Pure Water Technology PW70 User manual

Quench USA Inc.
630 Allendale Road, Ste 200
King of Prussia, PA 19406
[phone] www.purewatertech.com
PW70
MANUAL

PW70 Manual Page 2 - Revision: 8-17-2023
PW70 MANUAL
Congratulations on your choice of the Pure Water Technology PW70 Water Dispenser. The
PW70 model dispenses highly filtered hot and cold water. The Pure Water Technology PW70
Water Dispenser provides exceptional quality and great tasting water with every use.
INTRODUCTION
Carefully read and follow all instructions to ensure proper and efficient operation of your Pure
Water Technology Water Dispenser. Contact your Authorized Pure Water Technology Dealer if
you have any questions.
Pure Water Technology and Authorized Pure Water Technology Dealers employ trained
service personnel who are experienced in the installation, function, and repair of this
equipment. This publication is written for use by these qualified individuals. Pure Water
Technology encourages users to learn about products, however, we believe that product
knowledge and service is best obtained by consulting your Authorized Pure Water Technology
Dealer.
Pure Water Technology Water Dispensers should be combined with selected water treatment
components to create a system specifically tailored for each application by trained and qualified
personnel.
Products manufactured and marketed by Pure Water Technology and its affiliates are
protected by patents issued or pending in the United States and other countries.
Pure Water Technology reserves the right to change the specifications referred to in this
literature at any time, without prior notice. Changes or modifications not expressly approved by
Pure Water Technology could void the warranty and user’s authority to operate the
equipment.

PW70 Manual Page 3 - Revision: 8-17-2023
TABLE OF CONTENTS
USER GUIDE
•Safety Alert Symbols ................................................................4
•Safety Precautions ...................................................................4
•Features and Benefits ..............................................................6
•Certifications............................................................................7
•Model Designations, Consumables, & General Specs .............8
•Shipping Specifications ............................................................9
•Receiving Your Equipment.....................................................10
•Control Panel & Operating Instructions.................................11
•Warranty ...............................................................................12
SERVICE GUIDE
•Service Requirements ............................................................13
•PW70 Parts Diagram……………………........................................14
•Flow Diagram .........................................................................16
•Electrical Diagram ..................................................................17
INSTALLATION GUIDE
•Pre-Installation Procedures ...................................................18
•Notes on Installation..............................................................19
•Filter Flushing Procedure.......................................................20
•Installation .............................................................................23
•PM Guide ...............................................................................26
•Dipswitch Settings..................................................................28
•Final Inspection......................................................................29
MAINTENANCE
•Preventative Maintenance ....................................................30
•System Inspection..................................................................31
•Warranty Procedure ..............................................................31
TROUBLESHOOTING
•Error Signals ...........................................................................32
•Troubleshooting Guide ..........................................................33

PW70 Manual Page 4 - Revision: 8-17-2023
SAFETY ALERT SYMBOLS
Read and follow all safety information carefully. The signal words used in this manual are
selected as shown below and based on an assessment of the degree of potential injury or
damage (severe or minor) and the occurrence of injury (occurs or has the potential to occur)
when the warning is ignored:
DANGER!
Indicates a situation which, when not avoided, results in death or severe injury.
WARNING!
Indicates a situation which, when not avoided, has the potential to result in death or
severe injury; and/or severe property damage.
CAUTION!
Indicates a situation which, when not avoided, results in or has the potential to result
in minor injury; and/or minor property damage.
SAFETY PRECAUTIONS
Basic safety precautions should be followed, including the following:
Ensure all Local, State, and Federal Laws and Codes including health and safety guidelines are
met when installing Pure Water Technology Equipment. Only qualified service technicians
should attempt installation and service of Pure Water Technology Equipment. Always read the
entire operating instructions before using the appliance and save these instructions for future
use.
DANGER! This product can cause death or severe injury if incorrectly operated, installed or
maintained. The installation, maintenance, sanitizing and any repair must be performed by
qualified persons trained by Pure Water Technology International or their approved
distributors only. Do not remove any panel or cover to protect against electrical shock and
exposure to UV radiation.
DANGER! ELECTRICAL SHOCK HAZARD. Always use a dedicated and properly grounded
outlet. Unit should be protected by ground-fault circuit interrupter (GFCI) or residual current
device (RCD) having a rated residual operating current not exceeding 30mA. Use only Pure
Water Technology supplied power cord. Never use extension cords or power strips to connect
unit. Do not use if the power supply cord is damaged. Always unplug from power supply prior
to servicing.
WARNING! AUTHORIZED USE ONLY. This appliance is to be used for its intended purpose as
described in this manual. Untrained individuals who use this manual assume the risk of any
resulting property damage or personal injury. This appliance can’t be used by children and
persons with reduced physical, sensory, or mental capabilities or lack of experience.
WARNING! DO NOT OPERATE IF DAMAGED. Unplug and isolate water supply if abnormal
conditions exist. Contact Pure Water Technology or authorized dealer for repair, service, and
installation to avoid hazards.
WARNING! HOT WATER. Unit produces Hot Water in excess of 80oC (175oF). Water above
52oC (125oF) can cause severe burns or scalding. Keep unauthorized people and children
away from the unit to avoid accidental dispensing of hot water.

