Puretec NTR-E3 Series User manual

User Guide
Volumetric Nitrate Reduction System
NTR-E3 Series
For correct operation & installation it is essential to observe these instructions.
JAN2020

2 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
What's Inside
What's Inside
Puretec Customer Service ............................................................................................................................3
Installation Record ............................................................................................................................................4
Before Installation..............................................................................................................................................5
Specications........................................................................................................................................................7
Exploded Diagram..............................................................................................................................................8
Diagram Identication .....................................................................................................................................9
Installation Procedure...................................................................................................................................10
Programming .....................................................................................................................................................14
Start-Up ................................................................................................................................................................16
Regeneration......................................................................................................................................................16
Replenishment of Salt Supply ..................................................................................................................17
Type of Salt to Use.........................................................................................................................................17
Brine Tank Clean-Out (Yearly)...................................................................................................................17
Media Replacement........................................................................................................................................17
Bypass Valve Operation - optional accessory .................................................................................18
Troubleshooting Guide..................................................................................................................................19
Warranty...............................................................................................................................................................23

3Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Puretec Customer Service
Thank you for purchasing a Puretec Volumetric Nitrate Reduction System. Your system
is a proven performer manufactured from only quality materials and components. It will
give years of reliability and trouble free operation if maintained properly.
This user guide is designed for Puretec NTR-E3 Water Treatment Systems. Be careful to
ensure the information and illustration is applicable to your particular unit.
Caution: Do not use with water that is microbiologically unsafe or without
adequate disinfection before or aer the system.
The systems are designed for metropolitan supply water but can be used in other
situations. For other types of water supply, please contact your local Puretec dealer.
Puretec Water Treatment Systems are designed to run economically for many years,
dependent on the initial installation and periodic maintenance.
• For point of entry installations an approved dual check backow prevention device
must be installed.
• Pressures above 500 kPa must have PLV must have a pressure limiting valve
installed.
• Flush system for 5 minutes or more, aer any period of non-use, more than 2
weeks.
Note: Water soener salt not supplied.
Puretec Customer Care

4 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Product Information
Model Number:
Serial / Batch Number:
Purchased from:
Date of Installation:
Installer / Plumber Details:
Water Analysis Information
Hardness: ___________ ppm / mg/L
Iron: ___________ ppm / mg/L
Manganese: ___________ ppm / mg/L
pH: ___________
TDS (Total Dissolved Salts): ___________ ppm / mg/L
Conductivity: ___________ EC / uS/cm
Chloride: ___________ ppm / mg/L
Sodium: ___________ ppm / mg/L
Nitrate: ___________ ppm / mg/L
Sulphate: ___________ ppm / mg/L
Installation Record
For future reference, ll in the following data
Installation Record

5Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Before Installation
Professional Installation Required
• Installation requires shutting water o to home, cutting home water supply pipe
and using a welding torch to add piping and ttings. Specialised tools and skills are
required, this must be completed by a qualied tradesperson.
Make Sure Your Water Has Been Thoroughly Tested
• An analysis of your water should be made prior to the selection of your water
treatment equipment. Enter your analysis information on page 4 for your permanent
record.
Note: If sulphate level is higher than the nitrate level, contact Puretec prior to
installation.
Install Water Conditioning Equipment Correctly
Select the location of your system with care. Various conditions which contribute to
proper location are as follows:
• Install as close as possible to a drain.
• Install in correct relationship to other water treatment equipment. Contact Puretec
for assistance.
• Install the system in the supply line BEFORE the water heater. Temperatures above
43.3°C (110°F) will damage the unit and void the warranty.
• DO NOT install the soener in a location where freezing temperatures occur.
Freezing may cause permanent damage and will also void the warranty.
• DO NOT install where water hammer conditions may occur without installing an
arrestor.
• Allow sucient space around the installation for easy servicing. Provide a non-
switched 240V power source for the control valve.
Things to Remember While Planning Your Installation:
Before Installation

