Avidity Science Puro 3 Series User manual

Puro™ Range
Water Purification System
PURO10 / PURO20 / PURO50 / PURO80
Series 3
Operation Manual
OP-000106
Revision A
March 2019

© 2019 Avidity Science, LLC. All rights reserved.
Other brand and product names are trademarks or registered trademarks of their respective holders.
Although Avidity Science, LLC. has taken every precaution when preparing this manual, Avidity Science, LLC
assumes no responsibility for errors or omissions, nor does Avidity Science, LLC assume liability for damages
to your system resulting from the use of the information in this manual.
Information in this document is subject to change without notice and does not represent a commitment on the
part of Avidity Science, LLC.
NORTH AMERICA OFFICE
819 Bakke Avenue
Waterford, WI 53185-5913
833.898.3420
E-mail: US.T[email protected]
www.AvidityScience.com
EUROPE & ASIA OFFICE
Unit D4 Drakes Park
Long Crendon HP189BA
Tel: [phone]
E-mail: UK.T[email protected]

Avidity Science, LLC Puro Range Water Purification System Operation Manual
Contents i
Contents
Important Safety and Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
RoHS/WEEE Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Hazard and Special Safety Notice Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Product Warnings - Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Product Warnings - Chemical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Product Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
Contacting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Puro Water Purification Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Purification Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Primary Operation Menus and Sub-menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Consumable Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Alarms (Warnings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Change Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Configure User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Warnings Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replace Pre-Treatment Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Change the RO Membranes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Replace Air Filter on External Storage Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Consumables and Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
External Storage Tank Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Puro Range Water Purification System Operation Manual Avidity Science, LLC
ii Contents
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Avidity Science, LLC Puro Range Water Purification System Operation Manual
Important Safety and Service Information iii
Important Safety and Service Information
The customer should comply with their organization’s Electrical Safe Practices as recommended by the
Occupational Safety and Health Administration (OSHA), or local and national safety codes.
This equipment must be operated by qualified persons who are knowledgeable and trained in its operation,
and its associated hazards.
Use caution when operating, or servicing this equipment. It is the user’s responsibility to read and under-
stand the content of this manual before operating this equipment.
SAVE THESE INSTRUCTIONS
RoHS/WEEE Statement
Avidity Science, LLC water treatment, automated watering, environmental monitoring, and access control
systems specified in this manual are manufactured in compliance with the RoHS Directive
(EU Directive 2011/65/EU and subsequent amendments.
Hazard and Special Safety Notice Definitions
Below is a list of definitions of hazard symbols used on this product.
This manual may contain the following types of special notices.
IMPORTANT: Indicates information that is necessary to understanding a topic or performing a procedure.
NOTE: Indicates information that may be helpful in understanding a topic or performing a procedure.
WARNING! Risk of electrocution or electrical shock resulting in death or severe
personal injury.
WARNING! Could result in death or serious personal injury or equipment dam-
age.
CAUTION! Minor or moderate injury or equipment damage

Puro Range Water Purification System Operation Manual Avidity Science, LLC
iv Important Safety and Service Information
Product Warnings - Electrical
Product Warnings - Chemical
WARNING! Electric shock. The electrical equipment in this system must be
connected to a ground fault interrupting circuit. Failure to do so can cause elec-
trical shock resulting in severe personal injury or property damage.
WARNING! Electrocution. Never stand in water when handling electrical equip-
ment. Water is a conductor of electricity. Standing in water while operating this
equipment can cause electrical shock or electrocution resulting in severe per-
sonal injury.
WARNING! Add acid to water. Do not add water to acid. When refilling the acid
solution tank(s), make sure there is at least 1 gallons [37.8 liters] of water in the
tank before adding the acid. Adding a small amount of water to the concen-
trated acid will cause hot temperatures and possibly spattering of the caustic
liquid.
WARNING! Toxic gas. Do not add acid to the chlorine solution tank. Mixing of
chlorine and acid will produce a toxic chlorine gas that can result in death or
personal injury.
WARNING! Severe personal injury. Bleach causes severe eye and skin irrita-
tion or burns. Bleach is a strong oxidizer. Contacting bleach with other material
may cause fire. Bleach is harmful if swallowed. Keep bleach from contacting
clothing and other combustible materials. Avoid contact with eyes, skin, and
clothing. Keep bleach in tightly closed container. Wash thoroughly after han-
dling.
Precautionary Statements: Bleach contact with skin may cause ulcers, local
discoloration, or eczema. Contact with skin or eyes may cause severe irritation
or burns. Ingestion may cause severe burning to mouth and stomach and may
be fatal.
First Aid Procedures: If bleach is swallowed, do not induce vomiting. If con-
scious, give two glasses of water or milk. In case of contact with skin or eyes,
immediately flush with plenty of water for at least 15 minutes while removing
contaminated clothing and shoes. In all cases, contact a physician. Consult
Material Safety Data Sheet for further health and safety information.

