WaterLogic WL Cube Manual

WL Cube Firewall
OPERATING, INSTALLATION, AND SERVICE MANUAL
Waterlogic Commercial Products, LLC
11710 Stonegate Circle
Omaha, NE 68164
[phone]
www.waterlogic.us

CUBE OPERATING, INSTALLATION, AND SERVICE MANUAL
Congratulations on your choice of the Waterlogic CUBE water treatment system. The CUBE is a fully
programmable self-contained model that dispenses ambient cold, hot, and extra-hot water. Every
CUBE includes:
High Performance Multi-Stage Filtration
Bio-Cote Anti-Microbial Protection
Firewall Advanced Purification
The Waterlogic CUBE provides exceptional quality and great tasting water with every use.
TABLE OF CONTENTS
•Features and Benefits..................................................................3
•Certifications ...............................................................................4
•Introduction and Safety Alert Symbols .......................................5
•Safety Precautions.......................................................................6
•Model and Part Designations ......................................................7
•Specifications...............................................................................7
•Operating Instructions.................................................................8
•Hot Tank Principles of Operation ..............................................10
•Water Flow Diagram..................................................................11
•Programming Menu and Instructions .......................................12
•PCB LED Codes ..........................................................................16
•Pre-Installation Procedures.......................................................17
•Draining Procedure....................................................................24
•Installation Procedures..............................................................25
•Hot Tank Enabling Procedure....................................................28
•Service Requirements................................................................29
•Filter Replacement ...................................................................35
•Replacement Components........................................................38
•UV Lamp Replacement ..............................................................39
•Quartz Sleeve Replacement ......................................................41
•Descaling the Hot Tank..............................................................46
•Bypassing Cover Pin…………………….............................................52
•Parts Drawing and Part Numbers..............................................53
•Wetted Parts Drawing and Part Numbers.................................59
•Electrical Diagram......................................................................62
•Fault Codes and Troubleshooting .............................................63
•Warranty ...................................................................................76
CUBE Operating, Installation, and Service Manual Page 2 - Revision: 6-23-2015

CUBE FEATURES AND BENEFITS
Ambient, Cold, Hot, and Extra Hot Water
Pressure Fed Ambient, Cold, Hot, and Extra Hot Selections to meet a wide range of customer demands.
Volume Storage and Water Capacity
1.4 liters of Cold, 1.3 liters of Hot Water Storage.
BioCote®Anti-Microbial Protection
Plastic surfaces surrounding dispensing areas and drip tray are infused with an
exclusive silver additive called BioCote®. Silver is a natural anti-microbial that
inhibits the growth of microorganisms providing additional surface protection.
Large Dispense Area with Recessed Faucet
6.4 inch dispense height with BioCote® recessed faucet to protect from cross-contamination.
Child Safeguard
CUBE requires selection followed by main dispense and defaults back to cold water selection after 3
seconds of inactivity to prevent accidental dispensing of hot water.
Digital Display
CUBE has an innovative user interface utilizing a LCD display for easy use and programming.
Advanced Programming
Customizable settings for optimizing each CUBE including; Cold Temp Set Point, Hot Temp Set Point,
UV Timer, Filter Timer Setting, Filter Life Monitor, Sleep Mode, and Default Selection Mode.
Energy Saving Sleep Mode
Energy saving Sleep Mode can be programmed to turn off Heater after 3 hour or 72 hours of inactivity.
Filter Timer
Selection includes the choice of 3 different filter replacement settings variations programmed for 3, 6 or
12 months. The Filter Timer also has an open to be turned off.
Firewall™
Firewall is proprietary technology that places the UV lamp at the point of dispense.
This point of dispense purification keeps the dispense nozzle free from external
contamination as well as purifying the water, making the freshest water possible.
CUBE Operating, Installation, and Service Manual Page 3 - Revision: 6-23-2015