6 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
• The control valve, ttings and/or bypass are designed to accommodate minor plumbing
misalignment but are not designed to support the weight of a system or the plumbing.
• Do not use petroleum jelly, oils, other hydrocarbon lubricants or spray silicone anywhere.
A silicone lubricant may be used on the black O-rings but it is not necessary.
• Do not use pipe dope or other sealants on threads. Thread seal tape is the preferred
sealant but is not necessary on the nut connection or caps because of o-ring seals.
• All plumbing should be done in accordance with local plumbing codes. The pipe size for
the drain line should be a minimum of ⅝”.
• Avoid getting primer and solvent cement on lter system.
• Install grounding strap on metal pipes if required.
• Ensure the system is protected against high pressure and extreme temperatures.
• All installation procedures MUST conform to local plumbing codes.
• If lawn sprinklers, a swimming pool, or geothermal heating/cooling or water for other
devices/activities are to be treated by the system, a larger model MUST be selected
to accommodate the higher ow rate plus the backwashing requirements of the
water treatment system. Contact Puretec for assistance.
Installation Note: A water lter system/tap, like any product, has a limited life and may
eventually fail. Also sometimes failure happens early due to unforeseen circumstances.
To avoid possible property damage, this product should be regularly examined for
leakage and/or deterioration and replaced when necessary. A drain pan, plumbed to an
appropriate drain or outtted with a leak detector, should be used in those applications
where any leakage could cause property damage, and/or the water supply should be
turned o if no one is home/present.
WARNINGS
Before Installation

7Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Specications
Specications
Operating Pressure Min/Max: 180-520 kPa
Operating Temperature Min/Max: 0-48 °C (protect from
freezing)
Electrical Connection: 240V / 50 Hz
Inlet/Outlet Connection: 25 mm
Drain Connection: ⅝”
Overow Connection: ⅝”
Width (mm) (W): 285
Height (mm) (H): 1125
Depth (mm) (D): 490
Maximum salt storage capacity: 50 kg
1125
285 490

8 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Exploded Diagram
Exploded Diagram
1
2
3
4
5
7
9
8
11
12
15
16
18
17
14
13
6
10

9Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Item Part no Description
1 WTD2030 Riser Pipe
2 - Pressure Tank
3 WTB1035 Cabinet Domestic
4 - Brine Well
5 - Brine Pick-Up Assembly
6 WTB1035 2pc Overow Kit
7 - Brine Tank Lid
8 - Brine Well Blank
9 - Brine Well Lid
10 WTV3030 Pressure Tank Collar UV Shield
11 WTD1010 Top Screen
Item Part no Description
12 WTV4200 Volumetric Valve
13 WTV5135 Transformer Suits Auto Valves
14 - Drain Tube Assembly
15 WTB2100 Cover
16 WTV5060 Plastic Fitting Kit
17 WTV5000 Bypass Assembly (purchased
separately)
18 KTU6BK Tubing High Pressure 3/8" Black
* WTV5520 Spacer Stack Assembly
* WTV5730 E3 Volumetric Circuit Board
Diagram Identication
Brine ⅜”
Outlet 1"
Control Panel
Inlet 1"
Drain ⅝”
Parts Identication
Parts Identication
*Not shown but pre-installed.

10 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Installation Procedure
Ensure Water Has Been Tested
Input values into Table on page 4 and the analysis has been inspected by Puretec.
3
Water Analysis Information
Hardness ___________ ppm / mg/L
Iron ___________ ppm / mg/L
Manganese ___________ ppm / mg/L
pH ___________
TDS (Total Dissolved Salts) ___________ ppm / mg/L
Conductivity ___________ EC / uS/cm
Chloride ___________ ppm / mg/L
Sodium ___________ ppm / mg/L
130
0.3
0.1
7
275
404
121
96
✓✓
Customer Service Helpline
1300 140 140 (AU) 0800 130 140 (NZ)
✓
Extra Items Required
2
Unpack the Equipment
Ensure all parts are present and have not been damaged in transport.
You should have:
1
User Guide
Volumetric Nitrate Reduction Appliance
NTR-E3 Series
Forcorrect operation & installation it is essential to observe these instructions.
DEC2019
Water Treatment System
Drain Tube Assembly
Bypass Assembly
(purchased separately) User Guide
⅝" Tubing high pressure for
drain and overow (refer to
page13).
Bag of Salt (refer to page
17 for the type of salt to
be used).
Installation Procedure

11Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Position the Water Treatment System on a Level Surface
Installing the Bypass (purchased separately)
Environmental conditions
Operating temperature: 0-48°C
Water conditions
Temperature: 0-50°C
Pressure: 180-520 kPa
Uninstall the plastic ttings
by turning the knob counter
clockwise.
Connect the bypass assembly followed
by the plastic ttings. Hand tighten the
knobs, do not overtighten.
Refer to page 18 for bypass operation.
4
5
Installation Procedure