PW70 Manual Page 5 - Revision: 8-17-2023
WARNING! CONNECT TO POTABLE WATER SUPPLY. This system is to be used for water only
and is NOT intended for use where water is microbiologically unsafe or with water of
unknown quality without adequate disinfection before or after the system.
WARNING! TIP HAZARD. Dispenser could tip or fall causing serious injury if installed with a
base. Always install unit on a firm, flat, and level surface and secure unit to cabinet, wall, or
floor if needed and secure to the base, if applicable. Never place heavy items on top of unit
and never climb, stand, or hang on unit or storage cabinet to prevent injury and damage.
WARNING! UNIT IS HEAVY. TWO PERSON LIFT REQUIRED. Transport unit empty and always
use material handling equipment or two people with proper lifting technique to reduce injury
risk.
WARNING! STORE AND TRANSPORT UNIT EMPTY. ALWAYS SANITIZE BEFORE USE.
The unit must be completely drained before storing to avoid stagnation and reduce
microbiological contamination (potential bacterial growth). Always sanitize before use to
eliminate any potential microbiological contaminates.
CAUTION! INDOOR USE ONLY. Intended for Household Use. Never expose to direct
sunlight, heat sources, or ambient air temperature above 37°C (100°F) or below 2°C (35°F).
Install indoors and keep unit away from excessive humidity or rain. Never expose to freezing
temperatures. Ensure there is adequate clearance around the unit to allow refrigeration
system condenser to dissipate heat. Warmer environments require more clearance around
the unit. Minimum clearance around all surfaces of the machine is 2-inches. Installs where
the ambient temperature exceeds 27°C (80°F), require a minimum of 4-inches clearance for
proper heat dissipation and efficient operation.
CAUTION! USE A WATER PRESSURE REGULATOR. Pure Water Technology will not be
responsible for injury or damage caused by excessive water pressure. Input or feed pressure
must be 40 psi to 80 psi. Be aware of any potential pressure surges caused by
building/municipal pumping stations. Failure to comply will void all warranties. The
manufacturer accepts no liability for damage caused by excessive water pressure.
CAUTION! USE UV STABILIZED SUPPLY LINES. Feed the unit with a potable ambient or
cold-water supply only. Feed water over 37°C (100°F) can damage the treatment
components. Water block devices and external leak detectors are strongly recommended.
Locate the unit as close to the water supply and the electrical connections as possible.
Immediately isolate or close water supply valve and contact service representative if leak is
noticed.
WARNING! SECURE CO2 SUPPLY BOTTLE. When connecting a CO2 tank to the system,
please ensure that the CO2 tank is securely fastened to avoid falling. Failure to secure tank
can result in property damage and/or bodily harm.
WARNING! REFRIGERANT SYSTEM. This system is manufactured with 134A refrigerant.
Repairs to the refrigeration system must be performed by a certified refrigeration technician
only.
CAUTION! DO NOT PLACE HEAVY ITEM OR WATER CONTAINER ON TOP OF UNIT. Water
may leak into the electrical system causing a fire hazard. Heavy items may fall off causing
injury.
Contact Pure Water Technology for assistance or help finding an Authorized Service
Representative.