CUBE CERTIFICATIONS
Waterlogic water treatment systems have been tested, and certified to rigorous NSF and UL Standards.
We believe that performance testing and certifications validate Waterlogic as a world-leader in water
treatment systems.
CUBE Certifications Include
NSF/ANSI-55 Class A –Ultraviolet Microbiological Water Treatment Systems
Water Quality Association is an international standards organization. Firewall™ Technology
contains our latest, most innovative and patented breakthrough, “The Firewall™”, the most
comprehensive UV purification system for point-of-use water treatment systems ever
developed. The Waterlogic Firewall components has been tested and certified by the Water
Quality Association (WQA) to NSF/ANSI-55 Class A – Ultraviolet Microbiological Water
Treatment Systems, and to NSF/P231 and the USEPA Standard for Microbiological Water
Purifiers.
NSF P231 –Protocol for Microbiological Purifiers
The Public Health and Safety Organization establishes minimum requirements for health and
sanitation characteristics of microbiological water purifiers. The requirements are based on
the recommendations of the U.S. Environmental Protection Agency's Task Force Report.
NSF/ANSI-42 – Chlorine, Taste and Odor Reduction
NSF/ANSI-53 – Lead and Cyst Reduction
The Public Health and Safety Organization establishes minimum requirements for materials,
design, construction, and performance of drinking water treatment units that are designed
to reduce specific aesthetic-related contaminants in public or private water supplies.
UL399 – Certified Drinking Water Cooler
Intertek Labs (ETL) Certified the CUBE to ANSI/UL 399 Standard for Drinking Water Coolers.
BPA Free - Waterlogic tests for BPA and declares that all of its products are Bisphenol-A
FREE and contain no harmful BPA plastics.
Waterlogic manufacturing is certified to ISO 9001 – Quality Management Systems
(certified by Moody International). ISO 9001 is the internationally accepted standard
for well managed organizations that have adopted the key quality management
principles to its operations to bring consistent quality products and a culture of
continuous improvement.
Safe Drinking Water Act
Waterlogic water treatment systems conform to the Safe Drinking Water Act (SWDA) “lead-free”
amendment effective January 4, 2014.
CUBE Operating, Installation, and Service Manual Page 4 - Revision: 6-23-2015

INTRODUCTION
Carefully read and follow all instructions to ensure proper and efficient operation of your CUBE.
Contact Waterlogic or an Authorized Waterlogic Dealer if you have any questions.
Waterlogic and Authorized Waterlogic Dealers employ trained service personnel who are experienced
in the installation, function and repair of Waterlogic equipment. This publication is written for use by
these qualified individuals. Waterlogic encourages users to learn about products, however, we believe
that product knowledge and service is best obtained by consulting Waterlogic or an Authorized
Waterlogic Dealer.
Waterlogic water treatment systems 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 Waterlogic and its affiliates are protected by patents issued or
pending in the United States and other countries.
Waterlogic 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 Waterlogic could void the
warranty and user’s authority to operate the equipment.
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 (definitely 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 or has the potential to result in minor
injury; and/or minor property damage.
CUBE Operating, Installation, and Service Manual Page 5 - Revision: 6-23-2015

SAFETY PRECAUTIONS
Basic safety precautions should be followed, including the following:
DANGER!If incorrectly installed, operated or maintained, this product can cause death or severe
injury. Those who install, operate, or maintain this product should be trained in its proper use, warned of
its dangers, and should read the entire manual before attempting to install, operate, or maintain this
product.
WARNING! Unit is to be used for its intended purpose as described in this manual, and untrained
individuals who use this manual assume the risk of any resulting property damage or personal injury.
WARNING!HOT WATER. Unit produces Very Hot Water up to 203oF. Water above 125oF can cause
severe burns or scalding. Keep unauthorized people and children away from the unit to avoid accidental
dispensing of hot water. Children should not use without supervision.
DANGER! ELECTRICAL SHOCK HAZARD. Always unplug from power supply prior to servicing
equipment to prevent electrical shock.
WARNING! This system 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. The system is designed for the supplemental bactericidal treatment of either treated
and disinfected public drinking water, or other drinking water, which has been tested and deemed
acceptable for human consumption by the state or local health agency having jurisdiction. The system is
designed to reduce normally occurring non-pathogenic or nuisance microorganisms only. System is not
intended for treatment of contaminated water.
WARNING! Dispenser Could Tip or Fall causing serious injury. Always install unit on a firm, flat, and
level surface and secure the CUBE to the base cabinet with the screw provided to lock the components
together. Never place heavy items on top of unit and never climb, stand, or hang on unit or storage
cabinet to prevent injury and damage.
CAUTION! INDOOR USE ONLY.Do not install outdoors or where unit is in direct sunlight. Do not
install where ambient temperature goes below 50°F or above 97°F. Avoid high humidity and moisture.
Product life and performance will be impacted and warranty could be voided.
CUBE Operating, Installation, and Service Manual Page 6 - Revision: 6-23-2015