12 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Connecting the Water Treatment System
Connect the system to main plumbing. Do not solder brass adapters while they are
inserted in the control module.
6
Apply plumbing tape to
the nipple as required.
Connect the pipe work to the
valve, refer to page 9 for
identication.
Installation Procedure
Note: Solder joints must be
done prior to connecting to the
valve ttings. Leave at least 6”
between the tting and solder
joints when soldering pipes.
Failure to do this could cause
heat damage to the ttings.
This should be carried out by a
qualied tradesman.
FOLLOW LOCAL
PLUMBING CODES

13Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Programming
6.1 Plug into an uninterrupted electrical outlet.
Note: the system transformers are not weather resistant and should be
adequately protected. All electrical connections must be connected accordingly to
local codes.
6.2 Proceed to ‘Programming’ section.
9
Connecting the Drain Line
Locate the 300 mm drain tube and attach to the drain connection, refer to page 9 for
identication of the drain port.
Connecting the Overow
7
8
Connect tubing onto the 5/8” overow
tting (tubing not supplied) and run the
line to the drain. Do not connect the
overow into the drain line, as it must
be a direct and separate line to the
drain. Allow an air gap as per the drain
line. Make sure the drain is not higher
than the overow.
Connect extra tube (tubing not supplied)
onto the 5/8” drain line from the valve
to the drain. Ensure the drain line is not
kinked. The line must not travel more
than 2.4 m up from the valve, otherwise
increase the diameter of the drain line.
Connect drain and overow to sewer or
storm water, whatever is approved by
local authority for salty discharge water.
Ensure drain line has an adequate air gap
of 2 times the pipe diameter or 25 mm,
whichever is larger.
DRAIN
DRAIN
Installation Procedure

14 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Set Time of Day
Time of day should only need to be set on installation or when
daylight saving time begins or ends.
1. Press "SET CLOCK".
2. Current Time (hour): Set hour of the day by using ▲ or ▼.
Press "NEXT" to go to next step.
3. Current Time (minutes): Set the minutes of the day using
▲ or ▼. Press "NEXT" to exit Set Clock.
Installer Display Settings
Note: Press "REGEN" at any time to return to previous step.
1. Press "NEXT" and ▲ simultaneously for 3 seconds.
2. Hardness: Set the amount of nitrate using ▼ or ▲. The
default is 20 with value ranges from 1 to 150 in increments
of 1. The conversion factor is 5 (divide mg/l or ppm by 5).
Press "NEXT" to go to the next step.
3. Day Override: Preset to default (7 days). Set Day Override
using ▲ or ▼.
• Number of days between regeneration (1 to 28); or
• oFF
If set to a number a regeneration will be called for even if
the capacity has not been reached.
Note: Manual or automatic regeneration will reset the day
override counter.
Press "NEXT" to go to the next step.
Programming
Programming
1
SET
CLOCK REGEN
NEXT
SET TIME
PAM
SET
CLOCK REGEN
NEXT
PAM
SET TIME
1
2
3
SET
CLOCK REGEN
NEXT
SET
CLOCK REGEN
NEXT
SET HARDNESS
2
SET
CLOCK REGEN
NEXT
SET HARDNESS
REGEN
DAY
3
SET
CLOCK REGEN
NEXT
RETURN TO NORMAL MODE

15Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
TIME
SOFTENING P M
REGEN
TODAY
REGEN TODAY will ash if a regeneration is
expected ‘Tonight’.
SET
CLOCK REGEN
NEXT
DAY
GAL
REGEN
TODAY
SET
CLOCK REGEN
NEXT
OR
SET
CLOCK REGEN
NEXT
REMAINING
CAPACITY REMAINING
SOFTENING
Programming
AM
REGEN
SET TIME
4
SET
CLOCK REGEN
NEXT
AM
REGEN
SET TIME
5
SET
CLOCK REGEN
NEXT
4. Next Regeneration Time (hour) Preset to default to
2:00am : Set the hour of the day for regeneration using
▲ or ▼ buttons. The default time is 2:00. This display
will show "REGEN on 0 GAL" if "on 0" is selected in Set
Regeneration Time Option in Advanced Programming.
Press "NEXT" to go to the next step.
5. Next Regeneration Time (minutes): Set the minutes of
the day for regeneration using ▲ or ▼.
This display will not be shown if "on 0" is selected in Set
Regeneration Time Option in Advanced Programming.
Press "NEXT" to exit Installer Display Settings.
General Operation
When the system is operating, one of the following displays may
be shown. Pressing "NEXT" will alternate between the displays:
• Current Time of Day
• Days: Days remaining is the number of days left before the
system goes through a regeneration cycle.
• Capacity Remaining: Capacity remaining is the number of
gallons that will be treated before the system goes through a
regeneration cycle.
•
If the system has called for a regeneration that will occur at
the present time of regeneration, the words "REGEN TODAY" will
appear on the display.
If a water meter is installed, the word "SOFTENING" flashes on the
display when water is being treated (i.e. water is flowing through
the system).
RETURN TO NORMAL MODE

