other chemical contaminants.
Silver is impregnated into the granular activated carbon to inhibit bacterial growth in
between use.
Non woven fabric filter :
Filters out sediment and particulate.
Composition of filter
Water flow
sensor
Water
cell
Acidic
water
Filter
Tap water
Water supply valve

24 25
Trouble Shooting Guide
The Function Display
Panel does not come on.
A power plug is not property
inserted, or it is inserted into a
faulty outlet.
The fuse is blown.
The fuse is not inserted properly.
ResolutionCause(s) Abnormal condition ResolutionCause(s) Abnormal condition
Properly insert power plug into
a correctly functioning power
outlet
Replace the fuse. A spare fuse
is included in your reagent kit.
(3A / 250V fuse)
The Function Display Panel /
display indicators do not
come on even after turning
the tap on.
Faulty PCB
(Printed Circuit Board)
Immediately unplug the unit
and contact your dealer to
arrange service.
pH test shows alkaline water
color as neutral (7) while
acidic water color gets
yellow (6). This is normal
if initial pH is 6.5
Faulty or evaporated reagent:
alkaline / acidity are always
produced in inverse proportion.
Therefore, showing an acidic
color means inversely that
alkaline water has to be
generated from the unit.
Lack of alkaline color can
result from a chemical
reaction where carbonic
acid in water evaporates
some test reagent elements.
Test pH value on level
3 or 4 water;
replace reagent.
Power supply is suddenly
cut off while operating the
unit.
Elevated level of salt in the
water or high TDS; extended
operation at high pH;
sudden flux in electrical
current. In these cases your
machine will shut down
automatically to protect the
electrodes and circuitry.
Wait - the unit will become
operational again after about
one hour. Your ionizer has a
safety mechanism built-in to
protect the electrodes and
circuitry. This mechanism will
shut the ionizer down
automatically. This mechanism
protects the unit from overuse
or excessive electric current.
Low output of alkaline water
from the unit.
Filter is clogged. Premature
clogging may be caused by
sudden drop in water quality and
an influx of sediment or other
contaminants, which stress
the filter.
Low pressure in your household
plumbing.
The input hose is bent, kinked or
otherwise restricted.
Replace your filter.
Clean Pre-filter
Ensure water supply valves are
fully open. The water pressure
in house may be too low.
Straighten the bent hose.
Strange smell from
Alkaline water.
Expired filter from ordinary use
or premature clogging due to
flux in water quality.
Sudden flux in water quality with
elevated level of Choline
(not Chlorine). Elevated Choline
levels are observed in some
areas during summer months.
These levels fall within safe
drinking water standards, yet
will cause a reaction with ionized
water causing a unique smell.
Replace your filter.
Select lower pH level (1-2).
If still present, filter replacement
may be necessary.
Water appears milkish;
white snow like particles
in the bottom of your glass.
You have high hardness (calcium
primarily) in your water. The white
is extracted CaCO3 (Calcium
carbonate). After Co2 in water is
bonded with Ca where elevated
levels of CO3 exist in your water.
In water where elevated levels of
CO3 exist, what you see after
ionization is Co2 in the water
bonded with Ca.
This is calcium! It is not only
harmless, but actually good for
you. Remember the ionizer
separates and condenses the
alkaline minerals and this is what
you are seeing. You can lower
the setting (1-2) and reduce
this effect. Typically this only
occurs in hard water areas.
At first no smell, but then
smell from the alkaline
water about one hour after.
Your water bottle or receptacle
is foul and needs cleaning.
Contamination mixes with
alkaline water when filling your
bottle. Expired filter.
Clean your bottle or receptacle.
Try selecting lower pH level
(1~2). Replace your filter.
Water leakage from the
filter cartridge housing.
Filter not installed correctly
into filter housing.
Remove your filter and reinstall it
properly following the filter
replacement instructions.
Increase the quantity of source
water inflow.
No acid water flow from the
acidic output port.
Acidic output hose is bent,
kinked or otherwise restricted.
Straighten the bent hose;
increase water flow from supply.

26 27
Specifications Warranty Card
MAX 150W
/ 230Vac, 50Hz
EN-7P
Approx 4.3kg
7 Platinum and Titanium
Automatic Cleaning
FND indicator
(W)340 X (H)330 X (D)140 (mm)
Max 5 Liters/Min (Alkaline+Acidic)
1.Warranty Detail
This product passed the precise inspection under strict quality control.
In case the product is found to have any defect in production or to
get any spontaneous mechanical malfunction within the warranty term,
return the unit to our sales agency, distributor or our service
center along with this warranty card for repair free of charge.
2.Warranty term
24 months from a purchasing date.
3.Exception to warranty
Expiration of warranty terms.
Defect caused by a natural disaster.
Damage or malfunction resulting from misuse.
4.Compensation criteria
Product repair, product exchange or refund as per the Consumer
Sufferings compensation Criteria regulated by The Ministry of
Commerce and Industry, The Republic of Korea.
Model
Purchasing date
Warranty term
Purchaser name
Address
Distributor Name
Address
EN-7P
( )th Day, ( )Month, ( )Year
Till( )th Day, ( )Month, ( )Year
Fill in this warranty card upon receipt of new unit.
Receipt can be in force as warranty card.
WARRANTY CARD