PW70 Manual Page 6 - Revision: 8-17-2023
PW70 FEATURES AND BENEFITS
Hot and Cold Water
The PW70 Water Dispenser comes standard with Hot and Cold to meet customer demands.
Water Capacity and Production
The PW70 Water Dispenser holds 0.5 gallons (1.9L) of Hot Water and 1.8 gallons (6.9L) of Cold
Water.
Large Dispense Area with Recessed Faucet
11.5-inch dispense height with recessed faucet to protect from cross-contamination.
Leak Prevention
PW70 Water Dispensers are supplied with a leak stop device to cut off the water supply in the
case of a water leak or overfill AND a leak detection sensor to alert the user in this event.
Touch Sensor Dispensing
Touch Sensors are used to activate select and dispensing functions.
Drip Tray with Drain Connection
Unit comes with a high-capacity Drip Tray with an optional drain connection.
RO Water Filtration
The Pure Water Technology PW70 uses a multi-stage RO filtration configuration for great
tasting water.
Anti-Microbial Surfaces
The Pure Water Technology PW70s control panel is made of material with anti-microbial
additives to maintain cleanliness.
Activated Oxygen Self-Cleaning
The Pure Water Technology PW70 uses advanced technology to circulate ozone gas (O3)
through the water tanks and lines to keep them clean and maintain freshness.

PW70 Manual Page 7 - Revision: 8-17-2023
CERTIFICATIONS
PW70 Water Dispensers have been tested and certified to rigorous NSF and UL Standards. We
believe that performance testing and certifications validate Pure Water Technology as a world-
leader in Water Dispensers.
Pure Water Technology PW70 Component Certifications Include:
UL399 –Certified Drinking Water Cooler
Intertek Labs (ETL) Certified the PW70 Water Dispenser to ANSI/UL 399 Standard
for Drinking Water Coolers.
CSA C22.2 No. 120 CSA Standard for Refrigeration Equipment
NSF / ANSI 372 –Drinking Water System Components –Lead Content
Drinking Water System Components for low Lead Content.

PW70 Manual Page 8 - Revision: 8-17-2023
MODEL/PART DESIGNATIONS
BRAND NAME
DESCRIPTION
MODEL -
PART NUMBER
PW70
PW70 –Hot & Cold Tower
PW70
70P(YYWW)A(#####) ex: 70P2233A00005
CONSUMABLES
FILTER
REPLACEMENT FREQUENCY
PART NUMBER
SEDIMENT FILTER
6-12 MONTHS
EN1100-0001
POST-CARBON FILTER
6-12 MONTHS
EN1100-0007
RO MEMBRANE
TEST TDS REDUCTION AT 12 MONTHS
EN1100-0004
PRE-CARBON FILTER
6-12 MONTHS
EN1100-0002
BOOST FILTER (OPTIONAL)
6-12 MONTHS
EN1100-0011
AIR FILTER
3 YEARS
FE0049A
SPECIFICATIONS
ITEM
PW70
Water Connection
¼” Quick Connect
Recommended Service
Water Pressure
60-70psi (4.2-4.9kgf/cm2)
Rate Voltage
AC 120V/60Hz or 220V/50Hz
Power Consumption
1.0A (120W) Cold Water; 2.5A (300W) Hot Water; 3.5Amps Total
Power Cord
1.9m (6.3ft)
IP Class
IPX1
Climate Class
N Class (32°C +/- 1°C) (89.6°F +/- 33.8°F)
Safety Device
Overheating protector. Water Leak Detection. Leak Stop Device. Fuse.
Hot Tank Capacity
0.5gal (1.9L)
Cold Tank Capacity
1.8gal (6.9L)
Environmental Temperature
Max: 90°F (32°C) Min: 35°F (2°C)
Source Water Temperature
Max: 90°F (32.2°C) Min: 40°F(4.5°C)
Relative Humidity
55% at 78°F(25.5°C)
Refrigerant Gas
R134a (1.34oz +/-0.03oz)
R134a Pressures
250psi (17.2bar) High Side, 88psi (6.1bar) Low Side