16 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Start-Up
Regeneration Mode
Typically a system is set to regenerate at a time of low water
usage. An example of a time with low water usage is when a
household is asleep. If there is a demand for water when the
system is regenerating, untreated water will be used.
When the system begins to regenerate, the display will change to
include information about the step of the regeneration process
and the time remaining for that step to be completed. The system
runs through the steps automatically and will reset itself to
provide treated water when the regeneration has been completed.
Manual Regeneration
Sometimes there is a need to regenerate the system sooner
than when the system calls for it, usually referred to as manual
regeneration. There may be a period of heavy water usage
because of guests or a heavy laundry day for example.
Immediate Regeneration: To initiate a manual regeneration
immediately, press and hold the "REGEN" button for three seconds.
The system will will beging to regenerate immediately.
Note: The control valve may be forced through the various
regeneration cycles by pressing the "REGEN" button.
Delayed Regeneration: To initiate a manual regeneration at the
preset delayed regeneration time, press and release "REGEN". The
words "REGEN TODAY" will flash on the display to indicate that the
system will regenerateat the preset delayed regeneration time.
If you pressed the "REGEN" button in error, pressing the button
again will cancel the request.
If the regeneration time option is set to "on 0" there is no set
delayed regeneration time so "REGEN TODAY" will not activate if
the "REGEN" button is pressed.
Power Loss: Your Puretec electronic control valve maintains the
time for up to 8 hours using the internal PCB battery if power is
interrupted.
If the time flashes on & off after a power loss the time of day
should be reset & the CR2032 button battery replaced. Note:
All other settings will not require reprogramming. In the unlikely
event of a power loss during a backwash, when the power is
restored, a dry-reset should be performed (see page 19), followed
by a manual regeneration if convenient.
CAPACITY REMAINING
GAL
REGEN TODAY will ash if
a regeneration is expected
‘Tonight’.
SET
CLOCK REGEN
NEXT
REGEN
TODAY
BACKWASH
REGEN
Cycle Time Remaining
(minutes & seconds)

17Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Replenishment of Salt Supply
The salt storage capacity of the brine tank is approximately 50 kg. During each regeneration a
small amount of salt is consumed, thus requiring periodic replenishment for a continuous supply
of soened water (the frequency and salt dosage level is dependent on the regeneration sched-
ule).
We recommend to maintain the salt level in the brine tank to 1/2 to 2/3 full. The water level in
the brine tank is maintained automatically and does not require manual intervention. NOTE: The
water level is usually below the salt level & therefore cannot be seen (this is not a problem).
Always replenish salt before the supply is exhausted.
Note: No extra water is required when topping up the salt level.
Type of Salt to Use
Any type of water soener salt may be used, but for best results, we recommend using coarse
solar salt called "water soener salt" or alternatively "pool salt".
Brine Tank Clean-Out
To help prevent service problems the brine tank should be emptied and ushed out with a
garden hose, when dirt and other insolubles accumulate.
Clean out with a wet/dry vacuum. Then add approximately 15L of water and rell with salt.
Media Replacement
Resin ordering code: RMK-NTR40 for NTR40-E3.
Customer Service Helpline at 1300 140 140 (AU) and 0800 130 140 (NZ) for more details.
The nuts and caps are designed to be unscrewed or tightened by hand or with the special plastic
wrench. If necessary a pliers can be used to unscrew the nut or cap. Do not use a pipe wrench
to tighten or loosen nuts or caps. Do not place screwdriver in slots on caps and/or tap with a
hammer.
Replenishment of Salt Supply

