Natura D3 Owners Manual 3 Filter System

INSTALLATION AND MAINTENANCE
INSTRUCTION MANUAL FOR
NATURA
MODEL NWSD SERIES 3
WATER DISPENSER
NATURA Engineering & Technical Service Dept.
222 East Campus View Blvd
Columbus, Ohio 43235
U.S.A.
1
Index
1. Important Recommendations
2. Safety Warnings
3. General
3.1 Purpose of the Manual
3.2 Authorized Center for Technical Assistance
3.3 Description of Functions
3.4 Technical Information
3.5 Usage Limits
3.6 Proper Use of Machine
3.7 Improper Use of Machine
4. Transportation
4.1 Transportation and Movement
4.2 Storage of the Unit
4.3 Unpacking
5. End-User Maintenance Instructions
5.1 Advice for Proper Use
This Section of Manual Reserved for Qualified Service Technician or Personnel Only.
6. Installation
6.1 Directions for Unpacking
6.2 Directions for proper assembly
6.2.1 Installing the Faucets
6.3 Directions for Proper Placement
6.4 Connection to the Water Line
6.5 Connection to the CO2 Line
6.6 Start Up Procedure
6.7 Equipment Settings
7. Maintenance
7.1 Regular Maintenance
7.2 Washing and Sterilization
7.3 Replacing the Disposable Filters
7.4 Replacing the Air Filter
8. Spare Parts
9. Manufacturer’s Main Office Address and Contact Numbers.
10. Troubleshooting
11. Maintenance Record
12. Product Specifications
2
WHAT’S INCLUDED
WATER REFRIGERATION UNIT
COLD
SPARKLING
ROOM
TEMPERATURE
STILL
COLD
STILL
FAUCETS
(NOT ASSEMBLED TO
UNIT FOR SHIPMENT)
DRIP TRAY
FILTER SET
TUBING
3/8” OD
CO2 PRESSURE
REGULATOR
1/4” OD
WATER VALVE AND PRESSURE
REGULATOR ASSEMBLY
3
1. IMPORTANT RECOMMENDATIONS:
o To avoid electrical shock always unplug the Unit from the electrical outlet before
opening the top cover.
o Use only original and new parts to guarantee the reliability, optimization, and
performance of the unit.
o If the unit has not been used for a long time, it still needs special care and attention to
avoid bacterial pollution.
o Always wear proper protection when performing any type of service or maintenance.
o To guarantee proper working performance of the unit, it must always be connected to
a power supply. Remove only the power source for routine maintenance or servicing.
o Do not expose the CO2 canister to the sun, to sources of heat, or to temperature below
32°F (0°C.).
o Always keep the CO2 canister in a vertical position while in use. Always secure
properly with a chain or strap.
o To properly carbonate the water, make sure that CO2 canister valve is completely
open.
o Use only super dry CO2 (UN1013) gas for drinking water.
o Adjust the CO2 regulator pressure to 60-65 psig.
o When cleaning the unit, do not use corrosive, acidic products or metal brushes.
o Do not wash the unit directly with high-pressure water.
o Connect to a water supply with a pressure of 30 to 120 psig.
2. SAFETY WARNINGS:
o The unit must be connected to a suitable power supply source. The unit is designed to
operate at 115 volt 50Hz nominal input.
o The unit must be protected by a properly installed circuit breaker. Verify that the
electrical current is correct for the power of the unit, which is written on the label.
o To avoid electrical shock always unplug the unit from the electrical outlet before
opening the cover.
o Only specialized and qualified technicians should exclusively perform the installation,
servicing and maintenance of the unit.
o All packaging materials (plastic bags, foam, etc.) should never be left within the reach
of small children. These items are potentially hazardous and may cause severe injury
or death.
