Bio-Tek Bio3Sure WDS Mini User manual

INSTALLATION & OPERATION MANUAL
BIOTEK ENVIRONMENTAL SCIENCE LTD.
www.besgroups.com
Model EOS7211-H
WATER DISINFECTION SYSTEM
WDS Mini

1
PREFACE
COPYRIGHT
© 2023 Biotek Environmental Science Ltd (BES Group) All Rights Reserved.
Reproduction, adaptation, or translation without prior written permission is
prohibited, except as allowed under the copyright laws.
BioSure Professional is a division of Biotek Environmental Science Ltd. ("BES
Group"). BES Group is a global leading electrolytic technology developer and
product manufacturer with pioneering ozone application knowledge and currently
holds many exclusive patents for its electrolytic ozone generators and products
worldwide.
The information contained in this document is subject to change without notice.
BES Group shall not be liable for any direct, indirect, incidental, consequential, or
other damage alleged in connection with the furnishing or use of this information. BES
Group is not liable for damages on any contact materials due to result of oxidation.
BES Group makes no warranty of any kind with respect to this information. BES Group
SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE.
DISCLAIMER
This manual contains important information of BioSure Professional WDS Mini
(Model: EOS7211-H). Only the correct operation and maintenance of this
equipment can make your system perform its best. Be sure to understand the
correct installation, operation and maintenance methods before using this
equipment.
This manual contains important safety information, basic installation, operation,
and maintenance instructions. Please read this manual carefully to optimize your
application. For additional guidance, consult Biotek Environmental Science
Ltd. (BES Group) Customer Service or your BioSure Professional local
authorized dealer.
VERSION: 2023.05

2
TABLE OF CONTENTS
PREFACE
PACKAGING CONTENTS
IMPORTANT SAFETY INFORMATION
1. PRODUCT INFORMATION
1
3
4
1.1 PRODUCT DESCRIPTION 7
12
21
23
24
16
1.2 PRODUCT FEATURES 7
1.3 KEY COMPONENTS
2. INSTALLATION
2.1 PRECAUTIONS BEFORE INSTALLATION
2.2 INSTALLING THE UNIT
3. OPERATION
3.1 CONTROL KEYS & INDICATORS
3.2 STARTING YOUR WDS Mini
4. MAINTENANCE
5. TROUBLESHOOTING
WARRANTY INFORMATION
4.1 REPLACEMENT CYCLE OF EOG CELL
4.2 CELL CARTRIDGE REPLACEMENT
4.3 CELL CARTRIDGE CLEANING PROCEDURE
8
18
22
1.4 SPECIFICATIONS 10
27
11
EOS7211_H_V101_EN

3
PACKAGING CONTENTS
Main Device
In order to ensure that the products can be delivered to consumers completely,
BES Group will confirm the integrity of accessories and packaging through
quality control before the products are sold. After you receive the product, please
check whether there are any packaging defects, cracks, joint damage, etc., to
confirm that there is no damage during transportation.
If you find any damage, please notify your freight forwarder and BES Group
immediately.
Power Supply
AC100-240V
Wire Length 1.5m
Wall-Mount Hex nuts (x1)
Phillips Screws (x2)
& Plastic Wall Anchors (x2)

4
IMPORTANT SAFETY INFORMATION
To avoid personal injury or property damage to the user or others, please follow
the following safety instructions :
Explanation of Safety and Notice Symbols
Electrical Safety and Basic Safeguards
READ AND SAVE THESE STRUCTIONS
WARNING
Do NOT plug or unplug the Power Supply if your hands are wet. Doing so can
cause electric shock or injury.
Do NOT use the product if the power connector is loose or damaged.
Keep the power supply away from heated or hot surfaces including space
heaters, stoves, and similar electrical appliances. ( > 100 cm)
All service work must be performed by a qualified and authorized technician.
NEVER attempt to disassemble, repair, or remodel the unit yourself. Doing
so will void your warranty and can lead to fire or electric shock. If the product
malfunctions or has been damaged in any manner, unplug the unit and
contact the BES Group service department or its authorized local service
agent or dealer to arrange service or repair.
‧
Do NOT damage the Power Supply. A damaged Power Supply can cause fire
or electric shock.
‧
‧
‧
‧
NOTICE
WARNING WARNING indicates a hazardous situation which, if not
avoided, COULD result in death or serious injury.
CAUTION CAUTION indicates a hazardous situation which, if not
avoided, COULD result in injury or property damage.
NOTICE is used to address practice that is required and
must be followed.