Avidity Science, LLC Puro Range Water Purification System Operation Manual
Important Safety and Service Information v
Product Cautions
Contacting Technical Support
For up to one year after your system installation date, you may contact Avidity Science for free technical
support. All contact information appears in the tables below.
UK Support
US Support
China Support
CAUTION! Equipment Damage. Follow all nationally and locally approved elec-
tricial codes when installing and operating this equipment. Failure to do so can
result in equipment damage.
Phone E-mail Web Site
01844 201142 (Option 2) UK.T[email protected] AvidityScience.com
Phone E-mail Web Site
800 558 5913 US.T[email protected] AvidityScience.com
Phone E-mail Web Site
(86) 189 1852 9537 CN.T[email protected] AvidityScience.com

Puro Range Water Purification System Operation Manual Avidity Science, LLC
vi Important Safety and Service Information
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Avidity Science, LLC Puro Range Water Purification System Operation Manual
Introduction 1
Introduction
The Puro water purification system produces Type 3 water (1 to 40 µS) at a rate of 10, 20, 50 or 80 litres
per hour. Type 3 water is stored in an external storage tank where it can be dispensed when required, or be
connected to a distribution system.
All components are assembled around a reservoir chassis and are protected by a plastic housing designed
for bench or wall-mounting. The plastic covers can be removed for access to replaceable components.
All recorded data, warning messages, and dispensing information can be viewed from the controller dis-
play.
Puro Water Purification Models
The content in this manual applies to these models.
Purification Process
In normal operation, feed water enters the system via the inlet solenoid valve (V3), engaging the Reverse
Osmosis Pump (P1). The conductivity of the feed water is measured by the feed water conductivity
sensor (Q1) before it reaches the pump.
Table 1. Puro Models
Model
Product Water
Quality
Product Water Flow
Rate
PURO10
Type 3
10 litres/hour
[2.6 gal /hour]
PURO20 20 litres/hour
[5.3 gal/hour]
PURO50 50 litres/hour
[13.2 gal/hour]
PURO80 80 litres/hour
[21 gal/hour]