4
3. GENERAL:
3.1
Purpose of the Manual
This manual is an integral part of the unit and must be given to the purchaser. It was edited
with the purpose of supplying the user and service personnel, in a clear and comprehensive
manner, all necessary information for the use and maintenance of the Natura™ water
dispenser. It is necessary to comply with the instruction’s content contained in this manual in
order to guarantee the correct working condition of the machine.
3.2
Technical Assistance and Maintenance
For any and all other technical issues, you must contact the Technical Service Department of
the Distributor or Vendor of the Unit or you may contact:
Natura Water, Inc
222 East Campus View Blvd
Columbus, Ohio 43235
3.3
Description of Functions
The Natura® water dispenser units are made for:
a) WATER TREATMENT
The Treatment Phase (Diagram 1)
Water is filtered and disinfected through an organic component purification system. Chlorine,
organic and inorganic chemical compounds, which are often found in wells and water
aqueducts, are filtered out by the sediment and carbon filters and finally Nano Ceram .
b) CARBONATION
The Carbonation Phase (Diagram 3)
After water treatment phase, the water is pushed into a small stainless steel cylindrical tank
by a high pressure pump, causing the water to mix with the CO2 by means of a percolation
process called the “venture effect”. In this process, the water absorbs CO2 and becomes
carbonated.
5
c) REFRIGERATION
The Refrigeration Phase (Diagram 2)
Following carbonation, the water travels through the cooling coils immersed inside a
thermally insulated plastic water chiller bucket containing the ice bank. The refrigeration
system is controlled by a thermostat device that regulates the temperature of the water inside
the chiller bucket which then controls the start and stop of the compressor. The temperature
sensor is connected with the thermostat and it is immersed in the water inside the chiller
bucket. The thermostat can be manually adjusted depending on the desired temperature of
the water.
3.4
Technical Information
The Natura® Water Dispenser is made up of two separate units enclosed in a stainless
steel sheet metal casing:
o One is the Water Filtration Set that contains two stages of filtration. The first stage is
for filtering sediments and other particles present in the water. The second stage is the
carbon filter which eliminates chlorine taste and odor from the water.
o The second unit is the Refrigeration & Carbonation Unit that is made up of a
compressor, a fan, agitator, water chiller bucket (or ice bank) and stainless steel coils
for cooling the drinking water. It also includes the section for making sparkling water:
the carbonator tank, high pressure water pump and motor.
The supply of treated water is dispensed by three faucets with levers situated in the upper
front area of the machine. (1) The green handle or button is for treated, cold sparkling
(carbonated water); (2) the blue handle or button is for treated cool temperature water; and
(3) the white handle or button dispenses treated room temperature water.
The unit comes complete with stainless steel spillage collection tray or drip tray.
6
FILTRATION BOX
WATER INLET
REFRIGERATION &
CARBONATION UNIT
UNIT
Sediment
Carbon
Filter
1
Filter
2
WATER CHILLER
COIL WITH
CARBONATOR
PUMP & TANK
Nano Ceram Filtration
WATER FLOW DURING WORKING PROCESS
DIAGRAM 1: BASIC WATER FILTRATION PROCESS
STAINLESS STEEL WATER CHILLER COIL
INSULATED PLASTIC BUCKET
EVAPORATOR
COIL
CONDENSER FAN
CONDENSER
COMPRESSOR
DIAGRAM 2: EXAMPLE OF REFRIGERATION SYSTEM
7
1.
Carbonator Tank.
2.
Level Float.
3.
Switch Box.
4.
Carbonator Pump and Motor.
5.
CO2 and H2O Check Valves.
6.