PW70 Manual Page 9 - Revision: 8-17-2023
SHIPPING SPECIFICATIONS
ITEM
PW70
Width/Depth/Height
330mm W x 437mm D x 1241mm H
12.99”W x 17.2”D x 48.84”H
Weight (dry)
55lbs (25 kg)
12.99”
48.84”
17.2”

PW70 Manual Page 10 - Revision: 8-17-2023
RECEIVING YOUR EQUIPMENT
Upon receipt of your equipment, you should check the following:
1. Are the systems still on the pallet?
2. Confirm the number of boxes you are signing for.
3. Is there any obvious damage to the product or the boxes?
If there are any discrepancies or any obvious damage to the equipment or boxes, please note it
on the “Bill of Lading” and/or refuse the shipment.
After receiving the equipment from the carrier, remove packaging and inspect for any hidden
freight damage. If freight damage has occurred, call the freight company and customer service
[phone] to report the damage. Photograph all damages to be submitted with the claim.
THIS MUST BE DONE WITHIN FIVE BUSINESS DAYS OF DELIVERY. If not reported within 3
business days, Pure Water Technology and/or carrier will not be responsible for replacement or
repair.

PW70 Manual Page 11 - Revision: 8-17-2023
CONTROL PANEL & OPERATING INSTRUCTIONS
•Self-Cleaning Enabled: This light indicates the units
Ozone cleaning mode is activated.
•Filtration Active: This light indicates the filters are
not exhausted and working as intended.
•Change Filters Soon: This light indicates the preset
filter timer has run out and it is time to change the
filters inside the unit.
•Service Needed: Indicates the unit needs service
and will blink if there is an internal leak.
•Hot Select: This touch sensor is used to select the
hot water option.
•Water Dispense: This touch sensor is used to
dispense the selected water temperature (default is
cold water). The Icons to the left of the sensor will
illuminate the currently selected temperature.

PW70 Manual Page 12 - Revision: 8-17-2023
PWT MANUFACTURED WATER DISPENSER LIMITED WARRANTY
The PWT PW70 is covered by the PWT Warranty for a period of 5 years from the date of purchase
against manufacturer defects given the filtration is changed with PWT branded filters on the
recommended schedule.
General Provision and Exclusions:
This warranty only applies in the fifty (50) United States and Canada. This warranty does not apply,
and no agreement, whether written or implied, shall be applicable if the affixed serial number is
removed, defaced, or obliterated. This warranty does not apply to the filters after exposure to
water. Refer to service manual for filter requirements and expected performance. This warranty
does not apply if parts used as original or replacement equipment, including filters, are not
obtained, or authorized through PURE WATER TECHNOLOGY, and such unauthorized usage shall
void this warranty. This warranty does not apply to any wetted parts that become inoperative due
to lime, scale, or other water quality conditions. This warranty does not apply to any machine or
components that become inoperable due to a failure by Dealer/Distributor or the end-user to
satisfy standards or regulations adopted by any governmental agency. This warranty does not cover
performance, failure or damages of any part resulting from external causes such as alterations,
abuse, misuse, misapplication, neglect, accident, installation, operation contrary to printed
material, corrosion or acts of God.
This warranty only applies to the operative components of the machine and does not apply to the
exterior shell or frame to which the shell is attached and the appearance of the machine.
This warranty and any applicable industry certifications for this machine are automatically voided if
the machine is altered, modified, or combined with any other machine, equipment, or device.
Alteration or modification of the machine may cause serious flooding and/or hazardous electrical
shock or fire Except as set forth herein, PURE WATER TECHNOLOGY makes no other warranty,
guarantee or agreement expressed, implied or statutory, including any implied of merchantability
or fitness for a particular purpose.
The foregoing is in lieu of all other agreements expired or statutory and all other obligations or
liabilities of PURE WATER TECHNOLOGY. PURE WATER TECHNOLOGY does not assume or authorize
any person to assume any obligations of liability in connection with this product. In no event will
PURE WATER TECHNOLOGY be liable for special, incidental, consequential, or punitive damages, or
for any delay in the performance of this warranty agreement due to causes beyond its control.
Export Warranty:
The PURE WATER TECHNOLOGY export warranty shall apply to all area outside of the Continental
limits of the United States and Canada. The export warranty shall mirror the domestic warranty set
forth above in all respects except that a) the export warranty shall be limited to the Initial Term and
there is no coverage for the additional warranty through the first year and b) the Dealer/Distributor
shall be responsible for all transportation charges to implement the repairs.
ALL WARRANTY REPAIRS SUBJECT TO PRIOR APPROVAL BY PURE WATER TECHNOLOGYS SERVICE
DEPARTMENT IN ORDER TO VALIDATE THAT THE DEFECTIVE COMPONENT IS STILL UNDER
WARRANTY.