Puro Range Water Purification System Operation Manual Avidity Science, LLC
2Introduction
The untreated water is pumped through the carbon-based, Pre-treatment Module (TC001) to trap larger
particles that are greater than 20 micron, as well as chemicals such as insecticides, pesticides, herbicides,
and chlorides. The pre-treatment module is essential to protecting the RO membranes and must be
replaced at the stated intervals to retain the integrity of the RO membranes as effectively and efficiently as
possible.
The water then passes through one or more RO membranes (TC006/TC013/TC026). The RO mem-
brane rejects almost all bacteria, viruses, heavy metal compounds and organics, as well as removing 98 per-
cent of the salt content from the water. A percentage of the rejected water, referred to as the concentrate, is
sent to the drain through a Flow Restrictor (R1), while the remaining water re-enters the system to pass
through the RO membrane again, conserving water.
The product water, referred to as permeate, is measured through the Permeate Conductivity
Sensor (Q2) as it leaves the membrane. When the water quality measure is within the set limits, the Per-
meate Solenoid Valve (V4) is opened and the permeate water is fed into a Storage Tank (TANK) where
it is held as Type 3 water. As another option, the water can be dispensed to a distribution system or other
equipment using Type 3 water.
Should the water quality measure outside of the set limits, the system will display a warning for the user to
recycle or flush the water to drain.
Table 2. Purification Process component descriptions
Component Description Component Description
V3 Inlet Solenoid Valve TC026 RO Module (membrane) PURO80
Q1 Feed Water Conductivity Sensor R1 Flow Restrictor
P1 RO Pump Q2 Permeate Water Conductivity Sensor
TC001 Pre-Treatment Module V4 Permeate Water Solenoid Valve
TC006 RO Module (membrane) PURO50 TANK Storage Tank (30 litre, 60 litre, or 100 litre
TC013 RO Module (membrane) PURO10, PURO20
V3
P1Q1
TC001
TC006/TC013/TC026
R1
Q2
V4
TAN K

Avidity Science, LLC Puro Range Water Purification System Operation Manual
Introduction 3
Primary Operation Menus and Sub-menus
(red)
Access Main menu. View Active Alarms
Main Menu
Password
Required
External Storage Tank
is Filling (optional)
Access information
related to the displayed
screen.
(green)
Turn off the unit. Access Main Menu
Access Technician
settings.
Password required.
Change the current
language Sleep mode.

Puro Range Water Purification System Operation Manual Avidity Science, LLC
4Introduction
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Avidity Science, LLC Puro Range Water Purification System Operation Manual
Operation 5
Operation
User Settings
NOTE: A passcode is required to access the user settings
This is the User Settings screen.
RO Quality Limit. Set the required water quality of the Type 3 water
Tank Full Limit. Set the Full water level for the external storage tank (if applicable)
System Settings
Can only be accessed by qualified technician with a passcode.
Consumable Timers
Displays the number of hours since the Pretreatment Module TC001 was installed.

Puro Range Water Purification System Operation Manual Avidity Science, LLC
6Operation
Alarms (Warnings)
Displays active alarms. Alarms will automatically display as they occur. Touch the alarm name to display
details.
Below is a sample alarm screen.
Touch to acknowledge the alarm. The alarm will stay in the list until the associated issue has been
fixed.
Change Language
Follow this procedure.
1. On or touch , then on , touch
2. Touch the desired language and touch .

Avidity Science, LLC Puro Range Water Purification System Operation Manual
Operation 7
Configure User Settings
Follow this procedure.
1. On or touch , then on , touch
2. Enter the required passcode and touch
3. Touch the applicable setting and touch .
4. Touch or until the desired value is displayed.
5. Touch
6. Touch to return to the User Settings screen.
7. Repeat steps 3 through 6 until the applicable user settings are configured.
8. Touch to return to the Main menu screen.

Puro Range Water Purification System Operation Manual Avidity Science, LLC
8Operation
Warnings Messages
Below is a list of warning messages and solutions.
Description Error
Number Solution
Water leak (system shuts down)
60
Fix the leak. Dry the leak sensor located on the bottom of
the cabinet.
Contact Technical Support as necessary.
Permeate (when RO pump is ON) 40 Contact Technical Support.
Loop Temperature 43 Follow on-screen instructions.
Tank Empty 50 Follow on-screen instructions.
Ta nk L o w 51 Follow on-screen instructions.
Permeate Sensor Fault: LOW 64 Follow on-screen instructions.
Loop Conductivity Sensor Fault 63 Follow on-screen instructions.
Temperature Sensor: HIGH 64 Allow system to flush.
Temperature Sensor: LOW 65 Check incoming water temperature.
Level Sensor Fault: HIGH 67 Contact Technical Support.
Level Sensor Fault: LOW 68 Contact Technical Support.
Tank UV Lamp Run Time Expired 5Contact Technical Support
Pretreatment Module TC001 time expired 1Replace.
Inlet Conductivity: HIGH 24 Check conductivity in Feed Water.
Pressure Sensor Fault: HIGH 69 Contact Technical Support.
Pressure Sensor Fault: LOW 70 Contact Technical Support.
Pressure: HIGH 71 Follow on-screen instructions.
Contact Technical Support.