CO2 Pressure Regulator
DIAGRAM 3: HYDRAULIC SCHEMATIC OF THE CARBONATION SYSTEM
FILTER SEt
DIAGRAM 4: CLASSIC LAYOUT OF THE 3 MAIN COMPONENTS / UNIT
CO2 VALVE
TANK PRESSURE GAUGE
SUPPLY PRESSURE GAUGE
PRESSURE REGULATOR
TUBE / HOSE FITTING
CO2 TANK
DIAGRAM 5: THERMOSTAT
LOCATED ON THE BACK
DIAGRAM 6: CO2 CANISTER/REGULATOR
8
STEP 2
STEP 3
STEP 1
1- REMOVE TWO SCREWS
STEP 1
2- LIFT FRONT EDGE OF TOP 1 INCH
3- PUSH THE TOP BACK AND REMOVE
STEP 4
4- LIFT AND REMOVE THE AIR FILTER
5- REPLACE AIR FILTER AND REVERSE THE
STEPS TO REPLACE THE TOP
DIAGRAM 7: CHANGING THE AIR FILTER
9
3.5
Usage Limits
o Connect to a POTABLE WATER supply only. If the water has high turbidity or
sediment, then install an additional pre-filter prior to the main filtration box.
o The unit cannot be used to treat sewage, salt water, chemically conditioned water, or
water with physical or bacterial properties that will keep the water from being treated
effectively.
o The water dispenser is not designed to operate in excess humidity, outdoor
environments, or in excessive heat environments. Therefore, it is advised not install or
use the unit in the aforementioned environments.
o On a daily basis, it is important to remove three liters of water from the tap prior to
drinking the dispense water.
3.6
Proper Use of Machine
Use the water purifiers as described in this manual to properly treat drinking water.
3.7
Improper Use of Machine
Anything not mentioned in point 3.6. Any other use is to be considered unreasonable
and the manufacturer will not respond to subsequent damages that may arise.
4. TRANSPORTATION:
A thin plastic protective film covers the external stainless steel casing of the water purifier
units and the filtration box. This protective cover must not be removed until the unit is ready
for installation to avoid any scratches or stain on the surface of the casing. When shipping, it
is important to apply labels with ‘FRAGILE’ warnings on the outsides of the box.
4.1
Transportation and Movement
The Water purifier must always be in a vertical (“ Up”) position when being
transported or moved and handled with special attention due to its ‘Delicate’ nature.
4.2
Storage of the Unit
The unit should not be exposed to a very high humidity condition and should only be
stored in a dry, cool place. Do not stack the units more than two high without any
proper support or protection on the top surface.
4.3
Unpacking
Cut the banding with box cutter then remove the top and outer sleeve.
Lift the unit off the bottom pad. Peel the protective film off the stainless steel panels
when the unit is in its final location.
5. END-USER MAINTENANCE INSTRUCTIONS:
5.1 Proper Care
10
o The faucet nozzles should be wiped on a daily basis with clean cotton rug or non
abrasive sponge and warm or hot water.
o The spillage collection tray (drip tray) should be emptied and washed with hot
water on a daily basis.
o The external stainless steel surface of the cabinet needs to be cleaned and
polished once every month with regular non-abrasive cleaning solution or metal
cleaner.
o Use metal polish to restore its shiny appearance or to remove any discoloration or
stain on its surface.
o Use only a soft and all cotton cloth for cleaning and polishing the stainless steel
surface of the unit.
o Unplug only the electric power connection during maintenance and servicing or in
case of problem or malfunction of the unit.
o When the CO2 regulator gas quantity gauge needle moves to the Red section of
the gage, it is necessary to replace the canister immediately or have it refilled to
avoid disruption of the sparkling water supply.
o In order to obtain the maximum efficiency of the refrigeration system, periodically
clean the condenser grill with a soft brush and vacuum cleaner.
o Replace the air filter every 12 months or when there is a noticeable reduction in
cold water production.
o Check the heat exchange water tub monthly. Add distilled or de-ionized water until
the water level is over the coils. DO NOT fill to the very top of the tub.