MODEL/PART DESIGNATIONS
BRAND NAME DESCRIPTION
CUBE Waterlogic CUBE – Ambient, Cold, Hot, and Extra Hot
F-FWCU1-M-HCA-TT-SB-IN1
SPECIFICATIONS
ITEM
Water
¼” Quick Connect
Cold Water Temperature
Cold Water Temperature – Factory Set Point 41°F - 5°C
(Adjustable) 34° - 54° F. (1.1°- 12.2°C)
Hot Water Temperature 158°- 203°F (70°- 95°C) Programmable – Factory Set Point 87°F – 30.5C°
Recommended Service Pressure
40-60 psi (275-414 kPa) – Use Pressure Regulator
Maximum Working Pressure
60 psi (414 kPa) – Use Pressure Regulator
Environmental Temperature
35°- 100°F (2°- 37°C)
Refrigerant Gas R134a – 1.94 oz. (55 grams) - Hi (280 psi) Low (90 psi)
R134a Pressures High (230 psi), Low (90 psi)
SHIPPING SPECIFICATIONS
ITEM
Width/Depth/Height
#
14 in (356 mm), 19 in (483 mm) x 17 (432,m).
#
Weight – Dry (w/o packaging) 30 lb. (15 kg)
Shipping Information
(length x width x height)
20 in. x 22 in. x 22 in.
8 units per pallet
Shipping Weight – Dry 41 lb. (19 kg)
ELECTRICAL SPECIFICATIONS
ELECTRICAL SUPPLY 120V/60Hz 15 Amp Service
+
COMPONENT POWER (approximate) AMP DRAW (approximate)
Heater 500 Watts 4.2 Amps
Compressor 210 Watts 1.75 Amps
UV Lamp System 13 Watts 0.11 Amps
Pump 10 Watts 0.08 Amps
CUBE TOTAL 733 Watts 6.14 Amps
#CUBE is 17 in. tall and may not fit between countertops and cabinets - Check installation to ensure adequate clearance.
CUBE Operating, Installation, and Service Manual Page 7 - Revision: 6-23-2015

OPERATING INSTRUCTIONS
The above picture shows front LCD display and control panel for the Waterlogic CUBE .
Button Operational Use
Select Cold Water Selection + Dispensing Button to start dispensing until
desired fill.
Select Ambient Water Selection + Dispensing Button to start dispensing
until desired fill.
Hold for 3 seconds
Press and Hold Hot Water Selection for 3 seconds, until the Hot Water
Icon is illuminated. Press dispensing button until desired fill.The delay is
a safety feature that prevents hot water from being accidently dispensed.
Hold until Extra Hot Selection
button stops flashing –
indicates the temperature has
been reached..
Press and Hold Extra Hot Water Selection. The Extra Hot Selection
Button will flash red to indicate the water is heating. When the red
flashing icon turns off, this indicates that the water is to the
temperature.
Press the Hot Water Selection Button + the Dispensing button until
desired fill.
WARNING! Unit produces Very Hot Water up to 203°F. Water above
125°F can cause severe burns or scalding. Keep unauthorized people
and children away from the unit to avoid accidental dispensing of hot
water. Children should not use without supervision.
CUBE Operating, Installation, and Service Manual Page 8 - Revision: 6-23-2015

Dispensing your choice of water is very simple.
1. Place your cup centrally in the dispensing area. Always use a cup suitable for use with hot
water. Never hold cup or place hands in dispensing area while dispensing hot water. Never try
to fill more than one cup at a time. The drip tray can be removed for filling bottles or other
containers.
2. Select the type of water you wish to be dispensed by press/touching the cold, ambient or hot
water select icon until it illuminates.
3. Select the dispense button in the middle of the panel to dispense water.
a. Cold and ambient water are dispensed automatically via a Push-To-Dispense method
through the FIREWALL UV purification system to ensure the safety of the water. Select
and hold the dispense button to start the flow of ambient or ambient water, holding the
dispensing button to stop the flow once your cup has reached the desired level.
b. Hot Water is dispensed via a Push-To-Dispense method. Press and hold the dispense
button until your cup has reached the desired level.
WARNING! Unit produces Very Hot Water up to 203°F. Water above 125°F can cause severe
burns or scalding. Keep unauthorized people and children away from the unit to avoid accidental
dispensing of hot water. Children should not use without supervision.
WARNING! Always use a ceramic cup or a cup suitable for use with hot water.
WARNING! Do not hold cup or place hands in dispensing area while dispensing hot water.
WARNING! Never try to fill more than one cup at a time.
CUBE Operating, Installation, and Service Manual Page 9 - Revision: 6-23-2015