5
Stop using the product immediately if you notice any of the following
symptoms indicating abnormality or malfunction:
- The product is abnormally hot or deformed.
- Smoke coming from the product or there is burning smell.
- Some part of the product is cracked, loose, or unstable.
- The product makes strange noises.
- The display is abnormal.
‧
CAUTION
If any of the above issues occur, unplug the power immediately and return
to authorized agent or dealer for service and repair. Continued use of the
product may cause a fire, electric shock, or injury.
‧
NOTICE
Specic Safety Information
Before connecting the unit to power supply, ensure all plumbing connections
are secured and leak-free, from shut-off valve to outlet.
To maintain cosmetic integrity, protect this unit from direct prolonged sunlight
exposure.
Do not immerse the product in water or splash water on it, as this may cause
damage to the product.Choose a place to avoid rain or splash water when
installing.
‧
‧
‧
For your safety, DO NOT operate the device with any panels or covers
removed.
‧
The power cord of this product is 1.5m. Extension cord should only be
used if care is exercised.
‧
- Do not place the socket of the extension cord where it is easily splashed by
water.
- The extension cord should not be suspended from the countertop or
tabletop,otherwise it may cause tripping.

6
SAFETY INFORMATION OF OZONE
Ozone is categorized as “generally regarded as safe” (GRAS), and is approved
by the US Food and Drug Administration (FDA) for food service use as an
antimicrobial additive and a disinfectant for food contact surface. The Centers for
Disease Control and Prevention (CDC) has also supported that ozone is a safe
and effective sanitation method in drinking water, effective against even some of
the most resistant pathogens.
This device is designed to instantly transform tap water into ozone water, with
the amount of ozone well below typical safety limits and regulations when used
correctly. According the Occupational Safety and Health Administration (OSHA),
the concentration standard for continuous exposure to ozone is listed below:
The amount of ozone generated by this device is well below typical safety limits
and regulations when installed, operated, and maintained correctly. Ozone
can be sensed by smell at a level as low as 0.002-0.003ppm. It is normal and
expected to be able to detect a mild ozone smell from the ice storage bin.
Long term exposure limit 8 Hours 0.10 ppm
Mid term exposure limit 2 Hours 0.20 ppm
Short term exposure limit 15 Minutes 0.30 ppm

7
1PRODUCT INFORMATION
1.1 PRODUCT DESCRIPTION
The WDS Mini unit is a simple and easy solution to reduce bacteria and prevent
the growth of mold, slime, biofilm, and other bacterial contamination in commercial
ice machines. The system applies a revolutionary advanced electrolytic ozone
technology, which features on-demand contribution of reliable sanitizing benefits of
dissolved ozone in effective and safe manners.
FOUR FUNCTION MODES FOR DIFFERENT TYPES OF ICE MAKER
Mode 1
Basic Flow-Controlled Mode, designed for versatile applications in any
flexible setting. In this basic mode, the primary function is to be activated
by water flow and automatically deactivate when the flow stops.
Mode 2
Flow-Controlled Mode Combined with Delayed Timer Operation,
specifically designed and recommended for batch-type ice makers. Batch-
type ice makers, such as cuber ice machines that utilize a solenoid valve to
control the water intake for ice-making, can benefit from this mode.
Mode 3
Automatic Timer Mode, specifically designed and recommended for
continuous-type ice makers. Continuous-type ice makers, such as cuber or
flaker ice machines that utilize a float to control the continuous water intake
for ice-making, can benefit from this mode.
Mode 4
Flow-Controlled Mode Combined with Extended Operation, specifically
designed and recommended for ice and water dispenser systems that
have a low water intake rate during the icemaking process.
‧
1.2 PRODUCT FEATURES
-
ALARM WARNING
‧
When the efficiency of EOG cell decrease, the recommended replacement
cycle of the EOG is due, or the system runs abnormally, the unit will alarms
with lights.
* Please refer to Chapter 3 and Chapter 5 for more details.
SCALE PREVENTING
‧
Our electrolytic ozone generator incorporates a scale-preventing feature that
automatically operates polarity reversal to prevent mineral buildup on the
electrodes, ensuring optimal ozone generation performance.
-
-
-