5.2
Advice for Proper Use
o In public bars and restaurants, “Purified Water” must be clearly indicated on the
unit or on the side of it. Signs must be posted on the unit saying: “Potable, purified
water” and the purified water must be served in appropriate bottles with correct
labels and specifications.
o Purified water should be listed as such in the price list and on receipts and invoices
so that it is not confused with regular water.
o When not using the machine for a long period of time, it should be properly stored
away to avoid bacterial contamination.
o On a daily basis, always run at least three liters of water prior to consumption.
o Never add brine water to the water chiller bucket.
o Do not expose the CO2 tank to the sun, any sources of heat, or to temperatures
below 32° F (0°C).
o Always Keep the CO2 tank in a vertical position and secure it with a small chain or
strap.
o For correct carbonated water, make sure that the CO2 tank pressure, indicated by
the regulator pressure-gauge, is compressed between 60 and 65 psi.
o Use only CO2 (UN1013) super dry for carbonating drinking water.
11
ATTENTION:
THIS SECTION OF THE MANUAL IS FOR QUALIFIED
SERVICE TECHNICIANS ONLY!
6. INSTALLATION:
6.1
Directions for Unpacking
o Cut the banding straps on the carton
o Remove the top, top pad and cardboard sleeve
o With the help of another person, lift the unit up off the bottom pad and place into
the final installation location
6.2
Directions for Proper Assembly
o 6.2.1 Installing the faucets
o Find the three loose faucets. They are inside the pockets of the
packaging top pad.
o Locate the white, blue and green bands found on the faucet levers.
These indicate the type of water each faucet dispenses and the location
on the front panel.
o Starting on the left, install the faucet with the GREEN band. The faucet
with the BLUE band goes in the middle. The faucet with the WHITE band
goes on the right.
o Install a faucet by placing the faucet into the fitting located on the front
panel. Make sure that the faucet is properly aligned (vertical). Push the
faucet all the way back onto the fitting.
o Grasp the chrome ring attached to the fitting and screw it onto the faucet
body securely.
BLUE
STEP 2
GREEN
STEP 1
CHROME RING
(ON EACH FAUCET)
12
WHITE
6.3
Directions for Proper Placement of the Components
o Place the unit in an appropriate and hygienic location, far from heat sources
and with adequate ventilation on a flat, leveled, solid and smooth surface. The
surface must be able to support the120 lb weight of the unit.
o Locate the unit within 10 feet of a water supply.
o Locate a, 115 VAC, 10 amp minimum within 6 feet of the unit.
o Maintain at least 3 inches on sides for proper ventilation.
o Allow 14 inch minimum above the unit for removing the top to perform routine
maintenance.
o Position the filter box within 6 feet of the unit
o Drop the head of the power cord (located inside the unit) down through the 2”
diameter hole located in the base.
14” CLEARANCE
MIN
6 feet MAX to power
outlet
Natura™ WATER
115 VAC, 15
AMP
3”MIN
REFRIGERATION
UNIT
3”MIN
6 feet MAX
from
filtration box
outlet to unit
6 feet MAX from CO2
cylinder to unit
FILTRATION
SET
4 feet MAX from water
supply to filtration box
inlet
CO2 CANISTER
13
6.4 Connection to the Water Line
WARNING: DO NOT USE WITH WATER THAT IS NOT MICROBIOLOGICALLY
SAFE OR OF AN UNKNOWN QUALITY WITHOUT ADEQUATE DISINFECTION
BEFORE OR AFTER THE UNIT.
o Connect a ball valve/regulator assembly (included) to the main water supply. A
ball valve/ regulator assembly are included in the installation kit.
o Connect the water regulator to the filtration box using the tube provided. Handtighten the fitting that attaches the tube to the regulator.
o Insert the other end of the tube assembly into the “inlet” quick connect fitting on
the left side of the filtration box.
ATTENTION: IT IS IMPORTANT TO MAKE PROPER CONNECTION TO THE
QUICK CONNECT FITTINGS TO AVOID LEAKS. SEE INSTRUCTIONS BELOW
o Place the Filtration set in the desired location no more than 4 feet from the
water supply and 6 feet from the unit.