PW70 Manual Page 13 - Revision: 8-17-2023
SERVICE REQUIREMENTS
WARNING! Read and understand the contents of this manual before attempting to
service the PW70 Water Dispenser. Failure to follow the instructions in this manual
could result in death, serious personal injury, or severe property damage. Only trained
and qualified technicians should attempt to install, maintain, or service Pure Water
Technology Equipment.
1. Visually inspect all electrical and water connections for signs of wear or damage.
DANGER! HIGH VOLTAGE ELECTRICAL HAZARD. Unplug before inspection and service.
WARNING! ULTRAVIOLET RADIATION. Protect your skin and eyes against ultraviolet
rays. Never look directly at an operating UV light. Disconnect before removing UV Lamp.
CAUTION! UV LIGHTS ARE HAZARDOUS. Lamps are considered Hazardous Waste and
must be disposed of accordingly. Refer to Product MSDS sheet for details.
2. Ensure there is adequate (minimum of 5”) clearance around the PW70 Water Dispenser
and clean the condenser grill to provide efficient cooling system operation.
3. Sanitize the unit per instructions in the sanitization procedures.
WARNING! SANITIZER MAY CONTAIN HAZARDOUS CHEMICALS. Use of proper personal
protective equipment such as rubber gloves and eye protection are required.
4. Clean and sanitize external surfaces of the PW70 Water Dispenser. Use soap and water or
chemicals that are compatible with ABS plastic and will not damage or degrade the product
surfaces.
5. Remove and clean the Faucet. Replace as needed.
6. Flush in filters per instructions, and change filters on predetermined schedule, commonly
every 12 months for standard filters.

PW70 Manual Page 14 - Revision: 8-17-2023
PW70 PARTS DIAGRAM
Ex: [PART NUMBER] DESCRIPTION

PW70 Manual Page 15 - Revision: 8-17-2023

PW70 Manual Page 16 - Revision: 8-17-2023
PW70 WATER FLOW DIAGRAM (RO CONFIG)

PW70 Manual Page 17 - Revision: 8-17-2023
PW70 ELECTRICAL DIAGRAM
DANGER! HIGH VOLTAGE ELECTRICAL HAZARD. PCB (Printed Circuit Board) contains
High Voltage. Only trained and qualified technicians should attempt live testing.