HOT TANK PRINCIPLES OF OPERATION
All Waterlogic Hot Tanks have a built in Vent or
Expansion Chamber in the top of the tank except for
WL270 (GF) units.
The Vent Chamber allows for expansion of the water
when it is heated.
The chambers are separated by a welded-in tank
baffle.
Water always flows into the bottom of the tank and
out the top to the faucet.
The hot tank outlet tube has a restrictor in its base.
This ensures the reservoir is always full by allowing
more water in than out.
There is a small hole in the side of the tank outlet tube
that allows air and water to pass into the vent
chamber as it is heated.
Water in the vent chamber is suctioned back through
the outlet tube vent hole when water is dispensed.
Expansion of water as it is heated in the reservoir will
push the water out the faucet when the outlet tube
vent hole becomes plugged with debris or scale.
The small Outlet Vent Hole is susceptible to scale build
up and is a key indicator that descaling is required.
It is critical to descale the hot tank through the vent
line and outlet line on a regular basis to prevent this
problem.
Descaling through the inlet and/or outlet lines only
will not clean the vent chamber and outlet vent hole
properly.
CUBE Operating, Installation, and Service Manual Page 10 - Revision: 6-23-2015

CUBE FLOW DIAGRAM
CUBE Operating, Installation, and Service Manual Page 11 - Revision: 6-23-2015

PROGRAMMING MENU AND INSTRUCTIONS
PROGRAMMING: ENERGY SAVING SLEEP MODE
The Cube has an energy saving / sleep mode feature that minimizes power consumption by
shutting down the heater circuit if the machine has not been operated for either 3 or 72 hours
depending on the program setting. The Cube is shipped with default set to 3 hour energy saving
mode.
1.
Default is set to 3 hours.
Press and hold Hot Water Icon for 10 seconds,
until you hear the Cube beeps.
2.
To set Sleep Mode to 72 hours, press and hold
the Extra Hot water icon for 10 seconds
Until the Cube beeps
3.
Wake up the Cube out of Energy Saving Mode.
The Cube will wake up or come out of energy saving mode upon touching any of the main
control buttons. Please note the hot water may take up to 10-12 minutes to reach Hot
Temperature Set Point once the machine is taken out of energy saver mode.
CUBE Operating, Installation, and Service Manual Page 12 - Revision: 6-23-2015

PROGRAMMING: DIP SET-UP COLD WATER TEMPERATURE
CUBE Main PCB - DIP Switch 2
Cold Water Temp Range
41° F -5°C
50° F - 10°C
59°F - 15°
PROGRAMMING: DIP SET-UP HOT WATER TEMPERATURE
CUBE Main PCB - DIP Switch 2
Hot Water Temp Range
176°F - 80°C
189°F - 87° C
203°F - 95°C
CUBE Operating, Installation, and Service Manual Page 13 - Revision: 6-23-2015

PROGRAMMING: DIP SET-UP FILTER REPLACEMENT TIMING
Filters should be configured to optimize your system. Filters need to be configured and specified to do
the job given the local water conditions, usage, maintenance schedule, and placement restrictions.
In order for our filters to perform as represented and to provide the best quality water possible, it is
essential that filters be replaced periodically. The frequency of filter changes depends on 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 in flow
rate and/or pressure or an unusual taste in the water.
CUBE Main PCB - DIP Switch 1
A combination of switches 2 and 3
•3 Months
•6 months
•12 months
•None
CUBE Operating, Installation, and Service Manual Page 14 - Revision: 6-23-2015

PROGRAMMING: DIP SET-UP FOR UV SETTINGS
CUBE Main PCB - DIP Switch 1
CS = CDS Sensor (used in Europe)
US = UV Sensor
CUBE Operating, Installation, and Service Manual Page 15 - Revision: 6-23-2015

PCB LED CODES
CUBE Operating, Installation, and Service Manual Page 16 - Revision: 6-23-2015