CAUTION: DO NOT PLACE UNDUE STRESS OR SIDE LOAD ON IN/OUT
FITTINGS OF THE REGULATOR AND FILTRATION BOX.
INLET
OUTLET
Secure the filter set to the wall or other structure using the proper fasteners. Mounting holes
are located on the back of the filtration box (behind the filter sumps).
14
o Connect the 3/8 OD tubing (supplied) to the quick connect fitting on the outlet of
the Filtration box.
o Connect the other end of the 3/8 OD tubing to the Natura™ Water Refrigeration
unit. To do this, reach inside the top of the unit (the unit is already opened) and
find the coil of tube that has a quick connect fitting with a plug on the end. Feed
the end of this tubing through the 2” diameter hole in the bottom of the unit.
Remove the plug and set aside. Now connect this tube to the one from the
filtration box.
o Make sure that the tube does not tangle and does not come in contact with any
heat sources.
o Install the filter sumps in the filtration box. NOTE: MAKE SURE THAT THE
PROTECTIVE PLASTIC WRAPPERS ARE REMOVED FROM THE FILTER
CARTRIDGES! The sediment filter (white) is located on the left. The carbon
filter (black with netting) is located on the right. Make sure that the cartridge
slips down over the stand pipe in the bottom of the sump. Hand tighten – DO
NOT OVER TIGHTEN.
o When laying out the supplied tubing for installation, if it is necessary to pass the
supply tubing under the platform, it is important to have good tubing protection
to prevent the tube from getting cut. Copper pipes or tubing of the same
diameter before and after the filtration box and to the unit can be used instead
of the plastic tubing supplied.
o Always use certified plumbing materials for contact with potable water.
PROVIDED WITH UNIT
WATER
REFRIGERATION UNIT
WATER
VALVE
POWER
CORD OUT
BOTTOM OF
UNIT
WATER
PRESSURE
REGULATOR
AND TUBING
ASSEMBLY
FILTER
SET
WATER SUPPLY
LINE – FROM
MAINS
3/8 OD
TUBING
PROVIDED WITH UNIT
SCHEMATIC OF INSTALLED UNIT
15
1/4 OD TUBING
FOR CO2
CONNECTION
PROPER QUICK CONNECT FITTING CONNECTION INSTRUCTIONS
Connections between the pressure regulator, filtration unit and water refrigeration unit are
accomplished using plastic tubing and push-together quick-connect type fittings.
PLASTIC TUBING
QUICK-CONNECT FITTINGS
1.
Cut tube ends square and straight. Do not
deform the tube (i.e., cause tube to compress
its diameter so it is no longer round).
2.
Make sure the outer surface of the tube is
clear of marks or scratches for a length equal
to twice the tube diameter. This allows the
“O” ring to seat properly against the tube
(See Figure 1).
Fittings consist of two parts: a body
and a colored collet.
1.
3.
Avoid sharp changes in direction when
routing the tubing. Sharp turns cause the
tubing to flex and deform which reduces its
flow capacity.
Push tube through Collet into Body
6.5
To install a tube, push it through
the collet until it seats firmly at
the bottom of the fitting.
To remove a tube, push and hold
the collet against the body while
pulling the tube out.
NOTE: Systems are shipped with a plug in
each external fitting. Remove a plug in the
same manner as a tube.
2.
Tube must seat firmly at bottom of fitting
Push Collet against Body to release tube.
Connection to the CO2 Line
o Place the CO2 canister within 6 feet of the water refrigeration unit. If the canister
is to be farther from the unit, use a longer piece of 1/4” OD flexible plastic tubing
rated at 150 psi or greater.
o Use a small chain or strap to anchor and secure the CO2 canister to a sturdy
support.
o Open the CO2 canister’s valve slowly to allow some CO2 gas to leak out for a
few seconds, Screw the pressure regulator (included) to the tank’s valve
and tighten it firmly (Diagram 6). Make sure that there is a gasket between the
cylinder valve and regulator connector.
o Connect the ¼” OD tubing (included) to the CO2 regulator outlet tube and the
quick connect elbow on the carbonator tank located inside the water
refrigeration unit. Remove the plug from the elbow first. Route the tubing up
through the 2” diameter hole located in the base.
o Use only super dry CO2 (UN1013) for drinking water.