18 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
SUPPLY WATER
EXITS
SUPPLY WATER
ENTERS NO WATER EXITS
SUPPLY WATER
IS SHUT OFF
FROM THE HOUSE
& THE VALVE
‘TREATED’ WATER
EXITS
SUPPLY WATER
ENTERS
SUPPLY WATER
EXITS
SUPPLY WATER
ENTERS
OF F
OF F
OF F
OF F
Normal Operation Bypass Operation
Diagnostic Mode Shut Off Mode
Bypass Valve Operation - optional accessory
Bypass Operation

19Copyright © Puretec Pty Ltd 2020 NTR-E3 User Guide
Troubleshooting Guide
Troubleshooting Guide
‘Dry’ Reset Procedure
From time to time, the valve may
display an error code for various
reasons. The first troubleshooting step
is to perform a ‘dry’ reset.
Remove the faceplate, opening the tabs on either side of the valve. This will expose the
Power Circuit board with a number of wires connected.
On the bottom right hand corner is a 4 pin adaptor labelled ‘12VAC PWR’, disconnect the
adaptor and reconnect after 5 seconds. The valve will then whir twice, and should return
to the normal screen.
If the error message is still present, refer to the troubleshooting guide.
PROBLEM POSSIBLE CAUSE SOLUTION
No display/blank screen on valve. A. Transformer not connected. A. Connect transformer.
B. No power at outlet/source. B. Use working outlet/repair outlet.
C. Switched outlet/improper voltage. C. Use uninterrupted outlet/ensure source is
delivering proper voltage.
D. Dead battery. D. Replace battery (CR2032).
E. Defective transformer. E. Replace transformer.
F. Defective PC Board. F. Replace PC Board.
Valve does not display correct time of day. A. Power outage(s). A. Reset time of day, replace battery
(CR2032).
B. Time of day set incorrectly. B. Reset to correct time of day.
C. Switched outlet. C. Use uninterrupted outlet.
D. Tripped breaker switch. D. Reset breaker switch.
E. Defective PC Board. E. Replace PC Board.
Valve regenerates at wrong time of day. A. Power outage(s). A. Reset time of day, replace battery
(CR2032).
B. Time of day set incorrectly. B. Reset to correct time of day.
C. Time of regeneration set incorrectly. C. Reset regeneration time.
D. Control valve set for immediate
regeneration.
D. Contact Puretec for assistance.
E. Control valve set for delayed and/or
immediate regeneration.
E. Contact Puretec for assistance.
Time of day flashes on and off. A. Power outage(s). A. Reset time of day, replace battery (CR2032)
and then perform a ‘dry’ reset.

20 Installation & Operation Manual Copyright © Puretec Pty Ltd 2020
Troubleshooting Guide
Troubleshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
Valve does not regenerate when performing a
manual regeneration.
A. No power to valve. A. Refer to ‘No display/blank screen on valve’.
B. Broken drive gear or drive cap assembly. B. Replace drive gear or drive cap assembly.
C. Broken piston rod. C. Replace piston rod.
Valve does not regenerate automatically, but
does when performing a manual regeneration.
A. Bypass valve in bypass position/faulty. A. Turn bypass to normal operation/replace
bypass.
B. Meter loosely/not connected to PC Board. B. Connect meter into the three pin connector
labelled METER on PC Board.
C. Restricted/stalled meter turbine. C. Remove meter and check for rotation or
foreign material.
D. Incorrect programming. D. Contact Puretec for assistance.
E. Defective meter. E. Replace meter.
F. Defective PC Board. F. Replace PC Board.
Untreated water delivered to service. A. Bypass valve is in bypass operation/faulty. A. Turn bypass to normal operation/replace
bypass.
B. Media is exhausted due to high water
usage.
B. Check program settings or diagnostics for
abnormal water usage.
C. Fouled media bed. C. Clean/replace media.
D. Meter not registering/faulty. D. Remove meter and check for rotation or
foreign material/replace meter.
E. Water quality fluctuation. E. Test water and contact Puretec for
assistance.
F. No regenerant or low level of regenerant. F. Refill regenerant tank.
G. Valve fails to draw regenerant. G. Refer to 'Valve fails to
draw in regenerant'.
H. Insufficient regenerant level in regenerant
tank.
H. Contact Puretec for assistance.
I. Leak from seal/spacer stack assembly. I. Clean/replace spacer stack assembly.
Control valve uses too much regenerant. A. Incorrect refill setting. A. Contact Puretec for assistance.
B. Incorrect program setting. B. Contact Puretec for assistance.
C. Valve regenerating frequently. C. Check for leaking fixtures or system
undersized.