PRE-INSTALLATION PROCEDURES
DANGER! ELECTRICAL SHOCK HAZARD.
Only qualified personnel who have read and understand this entire manual should attempt to install, or
service this unit, 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 4 feet in length, and assorted ¼” quick connect fittings.
•TDS Meter and Test Strips for measuring chlorine. - Optional
•1/8 NPT Female Thread to ¼” Compression Fitting (Used to connect hose to drain fittings)
1. Unpack the Waterlogic CUBE and check exterior for damage.
WARNING! CUBE IS HEAVY.
Use proper lifting aids and handling techniques to avoid injury. Use assistance as single person lift
could cause injury. Always drain before handling and transporting and handling to reduce the weight
of the unit.
2. Open the top cover by removing the 2 screws that fix it in place.
3. Visually inspect all electrical connections and power lead.
4. Visually inspect all water connections.
5. Connect to a potable drinking water supply via a ¼” John Guest tube; the supply must be limited to
40-60 psi.
6. Connect the power cord to an appropriate power supply and the machine.
7. Turn on the Red Power Switch. I=ON
8. Replace the top cover and reinstall the screws.
NOTE: Hot tank must be filled prior to filling cold tank.
9. Select the Hot Button and the Dispense Button to allow water to flow until water is clear.
CUBE Operating, Installation, and Service Manual Page 17 - Revision: 6-23-2015

10. Select the Cold Button and the Dispense Button to allow water to flow until water is clear.
11. Turn on the Green Heater / Compressor switch for approximately an
hour for the Cube to heat and chill. I=ON
12. Test water temperatures and ensure the water tastes acceptable.
13. Verify all functions of the Cube work correctly.
14. Turn off the Red Power Switch and the Green Heater/Compressor
Switch. O=OFF
15. Turn off the water.
16. Drain from rear drain valves.
17. Clean and repack for installation.
Flush Filters
CAUTION! FILTER FLUSH REQUIRED.
The Cube is supplied with a filter. Filters should be configured to optimize your system. Filters need
to be configured and specified to do the job given the local water conditions, usage, maintenance
schedule, and placement restrictions.
In order for our filters to perform as represented and to provide the best quality water possible, it is
essential that filters be replaced periodically. 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 in flow rate and/or pressure or an unusual taste in the water.
1. Select Ambient Water Selection + Dispensing Button. Dispense approximately 10 liters of water to
remove the excess carbon fines and generate the filter.
NOTE: Filters should not be flushed prior to 24 hours before installation to limit Microbial Growth.
CUBE Operating, Installation, and Service Manual Page 18 - Revision: 6-23-2015

Sanitizing
WARNING! Read and understand the contents of this manual before attempting to service
CUBE. 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 Waterlogic Equipment.
Materials Needed:
•Personal Protective Equipment. Rubber or Nitrile Safety Gloves and Protective Eyewear
•Phillips Screwdriver.
•Replacement filter cartridge(s)
•New 13 Watt UV lamp
•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
1.
Visually inspect all electrical and water connections for signs of wear or damage.
DANGER! HIGH VOLTAGE ELECTRICAL HAZARD.Unplug before inspection and service.
2.
Waterlogic recommends changing the UV Lamp every 12 months.
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 LAMPS ARE HAZARDOUS. Lamps are considered Hazardous Waste and
must be disposed of accordingly. Refer to Product MSDS sheet for details.
3.
Turn off the incoming water supply at the isolation point
4.
Select the Cold Water icon and then select the dispense button.
When the water stops flowing release the button
5.
Switch Off the Red Power Switch and the Green
Heater/Compressor switches at the rear of the machine
and remove the power lead from the Cube. O=OFF
CUBE Operating, Installation, and Service Manual Page 19 - Revision: 6-23-2015

6.
Use a Phillips-head screwdriver to remove the two screws at the rear of the
machine that hold the top panel in place.
7.
Remove the Top Panel by placing your hands on the top as
shown in the picture and push it backwards and then lift it up to
remove.
8.
Insert your finger into the round hole of the lever and pull the
lever up to the vertical position.
9.
Pull the lever straight up to remove the filter assembly (some
slight force may be required
10.
Unscrew the filter body from the filter head by turning the base
in an anti-clockwise direction.
11.
Remove the filter cartridge from the filter head by pulling it out as shown.
12.
Add the required amount of sanitizing fluid to the empty filter housing.
CUBE Operating, Installation, and Service Manual Page 20 - Revision: 6-23-2015