16
6.6
Start Up Procedure
o Make sure that all of the connections, described above, have been made.
o Turn on the water ball valve and check for leaks. Check the faucet connections,
Open the pressure relief valve located on the carbonator tank by lifting the RED
lever (vertical). Keep it open until water flows from the valve then close it (RED
lever horizontal).
o Slowly open the CO2 canister’s valve completely and adjust the pressure from
the regulator between 60 and 65 psi. Check for leaks.
o Fill the insulated bucket with distilled or de-ionized water. Remove the left side
of the bucket lid. Carefully pour in enough water to cover the tops of the copper
coil. Leave at least 1 inch distance from the top to the water level. Replace the
lid.
Fill bucket to
cover coils
o Replace the top and secure with the two screws.
o Plug in the refrigeration unit to any suitable electrical outlet.
o Turn-on the power switch of the unit. The switch will “LIGHT” to indicate that
power is ON.
o Set the cold control to full cold (full clockwise rotation of the dial or screw).
o Before using the machine, allow it to finish at least one refrigeration cycle
(about 3-4 hours, assuming that the thermostat is positioned to number 8
setting or the screw is adjusted to the FULL clockwise rotation).
6.7
Equipment Settings
o Set the CO2 Pressure to 60-65 psig. Regulate the balance of pressure and
output of CO2 by using the T handle on the regulator. Turning clockwise, the
pressure increases. Turning counter-clockwise will cause the pressure to
decrease (Diagram 6).
o When the indicator on the pressure gauge begins to fall into the red and white
section, it is time to refill or replace the CO2 canister. Do not let the indicator fall
to the section that is completely red (RESERVE) as it will disrupt the supply of
sparkling or carbonated water.
o Incoming water pressure should be between 30 psi and 100 psi supplied to the
water pressure regulator.
17
7. MAINTENANCE:
NOTE: Service maintenance should only be carried out by qualified personnel, and only use
original NATURA Replacement Parts and equipment.
ATTENTION: The unit is plugged into 115VAC-60 Hz. Always disconnect the
power cord from the outlet before working on the unit.
7.1
Regular Maintenance
Every 3 months - In order to maintain the best refrigeration efficiency, clean the
condenser with a soft brush and vacuum cleaner, to prevent possible clogging of the
cooling fins.
Every 6 months, or before 10.000 liters of water usage, (depending on the daily
consumption) do the following:
o Replace All Three Filter Cartridges (see section 7.3).
o Inspect the water level of the water chiller bucket and fill if necessary.
o Wash and sterilize the unit and faucets (see section 7.2).
7.2
Washing and Sterilization
To keep and maintain the Natura™ Water Refrigeration unit in good working condition
and to guarantee quality and hygiene, it is a good practice to periodically disinfect the
water supply lines. Keep in mind that the frequency of this practice is inversely
proportionate to the amount of water that is dispensed by the unit. That is, a unit that is
used constantly should be cleaned more frequently than a unit that is used on
infrequently.
7.3
Replacing the Disposable Filter Cartridges
o Turn off the main water supply line and disconnect the power line from the unit.
o Remove the front cover of the filter box.
o Press the red button on top of the filter housing to release the pressure from the
line. (OR draw some water from the STILL water faucet.)
o Turn the filter sump (housing) counterclockwise to unscrew and remove it for
access to the filter cartridge. Be aware of water spillage while turning the
housing. NOTE: When opening the filter housing to change the cartridge, it is
common for the O-ring to lift out of the housing and stick to the cap.
o Remove the used filter cartridge and discard. Rinse out housing and fill about
1/3 full with water. Add about 2 to 3 tablespoons of bleach and scrub thoroughly
with brush or sponge. Rinse thoroughly.
o Remove O-ring from sump and wipe groove and O-ring clean. Lubricate O-ring
with a coat of clean silicone grease. Place O-ring back into the groove with two
fingers. NOTE: This step is important to ensure a proper seal. Make sure the Oring is seated level in the groove. CAUTION: If O-ring appears damaged or
crimped it should be replaced at this time. Contact your Natura Service
Dept for replacement parts.