8
1.3 KEY COMPONENTS
1. Power Cord and Power Socket
2. Programming Port
3. EOG Status Indicator
Side View
5. Serial Number
4. Electrolytic Ozone Generator (EOG) Cell Cartridge
1
2
3
4
5

9
1. Control Button - Mode
2. Control Button - Reset
3. Status Indicator
Top View
1. Water Inlet
2. Water Outlet
3. EOG Serial Number Sticker
Bottom View
2
3
1
Commencing Date: / /
Electrolytic Ozone Cell
1 2
3
S/N: 11QA00001

10
1.4 SPECIFICATIONS
MODEL EOS7211-H
APPLICABLE ICE MAKER
(Daily ICE PRODUCTION) < 1800 lbs (General Environment)*1
OUTPUT Ozonated Water
OZONE PRODUCTION Approx. 120 mg/hr*2
CONNECTIONS
(INPUT/OUTPUT)
1/2”Movable Nut (Female) /
1/2”External Thread (Male)
DIMENSIONS Ф73 x W118 x H148 mm
WEIGHT (NET) 473 g
IP CLASS IP54
WATER
SUPPLY
Quality Clean or Filtered Water*3
Flow Up 1450LPH at 3 kg/cm2 with 1/2” tube*4
Pressure ≦7.0 kg/cm2(100 psi)
Optimal Temp. 5 - 40℃
POWER
Adaptor Input AC 100-240V, 50/60Hz
Adaptor
Output DC5-15V / 2.0A (Constant Current)
Rate 30W
AMBIENT TEMP. 5 - 40℃
AMBIENT RELATIVE HUMIDITY 0 - 90% R.H. non-condensing
*1. Compared to the General Environment, the Harsh Environment includes bakery
operations, bars, micro-breweries, and more. When configuring the unit in the Harsh
Environment, please apply the recommended specifications by BioSure Professional
distributors.
*2. Environment: 1 atm, 25℃; Water : filtered to 1µm, 20℃, TDS = 60 ppm. Actual
performance concentrations may vary from the listed data due to operating conditions
(water flow, pressure, temperature, and water quality).
*3. Recommended water quality：filtered ≦1µm, TDS > 60 ppm, Hardness < 250 ppm
(as CaCO3). Minimum TDS ≧30ppm is required for basic perfromance.
*4. Minimum ≧30LPH is required for activating the function mode 1, 2 and 4.

11
2INSTALLATION
2.1. PRECAUTIONS BEFORE INSTALLATION
Tools Needed for Installation:
‧Pipe wrench
‧Adjustable wrench
‧Plumber's Tape
‧Adjustable joints
(As needed)
Installation Precautions
1. For best results, clean and sanitize the water line before installing the unit.
This device is designed and engineered for easy integration into existing water
systems. Please check the device for damage or shortage before installation and
be sure you have the tools.
If any parts are damaged, contact your supplier IMMEDIATELY. Do NOT install
damaged parts.
‧Pipe Clamp
(As needed)
‧Electric Drill
2. Select a location for the unit so:
Mount the system after all water filtration processes.
‧
It will be in an upright position (You can use the wall mount attached to fix
the unit)
‧
Indicator lights and cartridge are visible and accessible.
‧
Allow sufficient access for cartridge replacement.
‧
Other equipment or objects should not lean on or press against the device.
‧
Be sure there is a power socket within 1.5m around the installation position.
‧
4. Ensure that adequate hammer arrestors is provided to comply with regional
standards and regulations.
It is highly recommended that a water shut-off valve be installed before and
near the unit.
3.
5. A bypass pipeline is recommended to keep the normal operation of the ice
maker during future maintenance.