PW70 Manual Page 18 - Revision: 8-17-2023
PRE-INSTALLATION
DANGER! ELECTRICAL SHOCK HAZARD.
Only qualified personnel who have read and understand this entire manual should
attempt to install, or service this PW70 Water Dispenser, failure to do so could result in
death or serious injury. DO NOT plug into an electrical supply until specifically instructed.
WARNING! ALWAYS SANITIZE BEFORE USE.
Sanitize before use to eliminate any potential microbiological contaminates.
Materials Needed:
•Personal Protective Equipment. Rubber or Nitrile Safety Gloves and Protective Eyewear
•Phillips Screwdriver
•Temperature Gauge
•Water Pitcher or Container to collect water from the faucet
•5-gallon container or drain basin
•Sanitizer - Household Bleach (5.25% Sodium Hypochlorite) or Citric Acid Based Cleaner
•¼” Plastic Tubing, at least 10 feet in length, and assorted ¼” quick connect fittings
•TDS Meter and Test Strips for measuring chlorine –Optional
1. Unpack the Pure Water Technology PW70 Water Dispenser and check exterior for damage.
CAUTION! FILTER FLUSH REQUIRED.
PW70’s Water Dispensers are supplied with filters. The frequency of filter changes depends
upon your water quality and your water usage. For example, if there is a lot of sediment
and/or particles in your water, then you will have to change your filters more frequently
than a location with little to no sediment. Be sure to replace your filters whenever you notice
a decline in the performance, whether it is a drop of flow rate and/or pressure or an unusual
taste in the water.
2. Flush filters thoroughly per filter manufacturers’ recommendation with fresh water to drain.
More details provided in the Filter Flushing section further down.
NOTE: Filters should not be flushed prior to 24 hours before installation to limit Microbial
Growth inside of filters.

PW70 Manual Page 19 - Revision: 8-17-2023
NOTES ON INSTALLATION
1. Do not install the product at the following locations:
-Near Fires
-Near Flammables
-In Humid Places
-In front of air conditioners
-Where exposure to rain or
snow is possible
-Outdoors or in direct sunlight
-Near chemicals (volatile
materials, organic solvents,
etc.)
-Near toilets
-Anywhere the temperature
may fall below 50°F.
2. Use source water within following quality range:
-Water pressure: 50-70psi
-Water temperature: 39-100°F (4-38°C)
-Turbidity: 0.5 NTU or less
-pH: 5.8-8.5
-Hardness: 300ppm or less
-Water Quality: Water quality meeting the Drinking Water Quality standard
*Please consult your distributor if source water quality is out of the specified range.
*The warranty will be void if the product is connected to source water that is out of the
specified range.
*This product is not equipped with internal filtration. It is intended to be connected only
to a potable water source.
3. When transporting the product, do not tilt it more than 45° from vertical.
*Severe tilting can cause a performance degradation.
4. Install the product on a flat surface and adjust the level of the unit using a level gauge.
*If the product is tilted more than 3°, overflow may occur.
5. Source water should not be above 100°F (38°C)
*Hot water may cause performance degradation or system failure.
6. Keep the sides and rear of the unit at least 5 inches (127mm) away from walls or other
objects for ventilation.
7. Do not bend the source water or drain hose or place heavy objects on them.
*If either are blocked, the water will not flow smoothly to and from the unit, and may
cause performance degradation.
8. Do not place any heating system near the rear of the unit.
9. The power supply, source water, and drain must be directly connected to the unit.

PW70 Manual Page 20 - Revision: 8-17-2023
FILTER FLUSHING PROCEDURE
Before starting the installation, any filters being used to filter the source water for the unit
must be flushed. This is important to rinse any loose carbon or debris from the filters so that it
does not plug another filter or membrane or end up inside the unit. DO NOT install and setup
the unit before flushing the filters.
Whether the unit is paired with R (Reverse Osmosis) or M (Ultra filtration) filter configurations,
there is a basic idea that applies to both: the filters, especially the carbon filters, must be
flushed or “rinsed.” This section will cover how to do this process.
Regardless of the setup used, all sediment and carbon filters must have several gallons of water
flushed through them to properly rinse the filter. The filters should be flushed in the same
direction as flow.
1. To begin, you will need a ¼” LLDPE tube connecting the unit to a water supply,
connected at the “Water In” port on the back of the machine. Install a ¼-turn valve just
before the unit to easily turn the water on and off.
2. Have a bucket, pitcher, or sink ready to catch the flush water.
3. Remove the lower front panel of the unit. Two screws down at the bottom of the panel
must be removed. Then, grip the bottom lip of the panel and pull outward. The panel
should hinge outward, and then come away from the unit completely. Set this panel
aside.