18
o Insert a new filter cartridge making sure that it slips down over the sump
standpipe. The sediment filter (white) installs on the left (inlet) side. The carbon
filter (black with netting) installs on the right side.
o Screw the sump onto the cap and hand tighten. DO NOT OVER-TIGHTEN.
Make sure that the filter cartridge slips over the cap standpipe.
o Repeat this process to change the other filter cartridge.
o Turn on the main water supply line and check for any leaks from the housing.
o Re-install the filter box cover and restore the power to the unit and make any
necessary changes and calibration
7.4
Replacing the Air Filter (DIAGRAM 7)
o Turn-off the power switch and Disconnect the electric power cord from the
outlet.
o Remove the top cover of the unit by removing the two screws near the front.
Then, lift the front of the top and push back.
o Lift the air filter up and out of the cabinet.
o Slide a new air filter into place
o Replace the top and install the two screws to secure the top cover.
8. SPARE PARTS:
Use exclusively original parts. Contact your authorized service center or the
main office of the Natura Water, Inc.
9. Manufacturer’s Main Office Address and Contact Numbers:
NATURA WATER, INC with headquarters
222 East Campus View Blvd
Columbus, Ohio 43235
19
TROUBLESHOOTING:
10.
NOTE: ONLY SPECIALIZED OR QUALIFIED PERSONNEL SHOULD INTERVENE OR CARRY
OUT REPAIRS ON THE NATURA™ PURIFIERS.
PROBLEM
POSSIBLE CAUSE
SUGGESTION
Unit not working.
- No power.
- Check the power outlet and
connections and the circuit
breaker.
The refrigeration system is
working but the agitator has
stopped.
- The agitator motor has failed.
- Replace agitator.
The refrigeration system is not
cooling (the fan, compressor,
and the agitator are all
working).
- No refrigerant gas.
- Contact Technical assistance.
The refrigeration system is not
cooling the water (the fan has
stopped, but the compressor
and agitator are functioning).
- Condenser fan malfunction or
seized due to excessive
accumulation of lint or grease.
- Clean or replace the motor/fan.
The refrigeration system is not
cooling the water (the
condenser fan and the
compressor have stopped, the
agitator is still working).
- Thermostat was set too warm
- Water: Insufficient quantity in
the chiller bucket.
- Check the setting of the
The refrigeration system is not
cooling the water (the
compressor has stopped, the
fan and the agitator work).
- The thermal compressor
protector has been activated.
- Compressor relay is in short
circuit.
- Compressor defective.
- Wait for the compressor to restart
itself, if the problem persists call a
technician.
- Replace the relay.
- Replace the compressor.
The refrigeration system never
stops and the water is solid
ice.
- The thermostat is broken or set
to the maximum setting.
- Replace the thermostat or adjust
to warmer setting.
The carbonator water pump
makes a loud noise.
- Water pressure or supply is
insufficient due to clogged
filter(s).
- Main water supply Valve for the
filter box was set to minimum.
- Loose mounting screws
- Check and replace the water
filters.
- Check the supply valve and open
to the maximum setting.
- Check the mounting screws and
tighten if necessary.
20
thermostat..
- Refill the tub with distilled water.
- Set the thermostat to number 4
or 6 setting and wait a few hours
(upper middle setting)
- Add water to the bucket.
- Restart the unit or replace the
agitator.
- Set the thermostat lower towards
number 3 or 4 setting (middle
position)
The water temperature comes
out warm.