12
2.2. INSTALLING THE UNIT
‧IMPORTANT INFORMATION
The diameter of water inlet and outlet is 1/2" (female inlet /male outlet).
Installation position of the equipment must be placed after the water filters.
A shut-off valve in front of the water inlet is recommended to facilitate future
maintenance or replacement of the EOG cell cartridge.
In case an adjustable joint is used, it's suggest to use plumber's tape and a
hose clamp to avoid water leakage. It's recommended to reserve the length of
the water pipe for moving or removing the device in the future - the inlet and
outlet connectors are designed as one male and one female, which can be
directly connected after the equipment is removed.
Typical Scheme of Installation
Water Flow Water Flow
Shut-Off Valve
By-Pass
Install a filter (filtered to ≤1μm) can improve
the Scale Preventing performance.

13
40 mm
6mm
‧MOUNTING THE UNIT
You can fix the device on the wall by a wall-mount (Attachment). Please follow
the previous section "Precautions before installation" to select an appropriate
location, and follow descriptions below to secure the device.
1
Water Flows form Left to Right Water Flows form Right to Left
22 Choose the way to x the wall-mount according to the direction of
water inow

14
Water Flow Water Flow
Shut-Off Valve
By-Pass
Turn on the water supply.
Test for leaks at each connect point.
4
3
Connect input water tube Connect output water tube

15
‧POWER ON YOUR WDS Mini
Connect the power adaptor plug with the power socket of the device. Ensure
all plumbing connections are secured and leak-free. Plug the power adaptor
into the wall electricity outlet to switch on the device.
Power Adaptor
Power Cord

16
3OPERATION
3.1 CONTROL KEYS & INDICATORS
RESET key
MODE key
Select Mode 1 to 4
(Refer to Sec. 3.2)
Mode Indicator
‧
Reset the Counter
(Refer to Sec. 4.2)
For abnormal status indications, please refer to troubleshooting in Section 5
(page 24).
MODE 1
STEADY BLUE
Basic Flow - Controlled Mod
MODE 3
BLINKING WHITE
Automatic Timer Mode
MODE 2
STEADY WHITE
Flow - Controlled Mode Combined
with Delayed Timer Operation
MODE 4
BLINKING BLUE
Flow - Controlled Mode Combined
with Extended Operation

17
EOG Status Indicator
‧
For abnormal status indications, please refer to troubleshooting in Section 5
(page 24).
Slow Blue Blinking
System self-checking in the initial 30 sec
of start-up.
Dark
- Stand-By in normal condition
Steady Blue ON
Product function is successfully
triggered by an effective water flow.
(or by timer if for the mode 3 is selected)

18
SELECT MODE
The default setting is Mode 1, the "Basic Flow-
Controlled Mode." To switch modes, press and
hold the "MODE" key (Left key) for 3 seconds.
Repeat the 3-second long press to cycle through
the four available modes.
A successful mode switch is indicated by a beep
sound, confirming that the settings have been
saved. The last saved settings will be retained
and applied upon power restart. Please refer to
sec. 3.1 for a detailed explanation of the lighting
indications in various modes.
* Each time the power is restarted, the system maintains the
previous mode settings.
* Control keys won't function when the EOG cell is working.
3.2 START YOUR WDS Mini
IMPORTANT! Operating the device under no water or low water level will
activate an alarm.
There is no ON/OFF control switch with the unit. The unit is switched ON
by connecting the power supply cord into a wall electrical outlet (power
supply). All water pipeline connections should be completed before the
device powered on. After the unit is powered on, the buzzer will beep once,
a 30-second system self-check will be performed. During this period, the
control buttons cannot be operated. After 30 seconds, the system enters
standby mode, user can operate control buttons at this time.
‧
Beep
After each powered on, the device will perform a self-
check for 30 seconds and the EOG status indicator
will blinks slowly in blue. Control keys cannot be
operated at this time.
SYSTEM SELF-CHECK
‧
Beep