Avidity Science, LLC Puro Range Water Purification System Operation Manual
Routine Maintenance 9
Routine Maintenance
Below is a schedule of routine maintenance intervals required to keep the Puro Water Purification System
operating.
Replace Pre-Treatment Module
The pre-treatment module should be replaced every 3 to 6 months depending on the quality of the supply
water. The module is located behind the front panel of the RO machine. You will need Pre-Treatment
Module TC001.
Follow this procedure.
1. Lift the left front panel and remove.
2. On , select .
3. Enter the User passcode and touch
4. On , touch TC001 Change and touch . The pre-treatment module depressurizes.
NOTE: Use or as necessary to make the selection.
5. When Disconnect TC001 and remove is displayed, remove the module from it’s brackets and
disconnect the elbow fitting at each end.
Table 3. Schedule of Routine Maintenance
M aintenance Required Frequency
Preventive maintenance by an Authorized Technician 6 months
Replace Pre-treatment Module 6 monthsa
a. Recommended frequency depends on usage and applies to the stated model only, without modification.
Replace UV Lamp in Storage Tank 12 months by an Authorized Technician
Replace Air Filter on Storage Tank 12 months
Replace RO membranes On recommendation of an Authorized Technician

Puro Range Water Purification System Operation Manual Avidity Science, LLC
10 Routine Maintenance
6. Place the module to the side for proper disposal.
7. On the control screen, touch
8. When Install new module is displayed, position the new module with the printed arrows pointing
up.
9. Connect the applicable elbow fitting to each end of the module as shown below.
10.Secure the module to the two brackets.
11.Replace the left front panel.
12.On the control screen, touch . The module is flushed of anti-freeze.
13.When Maintenance complete is displayed, touch .
14.Touch until appears.
15.Dispose of the used module following local environmental disposal guideline.

Avidity Science, LLC Puro Range Water Purification System Operation Manual
Routine Maintenance 11
Change the RO Membranes
Follow this procedure to change RO membranes.
IMPORTANT: To change the membranes the RO machine must first be removed from the system water flow.
1. Disconnect power to the Puro unit.
2.If the Puro is mounted to the wall, with the assistance of another person, remove the RO machine from
it’s mounting bracket and place the unit on a table.
3.Remove the screws that secure the rear panel and remove the panel.
4.Disconnect the tube fitting from the screw cap at the top of each membrane housing by depressing
the push fitting collars.
5.Remove the threaded screw caps from the RO membrane housing.
6.Remove the RO membrane module from the housing.
7.Insert a new membrane module into the RO membrane housing.
8.Secure the threaded screw caps to the RO membrane housing.
9. Reconnect the tube fitting to the applicable membrane housing.
10.Replace the rear panel and secure the previously removed fittings.
11.If applicable, mount the RO machine to it’s mounting bracket.
12.Reconnect power to the Puro unit and rinse permeate water to drain 2 hours before use.
13. Dispose of the used membranes following your site requirements for disposal.
CAUTION! Personal injury. Use two people to mount the RO machine to the
bracket on the frame. The RO machine weighs approximately 55 lbs [25 kg].
One person is not enough to stabilize and mount the unit. Failure to do so can
result in personal injury and equipment damage.

Puro Range Water Purification System Operation Manual Avidity Science, LLC
12 Routine Maintenance
Replace Air Filter on External Storage Tank
All tanks use air filter (TC005). The air filter connects to the top of the storage tank.
Follow this procedure.
1. Remove the new air filter from its packaging.
2. Pull the existing filter off the top of the tank.
3. Turn the new filter so the flange-end faces down toward the filter-connection tube as shown
below.
4. Place the filter over the tube on the tank. and press down.