- Thermostat is set to minimum.
- Water insufficient level in the
tub.
- Agitator has stopped.
The water comes out too cold.
- Thermostat is set to the max.
setting.
The water has an unusual
taste.
- Carbon filter need to be
replaced.
- CO2 used was not for drinking
water.
- Too much iron in the water line
- Replace the carbon filter (see
section 7.3).
- Check the type of CO2 (UN
1013), if necessary change the
tank.
- Clean & sterilize the water lines
(see section 7.2).
Water is not sufficiently
carbonated.
- CO2 pressure is too low or
insufficient.
- CO2 canister is empty.
- Incorrect functioning of the
pump and motor.
- Accumulation of air in the
carbonator tank.
- Calibrate the pressure regulator
so that outgoing CO2 pressure is
between 90 to 100 psi.
- Replace the CO2 tank.
- Check that the motor and pump
are working well.
- Let the air out by pulling the ring
on the head of the carbonator
tank’s pressure relief valve.
- There is a leak in the supply
line, connectors or valve.
- With a paintbrush, soap and
water, wash the external lines
tubing of the CO2 tank so as to
pinpoint the leakage.
- Replace defective valve,
regulator/gasket or tubes.
- Carbonator or water pump’s
check valve malfunction or
defective.
- Insufficient water supply.
- Water pump not working.
- Check and replace the check
valve of the water or carbonator
pump.
- Check for clogged filters.
- Check or replace the water pump
CO2 gas runs out too fast.
CO2 gas comes out of the
carbonated water faucet (green
handle).
Carbonated water squirts out
of the flat water faucet.
- Carbonator check valve,
Faucet continues to drip.
- Defective gasket.
possibly stuck open.
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- Dismantle the valve and check
for residue on the inside, replace if
defective.
- Replace with a new gasket.
- The water is frozen around the
coils.
- Water tubes are clogged.
Water does not come out of the - Water tubes are kinked.
faucet.
- Polycarbonate adaptor to the
faucet is seized.
- The knob regulating the
adaptor is closed.
Water comes out very slowly.
- Tubes are kinked.
- Water shut-off valve closed or
set to minimum.
- Tubes are clogged.
- Sediment or Carbon filter is
blocked or excessively dirty.
- Water pressure is too low.
- Water pressure valve
malfunction.
-If ice has formed in the chiller
bucket, lower the thermostat to 3.
- Wash tubes that supply the
drinking water.
- Shut water off, remove the
faucet, remove the adaptor and
wash everything.
- Turn the knob counter clockwise.
- Check and clean the tubes.
- Open completely the water
supply line shut-off valve.
- Replace the filters (see section
7.3),
- Check the water pressure to the
unit (pressure should be approx.
50 psi).
- Check the main water supply
line.
11. MAINTENANCE RECORD:
SERIAL #: ________________________________
LOCATION: ____________________
SERVICE DATE:
SERVICE TECHNICIAN:
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SIGNATURE:
12.
PRODUCT SPECIFICATIONS
Model:
NWSD Series 2
Dimensions:
Refrigeration Unit
Filtration Box
Length
17” + 5” drip tray
6-1/32”
Width
17”
12-9/16”
Height
17-7/8”
12”
Weight
94 lbs
10 lbs
Refrigerant:
5 ounces, R-134a
Input Voltage:
115 VAC, 60 HZ, SINGLE PHASE
Amperage:
10 AMPS FLA
Minimum Ambient Temperature: 40° F (4.5° C)
Maximum Ambient Temperature: 104° F (43° C)
Inlet Water Pressure: 30 PSI – 120 PSI, SINGLE PHASE
CO2 Pressure Input: 60-65 psig (food grade CO2 only)
Filtration: 1.) 1 micron sediment filter
2.) 0.5 micron carbon - reduces cysts, chlorine taste and odor, sediment
3.) NANO CERAM FILTER
P/N 036333-002
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